(12588) Arseneau Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
Ross Arseneau mentored a finalist in the 2019 Regeneron Science Talent Search, a science competition for high school seniors. He teaches at the Detroit Country Day School, Beverly Hills, Michigan.Naming citation (WGSBN Bull. 3, #8, 7), IAU / Minor Planet Center, via NASA/JPL
Where Arseneau is today
Seen from above the solar system on 2026-10-14: Arseneau is 2.17 au from the Sun and 1.77 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12588 |
| Provisional designation | 1999 RR98 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.46 km (#9,770 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0940 |
| Rotation period | 21.0 hours |
| Absolute magnitude (H) | 14.78 |
| Orbital period | 3.79 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 1.97 – 2.89 au |
| Eccentricity | 0.190 |
| Inclination | 12.6° |
| Closest distance between its orbit and Earth's (MOID) | 0.971 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ross
All asteroids named after someone called Ross
Also discovered on 7 September 1999
- (12126) Chersidamas
- (12577) Samra
- (12578) Bensaur
- (12585) Katschwarz
- (12586) Juliaspeyer
- (12604) Lisatate
- (12924) Madisonicole
- (13818) Ullery
- (14214) Hirsch
- (15503) Estradioto
- (16067) Brandonfan
- (16068) Citron