Astronomy:642 Clara
From HandWiki
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 8 September 1907 |
| Designations | |
| (642) Clara | |
| 1907 ZY | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 108.42 yr (39599 d) |
| |{{{apsis}}}|helion}} | 3.5799 astronomical unit|AU (535.55 Gm) |
| |{{{apsis}}}|helion}} | 2.8028 AU (419.29 Gm) |
| 3.1914 AU (477.43 Gm) | |
| Eccentricity | 0.12176 |
| Orbital period | 5.70 yr (2082.4 d) |
| Mean anomaly | 307.116° |
| Mean motion | 0° 10m 22.368s / day |
| Inclination | 8.1702° |
| Longitude of ascending node | 5.9035° |
| 118.101° | |
| Physical characteristics | |
| Mean radius | 16.68±0.75 km |
| Rotation period | 8.2308 h (0.34295 d) |
| Geometric albedo | 0.1617±0.015 |
| Absolute magnitude (H) | 9.98 |
642 Clara is a minor planet orbiting the Sun. Discovered by Max Wolf in 1907, it is named after one of the housekeepers in Wolf's household.[2]
References
- ↑ "642 Clara (1907 ZY)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=642;cad=1.
- ↑ Schmadel, Lutz D. (2007). "(642) Clara". Dictionary of Minor Planet Names – (642) Clara. Springer Berlin Heidelberg. pp. 64. doi:10.1007/978-3-540-29925-7_643. ISBN 978-3-540-00238-3.
External links
- 642 Clara at AstDyS-2, Asteroids—Dynamic Site
- 642 Clara at the JPL Small-Body Database
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