Tag Archives: bw

More H-alpha

astrofotografie, astronomie, astronomy, astrophotography, b&w, black and white, bw, cave nebula, cepheus, emission nebula, emissionsnebel, fotografie, kepheus, photography, schwarzweiß, sh2-154, sh2-155, sharpless, sw
Sharpless 154 and 155 Cave Nebula – Ha BW – Nov 2021 v1
astrofotografie, astronomie, astronomy, astrophotography, auriga, b&w, black and white, bw, emission nebula, emissionsnebel, fotografie, ic, ic417, m38, messier, ngc, ngc1907, ngc1931, photography, schwarzweiß, sh2-234, sh2-237, sharpless, sw
IC 417 Emission Nebula and Friends – Ha BW – Nov 2021 v1

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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NGC 6888 – Crescent Nebula – Ha

astrofotografie, astronomie, astronomy, astrophotography, b&w, black and white, bw, crescent nebula, cygnus, emission nebula, emissionsnebel, fotografie, ngc, ngc6888, photography, schwan, schwarzweiß, sw
NGC 6888 – Crescent Nebula – Jul 2021 – Ha BW

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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North America and Pelican

astrofotografie, astronomie, astronomy, astrophotography, b&w, black and white, bw, cygnus, emission nebula, emissionsnebel, fotografie, photography, schwan, schwarzweiß, sw
NGC 7000 – North America Nebula and IC 5070 Pelican Nebula – Ha BW – Jun 2021 Mosaic v1

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

NGC 7000 Ha Test

astrofotografie, astronomie, astronomy, astrophotography, b&w, black and white, bw, cygnus, emission nebula, emissionsnebel, fotografie, ngc, ngc7000, nordamerikanebel, north america nebula, photography, schwan, schwarzweiß, sw
NGC 7000 – North America Nebula – Ha Test with QHY268M Jun 2021

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