Atmospheric Optics Home     Arctic Halos Previous Feature Next Feature Subscribe to Features on RSS Feed

Arctic Halos  by Tom Morgan January '08. Image ©Tom Morgan, shown with permission.

Tall sundogs flank the sun, their shape set by the locations of layers of diamond dust crystals.

Or are they parts of a 22° halo? Tall sundogs result from plate crystals with large wobbles. When wobbles are very large the distinction between tall sundogs and a 22° halo becomes rather academic.