2020 March 16
A Moon Dressed Like Saturn
Image Credit & Copyright: Francisco Sojuel
Explanation: Why does Saturn appear so big? It doesn’t — what is pictured are foreground clouds on Earth crossing in front of the Moon. The Moon shows a slight crescent phase with most of its surface visible by reflected Earthlight known as ashen glow. The Sun directly illuminates the brightly lit lunar crescent from the bottom, which means that the Sun must be below the horizon and so the image was taken before sunrise. This double take-inducing picture was captured on 2019 December 24, two days before the Moon slid in front of the Sun to create a solar eclipse. In the foreground, lights from small Guatemalan towns are visible behind the huge volcano Pacaya.
Tomorrow’s picture: galaxy swirl
形似土星的月亮
影像提供與版權: Francisco Sojuel
說明: 土星怎會這麼大？因為它不是土星，只是地球的浮雲飄過月亮前方造成的景觀。當時月亮帶著纖細的蛾眉相，其他大片的月面因反射地照光而散發暗淡的灰光。受到太陽直接照耀的月表，只有底部的狹窄蛾眉亮區，因此太陽必然是在地平面下方，而且時值日出之前。這幅多看二眼才會恍然的照片，攝於2019年12月24日，在月亮運行到太陽前方造成一次日食的2天之前。在前景龐大帕卡亞火山後方的人間燈火，是來自危地馬拉的小城鎮。
明日的圖片: galaxy swirl
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