(3924) Birch Main-belt Asteroid
Discovered on 11 February 1977 by Bowell, E., Kowal, C. T. at Palomar.
👶 Birch as a baby name🐶 Birch as a dog name
Where Birch is today
Seen from above the solar system on 2026-10-14: Birch is 2.92 au from the Sun and 3.91 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3924 |
| Provisional designation | 1977 CU |
| Orbit class | Main-belt Asteroid |
| Diameter | 16.8 km (#2,723 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0800 |
| Rotation period | 18.7 hours |
| Absolute magnitude (H) | 12.39 |
| Orbital period | 4.43 years |
| Semi-major axis | 2.70 au |
| Perihelion – aphelion | 2.40 – 3.00 au |
| Eccentricity | 0.112 |
| Inclination | 6.70° |
| Closest distance between its orbit and Earth's (MOID) | 1.42 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.