/sci/ - Science & Math

>>7678983
The high temperature of the corona is a puzzle to solar physicists since the bright 'surface' of the Sun is only about 5700 C and therefore not able to heat the corona to over a million degrees by any of the known thermodynamic methods - conduction, convection, radiation.

The thin region of temperature increase from the chromosphere to the corona is known as the transition region and can range from tens to hundreds of kilometers thick. An analogy of this would be a light bulb heating the air surrounding it hotter than its glass surface. The second law of thermodynamics would be broken.

en.wikipedia.org/wiki/List_of_unsolved_problems_in_physics
en.wikipedia.org/wiki/Corona#Coronal_heating_problem
en.wikipedia.org/wiki/Portal:Physics