拉斯坎帕纳斯天文台上空的波状云
(原标题: Undulatus Clouds over Las Campanas Observatory)
2024-11-19
浏览次数: 19
这些云发生了什么？虽然看起来这些又长又薄的云指向山顶，也许那里有一个世界著名的天文台，但只有一部分是真的。就云而言，它的形成是地球低层大气中令人印象深刻的周期性波动气流的偶然叠加。波状云是阿斯皮塔斯云的一种，形成于山顶，那里的空气足够凉爽，导致不透明的水滴凝结。广角的全景创造了云在山上汇聚的错觉。就土地而言，在那座山峰的顶端确实有一个世界闻名的天文台：位于智利阿塔卡马沙漠的卡内基科学公司拉斯坎帕纳斯天文台。可见的两个望远镜圆顶是6.5米的麦哲伦望远镜。9月底，一位思维敏捷的摄影师用手机拍下了这张照片。你的天空惊喜：APOD在你的生日上展示了什么照片？(1995后)
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What's happening with these clouds? While it may seem that these long and thin clouds are pointing toward the top of a hill, and that maybe a world-famous observatory is located there, only part of that is true. In terms of clouds, the formation is a chance superposition of impressively periodic undulating air currents in Earth's lower atmosphere. Undulatus, a type of Asperitas cloud, form at the peaks where the air is cool enough to cause the condensation of opaque water droplets. The wide-angle nature of the panorama creates the illusion that the clouds converge over the hill. In terms of land, there really is a world-famous observatory at the top of that peak: the Carnegie Science's Las Campanas Observatory in the Atacama Desert of Chile. The two telescope domes visible are the 6.5-meter Magellan Telescopes. The featured coincidental vista was a surprise but was captured by the phone of a quick-thinking photographer in late September. Your Sky Surprise: What picture did APOD feature on your birthday? (post 1995)
© Yuri Beletsky