(12747) Michageffert Main-belt Asteroid
Discovered on 18 December 1992 by E. W. Elst at Caussols.
Michael Geffert (b. 1953) is a German astrometrist at Bonn University working on the precession of stars in globular clusters. He has done valuable work on the Hipparcos input catalog. A member of a well-known musical family, he also occupies himself successfully with musical performance and drawing.Naming citation (20031110/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Michageffert is today
Seen from above the solar system on 2026-10-14: Michageffert is 2.61 au from the Sun and 1.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12747 |
| Provisional designation | 1992 YN2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.24 km (#14,621 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.352 |
| Rotation period | 2.93 hours |
| Absolute magnitude (H) | 14.65 |
| Orbital period | 3.49 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 1.98 – 2.62 au |
| Eccentricity | 0.139 |
| Inclination | 2.31° |
| Closest distance between its orbit and Earth's (MOID) | 0.991 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Michael
- (3192) A'Hearn
- (4477) Kelley
- (4599) Rowan
- (5373) Michaelkurtz
- (5554) Keesey
- (5569) Colby
- (6406) Mikejura
- (6569) Ondaatje
- (7738) Heyman
- (7936) Mikemagee
- (8032) Michaeladams
- (8129) Michaelbusch
All asteroids named after someone called Michael
Also discovered on 18 December 1992
- (7525) Kiyohira
- (8188) Okegaya
- (10119) Remarque
- (10120) Ypres
- (10551) Goteborg
- (11926) Orinoco
- (12339) Carloo
- (12340) Stalle
- (16598) Brugmansia
- (17518) Redqueen
- (17519) Pritsak
- (20041) Gainor