(31231) Uthmann Main-belt Asteroid
Discovered on 1 February 1998 by Kandler, J., Lehmann, G. at Drebach.
Barbara Uthmann (1514-1575) is said to have introduced the art of making lace into the Erzgebirge mountains in Saxony. After her husband's death in 1553, she successfully continued to manage his businesses and established a braid production, thus helping poor miner families to a new way of earning money.Naming citation (20030501/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Uthmann is today
Seen from above the solar system on 2026-10-14: Uthmann is 2.03 au from the Sun and 1.87 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31231 |
| Provisional designation | 1998 CA |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.95 km (#9,013 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0620 |
| Rotation period | 16.9 hours |
| Absolute magnitude (H) | 14.73 |
| Orbital period | 4.14 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 1.98 – 3.18 au |
| Eccentricity | 0.233 |
| Inclination | 9.37° |
| Closest distance between its orbit and Earth's (MOID) | 0.995 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Barbara
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- (6816) Barbcohen
- (7294) Barbaraakey
- (10978) Barbchen
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- (14291) Savereide
- (15056) Barbaradixon
- (16102) Barshannon
- (16273) Oneill
- (19982) Barbaradoore
- (20555) Jennings
- (23055) Barbjewett
All asteroids named after someone called Barbara