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Contains:  Extremely wide field
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Pleiades wide field, 





    
        

            georgian82
Pleiades wide field

Pleiades wide field

Technical card

Resolution: 7774x5678

Dates:Nov. 24, 2017

Frames: 104x180"

Integration: 5.2 hours

Avg. Moon age: 5.38 days

Avg. Moon phase: 29.30%

Astrometry.net job: 1879634

RA center: 56.633 degrees

DEC center: 24.074 degrees

Pixel scale: 2.118 arcsec/pixel

Orientation: 90.305 degrees

Field radius: 2.832 degrees

Locations: Home, Healdsburg, California, United States

Description

Lens was stopped down to f/4 and the camera was put inside a homemade thermoelectric cooling box. Average sensor temperature was 25F.

I tried to stretch the data more to get more nebulosity but the noise becomes too much so I settled for more contrast instead.

Comments

Author

georgian82
georgian82
License: None (All rights reserved)
2952
Like

Revisions

  • Pleiades wide field, 





    
        

            georgian82
    Original
  • Pleiades wide field, 





    
        

            georgian82
    B
  • Pleiades wide field, 





    
        

            georgian82
    C
  • Pleiades wide field, 





    
        

            georgian82
    D
  • Final
    Pleiades wide field, 





    
        

            georgian82
    E

B

A bit more stretched to get nebulosity out and no noise reduction.

C

Data stretched more at the expense of noise.

D

focused more on contrast rather than surrounding nebulosity/dust. It hides the noise too =)

E

I used a combination of lightness mask and range mask to extract nebulosity while keeping noise relatively low

Sky plot

Sky plot

Histogram

Pleiades wide field, 





    
        

            georgian82