(3745) Petaev Main-belt Asteroid
Discovered on 23 September 1949 by K. Reinmuth at Heidelberg.
Where Petaev is today
Seen from above the solar system on 2026-10-14: Petaev is 2.95 au from the Sun and 3.31 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3745 |
| Provisional designation | 1949 SF |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.9 km (#4,617 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0500 |
| Absolute magnitude (H) | 14.22 |
| Orbital period | 3.79 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 1.83 – 3.03 au |
| Eccentricity | 0.246 |
| Inclination | 9.02° |
| Closest distance between its orbit and Earth's (MOID) | 0.829 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.