(2145) Blaauw Outer Main-belt Asteroid
Discovered on 24 October 1976 by R. M. West at La Silla.
Where Blaauw is today
Seen from above the solar system on 2026-10-14: Blaauw is 3.53 au from the Sun and 2.77 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2145 |
| Provisional designation | 1976 UF |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 40.5 km (#958 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0510 |
| Rotation period | 12.1 hours |
| Absolute magnitude (H) | 11.02 |
| Orbital period | 5.76 years |
| Semi-major axis | 3.21 au |
| Perihelion – aphelion | 2.88 – 3.55 au |
| Eccentricity | 0.103 |
| Inclination | 15.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.94 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 24 October 1976
- (2052) Tamriko
- (2053) Nuki
- (2115) Irakli
- (2116) Mtskheta
- (2146) Stentor
- (2148) Epeios
- (2187) La Silla
- (2935) Naerum
- (10668) Plansos