Near-Earth Object
2025 CA1
NASA ID: 54518668
2025 CA1 will pass Earth on 6 April 2027 at a distance of 55.78 lunar distances (LD) - about 21,442,651 km - travelling at 29,019 km/h. Its estimated diameter is between 7 and 16 metres, roughly the size of a double-decker bus (around 11 m long). NASA does not classify it as potentially hazardous.
Close Approach Date
6 April 2027
In 289 days
Miss Distance
55.78 LD
21,442,651 km
56 times the Moon's distance from Earth
Velocity
29,019 km/h
1.1 times the orbital speed of the International Space Station
Est. Diameter
7–16 m
Absolute Magnitude
H = 27.86
The brightness measure astronomers use to estimate size
Hazard Classification
Not Hazardous
The real orbit in 3D
The actual path of 2025 CA1 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 →
