Answer: sundog

AnswerCrossword Clue
SUNDOGIncomplete rainbow
SUNDOGPartial rainbow
SUNDOGLuminous halo in the sky
SUNDOGParhelion
SUNDOGSolar phenomenon
SUNDOGPartial rainbow near the horizon
sundoga small rainbow (an arc of spectral colours formed in the sky)
sundogparhelion
sundogbright circular spot on a solar halo; mock sun: usually one of two or more such spots seen on opposite sides of the sun, and often accompanied by additional luminous arcs and bands
sundoga bright circular spot on a solar halo; parhelion.
sundogsmall nearly round halo on the parhelic circle most frequently just outside the halo of 22 degrees
sundogsmall or incomplete rainbow