KStars is a free and open source application that allows users to explore the night sky and learn about astronomy. It offers an interactive sky map, complete with constellations, planets, and other celestial objects. With KStars, users can easily pinpoint the exact location of stars and planets in the night sky, and find out more about them. It also features various tools for plotting the position of stars and other objects in the sky over time, as well as for calculating the position of the sun, moon, and planets at any given time. Additionally, KStars provides users with detailed information about astronomical events such as eclipses, meteor showers, and comets. This app also offers a wide range of educational resources, including astronomy articles, podcasts, and videos. KStars is available for Windows, MacOS, Linux, and other platforms.
Discontinued The program is no longer updated. The latest version, 5.73, released in July 2006, can still be downloaded from the official website.