2024-2025年月球大停滞
(原标题: Major Lunar Standstill 2024-2025)
2025-06-20
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加拿大艾伯塔省的德蒙顿，地球就在地平线上。在这堆全景合成图像中。在每月的时间序列中，从上到下垂直排列，这个雄心勃勃的摄影项目跟随每年的日出点南北摆动，从6月至12月至，然后再回来。它也遵循相应的，但肯定更难追踪，满月升起。当然，月出的南北摆动与地平线上的日出相反。但这些升起的满月在地平线上的跨度也比日出的范围更大。这是因为这个计划周密的项目（如本视频所示）涵盖了2024年6月至2025年6月期间，以月球停滞为中心。月球轨道18.6年的岁差周期驱动了月出的南北极值。
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dmonton, Alberta, Canada, planet Earth lies on the horizon. in this stack of panoramic composite images. In a monthly time series arranged vertically top to bottom the ambitious photographic project follows the annual north-south swing of sunrise points, from June solstice to December solstice and back again. It also follows the corresponding, but definitely harder to track, Full Moon rise. Of course, the north-south swing of moonrise runs opposite sunrise along the horizon. But these rising Full Moons also span a wider range on the horizon than the sunrises. That's because the well-planned project (as shown in this video) covers the period June 2024 to June 2025, centered on a major lunar standstill. Major lunar standstills represent extremes in the north-south range of moonrise driven by the 18.6 year precession period of the lunar orbit.
© Luca Vanzella