A Sun Dog is a Mock Sun is a Parhelion

The video explains sundogs, also known as parhelia or mock suns, which appear near the sun and are caused by the refraction of light through ice crystals in cirrus clouds. Sundogs can be seen in all seasons and locations with the right cloud conditions. They are often mistaken for UFOs in photos due to reflections in camera lenses. The video also highlights how sundogs are related to rainbows and how to observe them safely.

What new insight or understanding did you gain from this video?