342843 Davidbowie
| Discovery | |
|---|---|
| Discovered by | F. Hormuth |
| Discovery site | Calar Alto Obs. |
| Discovery date | 21 December 2008 |
| Designations | |
| MPC designation | (342843) Davidbowie |
|
Named after
|
David Bowie (singer-songwriter) |
| 2008 YN3 · 2003 SG99 | |
| main-belt | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 11.56 yr (4,222 days) |
| Aphelion | 2.9930 AU |
| Perihelion | 2.5041 AU |
| 2.7486 AU | |
| Eccentricity | 0.0889 |
| 4.56 yr (1,664 days) | |
| 350.14° | |
| 0° 12m 58.68s / day | |
| Inclination | 2.7679° |
| 62.360° | |
| 300.49° | |
| Physical characteristics | |
| Dimensions | 2 km (calculated at 0.05) |
| 17.1 | |
342843 Davidbowie, provisional designation 2008 YN3, is a small asteroid from the middle region of the asteroid belt, approximately 2 kilometers in diameter. It was discovered on 21 December 2008, by German astronomer Felix Hormuth from Max-Planck-Institute for Astronomy at Calar Alto Observatory in Almería, southeastern Spain.
The asteroid orbits the Sun at a distance of 2.5–3.0 AU once every 4 years and 7 months (1,664 days). Its orbit has an eccentricity of 0.09 and an inclination of 3° with respect to the ecliptic. Notably, the asteroid had a close encounter with the 200 kilometer-sized asteroid 16 Psyche, one of the most massive bodies in the main-belt, which it passed at only 0.04 AU (6,000,000 km) on 15 May 1935. It was first identified as 2003 SG99 at Steward Observatory (Kitt Peak) in 2003, extending the asteroid's observation arc by 5 years prior to its discovery observation.
As of 2017, the asteroid's effective size, its composition, albedo and rotation period remain unknown. It has, however, a well-observed orbit with the lowest possible condition code and an observation arc that spans over a period of more than a decade. It was first observed in 2003, but not identified as a new asteroid until 2008. Based on its absolute magnitude of 17.1, its diameter is between 1 and 2 kilometers, assuming an albedo in the range of 0.05 to 0.25. Since most asteroids in the outer main-belt are of a carbonaceous rather than of a silicaceous composition, with a low albedo, typically around 0.05, the asteroid's diameter might be on the upper end of NASA's published conversion table, as the lower the albedo (reflectivity), the larger the body's diameter for its given absolute magnitude (brightness).
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