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Wide-field image of M55/Bubble nebula and surrounding nebulosity in H-alpha. Total exposure was 14 hours in 1x1 and 2x2 bin (900 sec. individual frames). Taken in the course of 6 nights using NS11/Hyperstar3 and QHY10 with 35nm. Baader H-alpha filter.

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Comment by Ian G on November 16, 2011 at 5:47am

I used to have the original Hyperstar. The star shapes were never good. Their ver.3 is much better optically and it you can collimate pretty easily. As for the picture, I really want to add color one of these days:) Thanks for looking!

Comment by Marc Basti on November 15, 2011 at 5:31pm

That fov is amazing w/the hyperstar. 900s, those stars are nice. Cool pic, Marc

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