(11216) Billhubbard Main-belt Asteroid
Discovered on 8 May 1999 by CSS at Catalina.
William B. Hubbard (b. 1940) is a planetary scientist studying interiors and atmospheres at the Lunar and Planetary Laboratory of the University of Arizona, where he was also director during 1977--1981. His studies include the structure and evolution of Jupiter, Saturn and extrasolar giant planets.Naming citation (20100923/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Billhubbard is today
Seen from above the solar system on 2026-10-14: Billhubbard is 2.61 au from the Sun and 3.48 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11216 |
| Provisional designation | 1999 JG1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.21 km (#14,692 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.299 |
| Rotation period | 4.13 hours |
| Absolute magnitude (H) | 14.85 |
| Orbital period | 3.39 years |
| Semi-major axis | 2.26 au |
| Perihelion – aphelion | 1.90 – 2.61 au |
| Eccentricity | 0.159 |
| Inclination | 2.08° |
| Closest distance between its orbit and Earth's (MOID) | 0.906 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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