Apps similar to Gaia Sky include Stellarium, which is free and open source. Other options are Celestia, Sky Map, KStars and I, Voyager Planetarium. Star Maps like Gaia Sky are a crowded field, with more than 25 alternatives for Windows, iPhone, iPad, Android and Mac.
The WorldWide Telescope (WWT) is a Web 2.0 visualization software environment that enables your computer to function as a virtual telescope, bringing together imagery from the best ground and space-based telescopes in the world for a seamless exploration of the universe.
United States
Mitaka is software for visualizing the known Universe with up-to-date observational data and theoretical models. Mitaka users can seamlessly navigate through space, from the Earth to the edges of the known Universe.
Japan
Discover the fascinating relation between time and the cosmos. Enjoy this interactive learning tool and understand the concept of the celestial sphere and the apparent movement of the sky.
United Kingdom
The Exoplanet app is a highly visual and interactive catalogue of all known exoplanets. Exoplanets are planets orbiting stars beyond our own Solar System. It is frequently updated whenever new discoveries are confirmed.
Try out the solar system simulator to see the distance to Mars or other planets. Point your iPhone to the sky and explore the movement of the sun, moon, planets and stars across the sky while you change time by swiping the display.
Warp to distant stars and explore various exoplanets like lava worlds, water worlds, earthlike planets or massive jovians with Stars and Planets planetarium app and astronomy guide. Space is awesome and the universe is at your fingertips!
Systems Tool Kit (STK) is a platform for analyzing and visualizing complex systems in the context of your mission. Interact with data from platforms across the aerospace, defense, telecommunications, and other industries.
Visit distant exoplanets on a thrilling journey through our galaxy! Exoplanet Explorer presents interactive 3D models of real solar systems and visualises planets that have been discovered around distant stars.
Vortex Planetarium - Discover the sky.
The most comprehesive, fully featured Planetarium on Android.
Used by amateur astronomers and armchair observers alike, Vortex Planetarium offers a window to the skies in stunning detail.
Features
Augmented Reality (with camera support) .
The Sun's and Earth's rotation axes are both tilted with respect to the ecliptic, the plane of the Earth's orbit around the Sun.
