Cometcountdown

17P/Holmes - Comet Holmes
Discovery date
6 November, 1892
Semi-major axis
3.618414 AU
Eccentricity
0.432564
Orbital period
6.882994
Inclination
19.1126°
Epoch
27 October, 2007 (JD 2454400.5)
Aphelion
5.183610 AU
Perihelion
2.053218 AU
Last Perihelion(s)
27 March, 2014 - 4 May, 2007
Next Perihelion
19 February, 2021
Last modified
14/12/2016 - 05:50