Abstract the processes that heat the solar and stellar coronae to several million kelvins compared with the much cooler photosphere 5 800 k for the sun are still not well known1.
The solar corona is much cooler than the sun surface.
This solution to the coronal heating mystery was presented at a media briefing on april 28 2015.
But the temperature at the sun s surface the source of that energy is a relatively balmy 5 500 degrees.
But the temperature at the sun s surface the source of that energy is a relatively balmy 5 500 degrees.
The temperature in the corona is a blistering million or so degrees celsius.
The temperature in the corona is a blistering million or so degrees celsius.
Clear evidence now suggests that the intense heat of the sun s atmosphere depends on explosive bursts not continuous heating.