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Mount Lemmon Survey (MLS) is a part of the Catalina Sky Survey with observatory code G96.〔(【引用サイトリンク】work=Minor Planet Center )〕 MLS uses a cassegrain reflector telescope operated by the Steward Observatory at Mount Lemmon Observatory, which is located at in the Santa Catalina Mountains northeast of Tucson, Arizona. It is currently one of the most prolific surveys worldwide, especially for discovering near-Earth objects. MLS ranks fourth on the Minor Planet Center's discovery chart with a total of 39,274 numbered minor planets, as of September 2015.〔(【引用サイトリンク】work=Minor Planet Center )〕〔(【引用サイトリンク】work=University of Arizona )〕 ==History== The survey accidentally rediscovered 206P/Barnard-Boattini, a lost comet, on October 7, 2008, by Andrea Boattini.〔 The comet has made 20 revolutions since 1892 and passed within 0.3 - 0.4 AU from Jupiter in 1922, 1934 and 2005.〔(IAUC 8995 )〕〔(The COCD Homepage )〕 This comet was also the first comet to be discovered by photographic means, by the American astronomer Edward Emerson Barnard did so on the night of October 13, 1892. 〔(206P at Garry Kronk’s Cometography )〕 was discovered by the Mt. Lemmon Survey on September 27, 2009 and it is a stable Mars trojan asteroid. The survey also discovered the unusual Aten asteroid , a dynamically cold Kozai resonator, on March 31, 2012. 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「Mount Lemmon Survey」の詳細全文を読む スポンサード リンク
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