SDO: The Sun at 171 Å

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Source: NASA
This feed shows the Sun filtered to the wavelength of 171 angstrom. Images taken in this wavelength of light are useful for seeing magnetic arcs of plasma known as coronal loops. The brightest parts of the Sun's disc are where magnetic fields near the surface are strongest.

Compare this image to the magnetic field lines in the related feeds below. The multiview video lets you compare these views over the last week.

Feed Properties     
ID: SDO0171
Type: Image, Video
Image/Data Usage: SDO images are not copyrighted unless explicitly noted, and their use for public education is encouraged. See
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