AMATEUR ASTRONOMY PAGES
Javier Gómez Laina                                                
                                                           M31  -  The Great Andromeda Galaxy
                   


Object:             M31     - spiral galaxy -
Optics:             TeleVue TV-76  with 0.8x  reducer (f 384mm). IDAS LPS filter.
Camera:           Canon 350d  modified (infrared filter removing)
Exposures:       33 x 1000" , 13 x 900", 10 x 60" ;   12h:35' total exposure
ISO:                 200
Date:                14 Oct , 13 - 14 Nov 2006
Mount:              Home made aluminium fork.
Guiding:           MX716 on 250 f/4.8 Newton
 

Processing:

Darks, Bias & Flat calibration
SDMask combining
Dynamic Background Extraction (sky gradient correction)
Wavelets filter
Masked Histogram and Curves adjust


Software:
ImagesPlus, PixInSight, PhotoShop.