281 Lucretia
|
A three-dimensional model of 281 Lucretia based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | October 31, 1888 |
| Designations | |
Named after | Caroline Lucretia Herschel |
|
A906 FD; 1948 EK; 1984 JX | |
| Main belt (Flora family) | |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 370.638 Gm (2.478 AU) |
| Perihelion | 283.953 Gm (1.898 AU) |
| 327.295 Gm (2.188 AU) | |
| Eccentricity | 0.132 |
| 1181.985 d (3.24 a) | |
Average orbital speed | 20.14 km/s |
| 323.188° | |
| Inclination | 5.308° |
| 31.502° | |
| 16.288° | |
| Physical characteristics | |
| Dimensions | 12 km [1] |
| Mass | ~2×1015 (estimate) |
Mean density | ~2.7 g/cm³ (estimate) [2] |
| ~0.004 m/s² (estimate) | |
| ~0.007 km/s (estimate) | |
| 0.181 d (4.348 h) [3] | |
| Albedo | 0.199 [1] |
| Temperature |
~183 K max: 277 K (+4°C) |
Spectral type | S [3] |
| 12.02 | |
|
| |
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281 Lucretia is an asteroid belonging to the Flora family in the Main Belt.
It was discovered by Johann Palisa on October 31, 1888 in Vienna. It is named for the middle name of Caroline Herschel, one of the first female astronomers.
References
- 1 2 Supplemental IRAS Minor Planet Survey
- ↑ G. A. Krasinsky; et al. (2002). "Hidden Mass in the Asteroid Belt". Icarus 158: 98. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837.
- 1 2 PDS lightcurve data
External links
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