| Discovery[1] | |
|---|---|
| Discovered by | Indiana University (Indiana Asteroid Program) |
| Discovery site | Goethe Link Obs. |
| Discovery date | 1 April 1955 |
| Designations | |
| (1852) Carpenter | |
Named after | Edwin Carpenter (American astronomer)[2] |
| 1955 GA · 1931 TT2 1937 WH · 1939 FK | |
| main-belt · Eos[3][4] | |
| Orbital characteristics[5] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 87.87yr (32,094 d) |
| Aphelion | 3.2004AU |
| Perihelion | 2.8329 AU |
| 3.0167 AU | |
| Eccentricity | 0.0609 |
| 5.24 yr (1,914 d) | |
| 194.18° | |
| 0° 11m 17.16s / day | |
| Inclination | 11.197° |
| 95.338° | |
| 353.15° | |
| Physical characteristics | |
| 21.378±0.208[6] 22.9 km | |
| 0.1224±0.024 0.128±0.025[6] | |
| 11.3[1][5] | |
1852 Carpenter, provisional designation1955 GA, is an Eoanasteroid from the outer regions of theasteroid belt, approximately 20 kilometers in diameter. The asteroid was discovered on 1 April 1955, by theIndiana Asteroid Program atGoethe Link Observatory near Brooklyn, Indiana, United States.
Carpenter is a core member of theEos family (606), the largestasteroid family in theouter main belt consisting of nearly 10,000 asteroids.[3][4][7]: 23 It orbits the Sun in theouter main-belt at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,913 days). Its orbit has aneccentricity of 0.06 and aninclination of 11° with respect to theecliptic.[5]
Thisminor planet was named after American astronomerEdwin Francis Carpenter (1898–1963), second director of theSteward Observatory who researched spectroscopic binaries and interacting galaxies. He played a major role in enabling the construction of theKitt Peak National Observatory.[2] The officialnaming citation was published by theMinor Planet Center on 1 April 1980 (M.P.C. 5282).[8]
