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Strongest sunspot in a decade

[Vigorous sunspot]

About this image

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. Further details are given in an article in the June 2001 NOAO Newsletter (currently only available in PDF format).

More: solar page.


Minimum credit line: M.Sigwarth, J.Elrod, K.S.Balasubramaniam, S.Fletcher NSO/AURA/NSF

Downloadable versions:
496 x 400 46 kb color JPEG (on this page)
600 x 484 67 kb color JPEG
600 x 484 296 kb 8-bit color TIFF
600 x 484 872 kb 24-bit color TIFF
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