Asteroid 2023 HJ4
2023 HJ4 is a near-Earth asteroid roughly 16 m across, about the size of a house. Its closest recorded pass was on 21 Apr 1917 at 5.0 lunar distances.
Estimated size
16 m
about the size of a house
Closest pass on record
4.98 LD
21 Apr 1917
Speed relative to Earth
11.2 km/s
Brightness (H)
26.96
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.