Tags: Planet.

6135 Billowen (1990 RD9) is a main-belt asteroid discovered on September 14 1990 by Henry E. Holt at Palomar.

apoapsis (km)
4.0867e+11
orbital period (μ)
1.19542e+08
periapsis (km)
3.18373e+11
absolute magnitude
12.7
discovery date
1990-09-14
discoverer
Henry E. Holt
epoch
May 14 2008
former name
1990 RD9

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