anthelion


noun, plural ant·he·li·a [ant-hee-lee-uh, an-thee-] /æntˈhi li ə, ænˈθi-/.

  1. a luminous, white spot occasionally appearing at the sun’s elevation but in the opposite part of the sky.

noun plural -lia (-lɪə)

  1. a faint halo sometimes seen in polar or high altitude regions around the shadow of an object cast onto a thick cloud bank or fog
  2. a white spot occasionally appearing on the parhelic circle at the same height as and opposite to the sun

Plural anthelia

  1. A bright white or colored spot appearing at times in the sky opposite the Sun. White anthelia are believed to form from light that is reflected off atmospheric ice crystals; colored anthelia are believed to form from light that is refracted by atmospheric ice crystals. Compare parhelion.

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