月食中的红色黄昏射线
(原标题: Red Crepuscular Rays from an Eclipse)
2022-05-30
浏览次数: 14
那座岛后面发生了什么？意料之中和意料之外的事情。也许我们可以预料到，照片上的光线——被称为黄昏光线——来自太阳。然而，出乎意料的是，在上月底，太阳被月球部分遮蔽。也许，当太阳光线穿过地平线以下云层的缝隙时，是相当明亮的。然而，令人意想不到的是，黄昏的光线是相当红的，这可能是地球大气中大量气溶胶散射掉大部分蓝光的结果。期待着，带着希望，一个令人难忘的场景，月亮和太阳叠加在一起。不幸的是，从这个位置——在乌拉圭望向阿根廷——云层遮住了日食——这并非完全出乎意料。然而，在收拾行李回家后，鲜红的黄昏光线的美丽出现了——相当出乎意料。哦——还有地平线上的那个岛——实际上是两个岛。
查看原文解释
What's happening behind that island? Things both expected and unexpected. Expected, perhaps, the pictured rays of light -- called crepuscular rays -- originate from the Sun. Unexpected, though, the Sun was being partially eclipsed by the Moon at the time -- late last month. Expected, perhaps, the Sun's rays are quite bright as they shine through gaps in below-horizon clouds. Unexpected, though, the crepuscular rays are quite red, likely the result an abundance of aerosols in Earth's atmosphere scattering away much of the blue light. Expected, with hope, a memorable scene featuring both the Moon and the Sun, superposed. Unfortunately, from this location -- in Uruguay looking toward Argentina -- clouds obscured the eclipse -- which wasn't completely unexpected. However, after packing up to go home, the beauty of bright red crepuscular rays emerged -- quite unexpectedly. Oh -- and that island on the horizon -- it's really two islands.
© Fefo Bouvier