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| (137108) 1999 AN10 ： ウィキペディア英語版 |
(137108) 1999 AN10
is an Apollo near-Earth asteroid (NEA) discovered by LINEAR on January 13, 1999.〔
On August 7, 2027, this NEA will pass within (~1 lunar distance) of the Earth.〔〔〔〔 During the close approach, the asteroid should peak at about apparent magnitude 7.3,〔 and will be visible in binoculars.
has a well determined orbit with an observation arc of 58 years.〔 It was found by Andreas Doppler and Arno Gnädig in precovery images from 1955.〔 When only had an observation arc of 123 days, there was a 1 in 10 million chance that it could return on an impact trajectory in 2039.〔
On August 7, 1946, the asteroid passed from Earth and then from the Moon.〔
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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