在月球的阴影下
影像来源与版权:Yuri Beletsky (Carnegie Las Campanas Observatory, TWAN)

说明:7月2日,在南美洲2019年的日全食期间,地球上的居民可能会站在月球的黑暗阴影下。它首先着陆于新西兰东部的南太平洋。月亮的阴影沿着一条狭窄的轨道向东移动,着陆于智利海岸,太阳则低悬在西方地平线上空。然而,影像前景中捕捉到的是在全食开始前的最后时刻,直射阳光所投射的长长阴影。虽然衍射峰来自相机镜头的光圈,但是几乎完全被遮挡的太阳在晴朗、黑暗的天空中会短暂地发出像美丽钻石环一样闪耀的光芒。
翻译:北京天文馆

In the Shadow of the Moon
Image Credit & Copyright: Yuri Beletsky (Carnegie Las Campanas Observatory, TWAN)

Explanation: On July 2 denizens of planet Earth could stand in the Moon’s dark umbral shadow during South America’s 2019 total solar eclipse. It first touched down in the Southern Pacific Ocean, east of New Zealand. Racing toward the east along a narrow track, the shadow of the Moon made landfall along the Chilean coast with the Sun low on the western horizon. Captured in the foreground here are long shadows still cast by direct sunlight though, in the final moments before totality began. While diffraction spikes are from the camera lens aperture, the almost totally eclipsed Sun briefly shone like a beautiful diamond ring in the clear, darkened sky.
Astronomy Picture of the Day 07/04/2019