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ngc 7331

(click on the image for 4K resolution)

            


 
Object:             Ngc 7331 & Deer Lick group,  galaxies in Pegasus.
Telescopes:     Luminance: 
Astrograph 400 f/4 Newton(3" 1.15x coma corrector up to 1850mm fl). Paramount ME.  ASI 6200 MM cmos.  Chroma L filter.
                         Color:          Astrograph  250 f/4 Newton
.  Paramount ME.  Atik 16200 ccd.  Chroma RGB filters.
Exposures:        L : 220 x 10' ( 36:40 ) 
                          R:   56 x 5'   (   4:40 ) 
                          G:   42 x 5'   (   3:30 )  
                          B:   69 x 5'   (   5:45 )
                             Total:   50:35 hours
Resolution:       0.55"/pixel.   FWHM after integration: 2.4" 
Date:                July - December  2020
Sites:                
Luminance:  Sagan Observatory       Las Rozas  (Spain)     - mag 4.5 suburban skies -
                         Color:           La Sagra Observatory  Puebla de Don Fadrique (Spain)    - mag 7 professional observatory skies -
Processing:
Bias, Darks & Flat calibration
DBE
Photometric Color Calibration
Deconvolution
Histogram & Curves adjustments (intensity, saturation)
Noise reduction: ACDNR

Software:
PixInSight