Home   OPOD   What's New    Rays & Shadows   Water Droplets   Rainbows   Ice Halos     Contents     Crystals     Frequent Halos       22° circular       Sundogs         Formation         Sun Altitude         Colours         Moon Dogs         More Images       Tangent Arcs       Circumscribed       Pillars       Circumzenithal       Circumhorizon       Parhelic Circle     Infrequent Halos     Multiple Displays     Other Worlds     Observing Halos     HaloSim   High Atmosphere   Links & Resources   Search - Index   123456789012345678		Sundogs, Parhelia, Mock Suns
	Red hued sundogs flank the sun's left and right. Wide angle image by Mark Trusz ( Photography site, Flikr) from Toronto Islands, Canada. The circular halo is the 22° halo. Image ©Mark Trusz , shown with permission. Sundogs, sometimes called Sun Dogs, Parhelia or Mock Suns, are with the 22º halo, the most frequent of the ice halos. They are most easily seen when the sun is low. Look about 22° (outstretched hand at arm's length) to its left and right and at the same height. When the sun is higher they are further away. Each 'dog' is red coloured towards the sun and sometimes has greens and blues beyond. Sundogs can be blindingly bright, at other times they are a mere coloured smudge on the sky. They are visible all over the world and at any time of year regardless of the ground level temperature. In Europe and North America one will be seen on average twice a week if searched for.                  How they form.     Solar Altitude.      Moon Dogs.      Image gallery.