Assertion: corona discharge | /r/HasProperty | optical phenomenon
Facets:
value: in meteorology
type: LOCATION
value: by individual small water droplets
type: OTHER
value: on a foggy glass surface
type: LOCATION
Source sentences:
text: In meteorology, a corona (plural coronae) is an optical phenomenon produced by the diffraction of sunlight or moonlight (or, occasionally, bright starlight or planetlight) by individual small water droplets and sometimes tiny ice crystals of a cloud or on a foggy glass surface.