Asteroid 2021 CU4
2021 CU4 is a near-Earth asteroid roughly 140 m across, about the size of a stadium. Its closest recorded pass was on 3 Aug 1907 at 7.9 lunar distances.
Estimated size
140 m
about the size of a stadium
Closest pass on record
7.86 LD
3 Aug 1907
Speed relative to Earth
13.4 km/s
Brightness (H)
22.26
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.