(8621) Jimparsons Main-belt Asteroid
Discovered on 1 March 1981 by S. J. Bus at Siding Spring.
American actor James Joseph “Jim” Parsons (b. 1973) portrays the fictional Caltech theoretical physicist Dr. Sheldon Lee Cooper in the television sitcom The Big Bang Theory.Naming citation (WGSBN Bull. 3, #12, 12), IAU / Minor Planet Center, via NASA/JPL
Where Jimparsons is today
Seen from above the solar system on 2026-10-14: Jimparsons is 2.88 au from the Sun and 3.77 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8621 |
| Provisional designation | 1981 EK7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.17 km (#5,641 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.110 |
| Absolute magnitude (H) | 13.46 |
| Orbital period | 5.55 years |
| Semi-major axis | 3.13 au |
| Perihelion – aphelion | 2.62 – 3.65 au |
| Eccentricity | 0.165 |
| Inclination | 4.33° |
| Closest distance between its orbit and Earth's (MOID) | 1.61 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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