Astronomy Picture of the Day——星河下喷发的火山
A Volcano of Fire under a Milky Way ofStars
Image Credit & Copyright: Diego Rizzo
Explanation: Sometimes it's hard to decidewhich is more impressive -- the land or the sky. On the land of the featuredimage, for example, the Volcano of Fire (Volcán de Fuego) is seen eruptingtopped by red-hot, wind-blown ash and with streams of glowing lava running downits side. Lights from neighboring towns are seen through a thin haze below. Inthe sky, though, the central plane of our Milky Way Galaxy runs diagonally fromthe upper left, with a fleeting meteor just below, and the trail of a satelliteto the upper right. The planet Jupiter also appears toward the upper left, withthe bright star Antares just to its right. Much of the land and the sky werecaptured together in a single, well-timed, 25-second exposure taken inmid-April from the side of Fuego's sister volcano Acatenango in Guatemala. Theimage of the meteor, though, was captured in a similar frame taken about 30minutes earlier -- when the volanic eruption was not as photogenic -- and addedlater digitally.
星河下喷发的火山
有时地面和夜空的景色都非常迷人，以至于难以分清哪里更让加精彩。例如，在这幅特征影像的陆地之上，能看到正在喷发的富埃戈火山，山顶上是被风吹起的是炽热火山灰，炽热的熔岩流沿着火山一侧向下流。透过山下的薄雾，还可以看到附近城镇的灯光。而在天空之中，银河系的中央银盘从影像左上方斜穿而过，它的正下方是一颗稍纵即逝的流星，右上方可以看到一颗卫星的轨迹。在影像的左上方能看到木星，明亮的心宿二位于其右侧。这幅影像的单次曝光时长为25秒，是4月中旬在危地马拉·阿卡特南戈火山（富埃戈火山的姐妹火山）的侧拍摄而成的，它捕捉到了大片陆地和天空的美景。不过影像中的流星是在火山喷发30分钟前拍摄的一幅照片中捕捉到的，而当时火山的景象并没有那么惊艳。两张影像通过数字叠加合成了这幅惊艳影像。
参考文献：
https://apod.nasa.gov/apod/image/1905/FuegoMilkyWay_Rizzo_3000.jpg
近期文章：
Astronomy Picture of the Day——毅力谷全景