Obviously not by heat transfer; heat, of course, will only flow from hotter objects to colder objects. There are different theories about how the corona heats up; currently, it isn't known for sure which of these theories is correct.
The Core, Radiative Zone, Convection Zone, Photosphere, Chromosphere, Corona. On the Suns suface there are Solor Flares, Sun Spots, and Prominences
ChRoMoSpHeRe
Chromosphere and coronaThe three layers of the suns atmosphere are the photosphere, chromosphere, and the corona.
core-photosphere-chromosphere-corona
chromosphere and corona
Photosphere, Chromosphere, and Corona.
The photosphere, the chromosphere, and the corona
Corona
The layers of the sun's atmosphere are the photosphere, (Greek for Light) the chromosphere, (Greek for color), and the Corona (Greek for Crown). The photosphere is the inner layer of the sun's atmosphere. It creates light. The chromosphere is the middle layer. It has a reddish glow. The corona is the outer layer. It is only visible during an eclipse. The Sun has three layer the Photosphere,chromosphere, and the corona Photosphere is the inner layer of the sun atmosphere The chromosphere is the middle layer of the sun and the Corona is the outer layer of the sun
photosphere, chromosphere, corona
the core the photosphere the chromosphere the corona
Photosphere, chromosphere, and corona