Tags: Planet.

6645 Arcetri (1991 AR1) is a main-belt asteroid discovered on January 11 1991 by E. F. Helin at Palomar.

apoapsis (km)
5.61727e+11
orbital period (μ)
1.75011e+08
periapsis (km)
3.75672e+11
absolute magnitude
12.5
discovery date
1991-01-11
discoverer
Eleanor F. Helin
epoch
May 14 2008
former name
1991 AR1

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