Asteroid 494999 2010 JU39
494999 2010 JU39 is a near-Earth asteroid roughly 458 m across, about the size of a small town. Its closest recorded pass was on 25 Jun 1923 at 16.7 lunar distances.
Estimated size
458 m
about the size of a small town
Closest pass on record
16.68 LD
25 Jun 1923
Speed relative to Earth
24.0 km/s
Brightness (H)
19.69
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.