13058 Alfredstevens
| Discovery [1] | |
|---|---|
| Discovered by | E. W. Elst |
| Discovery site | La Silla Obs. |
| Discovery date | 19 November 1990 |
| Designations | |
| MPC designation | 13058 Alfredstevens |
|
Named after
|
Alfred Stevens (painter)[2] |
| 1990 WN3 · 1992 GB7 1992 HB6 |
|
| main-belt · Vesta family [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 25.3 yr (9,239 days) |
| Aphelion | 2.6299 AU |
| Perihelion | 2.0859 AU |
| 2.3579 AU | |
| Eccentricity | 0.1154 |
| 3.62 yr (1,322 days) | |
| 45.9581° | |
| Inclination | 6.1055° |
| 197.0955° | |
| 214.3° | |
| Earth MOID | 1.09785 AU (164.236 Gm) |
| Jupiter MOID | 2.71831 AU (406.653 Gm) |
| Physical characteristics | |
| Dimensions | 2.601±0.409 km[4] 3.06 km (calculated)[3] |
| 4.2993±0.0057 h[5] | |
| 0.3443±0.0823[4] 0.20 (assumed)[3] |
|
| S [3] | |
| 14.5[1] 15.23±0.26[6] 14.7[4] 14.483±0.004 (R)[5] 14.93[3] |
|
13058 Alfredstevens, provisional designation 1990 WN3, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered by Belgian astronomer Eric Elst at ESO's La Silla Observatory in Northern Chile, on 19 November 1990.[7]
Based on its orbital elements, the S-type asteroid is a member of the Vesta family, a group of asteroids that originated from a massive impact on the Southern Hemnisphere of 4 Vesta, the family's namesake. It orbits the Sun at a distance of 2.1–2.6 AU once every 3 years and 7 months (1,322 days). Its orbit has an eccentricity of 0.12 and an inclination of 6° with respect to the plane of the ecliptic.[1] The first precovery was taken at Palomar Observatory on 14 November 1990, extending the asteroid's observation arc by just a few days prior to its discovery.[7]
A rotational light-curve of this asteroid was obtained from photometric observations made at the U.S. Palomar Transient Factory in January 2013. The light-curve gave a rotation period of 4.2993±0.0057 hours with a brightness variation of 0.45 in magnitude (U=2).[5] According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measures 2.6 kilometers in diameter and its surface has a high albedo of 0.34,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a larger diameter of 3.1 kilometers, based on an absolute magnitude of 14.93.[3]
The minor planet was named in honour of Belgian painter Alfred Stevens (1823–1906), known for his paintings of elegant modern women.[2] Naming citation was published on 30 January 2010 (M.P.C. 68446).[8]
References
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- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 4.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
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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
- 13058 Alfredstevens at the JPL Small-Body Database
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