Hemisphere:  Northern  ·  Contains:  NGC 6503  ·  NGC6503
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NGC 6503, 


            Cedric Raguenaud
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Imaging telescopes or lenses: Skywatcher 300/1500

Imaging cameras: QHYCCD 183C

Mounts: Skywatcher EQ8 pro

Guiding telescopes or lenses: TS-Optics OAG

Guiding cameras: ZWO ASI120MM

Focal reducers: Baader MPCC Mark III Coma Corrector

Software: Gimp 2.10  ·  PixInsight 1.8 Ripley

Dates:May 29, 2020May 30, 2020May 31, 2020

Frames: 57x600" (gain: 16.00) -15C bin 1x1

Integration: 9.5 hours

Avg. Moon age: 7.78 days

Avg. Moon phase: 54.13%

Bortle Dark-Sky Scale: 3.00

Mean SQM: 21.71

Astrometry.net job: 3592538

RA center: 17h 49' 26"

DEC center: +70° 8' 53"

Pixel scale: 0.655 arcsec/pixel

Orientation: 81.792 degrees

Field radius: 0.226 degrees

Resolution: 2048x1413

Locations: ORCA Observatory, Near Matha, Charente-Maritime, France

Data source: Own remote observatory

Remote source: Non-commercial independent facility


NGC 6503 is a dwarf Spiral located in Draco, 17 million LY away. It is known to be at the edge of Local Void, a region in space that is virtually empty.



Cedric Raguenaud
License: Attribution-NonCommercial-ShareAlike Creative Commons

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NGC 6503, 


            Cedric Raguenaud