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Important notice about the deactivation of the STEREO ftp
server
Important notice about the STEREO redirects
Important notice about STEREO Behind
3D Active Region - March 23, 2007
An active region (brighter area) on the Sun from March 23, 2007. The 3D image was created from two spacecraft by combining images in three extreme ultraviolet wavelengths: 304, 171 and 195 angstroms from each. A coronal hole (darker area) is right of center.
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