Planisphere is an educational and reference application that enables users to learn about the night sky. It displays a detailed interactive star map of the night sky, allowing users to explore the visible stars, constellations, and planets in their current night sky. The app also includes an extensive library of information about the night sky, including facts, articles, and images. Additionally, it features additional tools that allow users to identify stars and planets, as well as calculate the position of the sun and moon at any given time. The app also provides users with detailed forecasts of celestial events such as meteor showers, eclipses, and transits.
Discontinued The program is no longer updated. The latest version, 5.73, released in July 2006, can still be downloaded from the official website.