1909 Alekhin
| Discovery [1] | |
|---|---|
| Discovered by | L. Zhuravleva |
| Discovery site | CrAO - Nauchnyj |
| Discovery date | 4 September 1972 |
| Designations | |
| MPC designation | 1909 Alekhin |
|
Named after
|
Alexander Alekhine (chess grandmaster)[2] |
| 1972 RW2 · 1926 GU 1930 KF · 1930 KM 1934 NZ · 1934 OC 1941 FJ · 1960 FD 1969 UU · 1971 DL |
|
| main-belt · (inner) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 89.51 yr (32,693 days) |
| Aphelion | 2.9695 AU |
| Perihelion | 1.8746 AU |
| 2.4221 AU | |
| Eccentricity | 0.2260 |
| 3.77 yr (1,377 days) | |
| 204.64° | |
| Inclination | 1.7949° |
| 227.49° | |
| 5.7392° | |
| Physical characteristics | |
| Dimensions | 17.42±1.5 km (IRAS: 15) 18.59±0.37 km[4] 18.847±0.129 km[5] 15.45±9.22 km[6] 17.34 km (derived)[3] |
| 148.6 h[7] 148.2252±0.6228 h[8] |
|
| 0.0700±0.014 (IRAS: 15) 0.062±0.003[4] 0.0460±0.0018[5] 0.067±0.083[6] 0.0488 (derived)[3] |
|
| S [3] | |
| 12.7[1] | |
1909 Alekhin, provisional designation 1972 RW2, is a stony asteroid and slow rotator from the inner regions of the asteroid belt, about 17 kilometers in diameter. It was discovered by Russian–Ukrainian female astronomer Lyudmila Zhuravlyova at the Crimean Astrophysical Observatory in Nauchnyj, on 4 September 1972.[9]
The S-type asteroid orbits the Sun at a distance of 1.9–3.0 AU once every 3 years and 9 months (1,377 days). It has a notably slow rotation period of about 148 hours.[7][8] Its orbit – tilted by 2 degrees to the plane of the ecliptic – shows a significant eccentricity of 0.23. Based on the surveys carried out by Akari, WISE/NEOWISE, its albedo is between 0.05 and 0.07.[4][5][6]
The asteroid is scheduled to occlude a 9.1 magnitude star in the Leo constellation on 30 November 2008, dimming the magnitude of both heavenly bodies for a maximum duration of 0.6 seconds. Astronomers had, as of March 2008, not predicted an optimal trajectory for the event.[10] Lyudmila Zhuravlyova is ranked number 43 in Harvard's ranking of those who discovered minor planets. She discovered 200 minor planets, thirteen of which were co-discoveries, between 1972 and 1992.[11]
The minor planet was named in honour of Russian-born Alexander Alekhine (1892–1946), chess grandmaster, considered one of the greatest chess players ever.[2]
References
- ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 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.
- ↑ 6.0 6.1 6.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.[dead link]
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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
- 1909 Alekhin at the JPL Small-Body Database
<templatestyles src="Asbox/styles.css"></templatestyles>
_mathilde.jpg){kind=small} |
This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |
