2513 Baetslé
| Discovery [1] | |
|---|---|
| Discovered by | S. Arend |
| Discovery site | Uccle—Belgium |
| Discovery date | 19 September 1950 |
| Designations | |
| MPC designation | 2513 Baetslé |
|
Named after
|
Paul-Louis Baetslé[2] |
| 1950 SH · 1936 PC 1943 RA · 1943 RC 1950 TK · 1950 TW2 1964 VO2 · 1971 UH3 1974 QV · 1981 QO |
|
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 71.94 yr (26,276 days) |
| Aphelion | 2.7007 AU |
| Perihelion | 1.8712 AU |
| 2.2860 AU | |
| Eccentricity | 0.1814 |
| 3.46 yr (1,262 days) | |
| 270.03° | |
| Inclination | 3.1617° |
| 257.62° | |
| 97.890° | |
| Physical characteristics | |
| Dimensions | 16.67 km[4] 5.054±0.086 km[5] 16.69 km (derived)[3] |
| 6.0792 h[lower-alpha 1] | |
| 0.0278[4] 0.3032±0.0453[5] 0.0333 (derived)[3] |
|
| S [3] | |
| 13.4[1] | |
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2513 Baetslé, provisional designation 1950 SH, is a stony asteroid from the inner regions of the asteroid belt, about 17 kilometers in diameter. It was discovered by Belgian astronomer Sylvain Arend at the Royal Observatory in Uccle, Belgium on 19 September 1950.[6] The asteroid orbits the Sun at a distance of 1.9–2.7 AU once every three and a half years, and takes about 6 hours for a full a rotation around its axis.[lower-alpha 1] Its orbit is almost coplanar – tilted by 3 degrees to the plane of the ecliptic – and shows a notable eccentricity of 0.18.[1]
Two observations by the Infrared Astronomical Satellite, IRAS, showed an absolute magnitude of 13.40 and a low geometric albedo of 0.03.[3] While the size, rotational period and orbital data are commonly found among main-belt asteroids, the albedo was exceptionally low and suggested that the body's composition could be mostly carbonaceous. However, subsequent observations by the Wide-field Infrared Survey Explorer's NEOWISE mission gave a much higher albedo 0.30 and the Collaborative Asteroid Lightcurve Link derives a value of 0.33, assuming the body to be of a stony rather than of a carbonaceous composition.[3][5] This also concurs with the fact that, based on its orbital elements, the asteroid is a member of the Flora family, one of the largest groups of rather bright and stony asteroids in the main-belt.[3]
It was named in memory of astronomer Paul-Louis Baetslé (1909–1983), professor at the Brussels Royal Military School and a friend of Sylvain Arend.[2]
References
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<references />, or <references group="..." />External links
- Dictionary of Minor Planet Names, Google books
- 2513 Baetslé at the JPL Small-Body Database
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This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |
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