10P/Tempel 2
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
28.04,
13.1,
1.3'
(M. Meyer,
0.05-m
Refractor + CCD);
26.97,
12.7,
0.7'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
26.04,
13.1,
1.5'
(M. Meyer,
0.05-m
Refractor + CCD);
25.07,
14.7,
0.4'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
24.80,
13.7,
1'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
24.69,
13.9,
1'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
24.01,
14.7,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
24.01,
13.5,
1.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
24.00,
15.1,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
23.98,
14.9,
1.6'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
23.97,
14.2,
0.39'
(S. Shurpakov,
Observatory Mazzarot-1 (MPC - A98),
0.41-m
Newtonian + CCD);
23.80,
14.3,
0.6'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
23.67,
14.2,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
23.06,
13.4,
1.6'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
23.05,
13.8,
0.7'
(M. Meyer,
0.05-m
Refractor + CCD);
22.95,
14.6,
0.28'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
22.80,
14.3,
0.8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
22.73,
14.3,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
22.70,
14.5,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
22.04,
14.4,
0.7'
(M. Meyer,
0.05-m
Refractor + CCD);
21.36,
13.3,
0.5'
(D. Bartlett,
June Lake Overlook (MPC U66),
0.28-m
Schmidt-Cassegrain + CCD;
0.6'
tail in p.a. 249 deg);
21.36,
13.2,
0.6'
(S. Baroni,
June Lake Overlook (MPC U66),
0.28-m
Schmidt-Cassegrain + CCD;
0.6'
tail in p.a. 249 deg);
20.10,
14.0,
1.5'
(P. Carson,
PGC, Fregenal de la Sierra,
0.315-m
Cassegrain reflector + CCD);
19.74,
14.6,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
19.74,
13.9,
0.6'
(O. Miyazaki,
0.32-m
Newtonian);
19.68,
14.9,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.72,
14.5,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
18.70,
15.1,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.26,
14.7,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.3-m
Hyperboloid astro-camera + CCD);
18.07,
14.5,
1'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
17.74,
15.0,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
17.71,
13.6,
1.6'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
17.69,
15.1,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
17.68,
14.3,
0.6'
(K. Harikae,
0.15-m
Newtonian + CCD);
17.11,
13.7,
1'
(J. Chambó Bris,
OAV, Valencia, Spain (MPC XXX),
0.2-m
Newtonian + CCD);
16.95,
14.6,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
16.74,
14.5,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
16.72,
14.6,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
16.02,
13.4,
0.8'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
15.69,
14.8,
0.5'
(K. Harikae,
0.15-m
Newtonian + CCD);
14.76,
14.1,
1.3'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
14.75,
13.5,
0.8'
(O. Miyazaki,
0.32-m
Newtonian);
13.77,
15.0,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
13.75,
13.1,
0.5'
(O. Miyazaki,
0.32-m
Newtonian);
13.73,
14.6,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
12.73,
14.4,
0.7'
(N. Paul,
iTelescope Observatory, Siding Spring (MPC Q62),
0.5-m
Schmidt-Cassegrain + CCD);
11.09,
15.7,
0.34'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
10.73,
14.8,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
10.06,
16.2,
1.6'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
09.75,
15.5,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
06.73,
15.5,
0.4'
(T. Yusa,
0.05-m
Refractor + CCD);
05.74,
15.7,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
03.99,
16.5,
0.22'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
24P/Schaumasse
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
27.99,
13.4,
2'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
26.97,
14.2,
1.7'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
26.86,
13.5,
1.1'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
25.94,
12.8,
2'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
24.94,
14.6,
1.2'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
24.46,
14.1,
1.2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
23.92,
15.5,
2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
23.92,
16.0,
0.45'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
0.5'
tail in p.a. 131 deg);
23.87,
12.5,
1.5'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
22.92,
14.6,
1.7'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
22.92,
16.0,
0.45'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
22.91,
14.2,
2.5'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
22.90,
13.6,
1.7'
(M. Meyer,
0.05-m
Refractor + CCD);
22.88,
14.0,
1'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
22.60,
14.2,
0.9'
(T. Yusa,
0.05-m
Refractor + CCD);
22.54,
14.4,
1.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
21.90,
11.8,
7.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.89,
12.9,
5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.89,
13.6,
5.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
5'
tail in p.a. 295 deg);
21.88,
13.2,
2.3'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
20.99,
13.0,
1.1'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
20.90,
14.4,
1.5'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
19.90,
13.4,
2.4'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
19.59,
13.7,
1.5'
(T. Yusa,
0.05-m
Refractor + CCD);
19.47,
14.0,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.89,
12.1,
6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.89,
12.6,
5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.88,
13.5,
5.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.59,
13.7,
1.3'
(T. Yusa,
0.05-m
Refractor + CCD);
18.48,
13.8,
1.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
17.64,
14.3,
1.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
17.55,
13.9,
1.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
17.54,
14.1,
1.4'
(T. Yusa,
0.05-m
Refractor + CCD);
17.53,
14.0,
1.5'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
16.94,
14.4,
1.5'
(P. Carson,
PGC, Fregenal de la Sierra,
0.315-m
Cassegrain reflector + CCD);
16.93,
15.7,
0.39'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
16.64,
14.2,
1.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
16.55,
13.8,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
16.55,
14.0,
1.1'
(T. Yusa,
0.05-m
Refractor + CCD);
16.14,
12.5,
0.7'
(S. Aguirre,
Real del Molinito, Son. (MPC XXX),
0.05-m
Refractor + CCD);
15.96,
14.7,
1'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
15.88,
12.6,
1.2'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
15.29,
15.5,
1'
(N. Paul,
iTelescope Observatory, Beryl Junction (MPC U94),
0.43-m
Schmidt-Cassegrain + CCD);
14.93,
14.4,
1.6'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
14.70,
14.7,
0.7'
(O. Miyazaki,
0.32-m
Newtonian);
13.94,
12.3,
3'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
13.88,
13.3,
8'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
13.62,
13.9,
1.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
13.12,
14.1,
1.4'
(T. Yusa,
0.05-m
Refractor + CCD);
12.87,
13.3,
10'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
12.64,
14.3,
1'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
12.63,
13.9,
1.4'
(T. Yusa,
0.05-m
Refractor + CCD);
11.91,
13.7,
2.2'
(P. Dekelver,
0.3-m
Newtonian + CCD;
8.8'
tail in p.a. 291 deg);
11.66,
14.3,
1'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
10.87,
14.1,
0.6'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
10.64,
14.2,
1.2'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
10.57,
13.9,
1.9'
(T. Yusa,
0.05-m
Refractor + CCD;
1.5'
tail in p.a. 291 deg);
10.56,
14.1,
1.2'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
10.02,
13.6,
8'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
2.8'
tail in p.a. 293 deg);
09.94,
14.1,
1'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
09.91,
12.0,
8.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
4.8'
tail in p.a. 294 deg);
09.90,
13.2,
7.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
6.7'
tail in p.a. 295 deg);
09.90,
12.2,
8.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
2.5'
tail in p.a. 293 deg);
09.89,
15.0,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
09.61,
13.7,
2.9'
(T. Yusa,
0.05-m
Refractor + CCD;
3.3'
tail in p.a. 297 deg);
09.52,
14.1,
1.2'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
09.14,
15.2,
0.6'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
08.95,
13.1,
2.8'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD;
3.1'
tail in p.a. 296 deg);
08.94,
12.7,
4'
(M. Meyer,
0.05-m
Refractor + CCD);
08.89,
14.5,
1.1'
(P. Dekelver,
0.3-m
Newtonian + CCD);
08.60,
13.0,
2.9'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
20'
tail in p.a. 290 deg);
08.19,
14.6,
0.9'
(S. Aguirre,
Real del Molinito, Son. (MPC XXX),
0.05-m
Refractor + CCD);
07.99,
12.9,
1.1'
(W. Kutschera,
0.508-m
Newtonian);
07.58,
13.5,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
06.58,
13.3,
1.4'
(T. Yusa,
0.05-m
Refractor + CCD);
06.52,
13.1,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
06.04,
16.6,
0.18'
(A. Garcia Sanchez,
Rio Cofio, Robledo de Chavela (MPC Z03),
0.25-m
Schmidt-Cassegrain + CCD);
05.90,
11.8,
10'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
2.4'
tail in p.a. 286 deg);
05.89,
13.1,
8.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
4.6'
tail in p.a. 289 deg);
05.89,
11.9,
8.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.60,
13.2,
2.2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
05.58,
13.5,
0.9'
(T. Yusa,
0.05-m
Refractor + CCD);
04.86,
11.6,
11.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
5.2'
tail in p.a. 294 deg);
04.85,
12.9,
8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
5.4'
tail in p.a. 294 deg);
04.85,
12.0,
8.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
03.90,
12.2,
1.2'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
03.88,
15.1,
0.51'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
03.86,
12.9,
8.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
4.1'
tail in p.a. 291 deg);
03.86,
11.2,
12'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
3.7'
tail in p.a. 288 deg);
03.86,
11.8,
9'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.98,
14.5,
0.46'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
02.88,
12.4,
8'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
02.83,
12.3,
6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.83,
11.5,
8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.82,
13.3,
6.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
3.5'
tail in p.a. 288 deg);
02.57,
12.7,
1.1'
(T. Yusa,
0.05-m
Refractor + CCD);
01.89,
13.3,
1.5'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
01.88,
14.5,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
apr
30.97,
13.3,
1.8'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
30.87,
15.5,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
30.86,
13.6,
4'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
30.56,
13.0,
1'
(T. Yusa,
0.05-m
Refractor + CCD);
29.95,
13.1,
2.2'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD;
2.1'
tail in p.a. 287 deg);
29.94,
13.3,
1.6'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
29.92,
13.2,
0.9'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
29.87,
15.2,
0.45'
(P. Dekelver,
0.3-m
Newtonian + CCD);
29.05,
12.5,
3.1'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
29.01,
11.9,
8.2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.21° tail in p.a. 291 deg);
29.01,
12.9,
2.7'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
28.98,
12.2,
3.1'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
28.95,
12.9,
2.4'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD;
2.7'
tail in p.a. 284 deg);
28.93,
13.2,
2.5'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
28.92,
13.5,
1.2'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
28.90,
14.2,
1'
(P. Dekelver,
0.3-m
Newtonian + CCD);
29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
27.88,
11.4,
4'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
26.87,
11.8,
3'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
25.89,
11.4,
3.1'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
24.87,
12.7,
2.9'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
23.84,
14.1,
1.2'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
22.87,
12.3,
2.8'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
22.85,
14.0,
1.3'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
22.56,
13.8,
1.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
22.49,
14.2,
1.5'
(T. Yusa,
0.05-m
Refractor + CCD);
21.89,
13.0,
2.2'
(D. Heggie,
ASERO, Valdin,
0.303-m
Newtonian + CCD);
21.87,
11.9,
2.8'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
21.86,
12.8,
2.3'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
21.86,
10.4,
9.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.85,
11.8,
7.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.85,
12.6,
8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.84,
10.9,
4.7'
(T. Csorgei,
Koliba_seestar (MPC 247),
0.05-m
Refractor + CCD);
21.84,
11.2,
4.7'
(T. Csorgei,
Koliba_seestar (MPC 247),
0.05-m
Refractor + CCD);
21.84,
10.7,
4.7'
(T. Csorgei,
Koliba_seestar (MPC 247),
0.05-m
Refractor + CCD);
20.93,
13.8,
1.4'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
20.89,
11.6,
3.8'
(D. Heggie,
ASERO, Valdin,
0.303-m
Newtonian + CCD);
19.92,
14.0,
1.3'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
19.89,
11.9,
3.1'
(D. Heggie,
ASERO, Valdin,
0.303-m
Newtonian + CCD);
19.87,
13.0,
1.2'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
19.84,
10.8,
6.3'
(T. Csorgei,
Koliba_seestar (MPC 247),
0.05-m
Refractor + CCD);
19.84,
10.8,
6.3'
(T. Csorgei,
Koliba_seestar (MPC 247),
0.05-m
Refractor + CCD);
19.56,
13.1,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
19.48,
13.3,
1.5'
(T. Yusa,
0.05-m
Refractor + CCD);
18.89,
12.0,
3.2'
(D. Heggie,
ASERO, Valdin,
0.303-m
Newtonian + CCD);
18.87,
10.7,
7.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.86,
12.8,
6.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.86,
12.1,
5.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.56,
13.8,
1.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
18.55,
13.2,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.49,
13.6,
1.8'
(T. Yusa,
0.05-m
Refractor + CCD);
17.89,
14.0,
1.2'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
17.89,
14.9,
0.6'
(R. Arnold,
ASERO, Valdin,
0.303-m
Newtonian + CCD);
17.87,
14.1,
1.3'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
17.86,
11.0,
6.3'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
17.86,
10.8,
6.3'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
17.56,
13.5,
1.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
17.50,
13.0,
1.8'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
17.49,
13.4,
1.8'
(T. Yusa,
0.05-m
Refractor + CCD);
16.90,
12.2,
3.1'
(D. Heggie,
ASERO, Valdin,
0.303-m
Newtonian + CCD);
16.89,
12.9,
3'
(P. Carson,
PGC, Fregenal de la Sierra,
0.315-m
Cassegrain reflector + CCD);
16.87,
14.9,
0.7'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
16.47,
13.0,
1.8'
(T. Yusa,
0.05-m
Refractor + CCD);
16.47,
13.3,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
16.14,
12.5,
0.9'
(S. Aguirre,
Real del Molinito, Son. (MPC XXX),
0.05-m
Refractor + CCD);
15.91,
12.1,
2.9'
(D. Heggie,
ASERO, Valdin,
0.303-m
Newtonian + CCD);
15.90,
13.1,
2.5'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
15.87,
14.4,
0.9'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
15.45,
13.3,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
14.95,
13.7,
1.4'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
14.61,
13.2,
1.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
13.87,
12.0,
12'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
13.85,
10.6,
7.8'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
13.85,
10.3,
7.8'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
13.85,
10.4,
7.8'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
13.53,
13.1,
1.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
13.47,
12.7,
2.1'
(T. Yusa,
0.05-m
Refractor + CCD);
12.95,
13.2,
1.8'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
12.85,
10.4,
7.8'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
12.85,
11.0,
7.8'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
12.85,
11.3,
7.8'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
12.84,
11.9,
12'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
2.4'
tail in p.a. 119 deg);
12.56,
13.3,
1.8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
12.47,
13.1,
1.8'
(T. Yusa,
0.05-m
Refractor + CCD);
11.93,
13.6,
1.4'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
11.89,
13.1,
2.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
11.56,
13.5,
1.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
10.88,
13.2,
1.8'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
10.84,
12.5,
3'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
10.56,
13.0,
2'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
10.51,
12.4,
3.1'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
10.50,
12.4,
2.8'
(T. Yusa,
0.05-m
Refractor + CCD);
09.92,
12.3,
3'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
09.91,
13.5,
1.4'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
09.87,
13.4,
1.9'
(P. Dekelver,
0.3-m
Newtonian + CCD);
09.86,
11.7,
10.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
09.86,
10.1,
14.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
09.86,
10.9,
12'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
08.89,
12.4,
3.1'
(M. Meyer,
0.05-m
Refractor + CCD);
08.88,
13.4,
1.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
08.87,
13.8,
1.1'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
08.86,
11.5,
5.1'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
08.39,
12.5,
3'
(C. Wyatt,
0.25-m
Newtonian);
08.13,
14.4,
0.9'
(S. Aguirre,
Real del Molinito, Son. (MPC XXX),
0.05-m
Refractor + CCD);
07.56,
13.0,
1'
(T. Yusa,
0.05-m
Refractor + CCD);
07.54,
13.0,
1.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
06.47,
13.1,
1.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
06.46,
12.7,
2.1'
(T. Yusa,
0.05-m
Refractor + CCD);
06.42,
11.3,
3.9'
(N. Paul,
iTelescope Observatory, Siding Spring (MPC Q62),
0.43-m
Schmidt-Cassegrain + CCD);
05.93,
12.8,
2'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
05.87,
12.0,
11.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.87,
11.3,
12'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.87,
10.2,
14.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.52,
13.5,
1.4'
(T. Yusa,
0.05-m
Refractor + CCD);
05.46,
13.4,
1.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
04.87,
13.2,
1.4'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
04.83,
9.8,
15.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
04.82,
10.6,
13.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
04.82,
11.5,
12.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
04.56,
12.8,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
03.88,
11.9,
2.3'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
03.85,
9.9,
15.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
03.85,
11.1,
11'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
03.84,
11.7,
10.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
03.82,
10.8,
6.2'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
03.82,
11.3,
6.2'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
03.82,
11.0,
6.2'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
03.82,
13.8,
0.5'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
03.54,
13.0,
1.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
03.06,
13.0,
3.1'
(W. Souza,
0.05-m
Refractor + CCD);
02.94,
14.1,
0.43'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
02.90,
11.4,
12'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
02.86,
11.0,
6.3'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
02.86,
10.7,
6.3'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
02.86,
10.7,
6.3'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
02.86,
12.0,
12'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
02.82,
11.0,
10.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.82,
10.3,
12'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.81,
12.0,
9.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.54,
13.1,
1.6'
(T. Yusa,
0.05-m
Refractor + CCD);
02.51,
12.4,
1.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
01.86,
13.1,
1.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
01.84,
12.8,
1.8'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
01.46,
12.9,
1.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
apr
30.86,
13.2,
1.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
30.86,
11.7,
4.4'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
30.82,
10.3,
6.3'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
30.82,
10.3,
6.3'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
30.82,
10.2,
6.3'
(T. Csorgei,
TU_seestar (MPC 247),
0.05-m
Refractor + CCD);
30.81,
11.8,
10'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
30.52,
12.8,
1.3'
(T. Yusa,
0.05-m
Refractor + CCD);
29.91,
12.7,
1.7'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
29.90,
13.7,
0.7'
(T. Sciezor,
Cracow,
0.05-m
Camera lens + CCD);
29.85,
13.4,
1.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
29.85,
11.9,
7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
29.85,
11.2,
6.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
29.85,
9.5,
8.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
29.84,
12.8,
1.9'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
28.95,
11.7,
6.4'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
28.88,
13.5,
1'
(P. Dekelver,
0.3-m
Newtonian + CCD);
28.86,
13.0,
1.8'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
28.84,
12.4,
2.4'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
43P/Wolf-Harrington
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
21.86,
18.8,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
19.95,
18.8,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
16.58,
17.9,
0.35'
(A. Pearce,
Perth Observatory, Bickle,
0.35-m
Schmidt-Cassegrain + CCD);
13.52,
17.6,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
12.93,
18.7,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
09.87,
19.1,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
07.52,
17.6,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
05.99,
19.0,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
05.47,
17.6,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
03.85,
17.8,
0.22'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
03.84,
18.4,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.86,
18.1,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
63P/Wild
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
23.88,
16.7,
0.8'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
21.85,
14.2,
2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.84,
14.5,
1.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.84,
15.4,
1.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
19.52,
15.0,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
18.85,
14.3,
1.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.84,
14.7,
1.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.84,
15.4,
1.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.52,
15.0,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
17.47,
14.9,
1'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
16.49,
14.7,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
15.18,
15.8,
0.38'
(N. Paul,
iTelescope Observatory, Beryl Junction (MPC U94),
0.43-m
Schmidt-Cassegrain + CCD);
14.87,
15.2,
1.4'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
13.84,
16.1,
1.2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
13.51,
14.7,
1.6'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
12.86,
15.8,
2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
12.50,
15.1,
0.9'
(T. Yusa,
0.05-m
Refractor + CCD);
10.47,
14.7,
1.2'
(T. Yusa,
0.05-m
Refractor + CCD);
09.84,
13.8,
2.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
09.83,
15.2,
2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
09.83,
14.7,
1.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
08.96,
16.2,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
06.50,
15.2,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
05.84,
15.2,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.84,
14.1,
2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.83,
15.4,
1.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.50,
15.0,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
04.84,
14.7,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
04.83,
15.6,
1.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
04.83,
15.1,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.87,
15.7,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.3'
tail in p.a. 289 deg);
02.86,
16.2,
0.9'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 292 deg);
02.86,
16.1,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
01.98,
16.6,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
apr
29.98,
16.6,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
29.84,
15.4,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.1'
tail in p.a. 287 deg);
29.84,
15.7,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 290 deg);
29.83,
15.9,
1.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 286 deg);
28.93,
16.4,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
28.85,
16.1,
1.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.7'
tail in p.a. 281 deg);
28.85,
14.0,
3.5'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.8'
tail in p.a. 271 deg);
28.85,
15.8,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
28.85,
15.6,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.5'
tail in p.a. 282 deg);
65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
24.85,
18.4,
0.35'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
16.87,
18.8,
0.35'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
84P/Giclas
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
25.14,
20.1,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
88P/Howell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
24.88,
10.9,
3.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
10.7'
tail in p.a. 244 deg);
24.88,
11.0,
2.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
23.88,
10.9,
2.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
22.89,
11.1,
3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
9.7'
tail in p.a. 245 deg);
22.88,
10.8,
2.8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
19.89,
11.0,
3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
12'
tail in p.a. 245 deg);
18.89,
11.0,
3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
9.8'
tail in p.a. 244 deg);
18.88,
10.8,
2.8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
17.89,
11.1,
2.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
7.7'
tail in p.a. 242 deg);
16.89,
10.9,
3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
10.9'
tail in p.a. 242 deg);
16.88,
10.6,
3'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
16.48,
12.2,
1.2'
(S. Aguirre,
Real del Molinito, Son. (MPC XXX),
0.05-m
Refractor + CCD);
15.76,
10.9,
2.2'
(K. Harikae,
0.15-m
Newtonian + CCD);
12.88,
10.5,
2'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
11.88,
10.5,
3'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
10.88,
10.5,
3'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
09.88,
10.5,
3'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
08.88,
10.4,
3'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
07.89,
10.6,
3.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
10.2'
tail in p.a. 245 deg);
06.89,
10.8,
3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
9.5'
tail in p.a. 245 deg);
05.89,
10.9,
2.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
7.3'
tail in p.a. 246 deg);
04.89,
10.8,
2.5'
(A. Pearce,
Perth Observatory, Bickley (MPC 323),
0.35-m
Schmidt-Cassegrain + CCD;
5.3'
tail in p.a. 243 deg);
03.89,
10.8,
2.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
7.1'
tail in p.a. 243 deg);
01.89,
11.0,
2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
124P/Mrkos
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
11.91,
19.4,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
11.51,
19.6,
0.2'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
137P/Shoemaker-Levy
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
18.15,
19.4,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.3-m
Hyperboloid astro-camera + CCD);
164P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
21.86,
18.7,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
14.99,
18.9,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
06.00,
19.0,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
03.87,
18.4,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
195P/Hill
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
11.88,
18.4,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
210P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
09.15,
19.5,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
03.87,
18.3,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
215P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
12.97,
20.8,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
218P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
15.20,
19.6,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
220P/McNaught
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
28.19,
17.9,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
18.34,
17.6,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.3-m
Hyperboloid astro-camera + CCD);
235P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
25.98,
14.5,
0.7'
(M. Meyer,
0.05-m
Refractor + CCD);
24.55,
14.5,
0.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
8'
tail in p.a. 259 deg);
23.97,
13.2,
1.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
4.1'
tail in p.a. 255 deg);
23.96,
14.0,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
2.2'
tail in p.a. 254 deg);
23.96,
14.6,
1.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
4.7'
tail in p.a. 255 deg);
23.93,
16.8,
0.8'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
23.87,
14.7,
0.39'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
0.7'
tail in p.a. 240 deg);
23.64,
14.4,
0.6'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
1'
tail in p.a. 256 deg);
23.57,
14.5,
0.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
8.6'
tail in p.a. 258 deg);
22.99,
14.1,
0.6'
(M. Meyer,
0.05-m
Refractor + CCD;
0.7'
tail in p.a. 257 deg);
22.99,
13.9,
0.28'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
22.64,
14.6,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
0.8'
tail in p.a. 237 deg);
22.63,
14.3,
0.8'
(T. Yusa,
0.05-m
Refractor + CCD);
22.61,
14.5,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
9.2'
tail in p.a. 255 deg);
21.96,
14.4,
0.6'
(M. Meyer,
0.05-m
Refractor + CCD;
0.8'
tail in p.a. 253 deg);
21.31,
14.4,
0.7'
(D. Bartlett,
June Lake Overlook (MPC U66),
0.28-m
Schmidt-Cassegrain + CCD;
5.7'
tail in p.a. 266 deg);
20.06,
13.8,
1.5'
(P. Carson,
PGC, Fregenal de la Sierra,
0.315-m
Cassegrain reflector + CCD);
20.03,
14.9,
0.5'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
19.94,
14.1,
2.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
5.2'
tail in p.a. 256 deg);
19.94,
14.8,
2.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
6.8'
tail in p.a. 258 deg);
19.94,
12.7,
2.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
6.3'
tail in p.a. 257 deg);
19.65,
14.3,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD;
2'
tail in p.a. 260 deg);
19.57,
14.7,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
6.4'
tail in p.a. 254 deg);
18.72,
14.5,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
1.1'
tail in p.a. 242 deg);
18.63,
14.7,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
18.59,
14.5,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
6.7'
tail in p.a. 258 deg);
17.72,
14.5,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
1.2'
tail in p.a. 251 deg);
17.68,
14.4,
0.9'
(K. Harikae,
0.15-m
Newtonian + CCD);
17.65,
14.4,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD;
3.3'
tail in p.a. 261 deg);
17.58,
14.1,
1'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
17.57,
14.4,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
4.4'
tail in p.a. 254 deg);
16.72,
14.5,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
1.6'
tail in p.a. 261 deg);
16.66,
14.4,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
6.9'
tail in p.a. 260 deg);
15.68,
14.0,
0.9'
(K. Harikae,
0.15-m
Newtonian + CCD);
15.33,
14.4,
0.38'
(N. Paul,
iTelescope Observatory, Beryl Junction (MPC U94),
0.43-m
Schmidt-Cassegrain + CCD);
13.91,
15.3,
2.8'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
3.9'
tail in p.a. 260 deg);
13.73,
14.3,
0.8'
(A. Pearce,
Perth Observatory, Bickley (MPC 323),
0.35-m
Schmidt-Cassegrain + CCD;
9.8'
tail in p.a. 258 deg);
13.65,
14.6,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD;
0.7'
tail in p.a. 253 deg);
12.93,
15.2,
2.8'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
3.7'
tail in p.a. 263 deg);
12.72,
14.6,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
0.9'
tail in p.a. 249 deg);
11.72,
14.5,
0.8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
1.1'
tail in p.a. 250 deg);
10.72,
14.8,
0.8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
1.4'
tail in p.a. 246 deg);
10.65,
14.6,
0.8'
(T. Yusa,
0.05-m
Refractor + CCD;
0.6'
tail in p.a. 266 deg);
10.08,
15.1,
3.2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
2.6'
tail in p.a. 264 deg);
10.01,
14.8,
0.6'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
09.66,
14.3,
0.9'
(T. Yusa,
0.05-m
Refractor + CCD;
3.4'
tail in p.a. 257 deg);
09.02,
15.6,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.5'
tail in p.a. 265 deg);
08.99,
14.2,
1'
(M. Meyer,
0.05-m
Refractor + CCD;
7.7'
tail in p.a. 265 deg);
07.64,
14.4,
0.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
8.8'
tail in p.a. 261 deg);
06.64,
14.3,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
05.62,
14.5,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD;
0.6'
tail in p.a. 274 deg);
04.02,
14.1,
0.27'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
03.01,
14.3,
0.45'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
02.04,
15.7,
0.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
01.04,
15.4,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.9'
tail in p.a. 264 deg);
apr
30.04,
15.8,
0.22'
(P. Dekelver,
0.3-m
Newtonian + CCD;
1.1'
tail in p.a. 260 deg);
29.07,
13.9,
1.4'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
240P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
21.83,
18.0,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
09.83,
15.6,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
09.82,
16.7,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
09.82,
17.4,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.82,
16.0,
0.9'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.82,
16.1,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 85 deg);
05.82,
14.9,
1.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.5'
tail in p.a. 82 deg);
03.82,
15.7,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
03.82,
16.9,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
03.82,
16.4,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
apr
29.96,
17.0,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
29.83,
17.0,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
29.83,
16.1,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
29.82,
16.8,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
28.83,
17.2,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
28.83,
15.9,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
28.82,
17.2,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
23.47,
15.2,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
23.45,
15.3,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
22.47,
15.0,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
22.46,
15.0,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
19.49,
14.9,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.50,
14.9,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.47,
14.6,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
13.45,
15.5,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
12.47,
15.0,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
11.47,
14.6,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
10.47,
14.8,
0.7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
07.46,
14.8,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
06.53,
14.6,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
05.52,
14.7,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
04.48,
14.6,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
27.93,
15.3,
0.7'
(M. Meyer,
0.05-m
Refractor + CCD);
25.93,
15.7,
0.7'
(M. Meyer,
0.05-m
Refractor + CCD);
24.97,
16.3,
0.4'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
24.63,
15.4,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
2.8'
tail in p.a. 236 deg);
23.99,
17.0,
0.22'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
23.94,
16.6,
0.8'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
23.94,
14.4,
1.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.2'
tail in p.a. 238 deg);
23.94,
16.2,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
23.94,
15.9,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.4'
tail in p.a. 239 deg);
23.62,
15.6,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
5.2'
tail in p.a. 239 deg);
22.93,
15.5,
0.9'
(M. Meyer,
0.05-m
Refractor + CCD);
22.66,
15.2,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
22.62,
15.6,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
4.5'
tail in p.a. 232 deg);
21.93,
15.8,
0.6'
(M. Meyer,
0.05-m
Refractor + CCD);
19.92,
14.0,
2.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
2.6'
tail in p.a. 240 deg);
19.92,
15.7,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.5'
tail in p.a. 236 deg);
19.91,
15.7,
1.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
2.2'
tail in p.a. 240 deg);
19.66,
15.5,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
19.63,
15.6,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
17.67,
15.3,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
17.64,
15.6,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
16.96,
15.4,
0.8'
(P. Carson,
PGC, Fregenal de la Sierra,
0.315-m
Cassegrain reflector + CCD);
16.67,
15.5,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
2.6'
tail in p.a. 234 deg);
16.67,
15.5,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
13.90,
15.8,
2.4'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
1.1'
tail in p.a. 237 deg);
13.71,
15.5,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
12.94,
15.8,
2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
12.90,
15.7,
2.8'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
0.7'
tail in p.a. 232 deg);
10.67,
15.5,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
10.04,
15.9,
2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
0.2'
tail in p.a. 222 deg);
09.68,
15.4,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD;
0.7'
tail in p.a. 229 deg);
09.57,
15.4,
0.5'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
09.11,
16.1,
0.34'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
09.03,
15.6,
0.8'
(P. Dekelver,
0.3-m
Newtonian + CCD);
08.96,
15.8,
0.6'
(M. Meyer,
0.05-m
Refractor + CCD);
07.68,
15.5,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
06.67,
15.3,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
02.06,
16.6,
0.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
01.05,
15.8,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
apr
30.08,
16.1,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
30.08,
15.3,
0.8'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
30.04,
15.1,
1.2'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
30.01,
15.3,
1'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
29.98,
15.2,
1.1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.1° tail in p.a. 234 deg);
29.01,
15.4,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
25.16,
18.0,
0.28'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
15.19,
17.7,
0.28'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
apr
30.06,
17.2,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
02.81,
16.0,
2.4'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
23.90,
16.1,
1.2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
19.54,
15.4,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
18.86,
15.3,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
2.6'
tail in p.a. 251 deg);
18.85,
16.2,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.6'
tail in p.a. 256 deg);
18.85,
16.2,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
2.7'
tail in p.a. 252 deg);
18.54,
15.2,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
16.52,
15.4,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
15.92,
15.8,
0.45'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
15.51,
15.6,
0.6'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
4'
tail in p.a. 250 deg);
13.85,
15.8,
2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
3.2'
tail in p.a. 249 deg);
13.50,
15.4,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
12.88,
15.8,
1.6'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
3.1'
tail in p.a. 245 deg);
12.54,
15.1,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
10.54,
15.5,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
10.47,
14.6,
0.8'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
09.93,
15.7,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD;
4'
tail in p.a. 249 deg);
09.85,
14.8,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
3.6'
tail in p.a. 247 deg);
09.85,
15.6,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
3.1'
tail in p.a. 247 deg);
09.84,
15.8,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
4.6'
tail in p.a. 245 deg);
09.58,
15.3,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
08.91,
15.7,
0.45'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.9'
tail in p.a. 250 deg);
08.87,
15.3,
0.9'
(M. Meyer,
0.05-m
Refractor + CCD);
06.55,
15.2,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
05.86,
14.9,
1.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
3.5'
tail in p.a. 247 deg);
05.85,
16.2,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
3.8'
tail in p.a. 243 deg);
05.85,
15.8,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
3.1'
tail in p.a. 245 deg);
05.54,
15.4,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
02.93,
15.5,
2.4'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
5.5'
tail in p.a. 251 deg);
02.90,
15.4,
0.6'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
5.1'
tail in p.a. 250 deg);
02.86,
15.7,
1.2'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
02.84,
15.6,
2.4'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
4.1'
tail in p.a. 249 deg);
02.61,
15.3,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
01.96,
15.3,
0.8'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
5.4'
tail in p.a. 248 deg);
01.94,
15.6,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
2.4'
tail in p.a. 244 deg);
01.92,
15.4,
0.9'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
3.1'
tail in p.a. 246 deg);
01.89,
15.7,
0.7'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
3.4'
tail in p.a. 242 deg);
01.85,
15.6,
0.6'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
7.9'
tail in p.a. 247 deg);
apr
30.92,
16.0,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.4'
tail in p.a. 248 deg);
30.84,
15.8,
2.4'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD;
1.6'
tail in p.a. 254 deg);
29.96,
15.4,
0.8'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
4.5'
tail in p.a. 249 deg);
29.94,
15.7,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.5'
tail in p.a. 250 deg);
29.92,
15.3,
1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.1° tail in p.a. 249 deg);
29.92,
15.3,
0.9'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
3.9'
tail in p.a. 242 deg);
29.89,
15.3,
0.9'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
5.1'
tail in p.a. 244 deg);
29.87,
15.1,
0.5'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
5'
tail in p.a. 248 deg);
29.86,
16.4,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
2.3'
tail in p.a. 248 deg);
29.86,
16.0,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
5.2'
tail in p.a. 249 deg);
29.86,
15.0,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
4.7'
tail in p.a. 251 deg);
28.93,
15.3,
0.8'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
5.5'
tail in p.a. 246 deg);
28.91,
15.5,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
6.7'
tail in p.a. 246 deg);
28.90,
15.3,
0.8'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
5.4'
tail in p.a. 244 deg);
28.89,
15.1,
0.5'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
5.3'
tail in p.a. 247 deg);
28.86,
15.3,
0.9'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD;
4.7'
tail in p.a. 246 deg);
28.84,
15.7,
0.9'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
2.6'
tail in p.a. 245 deg);
28.84,
15.0,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
4.1'
tail in p.a. 248 deg);
28.83,
16.1,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
5.6'
tail in p.a. 245 deg);
C/2022 R6 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
22.47,
16.6,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
19.50,
16.8,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
13.48,
17.0,
0.45'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
11.89,
17.2,
0.28'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
07.47,
16.5,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
05.85,
17.4,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.53,
16.2,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
03.84,
17.5,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
apr
29.91,
17.1,
0.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
28.82,
16.9,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
C/2023 F3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
22.49,
17.6,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
19.52,
18.0,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
17.90,
18.6,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
08.94,
18.4,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
09.17,
18.6,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
27.97,
13.6,
1'
(M. Meyer,
0.05-m
Refractor + CCD);
25.95,
13.5,
0.8'
(M. Meyer,
0.05-m
Refractor + CCD);
24.60,
13.8,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
23.98,
12.5,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
23.97,
13.2,
0.9'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
23.97,
13.5,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
23.95,
14.6,
2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
23.94,
12.8,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
23.72,
13.7,
0.6'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
23.62,
13.7,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
22.96,
13.1,
0.7'
(M. Meyer,
0.05-m
Refractor + CCD);
22.72,
13.7,
0.6'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
22.70,
13.1,
0.9'
(T. Yusa,
0.05-m
Refractor + CCD);
22.64,
13.9,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
21.98,
13.3,
0.9'
(M. Meyer,
0.05-m
Refractor + CCD);
20.08,
12.5,
0.9'
(P. Carson,
PGC, Fregenal de la Sierra,
0.315-m
Cassegrain reflector + CCD);
20.06,
13.5,
0.8'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
19.95,
13.6,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
19.95,
13.7,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.6'
tail in p.a. 55 deg);
19.95,
13.0,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.5'
tail in p.a. 59 deg);
19.72,
13.0,
0.6'
(O. Miyazaki,
0.32-m
Newtonian);
19.70,
13.6,
0.9'
(T. Yusa,
0.05-m
Refractor + CCD);
19.62,
13.9,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.80,
13.7,
0.6'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
18.70,
13.6,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
18.63,
13.9,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
17.80,
13.6,
0.6'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
17.71,
13.6,
0.8'
(T. Yusa,
0.05-m
Refractor + CCD);
17.68,
13.7,
0.8'
(K. Harikae,
0.15-m
Newtonian + CCD);
17.63,
13.8,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
16.97,
13.4,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
16.80,
13.8,
0.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
16.71,
13.8,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
16.70,
13.9,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
16.36,
14.3,
1.2'
(S. Aguirre,
Real del Molinito, Son. (MPC XXX),
0.05-m
Refractor + CCD);
15.69,
13.8,
0.5'
(K. Harikae,
0.15-m
Newtonian + CCD);
14.73,
13.9,
0.8'
(O. Miyazaki,
0.32-m
Newtonian);
13.76,
14.0,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
13.73,
13.2,
0.4'
(O. Miyazaki,
0.32-m
Newtonian);
13.71,
13.8,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
12.80,
13.7,
0.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
11.80,
14.1,
0.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
10.80,
13.8,
0.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD);
10.71,
13.8,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
10.07,
14.0,
1.6'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
09.73,
14.0,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
09.05,
15.0,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
08.98,
13.8,
0.6'
(M. Meyer,
0.05-m
Refractor + CCD);
05.73,
13.9,
0.3'
(T. Yusa,
0.05-m
Refractor + CCD);
03.95,
13.7,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
02.08,
14.7,
0.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
01.07,
14.5,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
apr
30.10,
14.7,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
30.08,
13.9,
1.1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
2.5'
tail in p.a. 50 deg);
29.03,
14.9,
0.45'
(P. Dekelver,
0.3-m
Newtonian + CCD);
C/2023 X2 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
25.92,
18.7,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
17.93,
18.8,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
13.00,
18.5,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
06.97,
18.3,
0.25'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
05.07,
18.5,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
C/2024 A1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
25.88,
18.8,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
05.83,
18.1,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
apr
28.86,
18.1,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr
28.82,
17.3,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
28.81,
18.9,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
28.81,
18.7,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
C/2024 G2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
19.96,
19.6,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
14.97,
19.3,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
05.94,
19.2,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
C/2024 G6 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
24.96,
17.5,
0.28'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
23.96,
16.4,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1'
tail in p.a. 170 deg);
23.95,
16.9,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.6'
tail in p.a. 169 deg);
23.95,
17.4,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.1'
tail in p.a. 169 deg);
22.61,
17.0,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
21.90,
17.6,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.4'
tail in p.a. 166 deg);
19.93,
17.3,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.7'
tail in p.a. 167 deg);
19.93,
16.7,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.3'
tail in p.a. 172 deg);
19.93,
17.6,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.4'
tail in p.a. 171 deg);
17.97,
17.5,
0.28'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
13.63,
16.7,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
13.01,
17.2,
0.34'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
11.54,
17.3,
0.4'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
1'
tail in p.a. 175 deg);
09.64,
17.2,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
09.12,
17.3,
0.28'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
08.99,
17.3,
0.45'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.3'
tail in p.a. 188 deg);
02.02,
17.5,
0.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
01.02,
17.5,
0.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
apr
30.02,
17.5,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
C/2024 J3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
28.00,
14.5,
0.9'
(M. Meyer,
0.05-m
Refractor + CCD;
0.9'
tail in p.a. 208 deg);
26.01,
14.1,
0.9'
(M. Meyer,
0.05-m
Refractor + CCD);
24.79,
14.5,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
24.03,
12.8,
2.5'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
23.99,
13.5,
1.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
23.98,
14.6,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
23.98,
14.9,
1.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
23.96,
15.2,
1.2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
23.79,
14.5,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
23.02,
14.4,
0.6'
(M. Meyer,
0.05-m
Refractor + CCD);
22.97,
14.5,
0.45'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
22.79,
14.5,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
22.68,
14.3,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
22.01,
14.7,
0.6'
(M. Meyer,
0.05-m
Refractor + CCD);
19.97,
13.7,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
19.96,
14.8,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
19.96,
15.0,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
19.80,
14.6,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
19.68,
14.1,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
18.79,
14.7,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.68,
14.1,
0.6'
(T. Yusa,
0.05-m
Refractor + CCD);
17.79,
14.3,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
17.69,
14.4,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
16.99,
15.3,
0.28'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
16.79,
14.4,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
16.37,
16.1,
0.7'
(S. Aguirre,
Real del Molinito, Son. (MPC XXX),
0.05-m
Refractor + CCD);
13.69,
14.2,
0.8'
(T. Yusa,
0.05-m
Refractor + CCD);
12.96,
14.9,
1.2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
10.69,
14.2,
0.7'
(T. Yusa,
0.05-m
Refractor + CCD);
10.06,
14.5,
0.6'
(M. Meyer,
0.05-m
Refractor + CCD);
10.05,
15.2,
1.2'
(T. Csorgei,
0.28-m
Schmidt-Cassegrain + CCD);
09.70,
14.3,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
09.07,
15.3,
0.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
09.01,
14.9,
0.6'
(M. Meyer,
0.05-m
Refractor + CCD);
08.71,
14.9,
0.5'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
07.81,
14.5,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
06.69,
15.3,
0.4'
(T. Yusa,
0.05-m
Refractor + CCD);
03.93,
15.7,
0.25'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
03.04,
15.7,
0.23'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
01.09,
15.3,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
apr
30.03,
14.5,
1.1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
2.1'
tail in p.a. 203 deg);
C/2024 R4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
25.11,
16.0,
0.34'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
24.00,
15.7,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 186 deg);
24.00,
16.3,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.2'
tail in p.a. 184 deg);
23.99,
16.7,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 186 deg);
20.12,
16.0,
0.4'
(P. Carson,
PGC, Fregenal de la Sierra,
0.315-m
Cassegrain reflector + CCD);
19.98,
15.3,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.5'
tail in p.a. 185 deg);
19.97,
16.5,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 184 deg);
19.97,
16.1,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.3'
tail in p.a. 187 deg);
09.21,
16.0,
0.28'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
09.08,
16.0,
0.45'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.4'
tail in p.a. 193 deg);
02.11,
16.2,
0.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
apr
30.99,
15.9,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
29.07,
15.9,
0.6'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.5'
tail in p.a. 181 deg);
C/2025 A1 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
27.90,
18.3,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
11.90,
18.3,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
C/2025 A6 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
23.49,
15.2,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
22.51,
15.5,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
19.54,
15.4,
0.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.56,
15.3,
0.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
17.52,
15.5,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
16.60,
15.4,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
13.55,
15.4,
0.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
07.55,
14.9,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
06.59,
15.1,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
05.50,
15.2,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
04.53,
15.4,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
C/2025 J1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
05.83,
17.6,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.5'
tail in p.a. 23 deg);
03.83,
18.3,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 20 deg);
apr
29.87,
17.5,
0.5'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.9'
tail in p.a. 17 deg);
C/2025 R3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
24.44,
8.2,
5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
40.8'
tail in p.a. 131 deg);
23.44,
8.1,
5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
38.7'
tail in p.a. 131 deg);
22.45,
7.9,
5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
37'
tail in p.a. 130 deg);
20.28,
6.8,
5'
(S. Rae,
Hamilton, New Zealand,
9x63.0
Binoculars);
19.32,
6.9,
6'
(S. Rae,
Hamilton,
9x63.0
Binoculars);
19.13,
6.8,
4'
(M. Olason,
Tucson, Arizona,
0.05-m
Refractor + CCD);
18.97,
6.9,
5.8'
(J. Koukal,
La Silla,
0.01-m
Camera lens + CCD;
1° tail in p.a. 125 deg);
18.45,
7.4,
6'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
43.6'
tail in p.a. 129 deg);
18.40,
6.8,
3'
(M. Mattiazzo,
Alpana station, South Australia,
10x50
Binoculars;
1° tail in p.a. 127 deg);
17.97,
6.4,
6.5'
(J. Koukal,
La Silla,
0.01-m
Camera lens + CCD;
1.2° tail in p.a. 122 deg);
17.47,
7.2,
6'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
43.7'
tail in p.a. 126 deg);
17.40,
6.6,
4'
(M. Mattiazzo,
Alpana station, South Australia,
15x70
Binoculars;
1° tail in p.a. 127 deg);
17.13,
6.6,
4'
(M. Olason,
Tucson, Arizona,
0.05-m
Refractor + CCD);
16.99,
7.7,
7.4'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
2.1° tail in p.a. 124 deg);
16.99,
7.5,
10.1'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
5.3° tail in p.a. 126 deg);
16.99,
6.8,
10.1'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
2.7° tail in p.a. 125 deg);
16.97,
6.5,
6.3'
(J. Koukal,
La Silla,
0.01-m
Camera lens + CCD;
1.3° tail in p.a. 124 deg);
16.93,
6.5,
4.5'
(M. Goiato,
20x100
Binoculars;
0.5° tail in p.a. 130 deg);
16.13,
6.5,
4'
(M. Olason,
Tucson, Arizona,
0.05-m
Refractor + CCD);
15.99,
7.6,
7.8'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
1.6° tail in p.a. 127 deg);
15.99,
7.3,
10.1'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
2.8° tail in p.a. 128 deg);
15.99,
6.7,
10.1'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
2.3° tail in p.a. 128 deg);
15.45,
6.9,
6'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
37.7'
tail in p.a. 130 deg);
15.31,
6.3,
7'
(S. Rae,
Hamilton,
9x63.0
Binoculars);
15.14,
6.2,
5'
(M. Olason,
Tucson, Arizona,
0.05-m
Refractor + CCD);
14.99,
7.3,
10.6'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
2.3° tail in p.a. 131 deg);
14.99,
7.5,
7.8'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
1.3° tail in p.a. 130 deg);
14.99,
6.6,
10.1'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
2.1° tail in p.a. 131 deg);
14.40,
6.2,
4'
(M. Mattiazzo,
Alpana station, South Australia,
15x70
Binoculars;
1.3° tail in p.a. 127 deg);
14.29,
6.3,
7'
(S. Rae,
Hamilton,
9x63.0
Binoculars);
14.13,
6.2,
5'
(M. Olason,
Tucson, Arizona,
0.03-m
Refractor + CCD);
13.99,
7.2,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
6° tail in p.a. 127 deg);
13.99,
7.5,
8.3'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
2.9° tail in p.a. 126 deg);
13.99,
6.5,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
3.4° tail in p.a. 126 deg);
13.95,
6.2,
4'
(M. Goiato,
7x50
Binoculars;
0.3° tail in p.a. 125 deg);
13.91,
5.9,
2.2'
(A. Ferrao,
0.114-m
Newtonian);
13.90,
5.8,
3'
(A. Ferrao,
7x50
Binoculars);
13.90,
6.0,
--
(A. Amorim,
9x50
Binoculars);
13.45,
6.5,
7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
42.2'
tail in p.a. 125 deg);
13.40,
6.1,
4'
(M. Mattiazzo,
Strathalbyn, South Australia,
8x40
Binoculars;
1° tail in p.a. 127 deg);
12.99,
6.2,
7.2'
(J. Koukal,
La Silla,
0.01-m
Camera lens + CCD;
1.2° tail in p.a. 120 deg);
12.95,
6.0,
5'
(M. Goiato,
7x50
Binoculars;
0.5° tail in p.a. 125 deg);
12.92,
6.0,
5'
(W. Souza,
10x50
Binoculars);
12.91,
5.5,
3'
(A. Ferrao,
0.114-m
Newtonian);
12.90,
5.8,
4'
(L. Camargo da Silva,
São José dos Campos, São Paulo, Brazil,
7x50
Binoculars);
12.90,
5.4,
3'
(A. Ferrao,
7x50
Binoculars);
12.90,
6.1,
10.7'
(W. Souza,
0.05-m
Refractor + CCD);
12.89,
5.8,
4'
(A. Amorim,
20x50
Binoculars;
0.5° tail in p.a. 130 deg);
12.45,
6.5,
7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
44.7'
tail in p.a. 127 deg);
12.39,
6.1,
4'
(M. Mattiazzo,
Strathalbyn, South Australia,
15x70
Binoculars;
1.5° tail in p.a. 127 deg);
12.13,
5.9,
5'
(M. Olason,
Tucson, Arizona,
0.05-m
Refractor + CCD);
11.99,
6.7,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
6.7° tail in p.a. 125 deg);
11.99,
6.2,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
4.5° tail in p.a. 124 deg);
11.99,
7.0,
9.2'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
4.3° tail in p.a. 124 deg);
11.95,
5.8,
5'
(M. Goiato,
7x50
Binoculars;
0.5° tail in p.a. 125 deg);
11.90,
5.5,
2.5'
(A. Ferrao,
0.114-m
Newtonian);
11.89,
5.7,
3'
(A. Amorim,
20x50
Binoculars);
11.47,
5.9,
4'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
11.45,
6.3,
7'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
41.4'
tail in p.a. 123 deg);
11.36,
6.0,
8'
(N. Paul,
iTelescope Observatory, Siding Spring (MPC Q62),
0.51-m
Schmidt-Cassegrain + CCD);
11.13,
6.1,
5'
(M. Olason,
Tucson, Arizona,
0.03-m
Refractor + CCD);
10.99,
6.0,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
7° tail in p.a. 124 deg);
10.99,
7.0,
8.7'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
4.8° tail in p.a. 123 deg);
10.99,
6.6,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
7.9° tail in p.a. 124 deg);
10.97,
5.8,
6.3'
(J. Koukal,
La Silla,
0.01-m
Camera lens + CCD;
1.1° tail in p.a. 118 deg);
10.94,
5.6,
2'
(A. Amorim,
20x50
Binoculars);
10.48,
5.7,
4.5'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
10.45,
6.2,
7.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
38.6'
tail in p.a. 126 deg);
10.35,
5.9,
7.9'
(N. Paul,
iTelescope Observatory, Siding Spring (MPC Q62),
0.51-m
Schmidt-Cassegrain + CCD);
10.13,
5.9,
5'
(M. Olason,
Tucson, Arizona,
0.03-m
Refractor + CCD);
09.99,
5.9,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
6.6° tail in p.a. 125 deg);
09.99,
6.4,
12.4'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
6.8° tail in p.a. 125 deg);
09.99,
6.8,
9.2'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
5.4° tail in p.a. 125 deg);
09.92,
5.3,
5'
(W. Souza,
10x50
Binoculars;
1° tail);
09.45,
5.9,
7.5'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
40'
tail in p.a. 125 deg);
09.36,
5.7,
9'
(C. Wyatt,
10x50
Binoculars;
4.3° tail in p.a. 123 deg);
09.13,
5.7,
5'
(M. Olason,
Tucson, Arizona,
0.03-m
Refractor + CCD);
08.99,
6.6,
10.1'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
7° tail in p.a. 126 deg);
08.99,
5.7,
12.4'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
8.4° tail in p.a. 126 deg);
08.99,
6.2,
12.4'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
8.4° tail in p.a. 126 deg);
08.47,
5.2,
5'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
08.45,
5.8,
8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
40.1'
tail in p.a. 125 deg);
08.38,
5.4,
7'
(C. Wyatt,
10x50
Binoculars;
6.2° tail in p.a. 123 deg);
08.35,
5.5,
5'
(D. Edwards,
Peak Crossing, Queensland, Australia,
15x50
Binoculars;
90'
tail in p.a. 125 deg);
08.13,
5.6,
5'
(M. Olason,
Arizona,
0.03-m
Refractor + CCD);
07.99,
6.0,
12.9'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
9.5° tail in p.a. 128 deg);
07.99,
5.6,
12.9'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
8.1° tail in p.a. 128 deg);
07.99,
6.4,
10.6'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
6.3° tail in p.a. 127 deg);
07.92,
5.0,
6'
(W. Souza,
10x50
Binoculars);
07.91,
5.2,
6'
(W. Souza,
20x80
Binoculars);
07.89,
5.3,
4'
(A. Amorim,
20x50
Binoculars);
07.89,
5.1,
7.8'
(W. Souza,
0.05-m
Refractor + CCD);
07.47,
5.2,
5'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
07.45,
5.6,
8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
41.7'
tail in p.a. 127 deg);
07.36,
5.3,
5.5'
(C. Wyatt,
10x50
Binoculars;
4.2° tail in p.a. 123 deg);
07.36,
5.3,
5'
(D. Edwards,
Chapel Hill, Queensland, Australia,
15x50
Binoculars;
30'
tail in p.a. 124 deg);
07.13,
5.6,
5'
(M. Olason,
Arizona,
0.05-m
Refractor + CCD);
06.99,
5.7,
13.8'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
11.4° tail in p.a. 125 deg);
06.99,
5.3,
13.8'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
9.6° tail in p.a. 125 deg);
06.99,
6.1,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
6.3° tail in p.a. 124 deg);
06.97,
5.4,
8.2'
(J. Koukal,
La Silla,
0.01-m
Camera lens + CCD;
1.5° tail in p.a. 120 deg);
06.92,
5.0,
6'
(W. Souza,
20x80
Binoculars);
06.89,
6.2,
8.7'
(W. Souza,
0.05-m
Refractor + CCD);
06.89,
5.1,
2'
(A. Amorim,
20x50
Binoculars);
06.47,
5.1,
5'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
06.45,
5.5,
8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
40.4'
tail in p.a. 124 deg);
05.89,
5.0,
4'
(A. Amorim,
20x50
Binoculars;
0.5° tail in p.a. 130 deg);
05.45,
5.3,
8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
37.3'
tail in p.a. 123 deg);
05.39,
4.9,
5'
(M. Mattiazzo,
Strathalbyn, South Australia,
8x40
Binoculars;
3.5° tail in p.a. 124 deg);
04.99,
5.5,
15.2'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
10.8° tail in p.a. 119 deg);
04.99,
5.0,
12.4'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
7° tail in p.a. 120 deg);
04.99,
5.9,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
5.2° tail in p.a. 120 deg);
04.95,
4.5,
5'
(M. Goiato,
7x50
Binoculars;
1° tail in p.a. 125 deg);
04.90,
4.9,
5'
(W. Souza,
20x80
Binoculars);
04.45,
5.2,
9'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
39.5'
tail in p.a. 124 deg);
04.39,
4.8,
5'
(M. Mattiazzo,
Strathalbyn, South Australia,
8x40
Binoculars;
3.5° tail in p.a. 125 deg);
04.35,
5.3,
6'
(D. Edwards,
Gap Creek Reserve, Mount Coot-tha, Queensland, Australia,
15x50
Binoculars;
70'
tail in p.a. 123 deg);
03.98,
5.6,
13.8'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
12.6° tail in p.a. 124 deg);
03.98,
5.7,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
3.6° tail in p.a. 125 deg);
03.98,
4.9,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
6.9° tail in p.a. 125 deg);
03.92,
4.4,
6'
(M. Goiato,
7x50
Binoculars;
1° tail in p.a. 125 deg);
03.92,
4.6,
4'
(M. Goiato,
20x100
Binoculars;
1.2° tail in p.a. 125 deg);
03.90,
5.2,
1'
(A. Amorim,
7x50
Binoculars);
03.90,
5.0,
4'
(A. Amorim,
20x50
Binoculars;
0.5° tail in p.a. 130 deg);
03.81,
4.5,
--
(W. Prini,
Rio Verde - Goiás - Brasil,
0.5-m
Refractor);
03.46,
4.8,
6'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
03.45,
5.1,
9'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
37.1'
tail in p.a. 122 deg);
03.39,
4.7,
5'
(M. Mattiazzo,
Strthalbyn, South Australia,
8x40
Binoculars;
2° tail in p.a. 125 deg);
02.45,
4.9,
9'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
36.9'
tail in p.a. 123 deg);
01.97,
5.1,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
4.4° tail in p.a. 122 deg);
01.97,
4.3,
13.8'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
4° tail in p.a. 123 deg);
01.97,
5.0,
13.8'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
5.1° tail in p.a. 123 deg);
01.92,
4.3,
6'
(M. Goiato,
7x50
Binoculars;
2° tail in p.a. 130 deg);
01.92,
4.4,
5'
(M. Goiato,
20x100
Binoculars;
2.5° tail in p.a. 130 deg);
01.91,
4.5,
5'
(W. Souza,
10x42.0
Binoculars;
0.5° tail);
01.89,
4.0,
--
(A. Amorim,
8x21.0
Binoculars);
01.89,
4.0,
3'
(A. Amorim,
20x50
Binoculars);
01.44,
4.7,
8'
(A. Pearce,
Nedlands, Perth, W. Australia,
0.05-m
Refractor + CCD;
36.9'
tail in p.a. 125 deg);
apr
30.97,
4.2,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
3.7° tail in p.a. 124 deg);
30.97,
4.9,
10.1'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
3.6° tail in p.a. 125 deg);
30.97,
4.9,
11.5'
(M. Mašek,
Paranal,
0.067-m
Camera lens + CCD;
4.2° tail in p.a. 125 deg);
30.89,
4.0,
3'
(A. Amorim,
20x50
Binoculars);
30.39,
4.0,
5'
(M. Mattiazzo,
Strathalbyn, South Australia,
15x70
Binoculars;
2° tail in p.a. 126 deg);
30.34,
4.0,
5.9'
(C. Wyatt,
10x50
Binoculars;
1.2° tail in p.a. 127 deg);
C/2025 V2 (Rankin)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
17.92,
18.2,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
09.97,
17.4,
0.6'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
09.85,
18.4,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.86,
18.7,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
apr
28.90,
18.0,
0.4'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
C/2025 Y1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
27.93,
16.8,
0.27'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
26.92,
16.8,
0.23'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
24.99,
16.6,
0.31'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
22.97,
16.8,
0.23'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
22.57,
16.9,
0.4'
(T. Yusa,
0.05-m
Refractor + CCD);
21.88,
16.0,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.87,
16.6,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.87,
17.0,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
19.94,
16.7,
0.28'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
19.57,
16.6,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
19.45,
16.4,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
18.57,
16.7,
0.4'
(T. Yusa,
0.05-m
Refractor + CCD);
18.47,
16.4,
0.35'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
17.58,
16.8,
0.5'
(T. Yusa,
0.05-m
Refractor + CCD);
16.48,
16.7,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
13.60,
16.5,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
13.57,
17.0,
0.4'
(T. Yusa,
0.05-m
Refractor + CCD);
12.96,
16.8,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
12.57,
17.1,
0.4'
(T. Yusa,
0.05-m
Refractor + CCD);
10.52,
16.8,
0.3'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
09.88,
16.8,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.2'
tail in p.a. 138 deg);
09.88,
17.2,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.2'
tail in p.a. 139 deg);
09.88,
16.1,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
08.97,
16.8,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
08.92,
16.9,
0.4'
(M. Meyer,
0.05-m
Refractor + CCD);
08.90,
16.8,
0.23'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
07.57,
16.7,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
06.50,
16.6,
0.3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
05.97,
16.7,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
05.88,
16.3,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.88,
16.8,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.88,
17.1,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.49,
16.7,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
04.46,
16.7,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
7.6" tail in p.a. 142 deg);
02.92,
16.6,
0.34'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
02.84,
16.9,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.84,
16.4,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.83,
17.4,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.08,
16.1,
0.31'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
02.04,
15.9,
0.49'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
02.01,
16.6,
0.25'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
01.90,
16.6,
0.34'
(M. Šrejber,
Hvezdarna a planetarium Hradec Kralove (MPC 048),
0.25-m
Newtonian + CCD);
apr
30.98,
16.7,
0.37'
(P. Dekelver,
0.3-m
Newtonian + CCD);
30.91,
16.6,
0.23'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
29.99,
17.1,
0.22'
(P. Dekelver,
0.3-m
Newtonian + CCD);
29.90,
16.5,
0.27'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
28.95,
17.2,
0.22'
(P. Dekelver,
0.3-m
Newtonian + CCD);
28.89,
16.4,
0.23'
(H. Meyerdierks,
Osterholz-Scharmbeck,
0.2-m
Schmidt-Cassegrain + CCD);
C/2026 A2 (Bok)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
17.68,
17.7,
0.4'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
0.3'
tail in p.a. 230 deg);
C/2026 B3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
19.97,
19.2,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
13.03,
19.2,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
09.87,
19.5,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
05.95,
19.1,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
C/2026 C1 (Tsuchinshan)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
21.89,
17.7,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.88,
18.5,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
21.88,
18.6,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
19.93,
18.5,
0.23'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
18.88,
17.5,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.88,
17.9,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
18.87,
18.7,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
15.97,
18.2,
0.6'
(F. Carrasco Lopez,
Observatorio Villuercas-Navezuelas (MPC R49),
0.25-m
Newtonian + CCD);
14.54,
18.5,
0.2'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
0.2'
tail in p.a. 200 deg);
11.94,
18.6,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);
11.90,
18.2,
0.37'
(J. Chambó Bris,
OAV, Valencia, Spain (MPC XXX),
0.2-m
Newtonian + CCD);
09.90,
17.7,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
09.89,
18.2,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
09.89,
18.8,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.85,
18.8,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.85,
17.6,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
02.85,
17.4,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
A/2025 Y1
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
16.91,
16.6,
0.4'
(P. Carson,
PGC, Fregenal de la Sierra,
0.315-m
Cassegrain reflector + CCD);
A/2026 E1
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
may
14.96,
19.7,
0.17'
(K. Hills,
Tacande Observatory, La Palma (MPC J22),
0.5-m
Newtonian + CCD);