An original point of view
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 web application (Stellarium-web.org) as well as an Android application (Stellarium Mobile). Within this second one, there are also another two ways … Read more
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 about 10 of the best occurrences in the sky within the next 20 years. Some of the astronomical events described in … Read more
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 known from a vast majority of astronomical calendars issued usually on a yearly basis. I would like to take a deep … Read more
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 a big thanks to Fred Espenak the author of this platform. Fred Espenak is already a retired American astrophysicist, whom we … Read more
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 ability to capture celestial objects. The fundamental difference between celestial objects and terrestrial objects is, that these first are in motion, … Read more