Near Full Moon - testing StellarMate automation. Coma visible in TL,BL but little TR/BR implies skewed L-R focal plane. See cropped version to see the 5 Moons - Umbriel; Titania; Miranda; Ariel; Oberon DeepSkyStacker 4.2.6 Stacked 80% (15) of 19 Images Gain 100 @ 90 Sec, 35 DARK Gain 100 @ 60 Sec, 35 BIAS Gain 100 @ 1/1000 Sec, 19 FLATS GAIN 100 @ 1/2500 Sec, Post-processed with Adobe Photoshop CC 2022 Telescope - PowerNewt 200mm f/4 with 2" TeleVue 2X PowerMate for F=1600mm f/8.0, IDAS NB1 filter, QHY 268C CMOS camera field 34' x 51' , Ambient ~20C, Camera 0C. StellarMate on RP-4B with Kstars/Ekos for EQMOD mount control, auto-focusing, plate solving and image acquisition. Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Starlight Xpress SuperStar (Mono) CCD Auto Guider and Ekos auto guiding software.
Short stack, low in NW skyglow, nearing Full Moon - testing StellarMate automation. Slight coma variation in all 4 corners implies skewed focal plain coma not fully corrected at the corners. This cropped version shows Moon Triton (12 O'Clock to Neptune). DeepSkyStacker 4.2.6 Stacked 6 of 7 Images Gain 100 @ 10 Sec, 35 DARK Gain 100 @ 60 Sec, 35 BIAS Gain 100 @ 1/1000 Sec, 21 FLATS GAIN 100 @ 1/10000 Sec, Post-processed with Adobe Photoshop CC 2022 Telescope - PowerNewt 200mm f/4 with ASA Reducer/Coma Corrector (at 55mm backfocus) for F=568mm f/2.84, IDAS NB1 filter, QHY 268C CMOS camera field 90' x 134', Ambient ~25C, Camera 0C. StellarMate on RP-4B with Kstars/Ekos for EQMOD mount control, auto-focusing, plate solving and image acquisition. Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Starlight Xpress SuperStar (Mono) CCD Auto Guider and Ekos auto guiding software.
Short stack, low in NW skyglow, nearing Full Moon - testing StellarMate automation. Slight coma variation in all 4 corners implies skewed focal plain coma not fully corrected at the corners. Cropped version shows Moon Triton. DeepSkyStacker 4.2.6 Stacked 6 of 7 Images Gain 100 @ 10 Sec, 35 DARK Gain 100 @ 60 Sec, 35 BIAS Gain 100 @ 1/1000 Sec, 21 FLATS GAIN 100 @ 1/10000 Sec, Post-processed with Adobe Photoshop CC 2022 Telescope - PowerNewt 200mm f/4 with ASA Reducer/Coma Corrector (at 55mm backfocus) for F=568mm f/2.84, IDAS NB1 filter, QHY 268C CMOS camera field 90' x 134', Ambient ~25C, Camera 0C. StellarMate on RP-4B with Kstars/Ekos for EQMOD mount control, auto-focusing, plate solving and image acquisition. Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Starlight Xpress SuperStar (Mono) CCD Auto Guider and Ekos auto guiding software.
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