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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 Delta Muscae ： ウィキペディア英語版 Delta Muscae Delta Muscae (δ Mus, δ Muscae), often catalogued as HD 112985, is a spectroscopic binary star system and the closest to the Earth in the southern hemisphere constellation of Musca (the Fly) at a distance of approximately 27.8 parsecs (91.0 light years). The main star is classified as a giant star with an orange tint. It is one of the stars given a Bayer designation by astronomer Johann Bayer. It was recorded in Bayer's 1603 publication ''Uranometria''. In addition it is one of the main stars used in the visual formation of the Musca constellation. ==Distance and visibility== Based on research done by the European Space Agency for the Hipparcos Star Catalogue, Delta Muscae exhibits a parallax of 35.91 milliarcseconds. With this data, it can be calculated that Delta Muscae is situated at a distance of 27.8 parsecs, or 91.0 light years, from the sun. Even though Delta Muscae is the closest star to Earth in the Musca constellation, nearly 3800 stars are closer in proximity to the Earth as stated by the Gliese Catalogue of Nearby Stars, which includes stars within twenty-five parsecs of the Sun. Delta Muscae is a star of the third magnitude (or 3.61(v) to be exact) when viewed from the Earth, and is visible to the naked eye in regions that lack dense light pollution.〔 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「Delta Muscae」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.