披着蓝色光带的红月

披着蓝色光带的红月

BySamuel Chan

A developing total lunar eclipse is shown in three frames. At the top part of the uneclipsed Moon is visible with a distinctive blue band separating it from the rest of the reddened Moon. The middle frame shows a mostly reddened Moon with a the blue band just visible on the upper right, while the lowest frame shows an entirely eclipsed moon all in red. Please see the explanation for more detailed information.
三幅画面显示了正在发生的月全食。在顶部，未被遮挡的月球可见，并且有一条明显的蓝色光带将其与变红的月球其他部分分隔开。中间的画面显示了一颗大部分变红的月球，蓝色光带仅在右上角隐约可见，而最底部的画面展示了一颗完全被地球阴影覆盖并呈现红色的月球。有关更多详细信息，请参阅说明。

镶蓝带的红月

镶蓝带的红月

ByNASA中文

2021年12月01日 A Blue-Banded Blood Moon Image Credit: Angel Yu Explanation: What causes a blue band to cross the Moon during a lunar eclipse? The blue band is real but usually quite hard to see. The featured HDR image of last week’s lunar eclipse, however — taken from Yancheng, China — has been digitally processed to equalize the Moon’s brightness and exaggerate the colors. The gray color of the bottom right is the Moon’s natural color, directly illuminated by sunlight. The upper left part of the Moon is not directly lit by the Sun since it is being eclipsed — it in the Earth’s shadow. It is faintly lit, though, by sunlight that has passed deep through Earth’s atmosphere. This part of the Moon is red…