(9697) Louwman Main-belt Asteroid
Discovered on 25 March 1971 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Peter J. K. Louwman (b. 1935), a well-known popularizer of astronomy, was secretary for many years of the working group Moon and Planets of the Dutch Society for Astronomy and Meteorology. He is an expert on the history of telescope building.Naming citation (20001111/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Louwman is today
Seen from above the solar system on 2026-10-14: Louwman is 3.04 au from the Sun and 3.76 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9697 |
| Provisional designation | 1295 T-1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.34 km (#9,976 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.205 |
| Absolute magnitude (H) | 13.96 |
| Orbital period | 4.96 years |
| Semi-major axis | 2.91 au |
| Perihelion – aphelion | 2.77 – 3.05 au |
| Eccentricity | 0.0477 |
| Inclination | 5.44° |
| Closest distance between its orbit and Earth's (MOID) | 1.78 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Peter
- (2382) Nonie
- (4314) Dervan
- (4507) Petercollins
- (5153) Gierasch
- (7527) Marples
- (7925) Shelus
- (8086) Peterthomas
- (8160) Petererwin
- (8280) Petergruber
- (8395) Rembaut
- (9207) Petersmith
- (9269) Peterolufemi
All asteroids named after someone called Peter
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
More named asteroids discovered by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T.
- (1743) Schmidt
- (1744) Harriet
- (1776) Kuiper
- (1777) Gehrels
- (1778) Alfven
- (1795) Woltjer
- (1808) Bellerophon
- (1809) Prometheus
- (1810) Epimetheus
- (1811) Bruwer
- (1812) Gilgamesh
- (1813) Imhotep
← (9696) Jaffe · (9698) Idzerda →