Messier M42 NGC1976 Orion Nebula and NGC1977 Running Man Nebula - 14/04/2012 (Processed stack) Prime focus of a borrowed 8" f/4 Newtonian. You can see the beginings of coma distortion on stars half way from the centre increasing toward the corners and shows why short focal ratio Newtonians need these to flatten the field. This was late in the year for M42 so it was low in my western skyglow and lacks detail and definition and the running man nebula in the star group to the ight is barely visible. Also see cropped version. DeepSkyStacker 3.3.2 Stacked 85% of 6 Images ISO 800 120 Sec, 32 DARK, 0 BIAS, 0 FLATS, Post-processed by Photoshop CS5 Telescope - Bintel BT200 f/4.0 Newtonian with no Coma corrector (borrowed from Stephen Boyd), Hutech IDAS LPS-P2 filter, Canon 400D DSLR, Ambient 15C. Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Star Shoot Auto Guider.
A diffuse emission nebula in the constellation Scorpio near Zeta Scorpii, the base of the tail of the scorpion. DeepSkyStacker 3.3.2 Stacked 85% of 9 Images ISO 800 120 Sec, 32 DARK, 0 BIAS, 0 FLATS, Post-processed by Photoshop CS5. Some high diffuse cloud about prevented capturing enough images for the stack. It would be good to try this in a dark sky and with 80mm APO to bring in a couple of star clusters in this busy area. Telescope - Bintel BT200 f/4.0 Newtonian with no Coma corrector (borrowed from Stephen Boyd), Hutech IDAS LPS-P2 filter, Canon 400D DSLR, Ambient 15C. Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Star Shoot Auto Guider.
A diffuse emission nebula in the constellation Scorpio near Zeta Scorpii, the base of the tail of the scorpion. DeepSkyStacker 3.3.2 Stacked 85% of 24 Images ISO 800 120 Sec, 32 DARK, 0 BIAS,40 FLATS, 32 DARK FLATS, Post-processed by Photoshop CS5 Having seen that this was relatively bright wth the borrowed 8" f/4 Newtonian a couple of nights earlier, I tried it with the 80mm APO. Whilst it still lacks detail that longer exposure darks skies would reveal it is a pleasing result. Telescope - Apogee OrthoStar LOMO 80/480 with Hotech SCA Field Flattener, Hutech IDAS LPS-P2 filter, Canon 400D DSLR, Ambient 14C. Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Star Shoot Auto Guider.
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