横跨水面的行星线
(原标题: Planet Lines Across Water)
2025-05-05
浏览次数: 35
是什么导致了这些线条？天空中的物体有时会被反射成水面上的线条——但这是为什么呢？如果水面是光滑的，那么反射的物体也会出现类似的斑点。但如果水是波浪状的，那么在很多地方，物体的光可以被水反射回来，仍然照到你身上——这样就形成了一条线。日落前和日出后的太阳也经常出现同样的效果。大约10天前，在西班牙的伊比沙岛，从地中海直接或以线反射的形式拍摄了月亮、金星（上）和土星（右，暗）的照片。右边另一个有水反射线的明亮物体是岩石上的灯塔，用来警告过往船只。探索你的宇宙：随机APOD生成器
查看原文解释
What’s causing those lines? Objects in the sky sometimes appear reflected as lines across water — but why? If the water’s surface is smooth, then reflected objects would appear similarly -- as spots. But if the water is choppy, then there are many places where light from the object can reflect off the water and still come to you -- and so together form, typically, a line. The same effect is frequently seen for the Sun just before sunset and just after sunrise. Pictured about 10 days ago in Ibiza, Spain, images of the rising Moon, Venus (top), and Saturn (right, faint) were captured both directly and in line-reflected forms from the Mediterranean Sea. The other bright object on the right with a water-reflected line is a beacon on a rock to warn passing boats. Explore Your Universe: Random APOD Generator
© Jose Antonio Hervas