Asteroid 2007 JB21
2007 JB21 is a near-Earth asteroid roughly 33 m across, about the size of a house. Its closest recorded pass was on 9 May 1910 at 0.5 lunar distances.
Estimated size
33 m
about the size of a house
Closest pass on record
0.45 LD
9 May 1910
Speed relative to Earth
7.7 km/s
Brightness (H)
25.4
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.