Asteroid 2021 BW1
2021 BW1 is a near-Earth asteroid roughly 20 m across, about the size of a house. Its closest recorded pass was on 25 Dec 1968 at 2.4 lunar distances.
Estimated size
20 m
about the size of a house
Closest pass on record
2.39 LD
25 Dec 1968
Speed relative to Earth
6.1 km/s
Brightness (H)
26.5
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.