Asteroid 4769 Castalia 1989 PB
4769 Castalia 1989 PB is a near-Earth asteroid roughly 1.4 km across, mountain-sized. Its closest recorded pass was on 25 Aug 1989 at 10.5 lunar distances.
Estimated size
1.4 km
mountain-sized
Closest pass on record
10.48 LD
25 Aug 1989
Speed relative to Earth
13.9 km/s
Brightness (H)
17.38
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.