(12112) Sprague Main-belt Asteroid
Discovered on 23 June 1998 by CSS at Catalina.
Ann Sprague (b. 1946) is a senior research associate with the Lunar and Planetary Laboratory of the University of Arizona. She is known for her work on the atmospheres of Mercury, the moon and Mars, as well as on the Messenger mission to Mercury.Naming citation (20100923/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Sprague is today
Seen from above the solar system on 2026-10-14: Sprague is 3.03 au from the Sun and 2.30 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12112 |
| Provisional designation | 1998 MK4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.1 km (#3,373 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.140 |
| Rotation period | 3.83 hours |
| Absolute magnitude (H) | 12.21 |
| Orbital period | 5.48 years |
| Semi-major axis | 3.11 au |
| Perihelion – aphelion | 2.66 – 3.56 au |
| Eccentricity | 0.145 |
| Inclination | 22.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.75 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ann
- (7804) Boesgaard
- (9774) Annjudge
- (14570) Burkam
- (18707) Annchi
- (22414) Hornschemeier
- (23018) Annmoriarty
- (24316) Anncooper
- (25511) Annlipinsky
- (25512) Anncomins
- (30396) Annleonard
- (31272) Makosinski
- (48774) Anngower
All asteroids named after someone called Ann
Also discovered on 23 June 1998
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- (13413) Bobpeterson
- (13414) Grantham
- (13415) Stevenbland
- (13416) Berryman
- (13817) Genobechetti
- (13857) Stafford
← (12111) Ulm · (12113) Hollows →