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Contains:  Iris Nebula, NGC 7023
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Iris Nebula (Caldwell 4), 



    
        

            Henning Schmidt
Iris Nebula (Caldwell 4)
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Iris Nebula (Caldwell 4)

Technical card


Dates:Aug. 15, 2015

Frames: 85x120" ISO6400 -15C

Integration: 2.8 hours

Darks: ~100

Bias: ~200

Avg. Moon age: 0.80 days

Avg. Moon phase: 0.72%


Basic astrometry details

Astrometry.net job: 3332790

RA center: 20h 59' 50"

DEC center: +68° 6' 32"

Pixel scale: 2.155 arcsec/pixel

Orientation: 92.637 degrees

Field radius: 1.845 degrees


Resolution: 5124x3426

Locations: Home observatory, Rostock, Mecklenburg-Vorpommern, Germany

Data source: Backyard

Description

Iris Nebula (Caldwell 4, NGC 7023) on 15.08.2015; 85 frames at 120 sec, ISO 6400, camera: Canon EOS 700Da cooled -15°C, objektive: Skywatcher Esprit-80ED.

Comments

Author

HenningSchmidt
Henning Schmidt
License: None (All rights reserved)
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Iris Nebula (Caldwell 4), 



    
        

            Henning Schmidt