Spectra of sunspot NOAA 10008
About this image
Background image from the NSO Kitt Peak Vacuum Telescope at 869nm showing the disk position of sunspot NOAA 10008 on 29 June 2002. The two inset images show continuum maps of the spot region, with the penumbral bins and spot azimuth directions shown in the left inset. The penumbral spectra were binned in 16 azimuthal bins. An azimuth of 90 degrees is defined as toward the center of the solar disk.
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