Asteroid 308242 2005 GO21
308242 2005 GO21 is a near-Earth asteroid roughly 2.3 km across, mountain-sized. Its closest recorded pass was on 21 Jun 1912 at 17.6 lunar distances.
Estimated size
2.3 km
mountain-sized
Closest pass on record
17.57 LD
21 Jun 1912
Speed relative to Earth
13.4 km/s
Brightness (H)
16.18
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.