inner core - very hot, very dense center of our planet. The ball-shaped core lies beneath the cool, brittle crust and the mostly-solid mantle.
radiative zone- the solar material is hot and dense enough that thermal radiation transfers the heat of the core outward through the Sun.
convectively zone- the outer-most layer of the interior. It extends from a depth of 200,000 km up to the visible surface of the Sun. Energy is transported by convection in this region. The surface of the convection zone is where light (photons) is created. This top layer is called the photosphere.
photosphere- the top layer of the convection zone, and the lowest layer of the split atmousphere
chromosphere- lowest layer of the Sun’s atmosphere, several thousand kilometres thick, located above the bright photosphere and below the extremely tenuous corona.
corona- outermost region of the Sun’s atmosphere, consisting of plasma (hot ionized gas).
