土星在月球边缘
(原标题: Saturn at the Moon's Edge)
2024-07-27
浏览次数: 15
土星现在在午夜前从地球的天空中升起。7月24日，这颗肉眼可见的行星在天空中与一个渐亏的月亮紧密相连。但是从地球上的一些地方看，这个环状的气体巨星被遮挡了，在亚洲和非洲部分地区的天空中消失在月球后面大约一个小时。因为月亮和明亮的行星在黄道面附近的天空中徘徊，这样的掩星事件并不罕见，但它们可能是戏剧性的。在这张从中国江苏南京用望远镜拍摄的照片中，土星消失在月盘之后的瞬间。这张照片给人的错觉是土星悬挂在Glushko陨石坑上方，这是一个直径43公里的年轻射线陨石坑，靠近月球的西部边缘。当然，月球距离地球40万公里，而土星距离地球14亿公里。
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Saturn now rises before midnight in planet Earth's sky. On July 24, the naked-eye planet was in close conjunction, close on the sky, to a waning gibbous Moon. But from some locations on planet Earth the ringed gas giant was occulted, disappearing behind the Moon for about an hour from skies over parts of Asia and Africa. Because the Moon and bright planets wander through the sky near the ecliptic plane, such occultation events are not uncommon, but they can be dramatic. In this telescopic view from Nanjing, Jiangsu, China, Saturn is caught moments before its disappearance behind the lunar disk. The snapshot gives the illusion that Saturn hangs just above Glushko crater, a 43 kilometer diameter, young, ray crater near the Moon's western edge. Of course, the Moon is 400 thousand kilometers away, compared to Saturn's distance of 1.4 billion kilometers.
© Chengcheng Xu