109 Felicitas
| Discovery | |
|---|---|
| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | October 9, 1869 |
| Designations | |
Named after | Felicitas |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 523.329 Gm (3.498 AU) |
| Perihelion | 283.326 Gm (1.894 AU) |
| 403.327 Gm (2.696 AU) | |
| Eccentricity | 0.298 |
| 1616.951 d (4.43 a) | |
Average orbital speed | 17.73 km/s |
| 331.256° | |
| Inclination | 7.886° |
| 3.207° | |
| 56.586° | |
| Physical characteristics | |
| Dimensions | 88.971 km[2] |
| Mass | 7.5×1017 kg |
| 0.0250 m/s² | |
| 0.0473 km/s | |
| 13.191[3] h | |
| Albedo | 0.07 ± 0.02[2] |
| Temperature | ~170 K |
Spectral type | GC (Tholen)[2] |
| 8.759[2] | |
|
| |
109 Felicitas is a dark and fairly large main-belt asteroid. It was discovered by German-American astronomer C. H. F. Peters on October 9, 1869, and named after Felicitas, the Roman goddess of success.[4] The only observed stellar occultation by Felicitas is one from Japan (March 29, 2003).[5]
During 2002, 109 Felicitas was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 89 ± 9 km. This is consistent with the asteroid dimensions computed through other means.[3]
References
- ↑ Yeomans, Donald K., "109 Felicitas", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-25.
- 1 2 3 4 Pravec, P.; et al. (May 2012), "Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations", Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan (1667), Bibcode:2012LPICo1667.6089P.
- 1 2 Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999–2003", Icarus 186 (1): 126–151, Bibcode:2007Icar..186..126M, doi:10.1016/j.icarus.2006.08.018
- ↑ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 23, ISBN 3642297188.
- ↑ Observed minor planet occultation events, version of 2005 July 26
External links
| ||||||
| ||||||||||||||||||||||||||||
This article is issued from Wikipedia - version of the Thursday, May 05, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.