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Iris Nebula (Caldwell 4) - reworked, 



    
        

            Henning Schmidt
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Iris Nebula (Caldwell 4) - reworked

Getting plate-solving status, please wait...
Iris Nebula (Caldwell 4) - reworked, 



    
        

            Henning Schmidt
Powered byPixInsight

Iris Nebula (Caldwell 4) - reworked

Acquisition details

Dates:
Aug. 15, 2015
Frames:
Hutech IDAS 1.25" LPS P2: 85×120(2h 50′) ISO6400 -50°C
Integration:
2h 50′
Darks:
100
Bias:
200
Avg. Moon age:
0.80 days
Avg. Moon phase:
0.72%

RA center: 20h59m50s.92

DEC center: +68°0633.0

Pixel scale: 4.311 arcsec/pixel

Orientation: -92.701 degrees

Field radius: 1.846 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 2565x1710

File size: 4.3 MB

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.
Reworked during cloudy nights.

Comments

Revisions

  • Iris Nebula (Caldwell 4) - reworked, 



    
        

            Henning Schmidt
    Original
  • Final
    Iris Nebula (Caldwell 4) - reworked, 



    
        

            Henning Schmidt
    C

Sky plot

Sky plot

Histogram

Iris Nebula (Caldwell 4) - reworked, 



    
        

            Henning Schmidt