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I agreeImaging telescope or lens:Vixen ED80SF
Imaging camera:Canon 550D
Mount:CELESTRON CG5-GT
Guiding telescope or lens:Vixen Finderscope 9x50
Guiding camera:Orion StarShoot AutoGuider
Focal reducer:Orion Field Flattener for Short Refractors
Software:O'Telescope BackyardEOS, PixInsight, PHD Guiding
Resolution: 5168x3433
Astrometry.net job: 186957
RA center: 305.525 degrees
DEC center: 40.285 degrees
Pixel scale: 1.484 arcsec/pixel
Orientation: -175.695 degrees
Field radius: 1.279 degrees
Because of the subject being Sadr, I created [semi-artificial] star diffraction spikes on this image with my APO refractor back in June, 2013. I stretched two wires over the objective in a crosshair pattern to simulate the secondary spider of a Newtonian.
Image details:
Data acquired 2013-06-28
21x 4min, ISO800
Calibrated with dark, flat, and bias frames
Equipment:
Vixen ED80sf 80mm APO refractor
Celestron CG-5 ASGT mount
Orion SSAG autoguider + 50mm guide scope
Canon T2i 550D DSLR (Baader IR modded)
Orion Field Flattener
Software:
Image acquisition with BackyardEOS
Guiding with PHD
Calibration/alignment/integration and post-processing with PixInsight
Comments