The corona is a Latin word which means ‘crown’. Corona is the outer atmosphere of the Sun. It is present over a vast area starting from the Sun to millions of kilometres into space. The corona of the Sun is much hotter than its visible surface. The corona appears as an uneven glow of light around the Sun and seems like an illuminated crown. The Sun’s corona gives a million times less bright light than the photosphere, innermost layer of the Sun. Hence, it is mostly visible when the glow from the Sun is blocked off, as in case of a total solar eclipse.
What is the Corona of the Sun?
