(27709) Orenburg Main-belt Asteroid
Discovered on 13 February 1988 by E. W. Elst at La Silla.
Established in 1743, Orenburg is a city on the Ural river that served as the frontier fortress between Russia and Kazakhstan.Naming citation (20070601/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Orenburg is today
Seen from above the solar system on 2026-10-14: Orenburg is 3.18 au from the Sun and 3.16 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 27709 |
| Provisional designation | 1988 CU3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.09 km (#6,489 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.205 |
| Rotation period | 4.94 hours |
| Absolute magnitude (H) | 13.2 |
| Orbital period | 5.20 years |
| Semi-major axis | 3.00 au |
| Perihelion – aphelion | 2.80 – 3.20 au |
| Eccentricity | 0.0662 |
| Inclination | 9.34° |
| Closest distance between its orbit and Earth's (MOID) | 1.82 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 13 February 1988
- (3870) Mayre
- (4609) Pizarro
- (4636) Chile
- (4705) Secchi
- (5115) Frimout
- (5956) d'Alembert
- (6036) Weinberg
- (6439) Tirol
- (6598) Modugno
- (6956) Holbach
- (9313) Protea
- (10506) Rydberg