2865 Laurel
2865 Laurel, provisional designation 1935 OK, is a stony Marian asteroid from the middle region of the asteroid belt, approximately 15 kilometers in diameter. It was discovered by English-born South African astronomer Cyril Jackson at Johannesburg Observatory on 31 July 1935. The asteroid was named after movie comedian Stan Laurel.
2865 Laurel orbit, and his position on 06 Jun 2011 (NASA Orbit Viewer applet) | |
| Discovery | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 31 July 1935 |
| Designations | |
MPC designation | (2865) Laurel |
Named after | Stan Laurel (film comedian) |
Alternative designations | 1935 OK · 1939 PA 1947 NF · 1951 ML 1972 QH |
Minor planet category | main-belt · (middle) Maria |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 81.62 yr (29,810 days) |
| Aphelion | 2.7406 AU |
| Perihelion | 2.3812 AU |
Semi-major axis | 2.5609 AU |
| Eccentricity | 0.0702 |
Orbital period (sidereal) | 4.10 yr (1,497 days) |
Mean anomaly | 71.330° |
Mean motion | 0° 14m 25.8s / day |
| Inclination | 14.294° |
Longitude of ascending node | 321.79° |
| 293.35° | |
| Physical characteristics | |
| Dimensions | 14.73±1.2 km (IRAS:3) 14.79 km (derived) 18.83±0.73 km 24.99±0.37 km |
Synodic rotation period | 21.5±0.3 h |
| 0.094±0.014 0.142±0.013 0.2242±0.043 (IRAS:3) 0.2438 (derived) | |
| S | |
| 11.20 · 11.24±0.30 · 11.3 · 11.40 | |
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