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WIP - Propeller Nebula


Helen
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I was looking for something a bit different tonight and so got out my Cosmic Challenge book (great book :grin: ). In the monster-scope section I found Simeis 57 - the Propeller nebula and thought it was worth a go as its in a good bit of sky (Cygnus). Here's the result of the first few (7) 5 minutes subs. It made me smile :smiley: I'll add some more data tomorrow and reprocess, and may well see about getting some Ha to act as luminance with this one-shot colour.

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Helen

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  • 2 weeks later...

Very nice start Helen :) One for the list I think :) Can you tell me how big it is in arcmin, please - or what you focal length was so I can work it out? Is that an uncropped 460 image?

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