Asteroid 2017 BR31
2017 BR31 is a near-Earth asteroid roughly 209 m across, about the size of a stadium. Its closest recorded pass was on 4 Dec 1994 at 10.5 lunar distances.
Estimated size
209 m
about the size of a stadium
Closest pass on record
10.51 LD
4 Dec 1994
Speed relative to Earth
9.1 km/s
Brightness (H)
21.4
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.