AMATEUR ASTRONOMY PAGES home                                   Dumbbell nebula
Javier Gómez Laina                                                                                                         (click on the image for a full resolution view)


Object:             M27     - planetary nebula -    
COMELLAS  telescope  (250 f/4.8 Newton). Lumicon coma corrector.
Camera:           Artemis ART4021
Filters:              Luminance: Ha ;   mapped colour  Ha : Ha-OIII : OIII
Exposures:       Ha:  64 x 900"     (16:00 total) 
                        OIII:  36 x 900"     (  9:00 total)
Resolution:       1.28"/pixel   (largest size)
Date:                 30 Jul -  9 Aug  2007
Guiding:            MX716 on Off-Axis Guider


Bias, Darks & Flat calibration
SDMask combining
Histogram, Curves and wavelets adjust
LRGB combine with synthetic green channel (Ha-OIII)
ACDNR noise reduction in PI

MaximDL, PixInSight, PhotoShop.