Burj Khalifa-sized asteroid 153814
0.6 LD · ~932 m
Drawn to scale. A person would be smaller than a pixel here.
153814 passes inside the Moon's orbit, about 248,668 km from Earth's centre (0.6× the distance to the Moon). It is about 932 m across (measured). If a rock this size hit Earth, the result would be devastation on a national to continental scale, with global climate effects possible depending on the impact site. Known asteroids this size pass inside the Moon's orbit about once every 40 years. This is a routine close approach with no known impact risk.
For the background, read Impact risk in Asteroids.
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