2675 Tolkien
| Discovery [1] | |
|---|---|
| Discovered by | M. Watt |
| Discovery site | Anderson Mesa Station |
| Discovery date | 14 April 1982 |
| Designations | |
| MPC designation | 2675 Tolkien |
|
Named after
|
J.R.R. Tolkien (writer)[2] |
| 1982 GB · 1934 VO 1937 RH · 1939 FR 1949 FO · 1950 QA1 1952 DX · 1969 JE 1969 KB · 1970 RB 1973 QX · 1975 BV |
|
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 77.97 yr (28,478 days) |
| Aphelion | 2.4385 AU |
| Perihelion | 1.9864 AU |
| 2.2125 AU | |
| Eccentricity | 0.1021 |
| 3.29 yr (1,202 days) | |
| 216.95° | |
| Inclination | 2.7536° |
| 5.9094° | |
| 1.9992° | |
| Physical characteristics | |
| Dimensions | 9.65±0.23 km[4] 10.96±0.19 km[5] 9.85 km (caculated)[3] |
| 1060 h[6] | |
| 0.205±0.011[4] 0.213±0.021[5] 0.24 (assumed)[3] |
|
| SMASS = S S [3] |
|
| 12.2[1] | |
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2675 Tolkien, provisional designation 1982 GB, is a stony asteroid and extremely slow rotator from the inner regions of the asteroid belt, about 10 kilometers in diameter. It was discovered on 14 April 1982, by British astronomer Martin Watt at Lowell's Anderson Mesa Station in Flagstaff, Arizona.[7]
The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.0–2.4 AU once every 3 years and 3 months (1,202 days). Its orbit shows an eccentricity of 0.10 and is tilted by 3 degrees to the plane of the ecliptic. According to the surveys carried out by the Japanese Akari satellite and the Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the body has an albedo of 0.21, with the Collaborative Asteroid Lightcurve Link assuming a slightly higher value of 0.24.[3][4][5]
In 2011, photometric light-curve measurements of 2675 Tolkien were taken over the course of twenty-three nights and revealed that the body is potentially an extremely slow rotator, that has an outstandingly long rotation period of 1058±30 hours, or 44 days, with a brightness amplitude of 0.1 in magnitude.[6] An asteroid typically takes only a few hours to rotate once around its axis. In addition, the body is suspected to be in a in non-principal axis rotation ("tumbling").[3] Observations were taken from the Via Capote Observatory (VCO) in California, the Czech Ondřejov Observatory, and the private Shed of Science Observatory (also known as S.O.S. Observatory), near the U.S. city of Minneapolis. (Also see § External links).
The minor planet is named in honour of J.R.R. Tolkien (1892–1973), an English writer, philologist, and Merton professor of English language at the University of Oxford. He is best known as the author of the fantasy novels The Hobbit and The Lord of the Rings. Tolkien also had a lifelong interest in astronomy.[2]
References
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<references />, or <references group="..." />External links
- Shed of Science – S.O.S. observatory website, (H39)
- Asteroid Lightcurve Database (LCDB), query form (info)
- 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
- 2675 Tolkien at the JPL Small-Body Database
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