854 Frostia
| Discovery | |
|---|---|
| Discovered by | S. Beljavskij |
| Discovery date | 3 April 1916 |
| Designations | |
| SIGMA 29; 1931 MB; 1935 QE; 1950 VP | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 73.52 yr (26853 d) |
| Aphelion | 2.7805 AU (415.96 Gm) |
| Perihelion | 1.9566 AU (292.70 Gm) |
| 2.3685 AU (354.32 Gm) | |
| Eccentricity | 0.17393 |
| 3.65 yr (1331.4 d) | |
Average orbital speed | 19.21 km/s |
| 128.5557° | |
| 0° 16m 13.393s / day | |
| Inclination | 6.0883° |
| 190.6003° | |
| 84.3355° | |
| Earth MOID | 0.951756 AU (142.3807 Gm) |
| Jupiter MOID | 2.34463 AU (350.752 Gm) |
| TJupiter | 3.518 |
| Physical characteristics | |
| Dimensions | 8.39 ± 1.27 km[2] |
| Mass | (1.06 ± 0.95) × 1015 kg[2] |
Mean density | 0.88 ± 0.13 g/cm3[2] |
Equatorial surface gravity | 0.0042? m/s² |
Equatorial escape velocity | 0.0079? km/s |
| 37.56 h (1.565 d) | |
| 0.33-0.6 | |
| Temperature | ~181 K |
| 12.0 | |
| Discovery | |
|---|---|
| Discovered by | R. Behrend L. Bernasconi A. Klotz R. Durkee |
| Discovery date | 2004/07/17 |
| Light curve | |
| Orbital characteristics | |
| 17 km | |
| Eccentricity | ? |
| 1.572 ± 0.00004 d 1 day, 13 hours, 43 minutes, 41 ± 3 seconds | |
| 25 mas (maximum) | |
| Satellite of | 854 Frostia |
| Physical characteristics | |
| Dimensions | 4.6 km |
| Volume | 51 km3 (assumed) |
| 0.7 fainter than primary | |
| ~14.8 | |
854 Frostia is a main-belt asteroid orbiting the sun. It was discovered in 1916 by Sergei Ivanovich Belyavsky from Simeiz Observatory in Crimea and is named after Edwin Brant Frost, an American astronomer. This asteroid measures approximately 8.4[2] 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 1.572 days.[3]
References
- ^ "854 Frostia (1916 S29)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 4 May 2016.
- ^ a b c d Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ^ Johnston, Robert. "(854) Frostia". johnstonsarchive.net. Retrieved 28 May 2015.
External links
- Discovery Circumstances: Numbered Minor Planets
- Johnston Archive entry for 854 Frostia
- IAUC 8389 announcing the satellite
- Orbital simulation from JPL (Java) / Ephemeris
- 854 Frostia at the JPL Small-Body Database
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