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Contains:  Great Nebula in Andromeda, M 110, M 31, M 32, NGC 205, NGC 221, NGC 224, The star νAnd
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Andromeda Galaxy - M31 - 300mm - 0.75 Crop, 



    
        

            Matt Stahl
Andromeda Galaxy - M31 - 300mm - 0.75 Crop
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Andromeda Galaxy - M31 - 300mm - 0.75 Crop

Technical card


Dates:Oct. 13, 2018

Frames: 88x90" ISO1600 (gain: 0.58)

Integration: 2.2 hours

Flats: ~31

Bias: ~200

Avg. Moon age: 4.41 days

Avg. Moon phase: 20.46%

Bortle Dark-Sky Scale: 5.00

Mean FWHM: 14.20

Temperature: 6.00


Basic astrometry details

Astrometry.net job: 2315191

RA center: 0h 43' 6"

DEC center: +41° 23' 20"

Pixel scale: 3.161 arcsec/pixel

Orientation: 353.984 degrees

Field radius: 2.058 degrees


Resolution: 3901x2599

Locations: Charlestown, Charlestown, RI, United States

Data source: Backyard

Description

This lens at 300mm wide open (f/5.6) leaves something to be desired; the stars even at center of field are oddly shaped. Next time I'll stop down to f/8.

Comments

Author

mgstahl
Matt Stahl
License: Attribution-NoDerivs Creative Commons
3610
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Revisions

  • Andromeda Galaxy - M31 - 300mm - 0.75 Crop, 



    
        

            Matt Stahl
    Original
  • Final
    Andromeda Galaxy - M31 - 300mm - 0.75 Crop, 



    
        

            Matt Stahl
    B

B

Description: Processed in PixInsight, 0.75 crop

Sky plot

Sky plot

Histogram

Andromeda Galaxy - M31 - 300mm - 0.75 Crop, 



    
        

            Matt Stahl