2025年10月4日
旋转的月亮
视频提供: NASA, Lunar Reconnaissance Orbiter, Arizona State U.
说明: 地球上没有人看过月球这样自转。这是因为月球被潮汐锁定在同步自转中，只能向我们这颗美丽星球的居民展示月球的一面。然而，结合现代数位技术与月球勘测轨道飞行器（LRO）传回的许多详细影像，可以制作出高解析度的虚拟月球自转影片。事实上，这段精选的缩时影片从熟悉的月球正面开始，迅速找到东方海，这是一个大而中心黑暗的陨石坑，从地球上难以看到，它在赤道下方旋转进入视野。在24秒内压缩的完整月球自转中，影片清楚显示出面向地球的月球正面拥有丰富的黑暗月海，而月球背面则以明亮的月球高地为主。当然，今晚在希望晴朗的天空下，你也可以加入其他月球观察者的行列。在国际观月夜，观察月球正面的阳光照射部分。
明日的图片: long storm on Saturn
Due to the lapse in federal government funding, NASA is not updating APOD website. We sincerely regret this inconvenience.
由于美国联邦政府资金中断，NASA目前暂停更新APOD网站。对此带来的不便，我们深感抱歉。
英文原文:
Explanation: No one on Earth sees the Moon rotate like this. That’s because the Moon is tidally locked in synchronous rotation , showing only one side to denizens of our fair planet. Still, given modern digital technology , combined with many detailed images returned by the Lunar Reconnaissance Orbiter (LRO), a high resolution virtual Moon rotation movie can be composed. In fact, the featured time-lapse video starts with a view of the familiar lunar nearside and quickly finds the Mare Orientale , a large crater with a dark center that is difficult to see from the Earth, rotating into view just below the equator. In a complete lunar rotation condensed into 24 seconds, the video clearly shows that the Earth-facing nearside of the Moon contains an abundance of dark lunar maria , while the lunar farside is dominated by bright lunar highlands . Of course, you can just join other moon-watchers under hopefully clear skies tonight. Check out the sunlit portion of the lunar nearside on International Observe the Moon Night.
