Near-Earth Object
2023 RG9
NASA ID: 54382898
2023 RG9 will pass Earth on 22 May 2027 at a distance of 136.8 lunar distances (LD) - about 52,585,661 km - travelling at 18,378 km/h. Its estimated diameter is between 19 and 42 metres, roughly the size of a double-decker bus (around 11 m long). NASA does not classify it as potentially hazardous.
Close Approach Date
22 May 2027
In 334 days
Miss Distance
136.8 LD
52,585,661 km
137 times the Moon's distance from Earth
Velocity
18,378 km/h
0.7 times the orbital speed of the International Space Station
Est. Diameter
19–42 m
Absolute Magnitude
H = 25.76
The brightness measure astronomers use to estimate size
Hazard Classification
Not Hazardous
The real orbit in 3D
The actual path of 2023 RG9 around the Sun, computed from JPL orbital elements. Drag to rotate, scroll to zoom, and use the time controls to run the orbit forwards or back.
Size Comparison
Reading the Numbers
- A lunar distance (LD) is the average gap between Earth and the Moon, about 384,400 km. It is the standard yardstick for close approaches. Read more →
- Diameter estimates come from brightness. A dark surface reflects less light than a bright one, so the true size can sit anywhere in the quoted range. Read more →
- Potentially hazardous is a watch-list label based on size and orbital proximity. It does not mean an impact is expected. Read more →
