Systems Tool Kit is described as '(STK) is a platform for analyzing and visualizing complex systems in the context of your mission. Interact with data from platforms across the aerospace, defense, telecommunications, and other industries' and is an app in the Education & Reference category. There are more than 10 alternatives to Systems Tool Kit for a variety of platforms, including Windows, Mac, Linux, Android and Android Tablet. The best alternative is Stellarium, which is both free and Open Source. Other great apps like Systems Tool Kit are Celestia (Free, Open Source), Space Engine (Paid), Gaia Sky (Free, Open Source) and Universe Sandbox (Paid).
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.
Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.
Space Engine - a real-time 3D space simulator, procedural universe generator and visualiser. It lets you explore the universe in three dimensions, starting from planet Earth to the most distant galaxies.
3D simulation of the Solar System and night sky - real time virtual orrery and observatory Features: - Heliocentric view with real-time positions of planets and planetary orbits - Schematic and realistic sizes of the planets and distances between them - Movement of the...
Engage in space exploration and terraform new worlds in this fun and exciting planet building simulator rooted in real science. TerraGenesis dynamically animates entire planets with changing biospheres, all based on real data from NASA.
WinStars uses the latest 3D technology to show the objects of our solar system in a realistic manner. Thus, it is possible to move from one planet to another, to follow a space probe on its long voyage or to observe a celestial event from a place to which you could never go.