Avogadro

The Avogadro software is used in computational chemistry, molecular modeling, bioinformatics, material science and other sciences related to it. With its rendering and plugin architecture, it functions as a molecular editor and provides visualizer designs. This software is free and an open source which is available under GNU GPL. It has international translations, pages can be translated to French, German, Italian, Spanish, Chinese and Russian, the Avogadro team is still working on incorporating more language translations. This program is built for students and advanced researchers and supports computation and multi-threaded rendering. Developers are also welcome, with the program's plugin architecture that includes, tools for rendering and interactivity, commands and Python scripts. Avogadro features an Open Babel, it is a chemical toolbox with all the languages of chemical data. It is a open, collaborative language which means that anyone is welcome to search, convert, analyze, or store data from molecular modeling, chemistry, solid-state materials and biochemistry. the Open Babel has 110 chemical File formats and has been downloaded for more than 164,000 times.

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Celestia

Celestia is a real-time, photo realistic, 3D viewing of the solar system including the galaxy and the universe. It runs in multi-platform and is used in the study of astronomy. Museums, planetariums, schools use this as a tool for teaching astronomy and also as a visualization tool for space mission designers. It displays Hipparcos Catalogue (HIP) which has 118,322 stars, and users can choose to display the number of stars visible on the screen ad draw them in different styles. Celestia uses the VSOP87 theory of planetary orbits that provides a display of the orbital paths of planets which includes extrasolar planets, dwarf planets, asteroids, comets, moons, spacecraft and artificial satellites which also includes a solar and lunar eclipse finder. Users can fly through the Celestia universe at any speed ranging from 0.001 m/s to millions of light years/s using simple keyboard controls which allows orbiting stars, moons, planets, other space objects and other track space objects like spacecraft, asteroids, comets as users pass by through nebulae and irregular, spiral and elliptical galaxies.

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