1535 Päijänne
| Discovery [1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Observatory |
| Discovery date | 9 September 1939 |
| Designations | |
| MPC designation | 1535 Paijanne |
|
Named after
|
Lake Päijänne (lake)[2] |
| 1939 RC · 1933 QE1 1944 OA · 1956 XB 1985 XE2 · A916 OB |
|
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 81.65 yr (29,823 days) |
| Aphelion | 3.7741 AU |
| Perihelion | 2.5630 AU |
| 3.1686 AU | |
| Eccentricity | 0.1911 |
| 5.64 yr (2,060 days) | |
| 243.50° | |
| Inclination | 6.0539° |
| 264.88° | |
| 39.405° | |
| Physical characteristics | |
| Dimensions | 26.72 km[4] 26.12±0.42 km[5] 25.518±0.187 km[6] 26.43 km (derived)[3] |
| 8.8448 h[7] | |
| 0.1299[4] 0.140±0.005[5] 0.1430±0.0230[6] 0.0764 (derived)[3] |
|
| S [3] | |
| 11.3 | |
1535 Päijänne, provisional designation 1939 RC, is a stony asteroid from the outer region of the asteroid belt, about 27 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at the Turku Observatory in the southwestern parts of Finland, on 9 September 1939.[8]
The S-type asteroid orbits the Sun at a distance of 2.6–3.8 AU once every 5 years and 8 months (2,060 days). Its orbit shows an eccentricity of 0.19 and is tilted by 6 degrees to the plane of the ecliptic. It has a rotation period of 8.8 hours, observed by French astronomer Laurent Bernasconi.[7] The body's albedo has been identified to be 0.13–0.14, according to observations made by the Infrared Astronomical Satellite, IRAS, the Japanese Akari satellite, and the Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission.[4][5][6]
The asteroid was named after Finland's second largest lake, Päijänne, located in south-central Finland, and more than a thousand square kilometers in size.[2]
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 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.
- ↑ 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
- 1535 Päijänne at the JPL Small-Body Database
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