月亮拜访姐妹星
(原标题: Moon Visits Sister Stars)
2025-04-08
浏览次数: 45
有时，月球会造访昴宿星。从技术上讲，这意味着月球的轨道直接把它带到了著名的昴宿星团的前面，而昴宿星团在很远的地方。这种现象的专业术语是掩星，而月球因其罕见的所有行星和几颗著名的明亮恒星的掩星而闻名。月球倾斜和旋转的轨道使得它对七姐妹星团的掩星聚集在一起，目前的纪元从2023年开始，每月持续到2029年。然而，在那之后，下一次掩星要到2042年才会发生。这张4月1日摄于西班牙坎塔布里亚的特色照片是一张合成照片，将之前同一相机和地点拍摄的昴宿星团的曝光数字添加到最后一张照片中，以显示该星团标志性的蓝色光芒。拼图挑战：当天的天文学难题
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Sometimes, the Moon visits the Pleiades. Technically, this means that the orbit of our Moon takes it directly in front of the famous Pleiades star cluster, which is far in the distance. The technical term for the event is an occultation, and the Moon is famous for its rare occultations of all planets and several well-known bright stars. The Moon's tilted and precessing orbit makes its occultations of the Seven Sisters star cluster bunchy, with the current epoch starting in 2023 continuing monthly until 2029. After that, though, the next occultation won't occur until 2042. Taken from Cantabria, Spain on April 1, the featured image is a composite where previous exposures of the Pleiades from the same camera and location were digitally added to the last image to bring up the star cluster's iconic blue glow. Jigsaw Challenge: Astronomy Puzzle of the Day