1626 Sadeya
| Discovery [1] | |
|---|---|
| Discovered by | J. Comas Solà |
| Discovery site | Fabra Observatory |
| Discovery date | 10 January 1927 |
| Designations | |
| MPC designation | 1626 Sadeya |
|
Named after
|
Spanish and American Astronomical Society [2] |
| 1927 AA · 1956 AA | |
| main-belt · Phocaea [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 88.44 yr (32,303 days) |
| Aphelion | 3.0119 AU |
| Perihelion | 1.7150 AU |
| 2.3634 AU | |
| Eccentricity | 0.2743 |
| 3.63 yr (1,327 days) | |
| 154.17° | |
| Inclination | 25.291° |
| 279.54° | |
| 148.83° | |
| Physical characteristics | |
| Dimensions | 14.77±0.19 km[4] 15.14±0.49 km[5] 16.70 km (calculated)[3] |
| 3.420 h[6][7][8] 3.438±0.009 h[9] 3.414±0.005 h[10] 3.42048±0.00005 h[7] 3.419±0.001 h[11] |
|
| 0.512±0.016[4] 0.486±0.067[5] 0.23 (assumed)[3] |
|
| S [3] | |
| 11.1 | |
1626 Sadeya, provisional designation 1927 AA, is an eccentric, stony asteroid with a tilted orbit from the inner regions of the asteroid belt. It was discovered on 10 January 1927 at Fabra Observatory in Barcelona by Spanish astronomer of Catalan origin, Josep Comas i Solà.[12]
The asteroid is a member of the Phocaea family and measures about 15 kilometers in diameter. It orbits the Sun at a distance of 1.7–3.0 AU once every 3.63 years (1,327 days). Its orbit shows a high eccentricity of 0.27 and is heavily tilted by 25 degrees towards the plane of the ecliptic. It has a rotation period of 3.42 hours.[6][7][8] While observations by the space-based Akari and WISE/NEOWISE mission found an exceptionally high albedo of about 0.50 for the S-type asteroid, the Lightcurve Database project assumes a much lower value of 0.23.[3]
The minor planet was named after the Spanish and American Astronomical Society (Spanish: Sociedad Astrónomica de España y América), also known by its acronym "Sadeya". It was founded by Comas i Solà, who also was its first president.[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 3.4 Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ 5.0 5.1 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
- 1626 Sadeya at the JPL Small-Body Database
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