Near-Earth Object
2025 YB1
NASA ID: 54568221
2025 YB1 will pass Earth on 24 December 2026 at a distance of 48.02 lunar distances (LD) - about 18,459,411 km - travelling at 41,929 km/h. Its estimated diameter is between 28 and 63 metres, roughly the size of a football pitch (around 105 m long). NASA does not classify it as potentially hazardous.
Close Approach Date
24 December 2026
In 186 days
Miss Distance
48.02 LD
18,459,411 km
48 times the Moon's distance from Earth
Velocity
41,929 km/h
1.5 times the orbital speed of the International Space Station
Est. Diameter
28–63 m
Absolute Magnitude
H = 24.88
The brightness measure astronomers use to estimate size
Hazard Classification
Not Hazardous
The real orbit in 3D
The actual path of 2025 YB1 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 2025 YB1 to Earth between 1921 and 2025, 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 →
