(31475) Robbacchus Main-belt Asteroid
Discovered on 10 February 1999 by LINEAR at Socorro.
Robert M. Bacchus (b. 1996) was awarded second place in the 2014 Intel International Science and Engineering Fair for his medicine and health sciences project. He attends the Lincoln Park Academy, Fort Pierce, Florida, U.S.A.Naming citation (MPC batch dated 2015-07-02), IAU / Minor Planet Center, via NASA/JPL
Where Robbacchus is today
Seen from above the solar system on 2026-10-14: Robbacchus is 2.34 au from the Sun and 3.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31475 |
| Provisional designation | 1999 CH42 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.06 km (#15,063 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.327 |
| Absolute magnitude (H) | 14.91 |
| Orbital period | 3.46 years |
| Semi-major axis | 2.29 au |
| Perihelion – aphelion | 2.01 – 2.56 au |
| Eccentricity | 0.120 |
| Inclination | 6.01° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Robert
- (1955) McMath
- (3514) Hooke
- (3875) Staehle
- (4564) Clayton
- (4809) Robertball
- (5109) Robertmiller
- (5308) Hutchison
- (5477) Holmes
- (5585) Parks
- (5636) Jacobson
- (5739) Robertburns
- (5817) Robertfrazer
All asteroids named after someone called Robert
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