Near-Earth Object
2026 CB
NASA ID: 54580775
2026 CB will pass Earth on 7 August 2026 at a distance of 24.41 lunar distances (LD) - about 9,383,327 km - travelling at 22,306 km/h. Its estimated diameter is between 10 and 22 metres, roughly the size of a double-decker bus (around 11 m long). NASA does not classify it as potentially hazardous.
Close Approach Date
7 August 2026
In 48 days
Miss Distance
24.41 LD
9,383,327 km
24 times the Moon's distance from Earth
Velocity
22,306 km/h
0.8 times the orbital speed of the International Space Station
Est. Diameter
10–22 m
Absolute Magnitude
H = 27.12
The brightness measure astronomers use to estimate size
Hazard Classification
Not Hazardous
The real orbit in 3D
The actual path of 2026 CB 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.
Every recorded pass
Each dot is one close approach of 2026 CB to Earth between 1909 and 2082, from JPL's records. Lower means closer: a dot under the dashed line passed nearer than the Moon. The orange dot is the approach on this page.
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 →
