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Contains:  M 31, Great Nebula in Andromeda, NGC 224, M 32, NGC 221, M 110, NGC 205, The star νAnd, The star 32And
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M31, M32 & M110 w/ 200mm & Astrotracer, 





    
        

            AlenK
M31, M32 & M110 w/ 200mm & Astrotracer

M31, M32 & M110 w/ 200mm & Astrotracer

Technical card

Imaging telescope or lens:SMC Pentax-M 200mm F/4.0

Imaging camera:Pentax K-3 II

Resolution: 1920x1282

Dates:Aug. 3, 2019

Frames: 260x20" ISO3200

Integration: 1.4 hours

Avg. Moon age: 2.75 days

Avg. Moon phase: 8.34%

Mean SQM: 20.90

Astrometry.net job: 2959569

RA center: 0h 43' 7"

DEC center: +41° 19' 8"

Pixel scale: 13.096 arcsec/pixel

Orientation: 249.343 degrees

Field radius: 4.199

Data source: Traveller

Description

The view here has been inverted compared to how the area is seen in the northern hemisphere but that is my preferred orientation since it makes the spiral nature of M31 more obvious, at least to my eyes! No flats, bias or dark frames were used but I aggressively dithered and used kappa-sigma clipping during stacking. Camera on tripod only with tracking using Astrotracer (built in to camera). Shot at f/5.6 over two nights.

Comments

Author

AlenK
AlenK
License: None (All rights reserved)
2840
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Revisions

  • M31, M32 & M110 w/ 200mm & Astrotracer, 





    
        

            AlenK
    Original
  • M31, M32 & M110 w/ 200mm & Astrotracer, 





    
        

            AlenK
    F
  • Final
    M31, M32 & M110 w/ 200mm & Astrotracer, 





    
        

            AlenK
    G

Sky plot

Sky plot

Histogram

M31, M32 & M110 w/ 200mm & Astrotracer, 





    
        

            AlenK