(10172) Humphreys Main-belt Asteroid
Discovered on 31 March 1995 by Spacewatch at Kitt Peak.
Minnesota astronomer Roberta M. Humphreys (b. 1944) is a leader in studies of physical properties of massive stars in the Milky Way and in nearby galaxies. She headed the Automated Plate Scanner Project to digitize the Palomar Sky Survey and make a publicly available database of a billion stars and several million galaxies.Naming citation (20001111/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Humphreys is today
Seen from above the solar system on 2026-10-14: Humphreys is 2.89 au from the Sun and 3.68 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10172 |
| Provisional designation | 1995 FW19 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.76 km (#5,244 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0700 |
| Absolute magnitude (H) | 13.79 |
| Orbital period | 4.54 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.58 – 2.91 au |
| Eccentricity | 0.0595 |
| Inclination | 5.44° |
| Closest distance between its orbit and Earth's (MOID) | 1.57 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Roberta
- (13693) Bondar
- (21391) Rotanner
- (25374) Harbrucker
- (26499) Robertazabotti
- (31190) Toussaint
- (155997) Robertaciani
- (471301) Robertajmolson
All asteroids named after someone called Roberta