Comet 103P/Hartley

Lightcurve of 103P/Hartley
The orbital elements of 103P/Hartley (source:
q (perihelion distance) 1.064087
a (semi-major axes) 3.474944
e (eccentricity) 0.693783
ω (argument of perihelion) 181.3002
Ω (Longitude of ascending node) 219.7496
i (inclination) 13.6107
P (Orbital period in years) 6.4780
T (time of perihelion passage) 2023-10-12 12:14:06
Epoch 2023 Dec 09
Reference MPEC 2023-X98
Magnitude parameteres (source: COBS last 30 days)
Absolute magnitude 11.3
Slope parameter 1.1
Ephemeris of 103P/Hartley for location Crni Vrh Observatory
Date J(2000) Comet Sky Motion Object Moon
UTC RA Dec Delta r Elong Phase Mag "/min PA Azi Alt Phase Dist.


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