Tags: Planet.

7818 Muirhead (1990 QO) is a Mars-crossing asteroid discovered on August 19 1990 by E. F. Helin at Palomar.

apoapsis (km)
4.72106e+11
orbital period (μ)
1.13019e+08
periapsis (km)
2.28242e+11
absolute magnitude
13.9
discovery date
1990-08-19
discoverer
Eleanor F. Helin
epoch
May 14 2008
former name
1990 QO

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