(640) Brambilla Main-belt Asteroid
Discovered on 29 August 1907 by A. Kopff at Heidelberg.
Where Brambilla is today
Seen from above the solar system on 2026-10-14: Brambilla is 3.34 au from the Sun and 2.44 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 640 |
| Provisional designation | A907 QA |
| Orbit class | Main-belt Asteroid |
| Diameter | 62.7 km (#552 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0550 |
| Rotation period | 7.77 hours |
| Spectral type | G |
| Absolute magnitude (H) | 9.32 |
| Orbital period | 5.62 years |
| Semi-major axis | 3.16 au |
| Perihelion – aphelion | 2.91 – 3.41 au |
| Eccentricity | 0.0784 |
| Inclination | 13.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.90 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by A. Kopff
- (579) Sidonia
- (582) Olympia
- (584) Semiramis
- (585) Bilkis
- (589) Croatia
- (591) Irmgard
- (593) Titania
- (595) Polyxena
- (596) Scheila
- (606) Brangane
- (607) Jenny
- (608) Adolfine
← (639) Latona · (641) Agnes →