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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク 2014 DX110 ： ウィキペディア英語版 2014 DX110 (also written 2014 DX110) is a near-Earth asteroid roughly in diameter that passed less than 1 lunar distance from Earth on 5 March 2014.〔 With an absolute magnitude (H) of 25.7,〔 is potentially the largest asteroid to come inside the orbit of the Moon since on 4 August 2013. The close approach was webcast live by Slooh and Virtual Telescope.〔〔 The asteroid came to opposition (furthest elongation in the sky from the Sun) on 15 February 2014, but the asteroid had a very faint apparent magnitude of about 23 and was only 10 degrees from the full moon.〔 The asteroid was discovered on 28 February 2014 by Pan-STARRS at an apparent magnitude of 20 using a Ritchey–Chrétien telescope.〔 On 5 March 2014 at 21:00 UT the asteroid passed from Earth〔 and reached about apparent magnitude 15.〔〔 At 22:22 UT it passed from the Moon.〔 By 6 March 2014 18:00 UT, the asteroid was less than 30 degrees from the Sun and dimming significantly.〔 It has an observation arc of 5 days with an uncertainty parameter of 6.〔 It was removed from the JPL Sentry Risk Table on 5 March 2014 using JPL solution 3 with an observation arc of 5 days.〔 When the asteroid only had an observation arc of 4 days, virtual clones of the asteroid that fit the uncertainty region in the known trajectory showed a 1 in 10 million chance that the asteroid could impact Earth on 4 March 2046.〔 With a 2046 Palermo Technical Scale of −7.11,〔 the odds of impact by in 2046 were about 13 million times less〔 than the background hazard level of Earth impacts which is defined as the average risk posed by objects of the same size or larger over the years until the date of the potential impact.〔 Using the nominal orbit, NEODyS shows that the asteroid will be from Earth on 4 March 2046.〔 == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「2014 DX110」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.