One series of 200 images taken. The first 75 were by far too bright. But I got it.
| Today's Conditions |
: | Clear sky, Temp +7°C , ~80% humidity, very clear, good mediocre seeing, some wind. |
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Comet Lemmon C/2025 A6 (stacked on comet) |
| Date - Time : 19. October 2025 - 1754 UT+ |
| Image Data: Camera= NIKON D7000 with f5.6 old Zoom at 210mm. Treated= 125*20sec; Deep Sky Stacker, Siril, Irfanview Stack= This stack gave me the most of details |
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Comet Lemmon C/2025 A6 (stacked on comet and stars) |
| Date - Time : 19. October 2025 - 1754 UT+ |
| Image Data: Camera= NIKON D7000 with f5.6 old Zoom at 210mm. Treated= 125*20sec; Deep Sky Stacker, Siril, Irfanview |
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Comet Lemmon C/2025 A6 - single image |
| Date - Time : 19. October 2025 - 1818 UT+ |
| Image Data: Camera= NIKON D7000 with f5.6 old Zoom at 210mm. Treated= 1*20sec; Irfanview only |
Equipment
Optics : Omegon Pro APO Triplet ED FCD-100 d=85 f=510mm Apochromat (f=1/6) : Intes MK-67 Maksutov Type Reflector d=150mm f=1800mm (f=1/12) Camera : Omegon veTec 533 C Colour CMOS Camera with IMX533 square 9MP sensor 3,75µm pixels : QHY 5III715C Colour CMOS IMX715 8,2MP sensor 1,45um pixels high speed : NIKON D7000 DSLR unmodified (from 2011) : The Imaging Source DMK21AU4.AS monochrome USB highspeed camera : Panasonic LUMIX G110 MFT System (from 2021) Filter : IR/UV Cut, Astronomik H-Alpha, Astronomik LRGB set + filter drawer add. optics : ED 2x Barlow lens, eyepiece projection : 35mm, 50mm, 135mm and 200mm NIKON lenses available : 2.8/60mm Sigma, 12 .. 60mm Leica for MFT system Mount : VIXEN GP Highspeed Step Motors (Non Vixen Motors) Controller : EQStar Pro (System from Astro Gadget / Ukraine - since May 2023) Focusing : EAF (Electronic AutoFocus) Gemini (?China) on APO Guiding : PHD2 Aquisition : DELL Notebooks (Windows 10 & Windows 11), SharpCap, FireCapture and others Image Processing : DeepSkyStacker, Siril, Gimp and others latest list update : May 2025