1064 Aethusa
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 2 August 1926 |
| Designations | |
| MPC designation | 1064 Aethusa |
|
Named after
|
Aethusa cynapium (fool's parsley)[2] |
| 1926 PA · 1962 HF | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 89.08 yr (32,535 days) |
| Aphelion | 2.9926 AU |
| Perihelion | 2.0930 AU |
| 2.5428 AU | |
| Eccentricity | 0.1768 |
| 4.05 yr (1481.0 days) | |
| 331.05° | |
| Inclination | 9.5007° |
| 280.58° | |
| 20.605° | |
| Earth MOID | 1.0799 AU |
| Physical characteristics | |
| Dimensions | 18.7 km |
| 8.621 h | |
| 0.3202 | |
| 10.6 | |
1064 Aethusa, provisional designation 1926 PA, is a main-belt asteroid, discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 2 August 1926. It is orbiting the Sun in a distance of 2.09−2.99 AU, measures about 19 kilometers in diameter, and has a high geometric albedo of 0.32.[1]
Measurements made with the IRAS observatory give a diameter of 20.64 ± 1.37 km and a geometric albedo of 0.27 ± 0.03. By comparison, the MIPS photometer on the Spitzer Space Telescope gives a diameter of 8.621 ± 4.28 km and a geometric albedo of 0.17 ± 0.04.[3] Other photometric observations of the asteroid collected during 2006 show a rotation period of 8.621 ± 0.004 hours with a brightness variation of 0.18 ± 0.02 magnitude.[4]
The asteroid is named after a genus in the carrot family, "Aethusa", of which the plant Aethusa cynapium (fool's parsley) is the only member.[2]
See also
References
External links
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- Discovery Circumstances: Numbered Minor Planets
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