These objects are tracked and are NOT on a collision course with Earth. “If it hits” is a hypothetical to show scale.
Near-Earth object · discovered 2025-07-04
2025 OW (2025 OW)
44
watch score
How bigiEstimated from brightness and an assumed albedo. Radar or a spacecraft visit would tighten it.
70m
range 52–117 m
How closeiLD = lunar distance (~384,400 km). The closest the object's path brings it to Earth's centre.
16.0LD
range ≈6,166,130 km
How fastiVelocity relative to Earth at closest approach.
20.0849631150226km/s
range 20.0849631150226–20.0849631150226 km/s
CompositioniInferred from spectral type. Drives whether an impact would airburst or reach the ground.
Stony
range Stony (assumed)
If it hit — a scale comparison, not a forecast
How big is that, really?
Bus12 m
20-storey tower65 m
This object70 m
Stadium250 m
Eiffel Tower330 m
Impact energyiKinetic energy converted to TNT-equivalent, with the size and speed ranges propagated through.
34 Mt
range 14 Mt – 159 Mt
Where that sits
Hiroshima
Chelyabinsk
Tunguska
Tsar Bomba
At this size and speed it would most likely airburst high in the atmosphere — energy between Tunguska 1908 (~12 Mt) and Tsar Bomba (~50 Mt), shown as a bracket, not a single number.