1525 Savonlinna
| Discovery [1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Observatory |
| Discovery date | 18 September 1939 |
| Designations | |
| MPC designation | 1525 Savonlinna |
|
Named after
|
Savonlinna (Finnish town)[2] |
| 1939 SC · 1930 SE | |
| main-belt · (middle) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 85.16 yr (31,103 days) |
| Aphelion | 3.4106 AU |
| Perihelion | 1.9790 AU |
| 2.6948 AU | |
| Eccentricity | 0.2656 |
| 4.42 yr (1,616 days) | |
| 57.679° | |
| Inclination | 5.8671° |
| 279.28° | |
| 64.459° | |
| Physical characteristics | |
| Dimensions | 12.18 km (IRAS)[1] 12.23±0.14 km[4] 12.06 km (derived)[3] |
| 14.634 h[5] 22.8406±0.0296 h[6] |
|
| 0.1306 (IRAS)[1] 0.045±0.027[4] 0.0840 (derived)[3] |
|
| S [3] | |
| 12.9[1] | |
1525 Savonlinna, provisional designation 1939 SC, is an eccentric, stony asteroid from the middle region of the asteroid belt, about 12 kilometers in diameter. It was discovered on 18 September 1939, by Finnish astronomer Yrjö Väisälä at the Turku Observatory in southwestern Finland.[7]
The asteroid orbits the Sun at a distance of 2.0–3.4 AU once every 4 years and 5 months (1,616 days). Its orbit is tilted by 6 degrees to the plane of the ecliptic and shows a relatively high eccentricity of 0.27. It has a divergent rotation period of 14.6 and 22.8 hours, based on two different observations made in 2012 and 2015, respectively.[5][6] According to a preliminary analysis of WISE/NEOWISE cryogenic and post-cryogenic observations, the body has an albedo of 0.05,[1] while the Infrared Astronomical Satellite, IRAS, observed an albedo of 0.13, and the Collaborative Asteroid Lightcurve Link derives a value of 0.08, which is unusually low for an assumed S-type asteroid.[3]
The minor planet was named for the eastern Finnish town Savonlinna, located in the heart of the Saimaa lake region.[2]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 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 3.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 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.
- ↑ 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
- 1525 Savonlinna at the JPL Small-Body Database
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