A harvest moon is the full moon closest to the autumnal equinox, which is when the sun sets due west and rises due east. And for the first time since 1991, these two events coincided in the small hours of Thursday, in the northern hemisphere.
The northern autumnal equinox officially began at about 0420 BST on 23 September. It will not fall at the same time as the harvest moon again until 2029.
Credits:
1st pic by BBC
2nd pic by: www.speedofdark-web.com
3rd pic by: www.greglefever.blogspot.com
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