aureole

The term aureole denotes:

in astronomy a ring of light that occurs directly on the star, see corona (atmospheric optics)
in iconography a halo encompassing the entire body

in mining, a bluish glow around mine lamps when mine gas occurs

a light appearance on electrically charged bodies at high voltage, see aureole (electricity)

Aureole (1950–1975), British racehorse and thoroughbred breeding stallion