Remember when I posted my observation of the dragonfly constellation? (Orion & Sirius: The Dragonfly Constellation, 19 JAN 2022) …Well I took some new pictures of my favorite winter stars, and noticed

Anıl ATALAN - Istanbul University, Institute of Science, Department of Astronomy and Space Sciences, Istanbul Introduction The evolution of a star is generally explained in terms of the radius of the star

Anıl ATALAN - Istanbul University, Institute of Science, Department of Astronomy and Space Sciences, Istanbul Summary When we look at it by definition, a double star refers to a system of stars coming