Asteroid 523654 2011 SR5
523654 2011 SR5 is a near-Earth asteroid roughly 259 m across, about the size of a stadium. Its closest recorded pass was on 22 Sept 1988 at 4.8 lunar distances.
Estimated size
259 m
about the size of a stadium
Closest pass on record
4.78 LD
22 Sept 1988
Speed relative to Earth
26.9 km/s
Brightness (H)
20.93
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.