延时影片: 意大利阿尔卑斯山上空的极光
Aurora Timelapse Over Italian Alps
Video Credit & Copyright: Cristian Bigontina
Explanation: Did you see last night’s aurora? This question was relevant around much of the world a few days ago because a powerful auroral storm became visible unusually far from the Earth’s poles. The cause was a giant X-class solar flare on Tuesday that launched energetic electrons and protons into the Solar System, connecting to the Earth via our planet’s magnetic field. A red glow of these particles striking oxygen atoms high in Earth’s atmosphere pervades the frame, while vertical streaks dance. The featured video shows a one-hour timelapse as seen from Cortina d’Ampezzo over Alps Mountain peaks in northern Italy. Stars from our Milky Way Galaxy dot the background while streaks from airplanes and satellites punctuate the foreground. The high recent activity of our Sun is likely to continue to produce picturesque auroras over Earth during the next year or so.
Gallery: Global aurora during October 10/11, 2024
Tomorrow’s picture: comet tails
延时影片: 意大利阿尔卑斯山上空的极光
影片提供与版权: Cristian Bigontina
说明: 你有看到昨晚的极光吗？对全球许多地方来说，这是几天前很热门的提问，因为在离极区颇远的这些地方，竟然见到了明亮的极光。原因是上周二，太阳发生了一次强烈的X级日闪/耀斑，把高能电子和质子抛入太阳系，其中部分经由地球磁场与我们的行星发生连结，进入地球。这些粒子撞击地球高层大气中的氧原子，产生布满整个视野的红光及垂直跃动的光带。这部摄于科尔蒂纳丹佩佐镇的延时主题影片，呈现了意大利北部阿尔卑斯山群峰上空在1小时期间的景观。影片背景里散布着我们银河系的恒星，而飞机和卫星的光迹则在前景中穿梭。近来高度活跃的太阳，预计在未来的一年左右，会持续在地球上产生美丽的极光。
图库: 2024年10月10日和11日的全球极光
明日的图片: comet tails
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