Asteroid 226554 2003 WR21
226554 2003 WR21 is a near-Earth asteroid roughly 482 m across, about the size of a small town. Its closest recorded pass was on 25 Jun 1972 at 11.2 lunar distances.
Estimated size
482 m
about the size of a small town
Closest pass on record
11.20 LD
25 Jun 1972
Speed relative to Earth
9.3 km/s
Brightness (H)
19.62
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.