#sky map

Also this website is a great resource for monthly constellation maps no matter your hemisphere.

As I mentioned before, guidebooks and maps are rare treasures and they are often incomplete or inaccurate. If you want to be sure, you should also learn the star maps for navigation. 🌠

From The Stars In Their Courses by Sir James Jeans, 1931.

Alexander Jamieson, Plate VII from A Celestial Atlas: Comprising A Systematic Display of the Heavens in a Series of Thirty Maps Illustrated by Scientific Description of their Contents, And accompanied by Catalogues of the Stars and Astronomical Exercises, 1822

The map, released June 19, is based on data from the first full scan of the sky made by the eROSITA X-ray telescope onboard the Russian-German SRG spacecraft, which launched in July 2019. The six-month, all-sky survey, which began in December and wrapped up in June, is only the first of eight total sky surveys that eROSITA will perform over the next few years. But this sweep alone cataloged some 1.1 million X-ray sources across the cosmos — just about doubling the number of known X-ray emitters in the universe.