交食对

探索宇宙！每天都会精选一张关于我们迷人宇宙的不同图像或照片，并附上一段由专业天文学家（astronomer）撰写的简短说明。

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

说明：交食（eclipse）往往成对出现。每年两次，在持续约34天的食季（eclipse season）期间，太阳、月球（Moon）和地球（Earth）几乎可以排列成一线。随后，相隔仅14天多的朔（new moon）和望（full moon）相位，会分别产生一次日食（solar eclipse）和一次月食（lunar eclipse）。但很少有食季能在朔和望时都达到足够近的排列，从而产生一对日全食（total solar solar eclipse）和月全食（total lunar eclipse）。通常情况下，任何食季中出现的更多是偏食（partial eclipse）。然而，2026年的最后一个食季确实产生了这样一对相隔两周的交食：8月12日的日全食（上图）和8月27/28日夜间的月偏食（partial lunar eclipse）。在朔时，这张HDR合成图像捕捉到了西班牙佩尼亚菲尔（Peñafiel）日全食开始时的景象，展现了贝利珠（Bailey's beads）的闪光和金色的日冕（solar corona）。在随后的望时，这次深度的月偏食是在法国塞夫尔（Sèvres）记录的。同样作为一张HDR合成图，该图像展示了这次偏食在其93%最大食分附近的状态，因此约有一半可见的月面（lunar disk）出现在地球本影中，显得昏暗且发红。即将到来的食季将见证2027年2月6日的日环食（annular solar eclipse），并与2月20/21日的半影月食（penumbral lunar eclipse）配对。

Explanation: Eclipses tend to come in pairs. Twice a year, during an eclipse season that lasts about 34 days, Sun, Moon, and Earth can nearly align. Then the new and full phases of the Moon, separated by just over 14 days, create a solar and a lunar eclipse. But only rarely is the alignment at both new moon and full moon during a single eclipse season close enough to produce a pair with both total solar and lunar eclipses. More often, partial eclipses are part of any eclipse season. But, the last eclipse season of 2026 did produce this fortnight-separated pairing of a total solar eclipse on August 12 (top) and an almost total lunar eclipse on the night of August 27/28. At New Moon, the solar eclipse was captured at Peñafiel, Spain near the begining of totality in this HDR composite image, revealing a flash of Bailey's beads and a golden solar corona. At the following Full Moon, the deep partial lunar eclipse was recorded from Sèvres, France. Also an HDR composite, the image shows this partial eclipse at closer to half its 93 percent maximum phase, so about half the visible lunar disk appears darkened and reddened within Earth's umbral shadow. The coming eclipse season will see an annular solar eclipse on 2027 February 6 paired with a penumbral lunar eclipse on February 20/21.