124 Alkeste
| 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.
References
- ↑ Yeomans, Donald K., "124 Alkeste", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-25.
- ↑ Warner, Brian D. (December 2007), "Initial Results of a Dedicated H-G Project", The Minor Planet Bulletin 34, pp. 113–119, Bibcode:2007MPBu...34..113W.
- ↑ Lutz D. Schmadel, Dictionary of Minor Planet Names, p.27.
External links
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