854 Frostia
From Wikipedia, the free encyclopedia
| Discovery | |
|---|---|
| Discovered by | S. Beljavskij |
| Discovery date | April 3, 1916 |
| Designations | |
| Alternative names | SIGMA 29; 1931 MB; 1935 QE; 1950 VP |
| Orbital characteristics | |
| Epoch November 26, 2005 (JD 2453700.5) | |
| Aphelion | 415.852 Gm (2.780 AU) |
| Perihelion | 292.801 Gm (1.957 AU) |
| Semi-major axis | 354.326 Gm (2.369 AU) |
| Eccentricity | 0.174 |
| Orbital period | 1331.422 d (3.65 a) |
| Average orbital speed | 19.21 km/s |
| Mean anomaly | 154.919° |
| Inclination | 6.091° |
| Longitude of ascending node | 190.837° |
| Argument of perihelion | 83.494° |
| Physical characteristics | |
| Dimensions | 8.39 ± 1.27[1] km |
| Mass | (1.06 ± 0.95) × 1015[1] kg |
| Mean density | 0.88 ± 0.13[1] g/cm3 |
| Equatorial surface gravity | 0.0042? m/s² |
| Escape velocity | 0.0079? km/s |
| Rotation period | 1.57 d |
| Albedo | 0.1? |
| Temperature | ~181 K |
| Absolute magnitude (H) | 12.1 |
|
| |
854 Frostia is a main-belt asteroid orbiting the sun. It was discovered in 1916 by Sergey Ivanovich Belyavsky from Simiez Observatory in Crimea and is named after Edwin Brant Frost, an American astronomer. This asteroid measures approximately 8.4[1] km in diameter.
A satellite, designated S/2004 (854) 1, was identified based on light curve observations in July 2004 by Raoul Behrend, Laurent Bernasconi, Alain Klotz, and Russell I. Durkee. It is roughly 10 km in diameter and orbits about 25 km from Frostia with an orbital period of 1.5713 days.
References
- ↑ 1.0 1.1 1.2 1.3 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98-118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
External links
- Discovery Circumstances: Numbered Minor Planets
- Johnston Archive entry for 854 Frostia
- IAUC 8389 announcing the satellite
- Orbital simulation from JPL (Java) / Ephemeris
| |||||
| ||||||||||||||||||||||
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.