1405 Sibelius
| Discovery [1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Observatory |
| Discovery date | 12 September 1936 |
| Designations | |
| MPC designation | 1405 Sibelius |
|
Named after
|
Jean Sibelius (composer)[2] |
| 1936 RE · 1951 CO 1953 VK3 · 1963 ST |
|
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 64.28 yr (23,477 days) |
| Aphelion | 2.5808 AU |
| Perihelion | 1.9237 AU |
| 2.2522 AU | |
| Eccentricity | 0.1458 |
| 3.38 yr (1,235 days) | |
| 78.833° | |
| Inclination | 7.0327° |
| 312.11° | |
| 95.915° | |
| Physical characteristics | |
| Dimensions | 12.18 km[4] 7.175±0.089 km[5] 7.204 km[6] 6.21±0.35 km[7] 7.20 km (taken)[3] |
| 6.051 h[lower-alpha 1] | |
| 0.1432[4] 0.3516±0.0646[5] 0.3191[6] 0.458±0.068[7] |
|
| S [3] | |
| 12.5 | |
1405 Sibelius, provisional designation 1936 RE, is a stony asteroid from the inner regions of the asteroid belt, about 7 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory on 12 September 1936.[8]
The asteroid is a member of the Flora family, a large group of stony S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 1.9–2.6 AU once every 3 years and 5 months (1,235 days). Its orbit shows an eccentricity of 0.15 and is tilted by 7 degrees to the plane of the ecliptic. It has a rotation period of 6.1 hours[lower-alpha 1] and a geometric albedo of 0.14 to 0.46, according to the surveys carried out by the Infrared Astronomical Satellite, IRAS, the Wide-field Infrared Survey Explorer and subsequent NEOWISE mission.[4][5][7]
The minor planet was named after Finnish violinist and composer of the late Romantic and early-modern periods, Jean Sibelius (1865–1957).[2]
References
- ↑ 1.0 1.1 Pravec (2007) web: rotation period 6.051±0.001 hours with a brightness amplitude of 0.11 mag. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (1405) Sibelius
- ↑ 1.0 1.1 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 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 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 7.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 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
- 1405 Sibelius at the JPL Small-Body Database
- Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm
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