LowSpec amateur spectroscope
Check spectra obtained with LowSpec here Check other entries related to spectroscopy here I have been looking for different aspects of astronomy…
SGPro short review
I took a first look at Sequence Generator Pro astrophotography software about two years ago. Due to unfortunate weather I was able to perform only…
What telescope to buy? Part I - visual observations
End of the year is coming, nights getting longer at the northern hemisphere, many people start to think about gifts and presents. Winter night…
Thirty months with Samyang 135 f/2
It's been well over two years since I got into my hands Samyang 135 f/2 glass and use it as my primary astrophotography lens. Since that time I…
Processing color Moon images
The Moon is very tempting and graceful imaging target. It is enough to have some longer focal length instrument without any tracking abilities to…
TS Optics 71SDQ review
71SDQ first look TS Optics 71SDQ quadruplet refractor TS Optics 71SDQ quadruplet refractor is somehow new product targeted mainly for portable…
Astro Arduino - part II - weather monitor
So, in the previous part we learned some basics - how to switch pin on and off, and then relays that can control power for devices, or for example…
Astro Arduino - part I
Arduino is open hardware platform that became extremely popular due to its simplicity, free and friendly development environment and massive number…
Narrowband colours
If you are an astroimaging amateur and capturing narrowband frames, you probably already needed to make a decision - how to compose all these…
Astro applications CPU hunger
M1 Crab nebula The world today is flooded with data. This also applies to astroimaging amateurs. Modern CMOS cameras have a large number of…
Different times of astrophotography
Long time ago we have been doing astroimages with negative (or positive) film. We had one chance to take a long exposure photo. Then we have been…
How good guiding can be
Why we need to guide? Because mount mechanics are of limited accuracy, and once this accuracy is lower than our imaging setup resolution we need…