Bartley L. Cardon
Abstract
An unusual combination of lunar halos was photographed over Tucson, Arizona on 14 November 1975. Three halos, the 22° refraction halo, the circumscribed halo, and a reflection halo (the paraselenic circle) were present. The origin of these halos is discussed. The form and orientations of the ice crystals responsible for the observed halo features are deduced.
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An unusual combination of lunar halos was photographed over Tucson, Arizona on 14 November 1975. Three halos, the 22° refraction halo, the circumscribed halo, and a reflection halo (the paraselenic circle) were present. The origin of these halos is discussed. The form and orientations of the ice crystals responsible for the observed halo features are deduced.
Key concepts: Halo, Physics, Reflection (computer programming), Astronomy, Galactic halo, Refraction, Astrophysics, Halo orbit