(228883) Cliffsimak
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Asteroid (228883) Cliffsimak |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Eos family |
| Major semi-axis | 3.0120 AU |
| eccentricity | 0.1096 |
| Perihelion - aphelion | 2.6819 AU - 3.3420 AU |
| Inclination of the orbit plane | 9.3765 ° |
| Length of the ascending node | 235.0275 ° |
| Argument of the periapsis | 121.0116 ° |
| Time of passage of the perihelion | July 6, 2014 |
| Sidereal period | 5.23 a |
| Physical Properties | |
| Medium diameter | 3.248 (± 1.097) km |
| Albedo | 0.167 (± 0.069) |
| Absolute brightness | 15.3 mag |
| history | |
| Explorer | Bernard Christophe |
| Date of discovery | August 2, 2003 |
| Another name | 2003 PT 4 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(228883) Cliffsimak is an asteroid of the main outer belt discovered on August 2, 2003 by the French astronomer Bernard Christophe at the Saint-Sulpice Observatory ( IAU code 947) in Saint-Sulpice , Canton of Noailles .
The asteroid belongs in the broader sense to the Eos family , a group of asteroids, which typically have large semiaxes from 2.95 to 3.1 AU , bounded inward by the Kirkwood gap of the 7: 3 resonance with Jupiter , and orbital inclinations between 8 ° and 12 °. The group is named after the asteroid (221) Eos . The family is believed to have emerged from a collision more than a billion years ago. The timeless (non- osculating ) orbital elements of (228883) Cliffsimak are almost identical to those of the larger asteroid (9609) Ponomarevalya, assuming the absolute magnitude of 15.3 compared to 12.0 mag .
(228883) Cliffsimak was named on March 30, 2010 after the American science fiction author Clifford D. Simak (1904–1988). In the explanation of the naming, Bernard Christophe writes that Simak's three novels are among his favorite books: Time and Again (1951, German translation "Tod aus der Zukunft"), Way Station (1963, "Raumstation auf der Erde") and Ring Around the Sun (1953, "Ring around the Sun").
Web links
- (228883) Cliffsimak in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (228883) Cliffsimak in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances of (228883) Cliffsimak according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ Image by Bernard Christophe during the WETO 2012 conference (French)
- ↑ David Vokrouhlický , Miroslav Brož , Alessandro Morbidelli , William Bottke , David Nesvorný , Daniel Lazzaro, Andy Rivkin: Yarkovsky footprints in the Eos family ( PDF , English)
- ↑ The family membership of (228883) Cliffsimak in the AstDyS-2 database (English)