Halo (optical phenomenon) - Wikipedia

Halo (optical phenomenon) - Wikipedia

Halo (optical phenomenon) - Wikipedia

List of atmospheric optical phenomena - Wikipedia

File:Moon HALO Effect.jpg - Wikimedia Commons

Focus On: 20 Most Popular Atmospheric Optical Phenomena: Atmospheric Optics, Rainbow, Fata Morgana (mirage), Foo Fighter, Halo (optical phenomenon), Light Circumhorizontal Arc, Alpenglow, etc. - Kindle edition by Wikipedia contributors. Reference

The brilliant displays of halos, sun dogs, and other atmospheric optics

One New Mexico Halo Photo: Nine Different Optical Phenomena

Halo (optical phenomenon) - Wikipedia

Halo Optical Phenomenon Photos and Images