Assertion: asteroid belt's asteroid | /r/HasProperty | some 11 to 81 kilometres
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Source sentences:
text: The Chicxulub impactor ( CHEEK-shə-loob), also known as the K/Pg impactor and (more speculatively) as the Chicxulub asteroid, was an asteroid or other celestial body some 11 to 81 kilometres (7 to 50 mi) in diameter and having a mass between 1.0×1015 and 4.6×1017 kg, which struck the Earth at a velocity of roughly 20 kilometers per second at an angle of just under 60 degrees (although originally thought to be shallower) at the end of the Cretaceous period, 66 million years ago, creating the Chicxulub crater.
text: It was formed when a large asteroid or comet about 11 to 81 kilometers (6.8 to 50.3 miles) in diameter, known as the Chicxulub impactor, struck the Earth.