A sun dog or sundog (scientific name parhelion, plural parhelia, from Greek parēlion (παρήλιον) from παρά (beside) + ἥλιος (sun), "beside the sun"; also called a mock sun[1] or a phantom sun[2]) is an atmospheric phenomenon that creates bright spots of light in the sky, often on a luminous ring or halo on either side of the sun.
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