Asteroid 2025 QB21
2025 QB21 is a near-Earth asteroid roughly 21 m across, about the size of a house. Its closest recorded pass was on 3 Sept 1962 at 4.6 lunar distances.
Estimated size
21 m
about the size of a house
Closest pass on record
4.64 LD
3 Sept 1962
Speed relative to Earth
5.9 km/s
Brightness (H)
26.43
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.