M33 / NGC 598 – Triangulum Galaxy

First meeting with CMOS astrophotography camera. During first time I’ve collected the Light frames with the CMOS camera, nothing came of it. What I collected then was at best worth learning about its use, how to collecting photons with a CMOS camera, but it was not worth showing to public → trash. Trusted colleagues know what I am writing about.

Smarter about the knowledge gained from failure … the second attempt was already better, together with the signal, I also collected a huge amount of noise. It was impossible to correct it with the calibration files. As a result, I had to rely heavily on photo processing software to save what was possible to save. Picture shown below.

M33 / NGC 598

Science doesn’t go into the forest so by the third time it should be optimal – I hope.

I noticed that the CMOS camera for the astrophoto squeezes the unmodified camera with the range of captured colors. Yes, I know … the modified camera is much better than the unmodified one, but is it worse than the dedicated astrophoto camera? I believe it is, but only when I came into contact with the equipment and the whole process of processing the collected material by myself, only then I was able to “feel” the difference. I admit that personally for me, capturing photons with a CMOS camera is more difficult than using a photo camera.

About galaxy M33:

Is a spiral galaxy 2.73 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Milky Way and the Andromeda Galaxy.

Source: https://en.wikipedia.org/wiki/Triangulum_Galaxy

  • Photographs (Sep 2020) made near Bielsko-Biała.
  • Equipment: ATIK Horizon, O.O. CT-10, NEQ6Pro., MGen II autoguider.
  • Composition: APP
  • Processing: RawTherapee and GIMP + add-ons (Linux)
  • Lights: 340 x 40[s]
  • Darks, Bias, Flats, DarkFlats

Moon – just after full

The sky was interspersed with clouds. Once there were cirrus’s, sometimes they were cumulus clouds, but there were also windows between them to try to take a test the new equipment and photograph something. The tests were successful, but the atmosphere was waving. Moon on top.

Moon – just after full


  • Atik Horizon,
  • Newton CT10 250/1200 [mm], F4,8,
  • NEQ6Pro mod.

M81 / NGC 3031 – Bode’s Galaxy

M81, M82, NGC 3077

This is my first photographic attempt to M81. I’ve collected a lot of photographic material (about 10 hours) but also a lot of it I had to removed due to windy nights and after the first pre-selection I had about 8 hours of photographic material. At the stage of stacking, another 30% had to remove of material remaining based on quality algorithm, which I finally stack together. At the last photo session I noticed that so far, each time I focused the image not well enough.

M81 / NGC 3031 - Galaktyka Bodego / Bode's Galaxy

The Bahtinov mask that I used from the previous telescope (Newton 8 “) and which I trusted on completely it turned out to be introducing the focusing error for my current 10” telescope. Image focusing was not what I could finally achieve. So, I’m waiting for good seeing and clear night sky to repeat of the photo session for M81, with the best possible image focus I can get.

Based on the available Bahtinov mask designs on the internet, a did prototype mask that was created on my 3D printer. It should theoretically fit for my 10 “telescope perfectly. We will see the effects of new astrophotography nights.

Due to the coma around the frame, where M82 is located, I will have to plan a separate photo session for M82. I have hope, that by then I will equip myself with the right coma corrector for my telescope, which will correct optical defects in the whole frame of my camera.

Some information about the galaxy itself – is a grand design spiral galaxy about 12 million light-years away, with a diameter of 90,000 light years, about half the size of the Milky Way, in the constellation Ursa Major. Due to its proximity to Earth, large size and active galactic nucleus (which harbors a 70 million M☉supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy’s large size and relatively high brightness also makes it a popular target for amateur astronomers.

Below right, near the end of frame you can see NGC 3077 – is a small disrupted elliptical galaxy.

Below left from the frame you can see also M82 / NGC 3034 – Cigar Galaxy – a barred spiral galaxy. In the infrared range, it is the brightest galaxy in the sky. Messier 82 is a star storm galaxy, which means it has an intense process of forming new stars.

M82 / NGC 3034 - Galaktyka Cygaro / Cigar Galaxy

Source: https://en.wikipedia.org/wiki/Messier_81 , https://en.wikipedia.org/wiki/Messier_82 , https://en.wikipedia.org/wiki/NGC_3077

Photos taken on 19-22.4.2019 near Bielsko-Biała.

Equipment: Canon EOS 6D, O.O. CT-10 Newton 1200/250 [mm], F4.8, a weak coma corrector not perfectly fit for my telescope, NEQ6Pro.,

  • Composition: Astro Pixel Processor (Linux),
  • Processing: GIMP + plug-ins (Linux),
  • Lights: 5[h] – ISO 1000,
  • Flats, Darks, Bias.

Moon – first quarter

My first moon photo. It took me a long time to take a photo with moon, but somehow I couldn’t get together in myself with this topic. When I collected the light frames and movie, I delayed again myself to get to work with it. Maybe the reason was that to take photos of the sun, moon or planets is a totally new topic for me. Finally I took together in myself, sat down my ass on chair and the fun with hard work has began. During my struggles with the AutoStakkert program and photo processing, some additional were created, let’s call it …. never mind for now. When it’s ready, you’ll find out.

Moon – first quarter – 02.4.2020

Pictures taken near Bielsko-Biała at 02.4.2020.


  • Canon EOS 6D + coma corrector + filter IDAS LPS-D2 48mm + projection eyepiece DS-GSO 42[mm] CSV 2”,
  • Newton CT10 250/1200 [mm], F4,8,
  • NEQ6Pro mod.

Light Frames:

  • 114 x ISO 12.800, 0,00025[s],
  • RAW files of .CR2 with conversion to .TIFF (16-bit) file type, 5488×3662 [px].


  • AutoStakkert v. 2.6.8
  • RawTherapee v.5.8
  • Gimp v. 2.10.14