Asteroid 2017 HW4
2017 HW4 is a near-Earth asteroid roughly 156 m across, about the size of a stadium. Its closest recorded pass was on 28 Apr 1960 at 11.3 lunar distances.
Estimated size
156 m
about the size of a stadium
Closest pass on record
11.33 LD
28 Apr 1960
Speed relative to Earth
13.4 km/s
Brightness (H)
22.03
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.