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The bubble nebula. Not much to add about the target itself as it is already popular enough.
A combination of HOO shot with the ASI1600MMC + Astronomik narrowband filters through the 200mm newtonian tube removed from the dobson base and put on the EQ6-R.
About 6h of exposure through the Oxygen filter and about 9h through the Hydrogen filter.
Clicking on the pictures will redirect to the astrobin images where you can watch them in full resolution.
Thanks for watching and clear skies to you too!
By lux eterna
Last November I imaged the Bubble on a few occations with my Meade LX200-ACF and Nikon D7000 on SW HEQ5 Pro, guided with a standalone Nexguider. I managed some 10 hours under pretty good skies, plus 2 hours with H-alpha filter from my small town backyard. So almost 12 hours together (after rejecting every sub with just the slightest defect like non-circular or diffuse small stars).
Registering (aligning) was done in Registar, and stacking & processing in PS. I also used the Straton software that removes (most of) the stars, after initial stretching, then I put them back using the "lighten" blending mode.
C & C most welcome
Well, I can't remember the last time I actually posted an image. Not this year & I don't remember anything of last year either! Whilst I've been collecting data over that period, I realise I get more of a kick out of the whole techy side of putting the bits together, automating it all & capturing the data. When it comes to processing I never seem to have the time & patience & just end up frustrating myself overcooking things when I do.
I thought it about time to have another go & soon realised anything I actually had once known was long forgotten. So, I've been reading through Warren Keller's Inside PixInsight & thought I'd practice on some 12.5 hrs of data on NGC7635 collected over the 5th - 10th of this month. As I'm about to post this I can already see quite a few things need sorting out in the next version & I think I need to go back & start again but hey ho, I'll post it anyway otherwise it'll be next year before I know it! I've also got 14.5 hrs of SII & over 15 hrs of OIII plus a couple of hours or so each of RGB for the stars. I've thrown more away! So you can imagine, I've no idea when I'll get around to the full image! Tips & critique welcome as usual please...
Scope: RC8 with AP 0.67 reducer
Camera: Atik 314L+
Filter: Astrodon 5nm Ha
Subs: 50 x 900
Processed in PixInsight
The result of one of my imaging sessions from Kelling Heath Autumn Equinox star party NGC 7635 The Bubble Nebula in Cassiopeia Imaged using Atik 314L monochrome CCD camera and William Optics FLT-110 refractor on NEQ6 Pro SynScan mount 10 x 300 second subs in H-alpha