(7630) Yidumduma Main-belt Asteroid
Discovered on 25 June 1979 by Helin, E. F., Bus, S. J. at Siding Spring.
Bill Yidumduma Harney (b. 1931) is a Senior Elder of the Wardaman Aboriginal people of Australia's Northern Territory. He has shared his traditional astronomical knowledge through film, television, and books, including Dark Sparkers and Four Circles.Naming citation (MPC batch dated 2020-08-07), IAU / Minor Planet Center, via NASA/JPL
Where Yidumduma is today
Seen from above the solar system on 2026-10-14: Yidumduma is 3.04 au from the Sun and 3.80 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7630 |
| Provisional designation | 1979 MR2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.42 km (#8,350 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.205 |
| Absolute magnitude (H) | 13.25 |
| Orbital period | 4.79 years |
| Semi-major axis | 2.84 au |
| Perihelion – aphelion | 2.59 – 3.09 au |
| Eccentricity | 0.0884 |
| Inclination | 1.28° |
| Closest distance between its orbit and Earth's (MOID) | 1.60 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Bill
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- (19695) Billnye
- (20084) Buckmaster
- (21531) Billcollin
- (24495) Degroff
- (24959) Zielenbach
- (27284) Billdunbar
- (48643) Allen-Beach
- (79896) Billhaley
- (80808) Billmason
- (95852) Leatherbarrow
All asteroids named after someone called Bill
Also discovered on 25 June 1979
- (2343) Siding Spring
- (2392) Jonathan Murray
- (2441) Hibbs
- (2618) Coonabarabran
- (2619) Skalnate Pleso
- (2628) Kopal
- (2682) Soromundi
- (2704) Julian Loewe
- (3129) Bonestell
- (3205) Boksenberg
- (3756) Ruscannon
- (3817) Lencarter