Glory / “halo” – an optical phenomenon, in a form of circle of white / colored light (like a circle of light around the head of a saint), surrounding the shadow of the head of observer (or of a plane airbone). It is caused by refraction of the sunlight or moonlight through ice crystals (water droplets in mist or clouds) in the atmosphere. Glory can also be formed around the sun, moon and or other luminous body.
December 29, 2016
See also:
Glory | Glory above Czechia | Glory and the Moon
40thousandkm 
Awesome!
You might be interested to see a Brocken spectre I photographed some years ago at the top of a mountain: https://geotopoi.wordpress.com/2010/06/12/snowdon-brocken-spectre/
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Amazing photographs! 🙂
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