(1639) Bower Main-belt Asteroid
Discovered on 12 September 1951 by S. J. Arend at Uccle.
Where Bower is today
Seen from above the solar system on 2026-10-14: Bower is 2.23 au from the Sun and 2.26 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1639 |
| Provisional designation | 1951 RB |
| Orbit class | Main-belt Asteroid |
| Diameter | 35.7 km (#1,126 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0310 |
| Rotation period | 22.2 hours |
| Spectral type | C |
| Absolute magnitude (H) | 11.17 |
| Orbital period | 4.13 years |
| Semi-major axis | 2.57 au |
| Perihelion – aphelion | 2.19 – 2.95 au |
| Eccentricity | 0.148 |
| Inclination | 8.44° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by S. J. Arend
- (1127) Mimi
- (1171) Rusthawelia
- (1262) Sniadeckia
- (1263) Varsavia
- (1281) Jeanne
- (1286) Banachiewicza
- (1287) Lorcia
- (1313) Berna
- (1314) Paula
- (1315) Bronislawa
- (1348) Michel
- (1352) Wawel
← (1638) Ruanda · (1640) Nemo →