Asteroid 448721 2011 BN24
448721 2011 BN24 is a near-Earth asteroid roughly 254 m across, about the size of a stadium. Its closest recorded pass was on 17 Apr 1923 at 6.2 lunar distances.
Estimated size
254 m
about the size of a stadium
Closest pass on record
6.15 LD
17 Apr 1923
Speed relative to Earth
10.8 km/s
Brightness (H)
20.97
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.