Coma aberrations with my Newtonian Telescope

26.06.2020 New aspect: Testing the coma aberration on a Newton Telescope This time I was testing the errors I encountered during my first light session (M27). I saw the stars in the corners being elongated towards the center of the image. This elongation was to be expected – it is called „coma“ and is a …

First light with my EQ6-R Pro and the Canon EOS 700Da

Why is a good mount important? – 23.06.2020 Hey folks, so finally everything arrived. My old rig was quite overwhelmed with my ambitions and had to be replaced. Why so? – First reason was the old mount. The mount is undoubtedly the most important part of your equipment. No fancy OTA will produce sweet DSO …

Venus & the impact of seeing

30.12.2019 – 23.04.2020 New aspect:Visualize the impact of seeing while taking images of Venus. Image acquisition & processing:I took three different images of Venus during the recent few months. All of the images were taken with the exact same hardware and setting – a ASI ZWO120MC-S Color planetary webcam with a 3x Barlow lens on …

#23: M51 „Whirlpool Galaxy“ – first time auto-guiding

& „It’s too much!“ – beginning backlash-errors or the EQ3 -Pro 29.04.2019 – 04.05.2019 New aspects: – first time with an auto-guiding system– Guiding shows first signs of overcapacity– revisited a target for noise reduction– first „proper“ galaxy– longest project so far Image acquisition:So finally every part of my new guide-scope arrived and I could …

#22: Autoguiding – Failures and wasted time

31.03.2019 New aspect: Trying autoguiding for the first time Guiding basics: During the last sessions I slowly build up the dream of autoguiding my images. There are many advantages of having a guidecam with a guidescope attached to your main scope. The ability to use the guidescope for advanced polar alignment in phd2. There you …

#21: Crab nebula with short exposures & failed polar alignment with M81

25.05.2019 New aspect #1: Failed polar alignment issues New aspect #2: Capturing an object with high ISO and low exposure time Image acquisition: M81: On this night I originally wanted to capture more data on M81 and M82 to increase the quality of this image by a factor. So I set up my rig as …