Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.It is being used in planetarium projectors. Just set your coordinates and go. Features: Sky: • over 120,000 stars from the Hipparcos catalogue with info • asterisms and illustrations of the constellations • images of nebulae • realistic Milky Way • very realistic atmosphere, sunrise and sunset • the planets and their satellites Interface: • a powerful zoom • time control • multilingual interface • scripting to record and play your own shows • fisheye projection for planetarium domes • spheric mirror projection for your own dome • graphical interface and extensive keyboard control Visualisation: • equatorial and azimuthal grids • star twinkling • shooting stars • eclipse simulation • skinnable landscapes, now with spheric panorama projection Customisability: • add your own deep sky objects, landscapes, constellation images, scripts...