halo
n//ˈheɪloʊ//halo, gloria, aura
A circular band of coloured light, visible around the sun or moon etc., caused by reflection and refraction of light by ice crystals in the atmosphere.
Anything resembling this band, such as an effect caused by imperfect developing of photographs.
(religion) nimbus, a luminous disc, often of gold, around or over the heads of saints, etc., in religious paintings.
The metaphorical aura of glory, veneration or sentiment which surrounds an idealized entity.