Asteroid 2021 GX9
2021 GX9 is on NASA's Sentry list of objects that cannot yet be fully ruled out as future impactors.
Estimated size
29 m
about the size of a house
Closest pass on record
—
Speed relative to Earth
16.8 km/s
Brightness (H)
25.34
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.
No past close approaches in our records.