(12163) Manilius Main-belt Asteroid
Discovered on 30 September 1973 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Roman poet and astrologer Marcus Manilius (1st century A.D.) wrote the comprehensive astronomical-astrological poem Astronomica. The five-volume work was dedicated to Tiberius and contains a mythological description of the constellations and the Milky Way. The name was suggested by R. H. van Gent.Naming citation (20100726/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Manilius is today
Seen from above the solar system on 2026-10-14: Manilius is 2.68 au from the Sun and 3.58 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12163 |
| Provisional designation | 3013 T-2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.86 km (#13,074 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.271 |
| Absolute magnitude (H) | 14.36 |
| Orbital period | 4.27 years |
| Semi-major axis | 2.63 au |
| Perihelion – aphelion | 2.44 – 2.82 au |
| Eccentricity | 0.0711 |
| Inclination | 4.39° |
| Closest distance between its orbit and Earth's (MOID) | 1.46 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Marcus
All asteroids named after someone called Marcus
Also discovered on 30 September 1973
- (4587) Rees
- (4848) Tutenchamun
- (5071) Schoenmaker
- (5196) Bustelli
- (5342) Le Poole
- (5885) Apeldoorn
- (6146) Adamkrafft
- (6258) Rodin
- (6259) Maillol
- (7265) Edithmuller
- (7316) Hajdu
- (8125) Tyndareus