大麥哲倫雲星系
The Large Magellanic Cloud Galaxy
來源：Ireneusz Nowak;
Text: Natalia Lewandowska
(SUNY Oswego)｜發表日期：2024-10-02
它是我們銀河系最大的衛星星系。如果你住在南方，大麥哲倫雲（LMC）就會非常顯眼，它橫跨夜空約 10 度，比海豚魚座（Dorado）南側的滿月還要大 20 倍。由於距離只有大約 16 萬光年，我們可以看到 LMC 結構的許多細節，比如它的中央條帶和單旋臂。LMC 孕育著無數的恆星苗圃，新的恆星在這裡誕生，這些恆星在特寫圖片中顯示為粉紅色。它是塔蘭圖拉星雲（Tarantula Nebula）的發源地，也是整個本星系群中目前最活躍的恆星形成區。亨麗埃塔-斯旺-利維特對 LMC 和小麥哲倫雲（SMC）的研究發現了仙王座變星的週期-光度關係，這種關係被用來測量附近宇宙的距離。 調查：色盲與天文影像
原文：It is the largest satellite galaxy of our home Milky Way Galaxy. If you live in the south, the Large Magellanic Cloud (LMC) is quite noticeable, spanning about 10 degrees across the night sky, which is 20 times larger than the full moon towards the southern constellation of the dolphinfish (Dorado). Being only about 160,000 light years away, many details of the LMC's structure can be seen, such as its central bar and its single spiral arm. The LMC harbors numerous stellar nurseries where new stars are being born, which appear in pink in the featured image. It is home to the Tarantula Nebula, the currently most active star forming region in the entire Local Group, a small collection of nearby galaxies dominated by the massive Andromeda and Milky Way galaxies. Studies of the LMC and the Small Magellanic Cloud (SMC) by Henrietta Swan Leavitt led to the discovery of the period-luminosity relationship of Cepheid variable stars that are used to measure distances across the nearby universe. Survey: Color Blindness and Astronomical Images
※ 本文由萌芽機器人自動轉貼自每日一天文圖（Astronomy Picture of the Day，APOD），原文為英文，正體中文是透過 DeepL 翻譯及 OpenCC 進行自動處理，內容僅供參考，若有任何錯誤之處還請見諒！
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