124 Alkeste
From Infogalactic: the planetary knowledge core
| Discovery | |
|---|---|
| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | August 23, 1872 |
| Designations | |
|
Named after
|
Alcestis |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 423.558 Gm (2.831 AU) |
| Perihelion | 363.297 Gm (2.428 AU) |
| 393.427 Gm (2.630 AU) | |
| Eccentricity | 0.077 |
| 1557.784 d (4.26 a) | |
|
Average orbital speed
|
18.34 km/s |
| 253.158° | |
| Inclination | 2.951° |
| 188.184° | |
| 63.214° | |
| Physical characteristics | |
| Dimensions | 76.4 km |
| Mass | 4.7×1017 kg |
| 0.0214 m/s² | |
| 0.0404 km/s | |
| Temperature | ~172 K |
|
Spectral type
|
S |
| 8.09[2] | |
124 Alkeste is a large main-belt asteroid. It is an S-type in composition. C.H.F. Peters discovered the asteroid on August 23, 1872, from the observatory at Hamilton College, New York State. The name was chosen by Adelinde Weiss, wife of the astronomer Edmund Weiss, and refers to Alcestis, a woman in Greek mythology.[3]
Only one stellar occultation by Alkeste has been observed, when the asteroid passed in front of the third magnitude star Beta Virginis on June 24, 2003. The event was observed from Australia and New Zealand.[citation needed]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lutz D. Schmadel, Dictionary of Minor Planet Names, p.27.
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