That photo seems to be of the moon seen through the fog and a fog-bow caused by the rising sun. We get morning rainbows and fogbows a lot out on Dungeness Spit, because the rising sun shines straight into the marine layer rolling up the Strait.
I saw an actual moon fogbow one time. I was out on the beach for the Super Full Moon on New Year's Eve 2009, which was very foggy; the Moon was high overhead, but scarcely visible, and all around me as I walked was a perfect ring of very-faintly-colored light, distinct from the surrounding milky luminosity. I've been out in heavy moonlit fog a lot of other times, but never seen that before or since.
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