Thursday, February 14, 2013

The Sun on February 13, Part III

Here's an inverted image of the sun on February 13.  Filaments show as bright areas and swirling around active areas is clearly visible.


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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...