The best Planetarium software is also the best free planetarium software. It is an Astronomy software with 600,000 stars in its base catalog, 177 million stars in its additional catalogs, with 80,000 objects in the deep sky. It has asterisms, the representation of constellations, a realistic Milky Way, the planets and their respective satellites.
Among its features include a powerful zoom, a time control, a multilingual interface, the ability to control telescopes, shooting stars, comet tails, in short a complete software that will allow us to better know what we look in the sky. Its name is Stellarium.
Site : https://stellarium.org/