NGC205 - Companion to Andromeda Galaxy
with 10" f/3.9 Astrograph
Uploaded 11/3/16

 
I
            had not imaged this bright elliptical galaxy for over a decade,
            back when I was using an ST-7 CCD camera. This new image is far
            deeper, and easily reveals the gravitationally warped wings on
            this satellite galaxy which i brought out more clearly in the
            second histogram equalized image. At lower left in these images
            is part of M31.

            
Select an image size for a larger view:

1290 x 960

            
Histogram equalized view.  This is a 
mathematical function which forces 
the histogram to have nearly equal values
for each brightness level.
Note the faint wing like extensions
from the upper left and lower right
which represent the sprays of stars
thrown out of orbit by the huge primary
galaxy M31 by its gravitational influence.

Select an image size for a larger view:

1024 x 768


Instrument:  10" f/3.9 Orion Astrograph Newtonian with Baader MPCC
Mount:  Astrophysics 1200 QMD
CCD Camera:  SBIG 10XME NABG with Enhanced Water Cooling
Guider: Meade DSI Pro  w/80mm piggyback refractor
Exposure:  1s
AstroDon RGB Combine Ratio:  1: 1.05: 1.2
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 3 arcsec , Transparency 9/10
Outside Temperature:  25 F
CCD Temperature:  -20 C
Image Processing Tools: 
Maxim DL6:  Calibration, deblooming (Starizona Debloomer), aligning, stacking
PixInsight:  Curves, Deconvolution
Photoshop CS2:  Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup

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