(189035) Michaelsummers Main-belt Asteroid
Discovered on 5 February 2000 by M. W. Buie at Kitt Peak.
Michael E. Summers (b. 1954) is a professor of planetary sciences and astronomy at George Mason University. He served as a co-investigator and as a Deputy Atmospheres Team Lead for the New Horizons Mission to Pluto.Naming citation (MPC batch dated 2018-05-29), IAU / Minor Planet Center, via NASA/JPL
Where Michaelsummers is today
Seen from above the solar system on 2026-10-14: Michaelsummers is 2.72 au from the Sun and 1.99 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 189035 |
| Provisional designation | 2000 CX109 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.58 km (#8,147 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0710 |
| Absolute magnitude (H) | 14.77 |
| Orbital period | 5.66 years |
| Semi-major axis | 3.18 au |
| Perihelion – aphelion | 2.56 – 3.79 au |
| Eccentricity | 0.193 |
| Inclination | 26.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.58 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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