831 Stateira is an asteroid belonging to the Baptistina family in the Main Belt named after Stateira, wife of Artaxerexes II.
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 20 September 1916 |
| Designations | |
MPC designation | (831) Stateira |
| Pronunciation | /stæˈtaɪərə/[1] |
Alternative designations | 1916 AA; 1926 VA; 1949 SQ; 1949 UO1; 1971 KZ; 1972 RV1 |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 89.43 yr (32664 d) |
| Aphelion | 2.5345 AU (379.16 Gm) |
| Perihelion | 1.8906 AU (282.83 Gm) |
Semi-major axis | 2.2125 AU (330.99 Gm) |
| Eccentricity | 0.14550 |
Orbital period (sidereal) | 3.29 yr (1202.1 d) |
Mean anomaly | 91.2840° |
Mean motion | 0° 17m 58.128s / day |
| Inclination | 4.8364° |
Longitude of ascending node | 178.081° |
Argument of perihelion | 224.935° |
| Earth MOID | 0.900859 AU (134.7666 Gm) |
| Jupiter MOID | 2.85692 AU (427.389 Gm) |
| TJupiter | 3.637 |
| Physical characteristics | |
Synodic rotation period | 4 h (0.17 d) |
Absolute magnitude (H) | 13.1 |
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