3936 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 (astronomer) |
| 2321 T-3 · 1972 GY 1973 TC · 1976 JG1 1980 MB · 1981 WA2 1984 MT · 1985 WS |
|
| main-belt · Vestian | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 44.74 yr (16,343 days) |
| Aphelion | 2.7418 AU |
| Perihelion | 2.1129 AU |
| 2.4274 AU | |
| Eccentricity | 0.1296 |
| 3.78 yr (1,381 days) | |
| 230.36° | |
| 0° 15m 38.16s / day | |
| Inclination | 5.6454° |
| 240.75° | |
| 38.597° | |
| Physical characteristics | |
| Dimensions |
4.593±0.073 km 4.939±0.048 km 7.46 km (calculated) |
| 6.6322±0.0002 h | |
| 0.20 (assumed) 0.4607±0.0712 0.509±0.096 |
|
| S | |
| 13.0 · 13.36±0.24 | |
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. It 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 astronomer Eric W. Elst.
Elst is a stony S-type asteroid and member of the Vesta family. It orbits the Sun at a distance of 2.1–2.7 AU once every 3 years and 9 months (1,381 days). Its orbit has an eccentricity of 0.13 and an inclination of 6° with respect to the ecliptic. It was first identified as 1972 GY and 1973 TC at Crimea–Nauchnij, extending the body's observation arc by 4 years prior to its official discovery observation at Palomar.
In August 2007, a rotational lightcurve of Elst was obtained from photometric observations by Czech astronomer Petr Pravec at Ondřejov Observatory. Lightcurve analysis gave a well-defined rotation period of 6.6322 hours with a brightness amplitude of 0.13 magnitude (U=3).
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