M31 Region 
Nearby Spiral Galaxy
Uploaded 9/18/25


 


            
A deep exposure of the
            Andromeda Galaxy on a very dark night at atlitude, near the zenith,
            and with a fast lens. Not only can you see the star sprays on
            the ends of the spiral arms from the interaction with the companion
            elliptical galaxies, but the entire field is filled with faint
            galactic cirrus. Even a hint of red hydrogen is just to the left
            of the galaxy in this image.


            
Technical Data: Samyang
            135mm f/2 @ f/2.4, ASI2600mm, RGB = 4 hours total, Happy Jack,
            Az.


            


            
Select an image size for a larger view:

1400 x 1200




Instrument:  Samnyang 135mm f/2 @ f/2.4
Mount:  Home Made GEM
Camera:  Color CMOS ASI2600 MC Pro
Guider: ASI mini  w/50mm piggyback refractor
Exposure:  4h ( 5 min subs)
Location:  Happy Jack, Arizona, Elevation:  7000 ft.
Sky:  Seeing FWHM = 2 arcsec , Transparency 9/10
Outside Temperature:  55 F

Image Processing Tools: 
Maxim DL6:  Calibration
PixInsight:  Alignment, Stacking, Star Removal
Photoshop CS2:  Curves, Color Correction, Cleanup

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