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NASA - NASA's SDO Sees Massive Filament Erupt on Sun
September 4, 2012
 

We are looking at a cool pic of the spectrometer of IRIS.

Working On IRIS Spectrometer › View larger
And here goes a caption and a credit courtesy of LMSAL.



What is a filament?

For answers to this and other space weather questions, please visit the Spaceweather Frequently Asked Questions page.

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Four images of a filament on the sun from August 31, 2012 are shown here in various wavelengths of light as captured by NASA's Solar Dynamics Observatory (SDO). › View larger
Four images of a filament on the sun from August 31, 2012 are shown here in various wavelengths of light as captured by NASA's Solar Dynamics Observatory (SDO). Starting from the upper left and going clockwise they represent light in the: 335, 171, 304 and 131 Angstrom wavelengths. Since each wavelength of light generally corresponds to solar material at a particular temperature, scientists can compare images like this to observe how the material moves during an eruption. Credit: NASA/SDO/AIA/GSFC



 
 
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