(12629) Jandeboer Main-belt Asteroid
Discovered on 25 March 1971 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Jan Allard de Boer (b. 1943) has been secretary of the Royal Dutch amateur society for meteorology and astronomy (NVWS) since 1995. He has done much to initiate contact between amateurs and professionals. Name suggested by A. v. d. Brugge and H. van Woerden.Naming citation (20121228/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Jandeboer is today
Seen from above the solar system on 2026-10-14: Jandeboer is 2.51 au from the Sun and 2.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12629 |
| Provisional designation | 2168 T-1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.46 km (#8,292 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.111 |
| Absolute magnitude (H) | 14.25 |
| Orbital period | 3.76 years |
| Semi-major axis | 2.42 au |
| Perihelion – aphelion | 2.11 – 2.73 au |
| Eccentricity | 0.127 |
| Inclination | 11.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.11 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Jan
- (2308) Schilt
- (3791) Marci
- (3847) Sindel
- (6266) Letzel
- (6834) Hunfeld
- (7218) Skacel
- (7221) Sallaba
- (7701) Zrzavy
- (7849) Janjosefric
- (8149) Ruff
- (9239) van Riebeeck
- (9259) Janvanparadijs
All asteroids named after someone called Jan
Also discovered on 25 March 1971
- (1873) Agenor
- (5408) The
- (6072) Hooghoudt
- (6616) Plotinos
- (6617) Boethius
- (6673) Degas
- (6751) van Genderen
- (7148) Reinholdbien
- (7211) Xerxes
- (7314) Pevsner
- (7624) Gluck
- (7690) Sackler