TS Optics 71SDQ review – part I
First look TS Optics 71SDQ quadruplet refractor is somehow new product targeted mainly for portable astroimaging. It seems to be successor of well known quadruplet 65Q, and since their basic parameter... Read More
IC1795 Fish Head
This year January was a really cloudy time. That’s why I was even more surprised by sudden clear night that occurred on January, 19th. Conditions were not perfect – transparency was medioc... Read More
1304 Arosa photometry
1304 Arosa asteroid is yet another main belt object that orbits the Sun. It orbits around Solar System central star in 5 years and 9 months. Arosa diameter is estimated to 40km, and it is actually pre... Read More
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 DSLR shutter. In this part we will try to monit... Read More
NGC281 Pacman explored
I already captured this well known nebula over four years ago. This time I wanted to go a little bit deeper to interesting interior of Pacman, but it requires quite a lot of captured data to reveal de... Read More
M74 Phantom Galaxy
M74 galaxy is located in constellation of Pisces. Distance to this grand design spiral galaxy has been determined to 32 million light years. The number of stars in M74 is estimated to 100 billion. M74... Read More
IC4954 and Roslund 4
There are many places in the space where new stars are born. Reflection nebulae IC4954 (near center) and 4955 (lower left) is one of them. These nebulae surround open cluster Roslund4. Its age is esti... Read More
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 of ready to use examples and libraries that can be u... Read More