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Magnetic Structures

HMI171_20100523.jpg
 
 

This composite image shows the HMI magnetic field in blue and orange (indicating opposite polarity) aligned with the AIA 171 channel in extreme ultraviolet superimposed over it (May 23, 2010). The juxtaposition is especially effective at showing how the arcs that we observe in UV light emerge from regions of strong magnetic field.

Search Tag(s): magnetogram, 171