A paraselenic circle! What an unforgettable sight! And I have seen them twice. Oddly enough both times were days after a clouded out lunar eclipse a year apart, and both times the temperatures were extremely cold(-40ish windchill). I was surprised how long this one lasted as well as I did a 3 hour time-lapse until the moon set. It literally encompassed the entire sky!br/Canon 6d-8mmfisheye-f/4-13 secs