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The Planets 
The planets of the solar system. Astrod Astronomy Freeware Celestia Free Astronomy Software - Celestia Free Astronomy Software - Celestia is free space simulation software that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X. Unlike most planetarium software, Celestia doesn't confine you to the surface of the Earth. You can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy. All movement in Celestia is seamless; the exponential zoom feature lets you explore space across a huge range of scales, from galaxy clusters down to spacecraft only a few meters across. A 'point-and-goto' interface makes it simple to navigate through the universe to the object you want to visit. Celestia is expandable. Celestia comes with a large catalog of stars, planets, moons, asteroids, comets, and spacecraft. If that's not enough, you can download dozens of easy to install add-ons with more objects. Astrod Astronomy Freeware Planetary Apprentice - Planetary Apprentice - Planetary Apprentice is a reference tool that displays several properties for a selected planet. There are 18 properties divided into four categories - orbital, physical, axial, and atmospheric. The Apprentice shows all 18 properties for your seleceted planet in one scrollable window. Planetary Apprentice is completely free. Features of Planetary Apprentice: One-click unit conversion: Clicking a property given in metric units will automatically open the Apprentice's conversion tool, enter the value clicked, and convert it to an american unit. Comparative chart: All nine planets with their respective properties are shown side by side in one chart. Handy for comparing differences and similarities between two or more planets. Customizable Interface: The colors and fonts used by the Apprentice can be customized by you. Image Gallery: A collection of several planetary images from NASA and the NSSDC. Requirements: Windows OS. Planetary Apprentice is freeware astronomy software. Astrod Astronomy Freeware Terranova Screen Saver for Windows - Terranova Screen Saver for Windows - The Terranova Screen Saver for Windows 95/98/Me and NT/2000/XP uses the technique of fractal forgery to synthesise images of planets, star fields, and cloudy skies. Every image is unique; you could run this screen saver for millions of years without seeing the same image twice. You can configure the rate at which images change and whether images appear at random positions on the screen to avoid burning in the phosphor (the Prime Directive for screen savers) or are centred on the screen. You can optionally display the date and time. Astrod Astronomy Freeware Astronomy software from Astrod |