Asteroid 311044 2004 BB103
311044 2004 BB103 is a near-Earth asteroid roughly 1.5 km across, mountain-sized. Its closest recorded pass was on 21 Jun 1948 at 10.8 lunar distances.
Estimated size
1.5 km
mountain-sized
Closest pass on record
10.84 LD
21 Jun 1948
Speed relative to Earth
33.4 km/s
Brightness (H)
17.12
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.