至日之月
A Solstice Moon

來源:Tunc Tezel|發表日期:2024-06-29
六月的滿月與落日相對,發生在至日的 28 小時之內。月球沿著黃道面緊貼著太陽的軌跡執行,因此當至日的太陽在白天的天空中升起時,從北緯地區看到的 6 月的滿月在當晚仍然很低。事實上,在土耳其布林薩 6 月 21 日的屋頂夜空中,滿月就在地平線上。 2024 年,月球也達到了一個主要的月停點,這是月球軌道在 18 . 6 年週期中的偏移所導致的月出和月落的每月南北範圍的一個極端。因此,這次六月至滿月的月出和月落位置都在地平線的最南端。
原文:Rising opposite the setting Sun, June's Full Moon occurred within about 28 hours of the solstice. The Moon stays close to the Sun's path along the ecliptic plane and so while the solstice Sun climbed high in daytime skies, June's Full Moon remained low that night as seen from northern latitudes. In fact, the Full Moon hugs the horizon in this June 21 rooftop night sky view from Bursa, Turkey, constructed from exposures made every 10 minutes between moonrise and moonset. In 2024 the Moon also reached a major lunar standstill, an extreme in the monthly north-south range of moonrise and moonset caused by the precession of the Moon's orbit over an 18.6 year cycle. As a result, this June solstice Full Moon was at its southernmost moonrise and moonset along the horizon.
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