Asteroid 2004 RJ9
2004 RJ9 is a near-Earth asteroid roughly 461 m across, about the size of a small town. Its closest recorded pass was on 29 Jul 1911 at 7.1 lunar distances.
Estimated size
461 m
about the size of a small town
Closest pass on record
7.14 LD
29 Jul 1911
Speed relative to Earth
15.8 km/s
Brightness (H)
19.68
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.