390 Alma

Tags: Planet.

390 Alma is a typical medium-sized Eunomian asteroid. It was Guillaume Bigourdan’s only asteroid discovery. He discovered it on March 24 1894 in Paris.

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apoapsis (km)

4.48268e+11

average speed (km/s)

65556.0

density (μ3)

2700.0

orbital period (μ)

1.36371e+08

periapsis (km)

3.45512e+11

temperature (K)

165.0, 250.0

absolute magnitude

10.39

albedo

0.219

discovery date

1894-03-24

discoverer

Guillaume Bigourdan

epoch

30 January 2005 (JD 2453400.5)

escape velocity (kmh)

54.0

former name

1894 BC; 1930 QW;, 1950 BV; 1950 CH;, 1953 YB; 1963 DF

rotation period (s)

13478.4