Tags: Planet.

20 Massalia is a large and fairly bright main-belt asteroid. It is also the largest member of the Massalia family of asteroids. Its name is the Greek name for Marseille the city from which one of the two independent co-discovers Jean Chacornac first sighted it.

A112.M119.shape.png
apoapsis (km)
4.11911e+11
average speed (km/s)
68724.0
mass (kg)
5200.0, 5670.0
orbital period (μ)
1.17959e+08
periapsis (km)
3.08699e+11
temperature (K)
174.0, 265.0
absolute magnitude
6.5
albedo
0.21
apparent magnitude
8.3
discovery date
1852-09-19
discoverer
Annibale de Gasparis
epoch
October 22 2004 (JD 2453300.5)
escape velocity (kmh)
334.8
former name
none
rotation period (s)
29151.4

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