Pyrenees Paraselene . ... Credit Copyright: Patrick L cureuil Explanation: A sea of clouds laps at rugged moutain peaks of the French Pyrenees in this serene view from Pic du Midi Observatory. ... At the top right lies a faint, but colorful moondog or paraselene . Analogous to a sundog or parhelion , the paraselene is produced by moonlight shining through thin, hexagonal-shaped ice crystals in high cirrus clouds . ... NASA Web Site Statements, Warnings, and Disclaimers . ...