AMATEUR ASTRONOMY PAGES
Javier Gómez Laina                                                
                                                                      ic1805  in  Cassiopeia
                  (click on image for a larger size)



Object:             ic1805     - emission nebula -

Optics:             TeleVue TV-76  with 0.8x  reducer (f 384mm). Astronomik H-alpha & IDAS LPS filters.
Camera:           Canon 350d  modified (infrared filter removing)
Exposures:       38 x 500" Ha  +  40 x 300" RGB  ;   8h:37' total exposure
ISO:                 800
Date:                10 & 11 Dec 2005
Mount:              Home made aluminum fork controled by Mel Bartel's design system.
Guiding:           MX716 on
250 f/4.8 Newton

 

Processing:

Darks & Flat calibration
SDMask combining
Dynamic Background Extraction (sky gradient correction)
Digital Development Processing (DDP)
Curves adjust
LLRGB combining (Ha as luminance)

Software:
ImagesPlus, PixInSight, PhotoShop.