2927 Alamosa
| Discovery [1] | |
|---|---|
| Discovered by | N. G. Thomas |
| Discovery site | Anderson Mesa Station |
| Discovery date | 5 October 1981 |
| Designations | |
| MPC designation | 2927 Alamosa |
Named after |
Alamosa, Colorado (discoverer’s birthplace)[2] |
|
1981 TM · 1936 OA 1975 EN2 | |
| main-belt · (inner) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 79.34 yr (28,979 days) |
| Aphelion | 2.9601 AU |
| Perihelion | 2.1072 AU |
| 2.5337 AU | |
| Eccentricity | 0.1682 |
| 4.03 yr (1,473 days) | |
| 180.27° | |
| Inclination | 17.021° |
| 150.49° | |
| 189.35° | |
| Physical characteristics | |
| Dimensions | 11.83 km (calculated)[3] |
| 4.3832 h[4] | |
| 0.20 (assumed)[3] | |
| S [3] | |
| 12.0[1] | |
|
| |
2927 Alamosa, provisional designation 1981 TM, is a stony asteroid from the inner regions of the asteroid belt, about 12 kilometers in diameter. It was discovered on 5 October 1981, by American astronomer Norman Thomas at Lowell's Anderson Mesa Station in Flagstaff, Arizona.[5]
The S-type asteroid orbits the Sun at a distance of 2.1–3.0 AU once every 4.03 years (1,473 days). The body's orbit is tilted by 17 degrees to the plane of the ecliptic and shows an eccentricity of 0.17. It has a rotation period of 4.4 hours[4] and an albedo of 0.20, assumed by the Collaborative Asteroid Lightcurve Link (CALL).[3]
The minor planet was named for the discoverer's birthplace, Alamosa, Colorado, the central town of the San Luis Valley of southern Colorado, located on the upper Rio Grande River.[2] Almosa is Spanish for cottonwood tree.
References
- 1 2 3 "JPL Small-Body Database Browser: 2927 Alamosa (1981 TM)" (2015-11-18 last obs.). Jet Propulsion Laboratory. Retrieved December 2015.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (2927) Alamosa. Springer Berlin Heidelberg. p. 241. ISBN 978-3-540-29925-7. Retrieved December 2015.
- 1 2 3 4 5 "LCDB Data for (2927) Alamosa". Asteroid Lightcurve Database (LCDB). Retrieved December 2015.
- 1 2 Odden, Caroline; French, John; Briggs, John (October 2012). "Lightcurve Analysis for Four Asteroids". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 39 (4): 236–238. Bibcode:2012MPBu...39..236O. ISSN 1052-8091. Retrieved December 2015.
- ↑ "2927 Alamosa (1981 TM)". Minor Planet Center. Retrieved December 2015.
External links
- 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
- 2927 Alamosa at the JPL Small-Body Database
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