31192 Aigoual
| Discovery [1] | |
|---|---|
| Discovery site | Pises Obs. |
| Discovery date | 29 December 1997 |
| Designations | |
| MPC designation | 31192 Aigoual |
Named after | Mont Aigoual (mountain)[2] |
|
1997 YH16 · 1978 UB4 1994 CG10 · 1996 RW26 2001 QS93 | |
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 37.34 yr (13,640 days) |
| Aphelion | 3.2657 AU |
| Perihelion | 2.2372 AU |
| 2.7515 AU | |
| Eccentricity | 0.1869 |
| 4.56 yr (1,667 days) | |
| 138.0519° | |
| 0° 12m 57.6s / day | |
| Inclination | 3.4528° |
| 65.6173° | |
| 278.131° | |
| Physical characteristics | |
| Dimensions | 7.34 km (calculated)[3] |
| 4.3291±0.0009 h[4] | |
| 0.057 (assumed)[3] | |
| C [3] | |
|
13.9[1] 14.00±0.24[5] 13.948±0.003 (R)[4] 14.4[3] | |
|
| |
31192 Aigoual, provisional designation 1997 YH16, is a carbonaceous asteroid from the outer region of the asteroid belt, about 7 kilometers in diameter. It was discovered on 29 December 1997, by staff members of the Pises Observatory in southern France.[6]
The C-type asteroid orbits the Sun at a distance of 2.2–3.3 AU once every 4 years and 7 months (1,667 days). Its orbit has an eccentricity of 0.19 and an inclination of 3° with respect to the plane of the ecliptic.[3] The first precovery was obtained at Palomar Observatory in 1978, extending the asteroid's observation arc by 19 years prior to its discovery.[6]
A rotational light-curve of this asteroid was obtained from photometric observations made at the U.S. Palomar Transient Factory in October 2010. The light-curve gave a rotation period of 4.3291±0.0009 hours with a brightness amplitude of 0.56 in magnitude (U=2).[4] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 7.3 kilometers, based on an absolute magnitude of 14.4.[3]
The minor planet was named after Mont Aigoual, in the Cévennes National Park, where the discovering observatory is located. It is the highest mountain of the Cévennes in the Massif Central, France.[2] Naming citation was published on 28 March 2002 (M.P.C. 45237).[7]
References
- 1 2 3 "JPL Small-Body Database Browser: 31192 Aigoual (1997 YH16)" (2016-03-02 last obs.). Jet Propulsion Laboratory. Retrieved May 2016.
- 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (31192) Aigoual. Springer Berlin Heidelberg. p. 890. ISBN 978-3-540-00238-3. Retrieved May 2016.
- 1 2 3 4 5 6 7 "LCDB Data for (31192) Aigoual". Asteroid Lightcurve Database (LCDB). Retrieved May 2016.
- 1 2 3 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved May 2016.
- ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved May 2016.
- 1 2 "31192 Aigoual (1997 YH16)". Minor Planet Center. Retrieved May 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved May 2016.
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 (35001)-(40000) – Minor Planet Center
- 31192 Aigoual at the JPL Small-Body Database
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