(22294) Simmons Main-belt Asteroid
Discovered on 28 September 1989 by Shoemaker, C. S., Shoemaker, E. M. at Palomar.
Michael S. Simmons (b. 1949) dedicated time and effort to organizing the Palomar Observatory's 1.2-m Schmidt Oschin Telescope plate archive. Among his many significant and varied astronomy outreach activities are several trips to Iran to promote friendship and amateur astronomy.Naming citation (20030318/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Simmons is today
Seen from above the solar system on 2026-10-14: Simmons is 2.47 au from the Sun and 3.00 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22294 |
| Provisional designation | 1989 SC8 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.12 |
| Orbital period | 3.45 years |
| Semi-major axis | 2.28 au |
| Perihelion – aphelion | 1.82 – 2.74 au |
| Eccentricity | 0.202 |
| Inclination | 3.81° |
| Closest distance between its orbit and Earth's (MOID) | 0.830 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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