(121103) Ericneilsen Main-belt Asteroid
Discovered on 20 March 1999 by Sloan Digital Sky Survey at Apache Point.
Eric Neilsen (b. 1970) is an American astronomer and a significant contributor to the Sloan Digital Sky Survey.Naming citation (20110517/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ericneilsen is today
Seen from above the solar system on 2026-10-14: Ericneilsen is 3.31 au from the Sun and 4.10 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 121103 |
| Provisional designation | 1999 FX73 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.54 km (#13,863 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.107 |
| Rotation period | 17.2 hours |
| Absolute magnitude (H) | 15.39 |
| Orbital period | 4.68 years |
| Semi-major axis | 2.80 au |
| Perihelion – aphelion | 2.29 – 3.31 au |
| Eccentricity | 0.183 |
| Inclination | 18.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.29 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Eric
- (2181) Fogelin
- (5057) Weeks
- (5705) Ericsterken
- (8804) Eliason
- (9620) Ericidle
- (10119) Remarque
- (10841) Ericforbes
- (13858) Ericchristensen
- (13911) Stempels
- (14544) Ericjones
- (15628) Gonzales
- (15929) Ericlinton
All asteroids named after someone called Eric
Also discovered on 20 March 1999
- (10943) Brunier
- (11207) Black
- (17050) Weiskopf
- (17051) Oflynn
- (17052) Senthilvel
- (17053) Ashayshah
- (17910) Munyan
- (17911) Robertsnyder
- (17913) Strode
- (17914) Joannelee
- (22780) McAlpine
- (28343) Florcalandra