251 Sophia

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251 Sophia
Discovery
Discovered by Johann Palisa
Discovery date 4 October 1885
Designations
A907 UA, 1950 RH1,
1953 FN1
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 130.20 yr (47556 d)
Aphelion 3.40444 AU (509.297 Gm)
Perihelion 2.79047 AU (417.448 Gm)
3.09745 AU (463.372 Gm)
Eccentricity 0.099110
5.45 yr (1991.2 d)
16.94 km/s
299.994°
0° 10m 50.876s / day
Inclination 10.5103°
156.156°
285.776°
Earth MOID 1.82811 AU (273.481 Gm)
Jupiter MOID 1.83362 AU (274.306 Gm)
Jupiter Tisserand parameter 3.190
Physical characteristics
Dimensions 28.42±4.5 km
Mass unknown
Mean density
unknown
Equatorial surface gravity
unknown
Equatorial escape velocity
unknown
20.216 h (0.8423 d)
0.2188±0.091
Temperature unknown
unknown
9.9

251 Sophia is a main belt asteroid.

It was discovered by Johann Palisa on October 4, 1885 in Vienna and was named after Sophia, wife of astronomer Hugo von Seeliger.

References[edit]

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