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Been sitting on this for months, Bi-Colour Bubble @ f10


Tim

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NGC 7635, or 'The Bubble nebula' in the constellation of Cassiopeia, is a fast expanding shell of gas, driven by stellar wind from a central massive star. Imaged here using a Celestron C11 Edge HD and Atik 460ex camera, in two narrowband wavelengths, Hydrogen alpha and Oxygen III. Sub lengths would be 30 mins, but I can't be bothered to go out to the obsy to find out how many of each just now :p


I actually gathered this data some time last year, and have sat looking at it and playing  about with it for months. I was hoping to complete the image with some Sulphur II filter data, but sadly that wasn't to be, so decided to post what I have.


Thanks for looking.


Tim


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How absolutely amazing. Your images with this combo are a testament to your skill and perseverance. You have shown that imaging at f10 really is doable and very successfully too. There are many doubters out there at those speeds for DSO images, I hope that they pop over here and see this, utterly breath-taking :icon_salut:  :icon_salut:  :icon_salut:

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Ok so time flies...

Sorry guys, got a few details wrong, just found the original subs in my obsy back up. Didn't realise so much time had passed with this stacked picture just sat on my laptop waiting to be processed.
Exposures taken in Dec 2012, with Atik 428ex binned 2x2 on an EQ6 mount. Around 28 x 20 minute subs for Ha and 21 x 20 mins for Oiii
Cheers
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