Vortex Planetarium is a comprehensive digital planetarium app (or website) designed to help users explore the night sky. It allows users to observe the stars, constellations, and planets from any location on Earth. The app provides detailed information on celestial bodies, including their names, visualizations of their motion, and their current positions. It also offers interactive simulations of the night sky, enabling users to explore the sky from different angles and times. Additionally, users can use the app to track their favorite celestial objects, share their observations, and take pictures of the night sky.
Discontinued The project is no longer being developed. The latest version, 2.3.2, released in July 2013, can still be downloaded from SourceForge.