Cometcountdown

143P/Kowal-Mrkos
Discovered by
Charles T. Kowal
Antonín Mrkos
Discovery date
23 April 1984
Alternative designations
1984 JD; 1984 X; 2000 ET90
Semi-major axis
4.306 AU
Eccentricity
0.4106
Orbital period
8.935 a
Inclination
4.6896°
Epoch
6 March 2006
Aphelion
6.074 AU
Perihelion
2.538 AU
Last Perihelion(s)
12 June 2009
Next Perihelion
7 May 2018
Last modified
23/12/2016 - 11:00