(8630) Billprady Main-belt Asteroid
Discovered on 2 March 1981 by S. J. Bus at Siding Spring.
William Scott Prady (b. 1960) is an American television writer and producer. He is co-creator and executive producer of the situation comedy The Big Bang Theory.Naming citation (WGSBN Bull. 3, #12, 12), IAU / Minor Planet Center, via NASA/JPL
Where Billprady is today
Seen from above the solar system on 2026-10-14: Billprady is 2.03 au from the Sun and 2.44 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8630 |
| Provisional designation | 1981 EY35 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.56 km (#13,789 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.379 |
| Rotation period | 79.7 hours |
| Absolute magnitude (H) | 14.18 |
| Orbital period | 3.45 years |
| Semi-major axis | 2.28 au |
| Perihelion – aphelion | 1.96 – 2.60 au |
| Eccentricity | 0.141 |
| Inclination | 3.88° |
| Closest distance between its orbit and Earth's (MOID) | 0.953 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called William
Also discovered on 2 March 1981
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