Copyright:
Paul C. Swift
原文:
In cosmic brush strokes of glowing hydrogen gas, this beautiful skyscape unfolds across the plane of our Milky Way Galaxy and the center of the northern constellation Cygnus the Swan. The featured image spans about six degrees. Bright supergiant star Gamma Cygni (Sadr) to the upper left of the image center lies in the foreground of the complex gas and dust clouds and crowded star fields. Left of Gamma Cygni, shaped like two luminous wings divided by a long dark dust lane is IC 1318, whose popular name is understandably the Butterfly Nebula. The more compact, bright nebula at the lower right is NGC 6888, the Crescent Nebula. Some distance estimates for Gamma Cygni place it at around 1,800 light-years while estimates for IC 1318 and NGC 6888 range from 2,000 to 5,000 light-years.
中文翻譯:
在宇宙的壯麗畫卷中，這片由發光氫氣組成的美麗天幕在我們的銀河系平面上展現，位於北方星座天鵝座的中心。這幅圖片跨越約六度角。明亮的超巨星伽馬天鵝星（Gamma Cygni, Sadr）位於畫面左上角，置身於複雜的氣體和塵埃雲以及星星繁多的星域中。伽馬天鵝星左側的IC 1318，因其形狀如同兩翼並被長長的黑暗塵埃帶所分隔，因此被稱為蝴蝶星雲（Butterfly Nebula）。而右下方較為緊湊、明亮的星雲則是NGC 6888，稱為新月星雲（Crescent Nebula）。伽馬天鵝星的距離估計約為1,800光年，而IC 1318和NGC 6888的距離估計則介於2,000至5,000光年之間。
#CosmicBeauty #MilkyWay #GammaCygni #ButterflyNebula #CrescentNebula #Cygnus #Astrophotography #SpaceLovers #Stargazing #Astronomy
來源:NASA每日圖片
