Copyright:
Robert Gendler
原文:
Big, bright, and beautiful, spiral galaxy M83 lies a mere twelve million light-years away, near the southeastern tip of the very long constellation Hydra. Prominent spiral arms traced by dark dust lanes and blue star clusters lend this galaxy its popular name, The Southern Pinwheel. But reddish star forming regions that dot the sweeping arms highlighted in this sparkling color composite also suggest another nickname, The Thousand-Ruby Galaxy. About 40,000 light-years across, M83 is a member of a group of galaxies that includes active galaxy Centaurus A. In fact, the core of M83 itself is bright at x-ray energies, showing a high concentration of neutron stars and black holes left from an intense burst of star formation. This sharp composite color image also features spiky foreground Milky Way stars and distant background galaxies. The image data was taken from the Subaru Telescope, the European Southern Observatory’s Wide Field Imager camera, and the Hubble Legacy Archive.
中文翻譯:
🌌 大而明亮、美麗的螺旋星系 M83 僅距離地球約 1200 萬光年，位於長長的水蛇座（Hydra）東南端。明顯的螺旋臂中穿插著暗黑的塵埃帶和藍色星團，讓這個星系獲得了「南方風車」（The Southern Pinwheel）的流行名稱。不過，點綴在這些優雅臂膀上的紅色恆星形成區域，也讓它有了另一個別名——「千紅寶石星系」（The Thousand-Ruby Galaxy）。
M83 大約有 40,000 光年寬，是一個星系群的成員，該星系群還包括了活躍的星系「半人馬座 A」（Centaurus A）。事實上，M83 的核心在 X 射線能量上也十分明亮，顯示出高密度的中子星和黑洞，這些都是從強烈的恆星形成活動中留下來的。這幅清晰的彩色合成圖像中，還顯示了前景的銀河系群星和遙遠的背景星系。影像數據取自於 Subaru Telescope、歐洲南方天文台的寬場成像相機和哈勃遺產檔案。
#M83 #南方風車 #千紅寶石星系 #螺旋星系 #星系探索 #宇宙之美 #天文學 #Galaxies #SpaceWonder #AstronomyLovers
來源:NASA每日圖片
