Asteroid 2015 BK4
2015 BK4 is a near-Earth asteroid roughly 42 m across, about the size of a football pitch. Its closest recorded pass was on 12 May 1963 at 3.4 lunar distances.
Estimated size
42 m
about the size of a football pitch
Closest pass on record
3.41 LD
12 May 1963
Speed relative to Earth
10.7 km/s
Brightness (H)
24.9
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.