The temperature in the corona is a blistering million or so degrees celsius.
The solar corona is much cooler than the sun surface.
Tech science sun solar jets plasma one of the biggest mysteries of the sun is why its upper atmosphere also known as the corona is over 200 times hotter than its surface.
Clear evidence now suggests that the intense heat of the sun s atmosphere depends on explosive bursts not continuous heating.
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.
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 temperature in the corona is a blistering million or so degrees celsius.