(15212) Yaroslavl' Main-belt Asteroid
Discovered on 17 November 1979 by L. I. Chernykh at Nauchnyj.
Founded in 1010, Yaroslavlʹ was the capital of an independent principality, incorporated into the Moscow principality in 1463. During the Polish occupation of Moscow in 1612 it was Russia's de facto capital. The historical center of Yaroslavlʹ has been included in the UNESCO list of World Heritage Sites.Naming citation (WGSBN Bull. 6, #10, 6), IAU / Minor Planet Center, via NASA/JPL
Where Yaroslavl' is today
Seen from above the solar system on 2026-10-14: Yaroslavl' is 2.45 au from the Sun and 2.54 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15212 |
| Provisional designation | 1979 WY3 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.36 |
| Orbital period | 4.66 years |
| Semi-major axis | 2.79 au |
| Perihelion – aphelion | 2.41 – 3.17 au |
| Eccentricity | 0.137 |
| Inclination | 10.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.42 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.