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Imaging telescopes or lenses: Altair Astro 72edf deluxe
Imaging cameras: Altair Hypercam 183M PRO TEC
Mounts: DarkFrame Optics StellarDrive 6
Guiding telescopes or lenses: Altair Astro 60 mm guidescope
Guiding cameras: Altair GPCAM3 178M
Focal reducers: Altair Astro 0.80 Focal Reducer-Flattner
Software: PHD Guiding 2 · EQMOD EQAscom · Adobe CS6 · AstroPixel Processor
Filters: Baader LRGB 2"
Accessory: Pegasus Astro Pocket Powerbox · Pegasus Astro FocusCube
Dates:June 28, 2019 , June 29, 2019 , June 30, 2019 , July 1, 2019 , July 2, 2019 , July 4, 2019
Frames:
Baader B 2": 113x90" (gain: 381.00) -15C bin 1x1
Baader G 2": 51x180" (gain: 381.00) -15C bin 1x1
Baader L 2'': 677x45" (gain: 381.00) -15C bin 1x1
Baader R 2": 53x210" (gain: 381.00) -15C bin 1x1
Integration: 16.9 hours
Darks: ~50
Flats: ~50
Bias: ~200
Avg. Moon age: 22.88 days
Avg. Moon phase: 7.97%
Bortle Dark-Sky Scale: 6.00
Astrometry.net job: 2784149
RA center: 23h 20' 30"
DEC center: +61° 38' 2"
Pixel scale: 2.318 arcsec/pixel
Orientation: 229.839 degrees
Field radius: 1.188 degrees
Resolution: 1824x1247
Locations: Backyard, Slough, Berkshire, United Kingdom
Data source: Backyard
I was up for a go at bubble nebula and saw that I could manage to squeeze the Cassepoia star cluster and NGC7538 in there, making it worthwhile to spend some extra time imaging. I took a whole load of L's over the first three night amounting to around 9 hours, then almost the same again over the coming few days to gather the RGB data. After a couple of attempts combining the data, I decided to stick close to the results of APP's star calibration to get the overall looking good without messing up the stars too much. quite like it in the end, the bubble looks more natural than highly saturated.
NGC7635 The bubble nebula : The bubble is created by the stellar wind from the young, magnitude 8.3, massive central star
NGC7538 : Home to the biggest discovered protostar - 300x the size of the solar system!
NGC7654 , M52 Casseopia Salt-n-peper cluster : Discovered by Charles Messier on September 7, 1774
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