Question

At what height above the sun solar coronal base starts?

Answer 1

A corona (Latin, 'crown') is an aura of plasma that surrounds the Sun and other stars. The Sun's ... The sun's corona is much hotter (by a factor from 150 to 450) than the visible surface of the Sun: the photosphere's average temperature is 5800 kelvins ... Coronal loops are the basic structures of the magnetic solar corona.