If you had been in Sweden's Vemdalen Ski Resort with a Sun halo in the sky
, you would certainly have looked up to see it.
In the video, water has frozen into flat six-sided ice crystals. In certain circumstances an observer might see them when they're aligned with the falling crystals near sunlight or sunset. The crystals are miniature lenses and refract sunlight to create sundogs either side of the Sun. You can also see a Sun halo in the center.
Video Credit & Copyright: HÃ¥kan Hammar (Vemdalen Ski Resort, SkiStar)