A completely clear night – not that many of them lately – provided several hours of H-alpha to catch the nebulosities above. Meanwhile I switched from the Optolong LRGBSHO filter set to the new Baader CMOS-optimized filters. At least H-alpha seems to work better in the combination with the Esprit 100 ED and QHY 268M, but still some problems with the flats.
See Astrobin here and here for details.
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Because it’s that time of year … a fresh shot at a very familiar target during two clear nights in October. Ha, L, R, G, B with the QHY268M, but still facing problems with the Esprit and the Optolong filters.
Details at Astrobin.
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Dank Thomas Winterers freundlicher Genehmigung, seine Daten vom August auf der IAS Sternwarte Hakos, Namibia für eine eigene Bearbeitung zu nutzen, kann ich dann auch wieder den König der Planeten fast zur Opposition (20.08.2021) mit den bis jetzt besten Details hier im Blog präsentieren.
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Two more clear nights in August allowed for capturing OIII data for the NGC 6888 field, so here comes a bicolor processing.
Details at Astrobin.
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Still a work in progress, mastering the QHY268M with the Optolong LRGBSHO filter set. Seems like a setup with reserved filters is required for the Esprit 100 ED with the original flattener, in order to avoid strange reflections from bright stars such as Deneb or Sadr. Shooting a familiar target here.
Technical details at Astrobin.
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Continuing the explorations with the QHY268M, a two panel H-alpha mosaic. And the first time I used NINA to control the imaging session.
Backyard astrophotography in light-polluted Cologne-Dellbrück (SQM 19.7)
Skywatcher Esprit 100/550 ED, Skywatcher Flattener, Optolong Ha 7nm / QHY268M
OAG with Lodestar X2
Mount AZ EQ6 GT
Image acquisition: CdC, NINA, PHD2, dithering
Ha: 2 x 6 x 600s, mode 1, gain 56, offset 10, -5C, 10 flats, 50 bias, 20 darks
Data calibration/integration: PixInsight
Image processing: PixInsight, Lightroom, two panel mosaic
First steps into the realm of mono astrocams with the QHY268M. Pretty amazed what 3 x 10 min were able to pull out of my suburban skies.
In memoriam Dr. Carsten Jacobs, ad astra!
Backyard astrophotography in light-polluted Cologne-Dellbrück (SQM 19.7)
Skywatcher Esprit 100/550 ED, Skywatcher Flattener, Optolong Ha 7nm, QHY268M
OAG with Lodestar X2
Mount AZ EQ6 GT
Image acquisition: CdC, APT, PHD2, dithering
Ha: 3 x 600s, mode 1, gain 56, offset 40, -10C, 20 flats, 40 bias, 12 darks
Data calibration/integration: PixInsight
Image processing: PixInsight, Lightroom
The last one for this season, weather wasn’t that stellar for astrophotography in the last months, so too little exposure time and too much noise. To be continued in 2022 …
All details at Astrobin.
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Again, two months to gather enough photons for this image. The bulk of the exposures were taken during a spell of five clear, cold nights in Feb 2021, though. The emission nebula IC 410 also includes the open cluster NGC 1893.
More details at Astrobin.
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A new approach to the Pacman Nebula with the L-eNhance filter and bicolor processing. No so much for clear skies in the winter season here, took over two months to gather some meagre 10 hours of exposure time.
See also Astrobin for all details.
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