3936 Elst
3936 Elst, provisional designation 2321 T-3, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. The asteroid was discovered on 16 October 1977, by Dutch astronomer couple Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Dutch–American astronomer Tom Gehrels at Palomar Observatory in California, United States. It was named after Belgian astronomer Eric W. Elst.
| Discovery | |
|---|---|
| Discovered by | C. J. van Houten I. van Houten-G. T. Gehrels |
| Discovery site | Palomar Obs. |
| Discovery date | 16 October 1977 |
| Designations | |
MPC designation | (3936) Elst |
Named after | Eric W. Elst (Belgian astronomer) |
Alternative designations | 2321 T-3 · 1972 GY 1973 TC · 1976 JG1 1980 MB · 1981 WA2 1984 MT · 1985 WS |
Minor planet category | main-belt · Vestian |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 45.05 yr (16,455 days) |
| Aphelion | 2.7424 AU |
| Perihelion | 2.1139 AU |
Semi-major axis | 2.4281 AU |
| Eccentricity | 0.1294 |
Orbital period (sidereal) | 3.78 yr (1,382 days) |
Mean anomaly | 282.61° |
Mean motion | 0° 15m 37.8s / day |
| Inclination | 5.6458° |
Longitude of ascending node | 240.74° |
| 38.474° | |
| Physical characteristics | |
| Dimensions | 4.593±0.073 km 4.939±0.048 km 7.46 km (calculated) |
Synodic rotation period | 6.6322±0.0002 h |
| 0.20 (assumed) 0.4607±0.0712 0.509±0.096 | |
| S | |
| 13.0 · 13.36±0.24 | |
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