Friday, October 24, 2014

AR2192 Continues to Evolve




AR2192 continues to grow and evolve as it moves across the center of the sun's disk. An X-Class flare from this spot would likely bring significant auroral activity. This image was taken through a haze of cloud, so the contrast is fairly washed out in terms of fine surface detail.

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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...