Asteroid 531277 2012 MM11
531277 2012 MM11 is a near-Earth asteroid roughly 346 m across, about the size of a stadium. Its closest recorded pass was on 9 Dec 1975 at 6.1 lunar distances.
Estimated size
346 m
about the size of a stadium
Closest pass on record
6.14 LD
9 Dec 1975
Speed relative to Earth
17.1 km/s
Brightness (H)
20.3
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.