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Discovery
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| Discovered by | S. Beljavskij |
| Discovery date | April 3, 1916 |
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Designations
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| Alternate name(s) | SIGMA 29; 1931 MB; 1935 QE; 1950 VP |
| 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° |
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Physical characteristics
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| Dimensions | 13.7 ± 5.6 km |
| Mass | 3.5×1015? kg |
| Mean density | 2.0? 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 |
| Spectral type | ? |
| Absolute magnitude (H) | 12.1 |
854 Frostia is an asteroid orbiting the sun. It was discovered in 1916 by Sergey Ivanovich Belyavsky from Simiez Observatory in Crimea. It measures approximately 13.7km in diameter. It is named after Edwin Brant Frost, an American astronomer.
A satellite, designated S/2004 (854) 1, was identified based on lightcurve 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.
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