Asteroid 484976 2009 UN3
484976 2009 UN3 is a near-Earth asteroid roughly 786 m across, about the size of a small town. Its closest recorded pass was on 10 Feb 1978 at 7.8 lunar distances.
Estimated size
786 m
about the size of a small town
Closest pass on record
7.76 LD
10 Feb 1978
Speed relative to Earth
22.8 km/s
Brightness (H)
18.52
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.