(12631) Mariekebaan Main-belt Asteroid
Discovered on 26 March 1971 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Marieke Baan (b. 1961) is a Dutch public information officer. In 2005 she became press officer of the Dutch Research School for Astronomy. As such, she promotes astronomy through press releases, media events, educational activities and other forms of public outreach.Naming citation (MPC batch dated 2013-07-22), IAU / Minor Planet Center, via NASA/JPL
Where Mariekebaan is today
Seen from above the solar system on 2026-10-14: Mariekebaan is 3.60 au from the Sun and 3.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12631 |
| Provisional designation | 3051 T-1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.74 km (#6,840 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.141 |
| Absolute magnitude (H) | 13.47 |
| Orbital period | 5.19 years |
| Semi-major axis | 3.00 au |
| Perihelion – aphelion | 2.39 – 3.61 au |
| Eccentricity | 0.204 |
| Inclination | 10.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.40 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 March 1971
- (5195) Kaendler
- (5491) Kaulbach
- (5492) Thoma
- (5698) Nolde
- (6202) Georgemiley
- (6257) Thorvaldsen
- (6351) Neumann
- (6429) Brancusi
- (6674) Cezanne
- (6752) Ashley
- (7367) Giotto
- (7908) Zwingli