subhorizon
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Subparhelic circle — The subparhelic circle is a rare halo, an optical phenomenon located below the horizon. It passes through both the subsun, below the sun, and the antisolar point, opposite to the sun. The subparhelic circle is the subhorizon counterpart to the… … Wikipedia
Subsun — A subsun or sub sun is a glowing spot seen within clouds when the clouds are observed from above. The subsun appears directly below the sun, as if it were caused by sunlight reflecting from a body of water. The reflection is caused by large… … Wikipedia