2007 TU24
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Asteroid 2007 TU24 was discovered by the Catalina Sky Survey in Arizona on October 11, 2007. Imaging radar has estimated that it is 250 meters in diameter. This object's 554,209 kilometer approach on January 29, 2008, at 08:33 UTC, was the closest for any known potentially hazardous asteroid of this size before 2027. At closest approach the asteroid had an apparent magnitude of 10.3 and was about 50 times fainter than the naked eye can see. It required about a 3-inch telescope to be seen.…mehr

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Asteroid 2007 TU24 was discovered by the Catalina Sky Survey in Arizona on October 11, 2007. Imaging radar has estimated that it is 250 meters in diameter. This object's 554,209 kilometer approach on January 29, 2008, at 08:33 UTC, was the closest for any known potentially hazardous asteroid of this size before 2027. At closest approach the asteroid had an apparent magnitude of 10.3 and was about 50 times fainter than the naked eye can see. It required about a 3-inch telescope to be seen.