(91275) Billsmith Main-belt Asteroid
Discovered on 13 March 1999 by R. A. Tucker at Goodricke-Pigott.
William S. (Bill) Smith Jr. (b. 1947) was for 15 years president of the Association of Universities for Research in Astronomy (AURA), which operates NSO, NOAO, STScI, Gemini and LSST. Bill was a strong advocate for diversity in the astronomical community.Naming citation (MPC batch dated 2015-02-03), IAU / Minor Planet Center, via NASA/JPL
Where Billsmith is today
Seen from above the solar system on 2026-10-14: Billsmith is 2.73 au from the Sun and 1.97 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 91275 |
| Provisional designation | 1999 EW5 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.6 |
| Orbital period | 3.69 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 2.05 – 2.73 au |
| Eccentricity | 0.143 |
| Inclination | 2.92° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 13 March 1999
- (11201) Talich
- (11408) Zahradnik
- (17025) Pilachowski
- (28340) Yukihiro
- (28341) Bingaman
- (31556) Shatner
- (31557) Holleybakich
- (53252) Sardegna
- (53253) Zeiler
- (101721) Emanuelfritsch
- (101723) Finger