Peering though layers of the Sun Using two STEREO instruments
that view the Sun in extreme UV light, we can combine frames
taken at about the same time and see features from both. The
focus of interest here iss an active region coming around the
edge of the Sun on February 23, 2008. We are comparing the
emission which is most hot in 286 A and (mostly) relatively cool
in 304 A so you can see their relative locations (one wavelength
is represented by yellow in the movie, the other is represented
by orange). Understanding why the sun is hot or cool in
different locations is a big challenge in solar physics. This
technique is a way to visualize how different solar features are
revealed two of the four wavelengths of light taken by the EUVI
instrument on STEREO. Last Revised: May 17, 2013 17:35:01 UTC
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