NGC 891 - 12" ONTC Newton - bad seeing (Wolfgang Ransburg)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: NGC 891 · NGC 898

NGC 891 - 12" ONTC Newton - bad seeing, Wolfgang Ransburg

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NGC 891 - 12" ONTC Newton - bad seeing

Link: http://www.wolfi-ransburg.de/astronomie.html

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NGC 891 - 12" ONTC Newton - bad seeing

Link: http://www.wolfi-ransburg.de/astronomie.html

Really Really bad seeing and I have made a big mistake - I use Maxim DL as control software also for guiding. And I have had a bad guiding result in Y-axis (declination). I was afraid, that my mount is defective. So the stars are not really good. After this, I have checked in the internet, what is wrong. And I have found the mistake. I have activated the "Anti Sticton" (Guder Settings). The problem was, that maxim and the autoguider has fighted against each other. After I have deactivated the Anti Stiction, the guiding was perfect (next image).

And now I am optimizing my 12" ONTC - I set my 100mm secondary mirror into a perfect position because I have seen, that the maximum of light is not perfect in the middle of the sensor. For this, I use my full frame camera and flatfields. I only have to wait until raining will stop.

This image is not perfect but it is OK, I hope.

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Astrometry.net job	6647072
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NGC 891 - 12" ONTC Newton - bad seeing

NGC 891 - 12" ONTC Newton - bad seeing

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NGC 891 - 12" ONTC Newton - bad seeing

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