3288 Seleucus
| Discovery | |
|---|---|
| Discovered by | H.-E. Schuster |
| Discovery site | La Silla Obs. |
| Discovery date | 28 February 1982 |
| Designations | |
| MPC designation | 3288 Seleucus |
|
Named after
|
Seleucus I Nicator (Seleucid Empire) |
| 1982 DV | |
| Amor · NEO | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 33.97 yr (12,406 days) |
| Aphelion | 2.9605 AU |
| Perihelion | 1.1052 AU |
| 2.0329 AU | |
| Eccentricity | 0.4563 |
| 2.90 yr (1,059 days) | |
| 9.1669° | |
| 0° 20m 24s / day | |
| Inclination | 5.9306° |
| 218.66° | |
| 349.29° | |
| Earth MOID | 0.1016 AU · 39.5 LD |
| Physical characteristics | |
| Dimensions |
2.2 km 2.49±0.07 km 2.8 km (Gehrels) 2.832±1.100 km |
|
16 h (dated) 75±5 h 75 h |
|
|
0.139±0.127 0.22 (Gehrels) 0.23 0.24±0.04 |
|
|
B–V = 0.910 U–B = 0.500 S (Tholen) · K (SMASS) · S |
|
| 15.2 · 15.3 · 15.5 · 15.50±0.3 · 15.6±0.3 | |
3288 Seleucus, provisional designation 1982 DV, is a rare-type stony asteroid, classified as near-Earth object of the Amor group of asteroids, approximately 2.5 kilometers in diameter. It was discovered on 28 February 1982, by German astronomer Hans-Emil Schuster at ESO's La Silla Observatory site in northern Chile.
Seleucus orbits the Sun at a distance of 1.1–3.0 AU once every 2 years and 11 months (1,059 days). Its orbit has an eccentricity of 0.46 and an inclination of 6° with respect to the ecliptic.Seleucus has a Earth minimum orbital intersection distance of 0.1016 AU (15,200,000 km), which corresponds to 39.5 lunar distances. As no precoveries were taken, and no prior identifications were made, the body's observation arc begins with its official discovery observation at La Silla.
On the Tholen and SMASS taxonomic scheme, Seleucus is classified as a featureless S-type and rare K-type asteroid, respectively. It has a relatively long rotation period of 75 hours with a brightness variation of 1.0 magnitude, indicative of a non-spheroidal shape (U=3/3).
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