(22410) Grinspoon Main-belt Asteroid
Discovered on 29 September 1995 by Spacewatch at Kitt Peak.
David Grinspoon (b. 1959), an astrobiologist at the Southwest Research Institute, won the 2006 Carl Sagan Medal and wrote the award-winning book Lonely Planets. Name suggested by R. Jedicke and P. Jedicke.Naming citation (MPC batch dated 2017-03-12), IAU / Minor Planet Center, via NASA/JPL
Where Grinspoon is today
Seen from above the solar system on 2026-10-14: Grinspoon is 2.57 au from the Sun and 3.53 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22410 |
| Provisional designation | 1995 SS52 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.76 |
| Orbital period | 4.12 years |
| Semi-major axis | 2.57 au |
| Perihelion – aphelion | 2.51 – 2.63 au |
| Eccentricity | 0.0243 |
| Inclination | 3.53° |
| Closest distance between its orbit and Earth's (MOID) | 1.52 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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