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Published on Sep 13, 2012
Looking at 26 hours, from September 11, 2012 12:00 UT to September 12, 2012 14:00 UT, in the wavelengths 171 and 304, we can see some beautiful coronal loops and spurting plasma.
The corona is made up of loops of hot gas that arch high above the Sun's surface. These loops can have a wide range of temperatures, many reaching several million degrees Kelvin.
Coronal loops are found around sunspots and in active regions. These structures are associated with the closed magnetic field lines that connect magnetic regions on the solar surface. Many coronal loops last for days or weeks but most change quite rapidly.