Copyright:Lorand Fenyes
原文:
The Big Dipper is an easy to recognize, well-known asterism in northern skies, though many see the Plough or Wagon. Famous bright nebulae of the north can also be found along its familiar lines, highlighted in this carefully composed scene with telescopic insets framed in the wider-field skyview. All from Messier’s catalog, M101 and M51 are cosmic pinwheel and whirlpool on the left, spiral galaxies far beyond the Milky Way. To the right, M108, a distant edge-on spiral galaxy is seen close to our galaxy’s own owl-faced planetary nebula M97. Taken on January 16, the wider-field view seems to include an extra star along the Dipper’s handle, though. That’s Comet Catalina (C/2013 US10) now sweeping through northern nights.
中文翻譯:
🌌 大熊座是一個在北半球中易於識別且廣為人知的星群，譚家常稱為「鍬」或「貨車」。著名的明亮星雲也在其熟悉的線條中出現，這幅精心構圖的場景中包含了天文望遠鏡的插圖，並在更廣闊的天區中呈現出來。在這些景象中，來自梅西耶目錄的M101和M51分別是位於左邊的宇宙螺旋星系，分別為「宇宙陀螺」和「漩渦星系」，它們遠在我們的銀河系之外。而在右側，M108是一個遙遠的邊緣螺旋星系，與我們銀河系自己的貓頭鷹面行星星雲M97相鄰。這幅更廣角的視圖中，看起來還有一顆位於大熊座把手上的星星，那就是正在北半球夜空中掠過的哈雷彗星（Comet Catalina, C/2013 US10）。✨
#大熊座 #星雲 #宇宙 #彗星 #星系 #M101 #M51 #M108 #M97 #科學 #天文學 #星空 #夜空 #天體攝影 #探索宇宙
來源:NASA每日圖片
