A phantastic night with no clouds and a very clear sight.

The guiding camera refused to "cooperate", so I took the images without guiding. The GP mount ran very smooth.

With the help of Polar Alignment in SharpCap it has been easy to get the alignment down to an error of 2 ArcSec, which is phantastic.

Today's
Conditions		 : Clear sky, Temp -3°C => -9,5°C, ~65..80% humidity, very clear, good down to mediocre seeing, very calm, almost no winds

For all images

Instrument : Omegon Pro APO Triplet ED FCD-100 d=85 f=510mm Apochromat (f=1/6)
Software : N.I.N.A, SharpCap, PHD Guiding, SIRIL, etc

NGC 2403 (Caldwell 7) Galaxy

More information (German Link) Wikipedia : NGC_2403
Date - Time : 17 February 2025 - from 18:20 UT+
Image Data:
Camera=Omegon veTec 533 C | ROI=Full Frame 3008x3008 | Filter=built-in IR Cut | 60* 120s = 120 min = 2h | Gain=256 | Offset=150

M81 (NGC3031) Bode Galaxy and M82 (NGC3034)


More information (German Link) Wikipedia : M81 Wikipedia : M82
There is some artefact of a brown line, which I cannot figure out, what it is. It is existent in every recorded frame
Date - Time : 17 February 2025 - from 20:26 UT+
Image Data:
Camera=Omegon veTec 533 C | ROI=Full Frame 3008x3008 | Filter=built-in IR Cut | 60* 120s = 120 min = 2h | Gain=256 | Offset=150

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)
Guiding             : PHD2
Aquisition          : DELL Notebooks (Windows 10 & Windows 11), SharpCap, FireCapture and others
Image Processing    : DeepSkyStacker, Siril, Gimp and others

latest list update  : February 2025