A fully developed corona is perhaps the finest form of aurora.
In architecture, the term "corona" is used of that part of a cornice which projects over the bed mould and constitutes the chief protection to the wall from rain; it is always throated, and its soffit rises towards the wall.
These coronagraphs produce images of the " emission line corona.
The corona is very faint relative to the main body of the sun.
The corona civica, made of oak leaves with acorns, was bestowed on the soldier who in battle saved the life of a Roman citizen.
