Shall we trust Stellarium Web or Stellarium App?
Stellarium is a free open-source planetarium, which can be used in different ways. The primary software is dedicated to your computer, but you can still work with Stellarium by using it both via a...
Tagged: Saturn
10 the most spectacular celestial events to watch in 2021-2040
This text is somewhat the continuation of the previous one, tailored for the most unique celestial events or group of celestial events, which will occur in the 2021-2030 decade. This time you will read...
The most unique astronomical events you shouldn’t miss in the 2021-2030 decade
Recently we have entered the new decade 2021-2030. This is a good time to take a look at what major astronomical events will occur throughout this time. I don’t mean typical celestial events, as...
The Astropixels.com ephemeris data extractor
I would like to introduce the new tool, whose goal is to extract the ephemeris data from the Astropixels.com service. Before I start to describe the major features of my program I would express...
Astrophotography with Sigma 150-600mm DG OS Contemporary and dedicated teleconverters
The summary of my amateur test with a Sigma 150-600mm DG OS Contemporary lens and two teleconverters TC-1401 and TC-2001 includes the astrophotography section. I wanted to check this lens in terms of its...