: The most popular open-source virtual planetarium. It shows a realistic 3D sky exactly as you see it with the naked eye, binoculars, or a telescope.
: A robotic facility in Italy that provides live, online telescope observations for the public. Virtual telescope Free Download
If you are looking for views of the sky rather than a downloadable simulation, the Virtual Telescope Project is a leading resource. : The most popular open-source virtual planetarium
: Created by the American Astronomical Society (AAS), this tool turns your computer into a virtual telescope by combining imagery from the world's best ground- and space-based telescopes. Virtual telescope Free Download
Are you looking to from your backyard? (Try Stellarium )