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Javier Gómez Laina                                                                                                        


            

About the object:
NGC 7640 is a barred spiral and appears to have undergone an interaction of some sort, with bizarre shaped arms.
 
Object:             ngc7640   - galaxy -
Telescope:      
COMELLAS  telescope  (250 f/4.8 Newton). Lumicon coma corrector.
Cameras:          Lum:   Artemis ART4021
                         RGB:  Canon 350d (infrared filter removed)
Filters:              Lum & RGB:  idas LPS
Exposures:       Lum:   297 x 300"     (24:45 total) 
                         RGB:  211 x 300"     (17:35 total)
Resolution:       1.28"/pixel 
Date:                 2 - 6  Nov  2007
Guiding:            MX716 on Off-Axis Guider
Processing:
Bias, Darks & Flat calibration
SDMask combining
Histogram, Curves and wavelets adjust
ACDNR noise reduction in PI

Software:
MaximDL, PixInSight, PhotoShop.