Hemisphere:  Northern  ·  Constellation: Pegasus (Peg)  ·  Contains:  NGC 7317  ·  NGC 7318  ·  NGC 7319  ·  NGC 7320
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3 seconds to the Stephan's Quintet, 


            Lorenzo Palloni
3 seconds to the Stephan's Quintet
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3 seconds to the Stephan's Quintet

Acquisition type: Lucky imaging

Technical card

Imaging telescopes or lenses: GSO 10" f/4 Imaging Newtonian

Imaging cameras: ZWO 224MC

Mounts: SkyWatcher NEQ6 PRO

Guiding telescopes or lenses: SVBONY 60mm Guidescope 240mm f/4

Guiding cameras: ZWO ASI 120 MM-S


Dates:Sept. 12, 2020Sept. 13, 2020Sept. 14, 2020Sept. 15, 2020Sept. 16, 2020Sept. 17, 2020Sept. 18, 2020

SVBONY UV IR CUT: 1870x6" (gain: 350.00) 28C
SVBONY UV IR CUT: 4002x3" (gain: 450.00) 28C
SVBONY UV IR CUT: 4678x3" (gain: 450.00) 29C
SVBONY UV IR CUT: 3514x3" (gain: 450.00) 30C

Integration: 13.3 hours

Darks: ~51

Flats: ~41

Avg. Moon age: 18.94 days

Avg. Moon phase: 9.93%

Bortle Dark-Sky Scale: 9.00

Basic astrometry details

Astrometry.net job: 3888860

RA center: 22h 35' 58"

DEC center: +33° 57' 28"

Pixel scale: 0.767 arcsec/pixel

Orientation: 342.454 degrees

Field radius: 0.116 degrees

Resolution: 830x707

Locations: Casa, centro città, Prato, Po, Italy

Data source: Backyard


This is by far the most difficult subject i tried under the heavy light polluted sky of my city.
I tried 3 seconds exposure for 14.000 subs, and this is the result.


Sky plot

Sky plot


3 seconds to the Stephan's Quintet, 


            Lorenzo Palloni