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Javier Gómez Laina                                                                                                         ngc 3893

            


 
Object:             ngc3893  in  Ursa Major
Telescope:      
COMELLAS  telescope  (250 f/8.3 Newton). Lumicon 1.8x  multiplier/corrector.
Camera:           Artemis ART4021.   IDAS LPS (L) & Astronomik (RGB) filters.
Exposures:       L :   67 x 600"     ( 11:10 total) 
                         R:      8 x 900"     (  2:00 )
                         G:    10 x 900"     (  2:30 )
                         B:    10 x 900"     (  2:30 )
Resolution:       0.54"/pixel 
Guiding:            MX716 on Off-Axis Guider
Date:                 20 Mar - 18 May  2009
Site:                  Sagan Observatory  Las Rozas  (Spain)     - mag 4.5 suburban skies -
Processing:
Bias, Darks & Flat calibration
2x resample for drizzling
Sigma clipping combining
Deconvolution
Curves adjusts
LRGB combining
ACDNR noise reduction


Software:
MaximDL, PixInSight