2675 Tolkien
| Discovery | |
|---|---|
| 12.10[5] · 12.2[1][3] · 12.50[4] · 12.73±0.27[7] | |
2675 Tolkien, provisional designation 1982 GB, is a stony Florian
Martin Watt at Lowell's Anderson Mesa Station in Flagstaff, Arizona, and later named for J. R. R. Tolkien.[2][8]
Orbit and classification
Tolkien is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun in the inner main-belt at a distance of 2.0–2.4 astronomical units (300,000,000–360,000,000 km; 190,000,000–220,000,000 mi) once every 3 years and 3 months (1,202 days). Its orbit has an eccentricity of 0.10 and an inclination of 3° with respect to the ecliptic.[1]
Physical characteristics
In the
SMASS classification, Tolkien is a stony S-type asteroid.[1]
Rotation period
In February 2011, photometric observations of Tolkien were taken over the course of twenty-three nights. The obtained
U=2+).[6] In addition, the body is suspected to be in a non-principal axis rotation ("tumbling").[3]
Diameter and albedo
According to the surveys carried out by the Japanese
albedo of 0.205 and 0.213, respectively,[4][5] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of this orbital family – and calculates a diameter of 9.85 kilometres (6.12 mi) with an absolute magnitude of 12.2.[3]
Naming
This
M.P.C. 7474).[9]
References
- ^ a b c d e f "JPL Small-Body Database Browser: 2675 Tolkien (1982 GB)" (2017-02-24 last obs.). Jet Propulsion Laboratory. Retrieved 14 June 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d e f g "LCDB Data for (2675) Tolkien". Asteroid Lightcurve Database (LCDB). Retrieved 6 December 2016.
- ^ )
- ^ S2CID 46350317. Retrieved 6 December 2016.
- ^ ISSN 1052-8091. Retrieved 6 December 2016.
- S2CID 53493339. Retrieved 6 December 2016.
- ^ "2675 Tolkien (1982 GB)". Minor Planet Center. Retrieved 6 December 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 6 December 2016.
External links
- 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
- 2675 Tolkien at AstDyS-2, Asteroids—Dynamic Site
- 2675 Tolkien at the JPL Small-Body Database
