(33004) Dianesipiera Main-belt Asteroid
Discovered on 2 March 1997 by P. G. Comba at Prescott.
Diane M. Sipiera (b. 1955) is the executive director of the Planetary Studies Foundation, co-author of children's books on space exploration and astronomy, and operator of the Star-Lab Planetarium. The name was suggested by H. Windolf.Naming citation (20060413/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Dianesipiera is today
Seen from above the solar system on 2026-10-14: Dianesipiera is 2.89 au from the Sun and 3.17 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 33004 |
| Provisional designation | 1997 EP |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.78 km (#9,257 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.121 |
| Absolute magnitude (H) | 14.34 |
| Orbital period | 5.52 years |
| Semi-major axis | 3.12 au |
| Perihelion – aphelion | 2.89 – 3.35 au |
| Eccentricity | 0.0742 |
| Inclination | 11.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.88 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Diane
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- (22171) Choi
- (28331) Dianeberard
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All asteroids named after someone called Diane