854 Frostia: Difference between revisions
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| alt_names=SIGMA 29; 1931 MB; 1935 QE; 1950 VP |
| alt_names=SIGMA 29; 1931 MB; 1935 QE; 1950 VP |
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| mp_mp_category=[[Main belt]] |
| mp_mp_category=[[Main belt]] |
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| epoch= |
| epoch=2014-Dec-09 ([[Julian day|JD]] 2457000.5) |
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| semimajor= |
| semimajor=2.3684 [[Astronomical unit|AU]] |
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| perihelion= |
| perihelion=1.9572 AU |
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| aphelion= |
| aphelion=2.7797 AU |
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| eccentricity=0. |
| eccentricity=0.1736 |
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| period=1331. |
| period=1331.337 d (3.645 [[Julian year (astronomy)|a]]) |
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| inclination=6. |
| inclination=6.0877° |
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| asc_node=190. |
| asc_node=190.6049° |
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| arg_peri= |
| arg_peri=84.3877° |
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| mean_anomaly= |
| mean_anomaly=326.2985° |
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| avg_speed=19.21 km/s |
| avg_speed=19.21 km/s |
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| dimensions=8.39 ± 1.27<ref name="Carry2012"/> km |
| dimensions=8.39 ± 1.27<ref name="Carry2012"/> km |
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| surface_grav=0.0042? m/s² |
| surface_grav=0.0042? m/s² |
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| escape_velocity=0.0079? km/s |
| escape_velocity=0.0079? km/s |
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| rotation=1.57 d |
| rotation=1.57 d (13 hours, 33 minutes, 36 seconds) |
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| spectral_type= |
| spectral_type= |
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| abs_magnitude= |
| abs_magnitude=11.9 |
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| albedo=0. |
| albedo=0.33-0.6 |
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| single_temperature=~181 [[kelvin|K]] |
| single_temperature=~181 [[kelvin|K]] |
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}} |
}} |
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Revision as of 14:57, 29 May 2015
| Discovery | |
|---|---|
| Discovered by | S. Beljavskij |
| Discovery date | April 3, 1916 |
| Designations | |
| SIGMA 29; 1931 MB; 1935 QE; 1950 VP | |
| Orbital characteristics | |
| Epoch 2014-Dec-09 (JD 2457000.5) | |
| Aphelion | 2.7797 AU |
| Perihelion | 1.9572 AU |
| 2.3684 AU | |
| Eccentricity | 0.1736 |
| 1331.337 d (3.645 a) | |
Average orbital speed | 19.21 km/s |
| 326.2985° | |
| Inclination | 6.0877° |
| 190.6049° | |
| 84.3877° | |
| 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 |
| 0.0042? m/s² | |
| 0.0079? km/s | |
| 1.57 d (13 hours, 33 minutes, 36 seconds) | |
| Albedo | 0.33-0.6 |
| Temperature | ~181 K |
| 11.9 | |
| 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 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 1.572 days.[2]
References
- ^ 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
_mathilde.jpg){kind=small} | This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |