(25943) Billahearn Main-belt Asteroid
Discovered on 2 March 2001 by LONEOS at Anderson Mesa.
William “Bill” Ahearn (b. 1946) first visited Lowell Observatory as a teenager. He has been a supporter of astronomy and astronomy education ever since. He and his wife, Susan, have supported Lowell Observatory's research and education for twenty-six years.Naming citation (MPC batch dated 2018-10-26), IAU / Minor Planet Center, via NASA/JPL
Where Billahearn is today
Seen from above the solar system on 2026-10-14: Billahearn is 3.05 au from the Sun and 2.06 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 25943 |
| Provisional designation | 2001 EL10 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.7 |
| Orbital period | 5.63 years |
| Semi-major axis | 3.17 au |
| Perihelion – aphelion | 2.96 – 3.37 au |
| Eccentricity | 0.0647 |
| Inclination | 14.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.97 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 2 March 2001
- (25940) Mikeschottland
- (25941) Susanahearn
- (25942) Walborn
- (25944) Charlesross
- (25945) Moreadalleore
- (46076) Robertschottland
- (46083) Aaronkingery
- (77138) Puiching