Another two clear nights in a row. And again there was no good seeing at all. Jupiter was still low in the sky, the Moon was almost close to its lowest declination at only 10 degrees over the horizon, but was clear, and Saturn was a pain again.

On the 25th a neighbour came over to my observing site in front of the house and I could show him visually a few "wonders". We began with Saturn at different magnifications through the 150/1800mm Maksutov from 90 (with 20mm eyepiece), 200 (with 9mm), 260 (with 7mm) down to 450 (with 4mm). This was fun with sometimes seeing the Cassini division.

Next was the colourful double star Albireo in Swan, which came really impressive and than followed by a view on the M57 Ring Nebula, which was easy to see, what surprised even me. We finally ended up with Jupiter, where we saw those four moons and easy reddish bands on the planet. My guest was simply speechless and promised to come more often for viewing.

Imagingwise I tried some views on the Moon, but high magnification was not possible.



The best Saturn out of 35 videos on September 24.
24 September 2023 - 1948 UT - 25%/4000 frames at 4ms/frame 145 fps - QHY5III715C - Mak MK67 150/1800mm



The best Saturn I could get out of 9 combined videos taken within 4 minutes
25 September 2023 - 2032 UT - 15%/(9*4000 = 20000) frames at 2ms/frame 210 fps - QHY5III715C - Mak MK67 150/1800mm



Just a short test on Jupiter only 12 degrees above the horizon.
25 September 2023 - 2043UT - 9 * 70%/4000 frames at 1ms/frame 145fps - QHY5III715C - Mak MK67 150/1800mm



Moon image with Kopernicus crater in the centre. Full image, but size reduced.
25 September 2023 - 1834UT - 35%/200 frames at 1ms/frame ~50fps - QHY5III715C - Mak MK67 150/1800mm



Moon image with Kopernicus crater in the centre. Full image, but size reduced.
25 September 2023 - 1835UT - 35%/200 frames at 1ms/frame ~50fps - QHY5III715C - Mak MK67 150/1800mm

Equipment

Optics              : Omegon Pro AP 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 3,75Ám 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 (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  : September 2023