Posted in Solar Observations, Solar Observations 2005 Tags: active regions, ETX70-AT, NOAA 10772, NOAA 10773, NOAA 10775, penmubrae, solar sketches, umbrae, white light
Posted in Solar Observations, Solar Observations 2005 Tags: active regions, ETX70-AT, first light, NOAA 10730, NOAA 10733, NOAA 10734, NOAA 10735, solar disk, Sun, sunspots, white light filter
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PCW Memorial Observatory - Erika Rix 