390 Alma
| Discovery A | |
|---|---|
| Discoverer | Guillaume Bigourdan |
| Discovery Date | March 24, 1894 |
| Alternate Designations | 1894 BC B |
| Category | Main belt (Eunomia) |
| Orbital Elements C Epoch 30 January, 2005 (JD 2453400.5) | |
| Eccentricity (e) | 0.129 |
| Semi-Major Axis (a) | 396.89 Gm (2.653 AU) |
| Perihelion (q) | 345.512 Gm (2.31 AU) |
| Aphelion (Q) | 448.268 Gm (2.996 AU) |
| Orbital Period (P) | 1578.364 d (4.32 a) |
| Mean Orbital Speed | 18.29 km/s |
| Inclination (i) | 12.144° |
| Longitude of the Ascending Node (Ω) | 305.342° |
| Argument of Perihelion (ω) | 190.074° |
| Mean Anomaly (M) | 258.381° |
| Physical Characteristics | |
| Dimensions | 24.0 km |
| Mass | unknown |
| Density | unknown |
| Surface Gravity | unknown |
| Escape Velocity | unknown |
| Rotation Period | unknown |
| Spectral Class | unknown |
| Absolute Magnitude | 10.39 |
| Albedo | unknown |
| Mean Surface Temperature | unknown |
390 Alma is a typical Main belt asteroid.
It was Guillaume Bigourdan's only asteroid discovery. He discovered it on March 24, 1894 in Paris.
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Categories: Asteroid stubs | Eunomia asteroids