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I agreeImaging telescopes or lenses:Vixen ED80SF
Imaging cameras:Canon 550D
Mounts:CELESTRON CG5-GT
Guiding telescopes or lenses:Vixen Finderscope 9x50
Guiding cameras:Orion StarShoot AutoGuider
Focal reducers:Orion Field Flattener for Short Refractors
Software:PHD Guiding , PixInsight , O'Telescope BackyardEOS
Astrometry.net job: 133835
RA center: 19h 59' 40"
DEC center: +22° 41' 20"
Pixel scale: 1.488 arcsec/pixel
Orientation: 0.288 degrees
Field radius: 1.292 degrees
Resolution: 5202x3465
Messier 27, the Dumbbell Nebula, in Vulpecula
This is my first real attempt at using PixInsight to process decent data, not going back! M27 was an afterthought the night this was captured (2013-06-07), and I'm glad I grabbed 5 quick frames. This very bright planetary nebula is visible in binoculars even in semi light-polluted skies.
20 minutes integration time
5x4min ISO800 stacked exposures
25 dark frames, 25 flats, 25 flat-darks for calibration
Vixen ED80sf 80mm APO refractor
Celestron CG-5 ASGT mount
Orion SSAG + 50mm finder guide scope
Canon T2i 550D DSLR (IR mod)
Orion Field Flattener
Image acquisition with BackyardEOS
Guiding with PHD
Stacked in DSS
Post-processed with PixInsight in Linux
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