Strongest sunspot in a decade
M.Sigwarth, J.Elrod, K.S.Balasubramaniam, S.Fletcher NSO/AURA/NSF · Download full size image
Strongest sunspot in a decade
The most vigorous sunspot activity in a decade is shown here at two different wavelengths, recorded at the Dunn Solar Telescope at the Sacramento Peak Observatory. Posted on: 28 Feb, 2005
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