Comet 12P/Pons-Brooks

Lightcurve of 12P/Pons-Brooks
The orbital elements of 12P/Pons-Brooks (source: MPC Ephemeris Service)
q (perihelion distance) 0.781088
a (semi-major axes) 17.226969
e (eccentricity) 0.954659
ω (argument of perihelion) 199.0060
Ω (Longitude of ascending node) 255.8564
i (inclination) 74.1898
P (Orbital period in years) 71.5041
T (time of perihelion passage) 2024-04-21 03:17:25
JD2460421.6379
Epoch 2025 May 21
Reference MPEC 2025-J08, COBS 1 year
Magnitude parameteres (source: COBS last year)
Absolute magnitude 4.8
Slope parameter 4.6
Ephemeris of 12P/Pons-Brooks for location Crni Vrh Observatory (latitude: 45.94583; longitude: 14.07111; elevation: 726.0)
Designation MPC Name Date
UTC		 RA Dec Delta r El Ph Mag MPC
Mag		 Motion
"/min		 Motion
PA		 Obj
azi		 Obj
alt		 Sun
alt		 Moon
phase		 Moon
dist		 Moon
alt

Footnotes:

The site uses Minor Planet Ephemeris Service to generate perturbed ephemerides for comets.
Comet magnitudes are calculated based on derived magnitude parameters from the latest available observations in the COBS database.

Terminology:

RA right ascension in hours
Dec declination in degrees
Delta distance between comet and Earth (AU)
r distance between comet and Sun (AU)
El elongation - the angle between the Sun and comet
Ph percent of surface illuminated
Mag magnitude - brightness estimate