60秒消失：绿色的日落
(原标题: Gone in 60 Seconds: A Green Flash Sunset)
2023-10-25
浏览次数: 13
60秒后，夕阳将变成绿色。实际上，太阳的顶部不仅看起来是绿色的，而且它的所有边缘都是波浪状的。太阳本身是不变的——这两种效应都是由地球大气层的冷热层引起的。这种不寻常的颜色被称为绿色闪光，之所以会出现，是因为这些大气层不仅会移动背景图像，还会像棱镜一样将颜色分散到稍微不同的方向。这段视频是本月早些时候在美国夏威夷海岸拍摄的。等了60秒之后，在视频的最后，太阳的上半部分似乎独自盘旋在太空中，同时不仅变成了绿色，而且变成了蓝色。然后突然间，太阳似乎缩小到什么都没有——明天才会回来。
查看原文解释
In 60 seconds, this setting Sun will turn green. Actually, the top of the Sun already appears not only green, but wavey -- along with all of its edges. The Sun itself is unchanged -- both effects are caused by looking along hot and cold layers in Earth's atmosphere. The unusual color is known as a green flash and occurs because these atmospheric layers not only shift background images but disperse colors into slightly different directions, like a prism. The featured video was captured earlier this month off the coast of Hawaii, USA. After waiting those 60 seconds, at the video's end, the upper part of the Sun seems to hover alone in space, while turning not only green, but blue. Then suddenly, the Sun appears to shrink to nothing -- only to return tomorrow.
© Tengyu Cai