|anthelion (æntˈhiːlɪən, ænˈθiː-)|
|—n , pl -lia|
|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|
|[C17: from Late Greek, from anthēlios opposite the sun, from |
|anthelion (ānt-hē'lē-ən, ān-thē'-) Pronunciation Key
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.