2865 Laurel
 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 | 2.7406 AU |
| Perihelion | 2.3812 AU |
| 2.5609 AU | |
| Eccentricity | 0.0702 |
| 4.10 yr (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±0.3 h[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 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.[9] The asteroid was named after movie comedian Stan Laurel.[2]
Orbit and classification
[edit | edit source]Laurel orbits the Sun in the central main-belt at a distance of 2.4–2.7 AU once every 4 years and 1 month (1,497 days). Its orbit has an eccentricity of 0.07 and an inclination of 14° with respect to the ecliptic.[1] No precoveries were taken and the asteroid's observation arc begins with its discovery observation in 1935.[9]
Physical characteristics
[edit | edit source]Laurel has been characterized as a common S-type asteroid by PanSTARRS' photometric survey.[8]
Rotation period
[edit | edit source]A rotational lightcurve for this asteroid was obtained from photometric observations by French amateur astronomer Pierre Antonini in September 2005. It gave a longer than average rotation period of 21.5±0.3 hours with a brightness variation of 0.15 in magnitude (U=2).[7]
Diameter and albedo
[edit | edit source]According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures between 14.7 and 25.0 kilometers in diameter and its surface has an albedo between 0.09 and 0.22.[4][5][6] The Collaborative Asteroid Lightcurve Link agrees with IRAS and derives an albedo of 0.24 and a diameter 14.8 kilometers.[3]
Naming
[edit | edit source]This minor planet was named after English-born slapstick film comedian Stan Laurel (1890–1965). Together with Oliver Hardy (1892–1957), who was honored with the main-belt asteroid 2866 Hardy, they formed the first great comedy duo in Classical Hollywood cinema.[2] The official naming citation was published by the Minor Planet Center on 1 September 1993 (M.P.C. 22496),[10] based on a suggestion by Gareth V. Williams and others.[2]
References
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- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). (online, AcuA catalog p. 153)
- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
[edit | edit source]- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 2865 Laurel at AstDyS-2, Asteroids—Dynamic Site
- 2865 Laurel at the JPL Small-Body DatabaseLua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
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