1390 Abastumani
1390 Abastumani (prov. designation: 1935 TA) is a very large and dark background asteroid from the outer region of the asteroid belt. It was discovered on 3 October 1935, by Russian astronomer Pelageya Shajn at the Simeiz Observatory on the Crimean peninsula. The primitive P-type asteroid has a rotation period of 17.1 hours and measures approximately 101 kilometers (63 miles) in diameter. It was named for the Georgian town of Abastumani.
Shape model of Abastumani from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | P. Shajn |
| Discovery site | Simeiz Obs. |
| Discovery date | 3 October 1935 |
| Designations | |
MPC designation | (1390) Abastumani |
Named after | Abastumani (Georgian town) |
Alternative designations | 1935 TA · 1926 GN 1929 UL · A907 GN A916 VA |
Minor planet category |
|
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.80 yr (31,705 days) |
| Aphelion | 3.5547 AU |
| Perihelion | 3.3166 AU |
Semi-major axis | 3.4356 AU |
| Eccentricity | 0.0347 |
Orbital period (sidereal) | 6.37 yr (2,326 days) |
Mean anomaly | 290.65° |
Mean motion | 0° 9m 17.28s / day |
| Inclination | 19.932° |
Longitude of ascending node | 28.919° |
| 332.76° | |
| Physical characteristics | |
Mean diameter | 95.849±2.283 km 98.30±2.03 km 101.58±2.3 km (IRAS:12) 107.827±6.977 km |
Synodic rotation period | 17.100±0.005 h |
| 0.0264±0.0121 0.0298±0.001 (IRAS:12) 0.033±0.002 | |
| 9.40 | |
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