AMATEUR ASTRONOMY PAGES
Javier Gómez Laina                                                
                                                                    M20 in Sagittarius
(click on image for a larger size)
            

Object:             M20 "Trifid nebula"    - emission & reflection nebula -    
Telescope:       COMELLAS  telescope (250 f/5.4 Newton) TV Paracorr, LPS filter.
Camera:           Canon 350d  modified (infrared filter removing)
Exposures:       61 x 300"        (5:05 total exposure)
ISO:                 400
Date:                25 & 30 Jul 2006
Guiding:           MX716 on 2x barlowed TV-76
 

Processing:

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


Software:
ImagesPlus, PixInSight, PhotoShop.