(13125) Tobolsk Main-belt Asteroid
Discovered on 10 August 1994 by E. W. Elst at La Silla.
Tobolsk is a Russian city in western Siberia, at the confluence of the Irtysh and Tobol rivers. Founded in 1587, it became a major center of early Russian colonization in Siberia. In 1761, astronomer Chappe d'Auteroche successfully observed the transit of Venus there.Naming citation (20050407/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tobolsk is today
Seen from above the solar system on 2026-10-14: Tobolsk is 2.67 au from the Sun and 2.39 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13125 |
| Provisional designation | 1994 PK5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.86 km (#5,189 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0710 |
| Absolute magnitude (H) | 13.68 |
| Orbital period | 4.40 years |
| Semi-major axis | 2.68 au |
| Perihelion – aphelion | 2.67 – 2.70 au |
| Eccentricity | 0.00694 |
| Inclination | 9.17° |
| Closest distance between its orbit and Earth's (MOID) | 1.68 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 10 August 1994
- (6836) Paranal
- (7661) Reincken
- (7960) Condorcet
- (8205) Van Dijck
- (8890) Montaigne
- (9079) Gesner
- (9205) Eddywally
- (9392) Cavaillon
- (9393) Apta
- (9394) Manosque
- (9395) Saint Michel
- (9638) Fuchs
More named asteroids discovered by E. W. Elst
- (3631) Sigyn
- (3784) Chopin
- (3870) Mayre
- (3903) Kliment Ohridski
- (3910) Liszt
- (3912) Troja
- (3918) Brel
- (4038) Kristina
- (4226) Damiaan
- (4342) Freud
- (4344) Buxtehude
- (4345) Rachmaninoff
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