(38431) Jeffbeck Main-belt Asteroid
Discovered on 8 September 1999 by CSS at Catalina.
Geoffrey Arnold (Jeff) Beck (b. 1944) is an English guitarist and musician. Since the 1960s he has been widely recognized for his innovative sound and for his collaborations across a broad range of musical genres including rock, jazz fusion, blues, and instrumental. Beck is considered one of the most influential lead guitarists in history.Naming citation (WGSBN Bull. 2, #7, 10), IAU / Minor Planet Center, via NASA/JPL
Where Jeffbeck is today
Seen from above the solar system on 2026-10-14: Jeffbeck is 2.52 au from the Sun and 1.53 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 38431 |
| Provisional designation | 1999 RR232 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.69 km (#9,407 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.114 |
| Absolute magnitude (H) | 14.63 |
| Orbital period | 4.44 years |
| Semi-major axis | 2.70 au |
| Perihelion – aphelion | 2.36 – 3.05 au |
| Eccentricity | 0.128 |
| Inclination | 9.97° |
| Closest distance between its orbit and Earth's (MOID) | 1.36 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Geoffrey
- (4209) Briggs
- (10289) Geoffperry
- (11753) Geoffburbidge
- (13018) Geoffjames
- (21714) Geoffreywoo
- (30090) Grossano
- (132904) Notkin
- (160215) Haines-Stiles
All asteroids named after someone called Geoffrey
Also discovered on 8 September 1999
- (12580) Antonini
- (12581) Rovinj
- (13817) Genobechetti
- (16066) Richardbressler
- (16070) Charops
- (19629) Serra
- (19694) Dunkelman
- (19695) Billnye
- (20544) Kimhansell
- (20545) Karenhowell
- (20546) Michaelfruhauf
- (20547) Michimani