月光的持久
(原标题: The Persistence of Moonlight)
2023-12-30
浏览次数: 15
北半球的一些人称之为12月的冷月或长夜月，2023年的最后一次满月正在这个超现实的山脉和天空中升起。这幅达利式的景象是在意大利格拉帕山附近用相机和长焦镜头一次曝光拍摄的。不过，满月并没有融化。它在地平线附近伸展和扭曲的外观是由于沿着视线的折射变化造成的，并产生了明亮的月球盘的移动图像或幻象。大气折射率的变化与不同温度和密度的大气层相对应。这次满月升起的长长的视线所产生的大气折射效应还包括在月球扭曲的下缘上隐约可见的细细的红色边缘和沿着顶部的细细的绿色边缘。
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Known to some in the northern hemisphere as December's Cold Moon or the Long Night Moon, the last full moon of 2023 is rising in this surreal mountain and skyscape. The Daliesque scene was captured in a single exposure with a camera and long telephoto lens near Monte Grappa, Italy. The full moon is not melting, though. Its stretched and distorted appearance near the horizon is caused as refraction along the line of sight changes and creates shifting images or mirages of the bright lunar disk. The changes in atmospheric refraction correspond to atmospheric layers with sharply different temperatures and densities. Other effects of atmospheric refraction produced by the long sight-line to this full moon rising include the thin red rim seen faintly on the distorted lower edge of the Moon and a thin green rim along the top.
© Giacomo Venturin