Stellarium - Stellarium is a free open source planetarium for your computer.
SkyView - SkyView is powerful, easy-to-use app that answers questions about stars, constellations, and more.
Mitaka - Mitaka is software for visualizing the known Universe with up-to-date observational data and...
Planetarium - A browser-based virtual planetarium of stars and planets, customizable to any location and time.
WorldWide Telescope - The WorldWide Telescope (WWT) is a Web 2.
KStars - KStars is a Desktop Planetarium for KDE.