Temperatures and Magnetic Fields of Our Sun
This composite of three wavelengths (304, 211, 171) shows us quiet different temperatures. From 50,000 K to 1.25 million K. Over imposed are the magnetic field lines. The fieldlines were calculated using the potential field source surface [PFSS] approximation, which specifies that the radial field at the model photosphere match a full-sun synoptic map and that the field at the upper boundary of the model at 2.5 Rsun be purely radial.  (Credit: NASA Solar Dynamics Observatory)

Temperatures and Magnetic Fields of Our Sun

This composite of three wavelengths (304, 211, 171) shows us quiet different temperatures. From 50,000 K to 1.25 million K. Over imposed are the magnetic field lines. The fieldlines were calculated using the potential field source surface [PFSS] approximation, which specifies that the radial field at the model photosphere match a full-sun synoptic map and that the field at the upper boundary of the model at 2.5 Rsun be purely radial.

(Credit: NASA Solar Dynamics Observatory)

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