NGC253 in Sculptor
with 10" f/3.9 Astrograph
Uploaded 11/1/24

 

            
This is a set of images
            of the large and detailed galaxy NGC253 in Sculptor. The left
            panel is a standard deep shot, and on the right one that has
            been tilt rectified by removing the tilt distortion digitally.
            Now you can see what the galaxy would look like face on. The
            normal star field was added back in after rectification. Now
            you can see clearly several features not easily visible in the
            normal view such as the spiral structure seen in the blue arms,
            an oval yellow core like a primitive barred spiral and that the
            diffuse glow is all around the periphery of the galaxies disk.

            
Technical Data: NGC253
            + Rectified inclination, 10/10/24, 10" f/3.9 GSO Newtonian,
            2.5 hours total, Payson,Az

            
Select an image size for a larger view:

1600 x 1290



            
Select an image size for a larger view:

1600 x 1290


Instrument:  10" f/3.9 Orion Astrograph Newtonian with Baader MPCC
Mount:  Astrophysics 1200 QMD
CCD Camera:  ATIK 16200 
Guider: ASI290  w/80mm WO Zenithstar 81 piggyback refractor
Exposure:  2.5 hours RGB
Astronomik  RGB Combine Ratio:  1: 1.05: 1.5
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 3 arcsec , Transparency 9/10
Outside Temperature:  45 F
CCD Temperature:  -30 C
Image Processing Tools: 
Maxim DL6:  Calibration, PixInsight:  All Remaining processing, Photoshop CS2: Production finishing 

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