(216451) Irsha Main-belt Asteroid
Discovered on 19 April 2009 by Andrushivka at Andrushivka.
Located on the Irsha river, the ancient city of Malyn in Ukraine is noted for the museum of Nikolaj Miklukho-Maklaj (1846-1888), a prominent ethnologist, biologist, and anthropologist. His place of birth is not definitely known, but the city has been considered a possibility.Naming citation (20091202/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Irsha is today
Seen from above the solar system on 2026-10-14: Irsha is 2.10 au from the Sun and 2.55 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 216451 |
| Provisional designation | 2009 HP12 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 17.26 |
| Orbital period | 3.62 years |
| Semi-major axis | 2.36 au |
| Perihelion – aphelion | 1.96 – 2.75 au |
| Eccentricity | 0.167 |
| Inclination | 5.99° |
| Closest distance between its orbit and Earth's (MOID) | 0.971 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.