(6641) Bobross Main-belt Asteroid
Discovered on 29 July 1990 by H. E. Holt at Palomar.
Robert Ross (b. 1920) has devoted his life to the Muscular Dystrophy Association for almost 50 years. Now senior vice president and executive director, Ross has built the MDA into a world-famous organization funding research and opening new avenues for the care of patients and their families.Naming citation (20010705/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Bobross is today
Seen from above the solar system on 2026-10-14: Bobross is 3.05 au from the Sun and 3.81 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6641 |
| Provisional designation | 1990 OK2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.11 km (#8,770 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.273 |
| Rotation period | 5.90 hours |
| Absolute magnitude (H) | 13.4 |
| Orbital period | 4.63 years |
| Semi-major axis | 2.78 au |
| Perihelion – aphelion | 2.25 – 3.30 au |
| Eccentricity | 0.189 |
| Inclination | 4.88° |
| Closest distance between its orbit and Earth's (MOID) | 1.26 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Robert
- (1955) McMath
- (3514) Hooke
- (3875) Staehle
- (4564) Clayton
- (4809) Robertball
- (5109) Robertmiller
- (5308) Hutchison
- (5477) Holmes
- (5585) Parks
- (5636) Jacobson
- (5739) Robertburns
- (5817) Robertfrazer
All asteroids named after someone called Robert
Also discovered on 29 July 1990
More named asteroids discovered by H. E. Holt
- (4502) Elizabethann
- (4642) Murchie
- (4643) Cisneros
- (4711) Kathy
- (4745) Nancymarie
- (4955) Gold
- (4958) Wellnitz
- (5034) Joeharrington
- (5132) Maynard
- (5134) Ebilson
- (5185) Alerossi
- (5235) Jean-Loup
← (6640) Falorni · (6642) Henze →