(19640) Ethanroth Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
Ethan Michael Roth (b. 1992) is a finalist in the 2003 Discovery Channel Young Scientist Challenge, a middle school science competition, for his behavioral science project. He attends the Barstow School, Kansas City, Missouri.Naming citation (20031010/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ethanroth is today
Seen from above the solar system on 2026-10-14: Ethanroth is 3.02 au from the Sun and 2.48 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19640 |
| Provisional designation | 1999 RP89 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.85 km (#10,919 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.207 |
| Rotation period | 600 hours |
| Absolute magnitude (H) | 14.3 |
| Orbital period | 4.58 years |
| Semi-major axis | 2.76 au |
| Perihelion – aphelion | 2.38 – 3.14 au |
| Eccentricity | 0.138 |
| Inclination | 3.44° |
| Closest distance between its orbit and Earth's (MOID) | 1.40 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ethan
All asteroids named after someone called Ethan
Also discovered on 7 September 1999
- (12126) Chersidamas
- (12577) Samra
- (12578) Bensaur
- (12585) Katschwarz
- (12586) Juliaspeyer
- (12588) Arseneau
- (12604) Lisatate
- (12924) Madisonicole
- (13818) Ullery
- (14214) Hirsch
- (15503) Estradioto
- (16067) Brandonfan