Copyright:
原文:
On some nights, the sky is the best show in town. On this night, the sky was not only the best show in town, but a composite image of the sky won an international competition for landscape astrophotography. The featured winning image was taken in 2011 over J�kuls�rl�n, the largest glacial lake in Iceland. The photographer combined six exposures to capture not only two green auroral rings, but their reflections off the serene lake. Visible in the distant background sky is the band of our Milky Way Galaxy and the Andromeda galaxy. A powerful coronal mass ejection from the Sun caused auroras to be seen as far south as Wisconsin, USA. Solar activity over the past week has resulted in auroras just over the past few days. Follow APOD on: Facebook, Google Plus, or Twitter
中文翻譯:
在某些夜晚，天空是城中最精彩的表演。而今夜，天空不單只是最佳的表演，還因一張合成圖片贏得了國際風景天文攝影比賽的冠軍。這張獲獎圖片拍攝於2011年，地點位於冰島最大的冰川湖——Jökulsárlón。攝影師將六張曝光合成，以捕捉兩道綠色極光環以及它們在寧靜湖面上的倒影。遠處的天空中可見我們的銀河系帶和仙女座星系。由於太陽的強烈日冕物質拋射，極光甚至可以在美國威斯康辛州看到。過去一週的太陽活動導致了最近幾天的極光現象。
#天文攝影 #極光 #銀河系 #仙女座星系 #冰島 #Jökulsárlón #美麗天空 #自然奇觀 #APOD #太陽活動 #夜空之美
來源:NASA每日圖片
