Despite being 140km from Perth, tehre was quite a gradient in the west. This has been reduced using Astorflat. The comet tail extends about 8-10 degress in this image. DeepSkyStacker 4.2.6 Stacked 85% (31) of 36 Images ISO 1600 @ 120 Sec, 47 DARK @ 120 Sec, 19 BIAS, 20 FLATS, Post-processed with Adobe Photoshop CC 2022 Lens Canon EF 50mm f/1.8 at f/3.5 with Hakuba Skylight (1A) filter, Baader modified Canon 70D DSLR field 17 x 25 Deg , Ambient ~22C. Skywatcher Star Adventurer mount with Sidereal tracking only.
Despite being 140km from Perth, there was quite a gradient in the west. This has been reduced using Astorflat. The comet tail extends about 8-10 degress in this image. DeepSkyStacker 4.2.6 Stacked 85% (31) of 36 Images ISO 1600 @ 120 Sec, 47 DARK @ 120 Sec, 19 BIAS, 20 FLATS, Post-processed with Adobe Photoshop CC 2022 Lens Canon EF 50mm f/1.8 at f/3.5 with Hakuba Skylight (1A) filter, Baader modified Canon 70D DSLR field 17 x 25 Deg , Ambient ~22C. Skywatcher Star Adventurer mount with Sidereal tracking only.
No sign of faint comet under bright Moon - testing StellarMate automation. Coma visible in TL,BL but little TR/BR implies skewed L-R focal plane. DeepSkyStacker 4.2.6 Stacked 80% (44) of 55 Images Gain 100 @ 30 Sec, 35 DARK Gain 100 @ 60 Sec, 35 BIAS Gain 100 @ 1/1000 Sec, 19 FLATS GAIN 100 @ 1/10000 Sec, Post-processed with Adobe Photoshop CC 2022 Telescope - PowerNewt 200mm f/4 with Baader MPCC Coma Corrector (at 55mm backfocus) for F=800mm f/4.0, IDAS NB1 filter, QHY 268C CMOS camera field 68' x 101' , 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.
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