Imaged by Steve West (Steve's Atmospheric Phenomena) on Feb 23rd 2008 in Tucson, Arizona. ©Steve West , shown with permission "There was just the weak halo until this wedge-shaped clearing pushed in above the moon. Then the two dogs and a bit of the parhelic circle lit up for about 10 minutes. Shot at ISO 200 for 30sec with a Konica Minolta 7D and Sony 11-18 lens. No diamond dust here in the desert!" A bright moon makes halos and luckily we do not always need diamond dust. Halos formed by ice crystals in high cirrus clouds can be seen anywhere on Earth summer and winter.