Tags: Planet.

9147 Kourakuen (1977 DD1) is a main-belt asteroid discovered on February 18 1977 by H. Kosai and K. Hurukawa at the Kiso Station of the Tokyo Astronomical Observatory.

apoapsis (km)
3.62337e+11
orbital period (μ)
1.02364e+08
periapsis (km)
2.93273e+11
absolute magnitude
13.7
discovery date
1977-02-18
discoverer
Hiroki Kosai, Kiichirō Furukawa
epoch
May 14 2008
former name
1977 DD1

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