Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  IC 1310  ·  NGC 6871  ·  NGC 6888  ·  The star 25Cyg  ·  The star 27Cyg  ·  The star 28Cyg  ·  The star 29Cyg  ·  The star 34Cyg  ·  The star 35Cyg  ·  The star 36Cyg  ·  The star 40Cyg  ·  The star Sadr (γCyg)
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Sadr Region (Canon EOS Ra), 


            Trevor Jones
Sadr Region (Canon EOS Ra)
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Sadr Region (Canon EOS Ra)

Technical card

Imaging telescopes or lenses: William Optics RedCat 51 APO

Imaging cameras: Canon eos ra

Mounts: SkyWatcher HEQ5 goto synscan

Guiding telescopes or lenses: Williams Optics William Optics 50mm guiding scope

Guiding cameras: ZWO ASI290 Mini

Software: Astro Photography Tool APT  ·  photoshop cc  ·  DeepSkyStacker (DSS) Deepskystacker 3.3.6

Filters: Radian Telescopes 2" Triad Ultra Quad-Band Narrowband filter

Dates:May 12, 2020

Frames: 15x300"

Integration: 1.2 hours

Avg. Moon age: 20.17 days

Avg. Moon phase: 70.45%

Basic astrometry details

Astrometry.net job: 3517070

RA center: 20h 15' 57"

DEC center: +38° 46' 15"

Pixel scale: 13.347 arcsec/pixel

Orientation: 61.957 degrees

Field radius: 4.889 degrees

Resolution: 2200x1455

Locations: My Backyard, St. Catharines, Ontario, Canada

Data source: Backyard


Here is the Sadr region in Cygnus using the new full-frame Canon EOS Ra. This sensor maximizes the wide 250mm field of view of the RedCat.

You almost wouldn't know my backyard is a Bortle Scale Class 7 when the Triad Ultra filter is in place. Super happy with this combo.


Sky plot

Sky plot


Sadr Region (Canon EOS Ra), 


            Trevor Jones