Stellarium is a free open source planetarium for your computer. Stellarium renders 3D photo-realistic skies in real time with OpenGL. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. Stellarium displays stars, constellations, planets, nebulas and others things like ground, landscape, atmosphere, etc. It is available for Linux/Unix, Windows and MacOSX. It is being used in planetarium projectors. Just set your coordinates and go.

• default catalogue of over 600,000 stars 
• extra catalogues with more than 210 million stars 
• asterisms and illustrations of the constellations 
• constellations for eleven different cultures 
• images of nebulae (full Messier catalogue) 
• realistic Milky Way 
• very realistic atmosphere, sunrise and sunset 
• the planets and their satellites 
• a powerful zoom 
• time control 
• multilingual interface 
• fisheye projection for planetarium domes 
• spheric mirror projection for your own low-cost dome 
• all new graphical interface and extensive keyboard control 
• telescope control 
• equatorial and azimuthal grids 
• star twinkling 
• shooting stars 
• eclipse simulation 
• skinnable landscapes, now with spheric panorama projection 
• add your own deep sky objects, landscapes, constellation images, scripts...

Changes in Stellarium 0.10.3 [2010-01-28]:

- Based on Qt 4.6.x 
- Bundling of plugins: Satellites, Oculars, AngleMeasure, CompassMarks, TelescopeControl, TextUserInterface. 
- New script engine improvements including variable script running speed, and a script console (activate with F12). 
- Made tabs in GUI smaller by moving titles under the icons. 
- Updated the plugin API to allow to compilation and easy distribution of static plugins. 
- Added plugins window. 
- Got rid of the boost library dependency. 
- The whole sky display viewport is now contained in a class deriving from QGraphicsWidget, allowing to move and resize it as a normal widget. 
- Generalized the use of shared pointers for StelObject management. 
- Use vertex shaders for computation of atmosphere color if OpenGL supports it. 
- Optimized openGL calls by replacing glBegin()/glEnd() by the use of vertexArray. 
- Optimization of critical parts of the projection code. 
- Added code for managing and displaying non-convex polygons + unit tests. 
- Recoded the StelGrid code to support non ponctual sky regions, and optimized API (new class StelSphericalIndex + unit tests) 
- Optimized many part of the code by reducing creation of temporary Vec3d/Vec3f. 
- Optimized JSON parser (x25 speed improvement) + unit tests. 
- Migrated all text drawing system to QFont. This fixes long standing bugs for displaying arabic and asian characters in the sky. Also allow to get rid of 6 source files and of the freetype dependency (managed internally to Qt) 
- Switch default back end mode to native for Windows as ATI drivers often have problems, still raster default for other platforms. 
- Add graphics-system option. 
- Fixed magnitude computation for most of the planets. 
- Use GL Shader for stars rendering if OpenGL >= 2.1. 
- Re-organized the startup by moving log and command line processing to main.cpp. 
- Re-coded all the management of extra star catalogs. 
- Implemented partial support of OpenGLES 2.0. 
- Moved official plugins code into plugins/ and changed the cmake config so that they are automatically compiled in static. 
- Re-coded the texture engine based on Qt loading features (Got rid of explicit libjpeg and libpng dependencies!). 
- Allowed to first render the sky in a frame buffer. 
- Moved the code related to viewport distortions into a new class StelViewportEffect based on frame buffer object. 
- Added working cmake targets for compilig and runing unit tests. 
- Added a delay before making Simbad name lookup queries to avoid sending too many requests. 
- Added the Aztec sky culture. 
- Many minor fixes and optimizations.

Stellarium 0.10.3

Size : 43 MB

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Stellarium 0.10.2 Portable

Size : 36 MB

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