 2865 Laurel orbit, and his position on 06 Jun 2011 (NASA Orbit Viewer applet) | |
| Discovery[1] | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 31 July 1935 |
| Designations | |
| (2865) Laurel | |
Named after | Stan Laurel(film comedian)[2] |
| 1935 OK · 1939 PA 1947 NF · 1951 ML 1972 QH | |
| main-belt · (middle)[3] Maria | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 81.62 yr (29,810 days) |
| Aphelion | 2.7406AU |
| Perihelion | 2.3812 AU |
| 2.5609 AU | |
| Eccentricity | 0.0702 |
| 4.10yr (1,497 days) | |
| 71.330° | |
| 0° 14m 25.8s / day | |
| Inclination | 14.294° |
| 321.79° | |
| 293.35° | |
| Physical characteristics | |
| Dimensions | 14.73±1.2 km(IRAS:3)[4] 14.79 km(derived)[3] 18.83±0.73 km[5] 24.99±0.37 km[6] |
| 21.5±0.3h[7] | |
| 0.094±0.014[6] 0.142±0.013[5] 0.2242±0.043(IRAS:3)[4] 0.2438(derived)[3] | |
| S[3][8] | |
| 11.20[6] · 11.24±0.30[8] · 11.3[1][3] · 11.40[4][5] | |
2865 Laurel, provisional designation1935 OK, is a stony Marianasteroid from the middle region of theasteroid belt, approximately 15 kilometers in diameter. It was discovered by English-born South African astronomerCyril Jackson atJohannesburg Observatory on 31 July 1935.[9] The asteroid was named after movie comedianStan Laurel.[2]
Laurel orbits the Sun in thecentral main-belt at a distance of 2.4–2.7 AU once every 4 years and 1 month (1,497 days). Its orbit has aneccentricity of 0.07 and aninclination of 14° with respect to theecliptic.[1] Noprecoveries were taken and the asteroid'sobservation arc begins with its discovery observation in 1935.[9]
Laurel has been characterized as a commonS-type asteroid byPanSTARRS' photometric survey.[8]
A rotationallightcurve for this asteroid was obtained from photometric observations by French amateur astronomerPierre Antonini in September 2005. It gave a longer than averagerotation period of21.5±0.3 hours with a brightness variation of 0.15 inmagnitude (U=2).[7]
According to the space-based surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite, and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission, the asteroid measures between 14.7 and 25.0 kilometers in diameter and its surface has analbedo between 0.09 and 0.22.[4][5][6] TheCollaborative Asteroid Lightcurve Link agrees with IRAS and derives an albedo of 0.24 and a diameter 14.8 kilometers.[3]
Thisminor planet was named after English-born slapstick film comedianStan Laurel (1890–1965). Together with Oliver Hardy (1892–1957), who was honored with the main-belt asteroid2866 Hardy, they formed the first great comedy duo inClassical Hollywood cinema.[2] The official naming citation was published by theMinor Planet Center on 1 September 1993 (M.P.C. 22496),[10] based on a suggestion byGareth V. Williams and others.[2]
