飞机凌越新月

2023年12月4日

Plane Crossing Crescent Moon
Image Credit & Copyright: Juned Patel

Explanation: No, the Moon is not a bow, and no, it did not shoot out a plane like an arrow. What is pictured is a chance superposition. The plane’s contrail would normally appear white, but the large volume of air toward the rising Sun preferentially knocked away blue light, not only making the sky blue, but giving the reflected trail a bright red hue. Far in the distance, well behind the plane, the crescent Moon also appears slightly reddened. Captured early last month from Bolton, UK, the featured image was taken so soon after sunrise that the plane was sunlit from below, as was its contrail. Within minutes, unfortunately, the impromptu sky show ended. The plane moved out of sight. The Moon kept rising but became harder to see through a brightening sky. And the contrail gradually dispersed.

Tomorrow’s picture: powerful ray

飞机凌越新月
影像提供与版权: Juned Patel

说明: 上图的弦月不是弓，也没把飞机射出如箭。这只是一次意外重合的产物。飞机的凝结尾通常呈白色，但在冉冉升起朝日方向的大量空气，选择性的消去了阳光的蓝光，不但造就了蓝天，而且也把反射阳光的凝结尾染成亮红色。而在飞机远后方的新月，也稍微偏红。这幅在上个月初摄于英国博尔顿市的主题影像，取像的时间点紧在日落之后，因此照耀飞机及凝结尾的阳光来自下方。令人遗憾的是，在拍照的数分钟之后，这场即兴的天空演出就落幕了。飞机远离视线而去，天空愈来愈明亮，让持续升起的月亮变得难以辨认，而凝结尾也逐渐消散。

明日的图片: powerful ray