Two different locations, more than
200 km apart. Two different telescopes, different size, focal length,
light. Two different tools for collecting photons with completely
Until now, my computer didn’t really have much to count, but
everything changed when I get idea to try, to stack two totally
different data sets together. I like such challenges. I’ve spent a
lot of time on it with processing stack. The average of time consumed
with one single stack processing, took me around 6 hours. It was test
stacks + experiments…. I’ve lost in time how many there were,
hours or maybe days spent only for the processing of the data itself.
Anyway, the power meter count what it wanted and I will pay for this
An interesting fact for me was, that the result stack reached a resolution of 23k x 23k [px], and its size was of 6.3 GB. Displaying such an image greedy consumed ¾ from the available memory of my computer. Processing such a photo was a bit tiring, after cropping it was better, but the final .png file with photo, was just over 300MB in the resolution of 9085 x 6950 [px].
Well…. I must admit that I had a lot of fun with it and a lot of
side text was written during processing of stack. Something will come
About the galaxy itself
The Triangulum Galaxy 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. It is one of the most distant permanent objects
that can be viewed with the naked eye.
1: I’ve collected light frames with few different sessions. Photos
taken on 2019 at Zwardoń and Bieszczady during PTMA rally.
Equipment: Canon EOS 6D, SkyWatcher Newton 1000/200 [mm], F5, coma
Astro Pixel Processor,
GIMP + plug-ins (Linux).
Location 2: Photos collected at 9.2020 near Bielsko-Biała.
Equipment: Newton 1200 / 250 [mm], coma corrector, Atik Horizon CEMOS camera, NEQ6Pro.
- Stack processing: APP
- Photo processing: Raw Therapee +
GIMP + plugins (Linux)
- Lights: 340 x 40[s]
- Darks, Bias, Flats, DarkFlats