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]
Discovery | |
---|---|
Discovered by | Max Wolf |
Discovery site | Heidelberg |
Discovery date | 8 September 1907 |
Designations | |
MPC designation | (642) Clara |
Alternative designations | 1907 ZY |
Orbital characteristics[1] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 108.42 yr (39599 d) |
Aphelion | 3.5799 AU (535.55 Gm) |
Perihelion | 2.8028 AU (419.29 Gm) |
Semi-major axis | 3.1914 AU (477.43 Gm) |
Eccentricity | 0.12176 |
Orbital period (sidereal) | 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° |
Argument of perihelion | 118.101° |
Physical characteristics | |
Mean radius | 16.68±0.75 km |
Synodic rotation period | 8.2308 h (0.34295 d) |
Geometric albedo | 0.1617±0.015 |
Absolute magnitude (H) | 9.98 |
| |
---|---|
|
Small Solar System bodies | |||||||
---|---|---|---|---|---|---|---|
Minor planets |
| ||||||
Comets |
| ||||||
Other |
|
![]() | This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |