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山与月的阴影

(原标题: Shadows of Mountain and Moon)

2024-01-22

浏览次数: 14

月亮和山真的能投下相似的影子吗?是的,但是光明和黑暗之间的界限并不一定要一致。这是2022年10月初在意大利格里沃拉山拍摄的四分之一月亮。太阳在这幅风景如画的风景的右侧,照亮了月球的右侧,就像它照亮了山的右侧一样。这个月相被称为“四分之一”,部分原因是从地球上可见的被照亮的部分是整个月球表面的四分之一。这张单次曝光的数字后期处理使这两个巨大的物体更加突出。捕捉这个四分之一月的终点与几乎垂直的山脊紧密对齐需要仔细的计时,因为地球每天自转一次。

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Can the Moon and a mountain really cast similar shadows? Yes, but the division between light and dark does not have to be aligned. Pictured, a quarter moon was captured above the mountain Grivola in Italy in early October of 2022. The Sun is to the right of the featured picturesque landscape, illuminating the right side of the Moon in a similar way that it illuminates the right side of the mountain. This lunar phase is called "quarter", in part, because the lit fraction visible from Earth is one quarter of the entire lunar surface. Digital post-processing of this single exposure gave both gigantic objects more prominence. Capturing the terminator of this quarter moon in close alignment with nearly vertical mountain ridge required careful timing because the Earth rotates once a day.

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