(11017) Billputnam Main-belt Asteroid
Discovered on 16 January 1983 by E. Bowell at Anderson Mesa.
William L. Putnam (b. 1924) is the Trustee of the Lowell Observatory.Naming citation (20020128/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Billputnam is today
Seen from above the solar system on 2026-10-14: Billputnam is 2.84 au from the Sun and 3.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11017 |
| Provisional designation | 1983 BD |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.0 km (#4,081 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.182 |
| Rotation period | 6.75 hours |
| Absolute magnitude (H) | 12.42 |
| Orbital period | 4.59 years |
| Semi-major axis | 2.76 au |
| Perihelion – aphelion | 2.33 – 3.20 au |
| Eccentricity | 0.157 |
| Inclination | 15.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.38 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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