This time I used the 1mm distance ring to fine adjust the distance between sensor and corrector. 1mm seems to be too much distance between DSLR sensor and coma corrector… the borders are worser than with the 0.5mm ring. And still not enough focal length for M 57 Ring Nebula, one of my favorite objects… […]
This time especially the right upper corner is problematic (left upper corner too, but not that much as the right upper corner). At least not all 4 corners are affected in the same way… I’m unsure what’s the reason for this… So far, after reading a lot about the topic, I think the problem is: working […]
Three sessions in a row without a freeze on my GEM28. Yeah! But I expect the next very soon… Details
Yesterday I took the chance to shot the Fly- and Spider Nebula and some cluster neighbors, but had to stop after 1.5 hours due to clouds (in contrary to the weather forecast). Additional I had a forced 15 minutes break: my GEM28 had again a crash/freeze. I had to reset everything: back to zero position […]
Finally a fog-free night… After tighten the DEC axis stiction a little bit (I loosened it too much), my GEM28 shows again very well performance, constantly. So, for the moment I’ll keep the belt tension as it is. And no crash or freeze during the whole session 🙂 But I’m almost sure it will crash […]
After around 90 minutes shooting M 34, the Pleiades came in sight (M 34 slowly disappeared behind the roof anyway). So I decided to switch to the Pleiades at the same settings. This way I can use the same flats and darks for both targets. Lesson learned: take flats directly after every target! Dust or […]
New equipment and clear sky! What more do you want? 😉 After a few MGEN recordings I targeted IC1805 Heart Nebula to start a session. This time I could use every sub exposure. No DEC trails anymore. I’m so happy. During the whole session I used the 22Ah power tank to power the GEM28 again, […]
The Lion Nebula is much more faint than I thought. So I spent the last 2 nights for it. It’s a very star rich region. More than 4 hours integration. Each session is calibrated for it’s own, then registered and integrated all at once. Details Shooting impression:
Finally again clear skies 🙂 This time only 4 out of 79 lights were unusable due to slight DEC trails… still searching for the ideal MGEN settings. Details
After my polar scope disaster and recovery I captured NGC 7822 last night to check if everything works fine again. It was a very warm night. More than 20°C even at the end of the session… Drizzled 2x and resized to original resolution. Details
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