![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)](http://25.media.tumblr.com/c37b9f27078e40a3ac07f8528d1afba9/tumblr_mh75d6bRwd1qc6j5yo1_500.jpg)
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)
