Astro applications CPU hunger
World today is flooded with data. This also applies to astroimaging amateurs. Modern CMOS cameras has a large number of pixels and single subframe after converting to RGB color can occupy several hund... Read More
One more Needle
I have imaged NGC4565 already here and here, but on last Zatom astroparty I took a look onto this galaxy and could not resist to picture is again with 10″ telescope. Needle Galaxy is a kind of m... Read More
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 given with CCD sensors – much more sensitive. An... Read More
The Ring – M57
Messier 57 is a planetary nebula with all the consequences. It was formed about 7,000 years ago, when a dying red giant star expelled its shell of ionized gas to form the nebula. And this star then be... Read More
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 to guide. There are some mounts available equipped with... Read More
Active M106
Messier 106 is intermediate spiral galaxy in Canes Venatici. It was discovered by Pierre Mechain in 1791 and is located about 22 million light years from Earth. M106 is quite bright galaxy available f... Read More
Strange NGC6765
NGC6765 (PK 62+9.1) is small (apparent Jupiter size) and faint (about 13mag) planetary nebula in Lyra. There is not much more information available on this strange planetary nebula. Distance to the ne... Read More
Pixel scale and resolution
Is it the same? Can we increase resolution just by making pixels smaller? In some cases we can, but quite often we cannot. For this article scope I assume the sensors I describe have the same no... Read More