影子与彩虹
(原标题: Shadow and Rainbow)
2026-07-18
浏览次数: 1549
日落时，彩虹和山的阴影在这张非凡的快照中被捕捉到。这幅令人惊叹的景色是7月13日在加利福尼亚州波尔托拉附近的普拉马斯国家森林史密斯峰的一个火灾瞭望台拍摄的。然而，在日落时分，雄伟的山影似乎指向了优雅的彩虹弧线的中心，这并非偶然。由于透视和较长的视线，山的阴影自然形成一个逐渐变细的三角形，其顶点位于地平线上太阳对面的点。在该地区雷暴之后，彩虹在傍晚的天空中形成拱形，其彩色和特有的42度弧形是由阳光被大气中的水滴折射和反射而形成的。彩虹弧线的几何中心位于反太阳点。在这个地球上黄金时刻的场景中，它也正对着遥远地平线上的落日。
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At sunset, an alignment of rainbow and mountain shadow was captured in this remarkable snapshot. The stunning view was recorded from a fire lookout on Smith Peak in the Plumas National Forest near Portola, California on July 13. Still, near sunset it's no accident that the majestic mountain shadow seems to point to the center of the graceful rainbow arc. Due to perspective and the long line of sight the mountain shadow naturally forms a tapering triangular shape, its apex positioned at the point opposite the Sun on the horizon. Following thunderstorms in the region, the rainbow arched across the early evening sky, with its colorful and characteristic 42 degree arc formed as sunlight is refracted and reflected by the atmospheric water droplets. The geometric center of a rainbow arc lies at the antisolar point. And in this scene from the golden hour on planet Earth, that's also opposite the setting Sun along the distant horizon.