(22282) Dreyer Main-belt Asteroid
Discovered on 11 September 1985 by Copenhagen Observatory at Brorfelde.
John Louis Emil Dreyer (1852–1926) was a Danish astronomer and historian of astronomy. He compiled the New General Catalogue of Nebulae and Clusters of Stars and two supplementary Index Catalogues. He also wrote a biography of Tycho Brahe and two works on the history of astronomy.Naming citation (WGSBN Bull. 6, #16, 7), IAU / Minor Planet Center, via NASA/JPL
Where Dreyer is today
Seen from above the solar system on 2026-10-14: Dreyer is 2.28 au from the Sun and 1.43 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22282 |
| Provisional designation | 1985 RA |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.89 km (#9,088 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.267 |
| Rotation period | 273 hours |
| Absolute magnitude (H) | 13.5 |
| Orbital period | 4.52 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.26 – 3.21 au |
| Eccentricity | 0.172 |
| Inclination | 7.73° |
| Closest distance between its orbit and Earth's (MOID) | 1.28 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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