Periodic comet 67P/Churyumov-Gerasimenko
Image of periodic comet 67P/Churyumov-Gerasimenko, obtained on 2021 Sep. 14 (3h09-3h17UT) with 60-cm, f/3.3 Deltagraph telescope and CCD. Image is a composition 12x30 second unfiltered exposures.
Copyright © 2021 by H. Mikuz, Črni Vrh Observatory.
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Light-curve of C/2019 L3 (ATLAS) (Oct 18, 2021).
| Type | Comet name | Obs date | Mag | App | T | Pow | Dia | DC | Tail | PA | Obs |
|---|---|---|---|---|---|---|---|---|---|---|---|
| V | 4P | 2021 10 16.15 | 12.0 | 35.0 | L | 61 | 2.4 | 4 | CER01 | ||
| V | C/2019 L3 | 2021 10 16.13 | 10.9 | 35.0 | L | 61 | 2.8 | 5/ | CER01 | ||
| V | 29P | 2021 10 16.11 | 10.9 | 35.0 | L | 61 | 4 | 0 | CER01 | ||
| V | 67P | 2021 10 16.09 | 10.3 | 35.0 | L | 61 | 2.1 | 6 | CER01 | ||
| C | C/2019 L3 | 2021 10 16.02 | 10.3 | 10.0 | R | a962 | 10 | 0.16 | 307 | FRIaa | |
| C | 67P | 2021 10 15.99 | 9.6 | 10.0 | R | B526 | 15 | 0.44 | 269 | FRIaa | |
| C | 29P | 2021 10 15.95 | 11.0 | 10.0 | R | B406 | 5.4 | FRIaa | |||
| C | 132P | 2021 10 15.91 | 14.1 | 10.0 | R | B406 | 1.7 | 0.8m | 255 | FRIaa | |
| C | C/2019 T3 | 2021 10 15.87 | 16.7 | 10.0 | R | B406 | 1 | 0.3m | 99 | FRIaa | |
| C | C/2017 K2 | 2021 10 15.81 | 12.8 | 10.0 | R | B856 | 3.6 | 0.05 | 12 | FRIaa | |
| C | 29P | 2021 10 15.46 | 10.6 | 43.0 | Y | A159 | 2.82 | JAMaa | |||
| V | 67P | 2021 10 15.37 | 10.6 | 31.7 | L | 66 | & 2 | 7 | WIE01 | ||
| V | C/2019 L3 | 2021 10 15.37 | 10.5 | 31.7 | L | 66 | 1.5 | 6 | WIE01 | ||
| V | 29P | 2021 10 15.36 | 10.6 | 31.7 | L | 66 | > 2 | 3 | WIE01 | ||
| V | 4P | 2021 10 15.36 | 12.0 | 31.7 | L | 144 | & 0.7 | 5 | WIE01 | ||
| C | 29P | 2021 10 15.12 | 10.1 | 35.0 | T | a240 | 2.44 | BUCaa | |||
| C | C/2021 A1 | 2021 10 15.11 | 13.3 | 35.0 | T | a480 | 2 | BUCaa | |||
| C | 4P | 2021 10 15.05 | 11.5 | 35.0 | T | a720 | 3 | BUCaa | |||
| C | 67P | 2021 10 15.04 | 10.3 | 35.0 | T | a600 | 5.2 | BUCaa | |||
| V | C/2019 L3 | 2021 10 14.45 | 10.4 | 31.7 | L | 66 | > 2 | 6 | WIE01 |
| Comet name | Mag | Trend | Observable | Visiblity 45N |
Visiblity 45S |
|---|---|---|---|---|---|
| 342P/SOHO | -1.0 | steady | 81N to 90S | Poor elongation | Poor elongation |
| 67P/Churyumov-Gerasimenko | 10.0 | bright | 90N to 65S | Best morning | Early evening |
| C/2019 L3 (ATLAS) | 10.5 | bright | 90N to 48S | Best morning | Early evening |
| 29P/Schwassmann-Wachmann | 11.0 | steady | 90N to 58S | Best morning | Best morning |
| 4P/Faye | 11.5 | steady | 90N to 76S | Best morning | Best morning |
| 8P/Tuttle | 11.5 | fade | 56N to 90S | Early evening | Early evening |
| 19P/Borrelly | 12.0 | bright | 34N to 90S | Never up | Never up |
| 73P-V/Schwassmann-Wachmann | 12.0 | bright | 71N to 90S | Early evening | Evening |
| C/2021 A1 (Leonard) | 12.5 | bright | 90N to 54S | Early evening | Early evening |
| C/2017 K2 (PANSTARRS) | 12.5 | bright | 90N to 67S | Evening | Early evening |
| C/2020 T2 (Palomar) | 13.5 | fade | 62N to 90S | Early evening | Evening |
| P/2013 PA104 (PANSTARRS) | 13.5 | fade | 84N to 90S | Best evening | Best evening |
| 132P/Helin-Roman-Alu | 14.0 | steady | 87N to 90S | Best evening | Best morning |
| C/2019 T4 (ATLAS) | 14.0 | steady | 65N to 90S | Early evening | Early evening |
| C/2021 O1 (Nishimura) | 14.0 | fade | 86N to 90S | Poor elongation | Poor elongation |
| 83D/Russell | 14.0 | bright | 76N to 90S | Early evening | Early evening |
| 6P/dArrest | 14.0 | fade | 59N to 90S | Evening | Best evening |
The observable region is an approximate indication of the latitude at which the comet may be seen. The period when visible is calculated for latitude 45°N and 45°S.
CBET 5029 & MPEC 2021-R98 , issued on 2021, September 06, announce the discovery of a new comet (magnitude ~17) on CCD images taken on August 29.6 UT with a 0.5-m f/2 Schmidt reflector at Haleakala, Hawaii, in the course of the "Asteroid Terrestrial-Impact Last Alert System" (ATLAS) search program. The new comet has been designated P/2021 Q5 (ATLAS).
CBET 5028 & MPEC 2021-Q102, issued on 2021, August 31 & September 02, announce the discovery of a new comet (magnitude ~20) on CCD images taken on August 26.2 UT with the Mt. Lemmon Survey (G96) 1.5-m reflector. The new comet has been designated C/2021 Q4 (Fuls).
With the MPEC 2021-Q42 issued on 21 August 2021, the discovery of a new Magn comet is announced. 19.4 identified by the ATLAS-HKO program (T05).
Astronomers calculate that the Oort Cloud may be home to more visiting objects than objects that belong to our solar system.
CBET xxxx & MPEC 2021-P05, issued on 2021, August 01, announce the discovery of a new comet (magnitude ~20) on CCD images taken on July 26.5 UT with the Pan-STARRS1 1.8-m Ritchey-Chretien reflector at Haleakala. The new comet has been designated C/2021 O3 (PANSTARRS).
