Sunday, April 7, 2013

The Sun on April 5, 2013

Despite this being a relatively quiet period for solar activity, there's still plenty to see on our favorite star.
AR 1711, with the dark spot, is in the center of this image




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The Tulip Nebula—Hubble Palette

This image is just over 3 hours of integration on the Tulip Nebula. The image was stacked with star processing, initial histogram stretch, a...