Cygnus X-1 is one of the most famous X-ray binaries in our Galaxy. This system consists of a massive blue supergiant and an invisible companion
Category: news
Did you know that Annie Cannon (1863-1941) was the creator of the current stellar classification, OBAFGKM, based on the stellar spectra? Or that Jocelyn Bell
Abstract Context. Classical chemically peculiar stars exhibit atmospheres that are often structured by the effects of atomic diffusion. As a result of these elemental diffusion
In the last issue of Astropis (143/2024) – a popular Czech astronomy magazine – an article dedicated to the experimental spectroscopy of comet C/2023 (Tsuchinshan-ATLAS)
Astronomers have discovered a planetary system that exhibits the strongest observed gravitational interaction between two giant planets to date. This gravitational dance is so strong