Alpenglow

Alpenglow on Mt. Forbes in the Canadian Rockies
Solar ray 1 is the lowest from the Sun – the Sun is set. Solar ray 2 is reflected in the (snow) clouds to the observer.

Alpenglow (from German: Alpenglühen, lit.'Alps glow'; Italian: enrosadira) is an optical phenomenon that appears as a horizontal reddish glow near the horizon opposite to the Sun when the solar disk is just below the horizon.[1]

  1. ^ Lynch, David K.; Livingston, William (June 2001). Color and Light in Nature. Cambridge University Press. p. 41. ISBN 9780521775045.