Haloes and sundogs: Stock photos of haloes and sun dogs (mock suns, parhelia), both ice-crystal optical effects.

  • Sundog (parhelion) with the sun in a frozen condensation trail
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  • Cloud types: Cirrostratus clouds thickening ahead of warm front
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  • Halo around the sun in a winter landscape
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  • Full halo in a veil of Cirrostratus clouds
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  • Solar halo (bright ring around the sun)
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  • Sundog (parhelion), sometimes called a mock sun
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