Planets of the Solar System Screensaver
Basic planetary data in the form interesting for both kids and adults is given alongside. It is planet name and astronomical sign, distance from the Sun, dimensions, information on satellites, atmosphere and internal composition. Developers goal in creating this screensaver was to make Solar... Then wait for several days and ask what planets of Solar system your kid knows - and you are going to be surprised by the plenitude of the answer received! ... Parents simply need to install an educational screensaver on kid`s computer.
http://www.edu-saver.com/saver/solarsystem_screensaver_1024x768.exe - 3Mb - Download - Screenshot

Solar System 3D Simulator
Solar System 3D Simulator is a FREE software application that generates a realistic solar system model and planets in 3 Dimension on the PC using advanced physics formulas. It can display the planets and their orbits, the sun and the moon. The nine planets including planet earth and their... The Solar System model is useful for learning about the physics of the universe, astronomy, science projects & science experiments interactively for both adults and kids. ... The Solar System 3D software has been designed for fast setup and interactivity with excellent high quality visual output.
http://www.sciencefair-projects.org/solarsystem/solarsystem.html - 5Mb - Download - Screenshot

CyberSky
CyberSky is an exciting, entertaining, and educational astronomy program that transforms your personal computer into your personal planetarium. CyberSky provides an excellent way to learn about astronomy and to explore the wonders of the sky visible in the distant past, the present, and the... CyberSky was designed to be simple enough to appeal to people who are just beginning to discover astronomy, yet provide enough information to be useful to people who have already learned the basics. ... CyberSky provides an excellent way to learn the names and positions of the stars, constellations,...
http://www.cybersky.com/csky331s.zip - 995Kb - Download - Screenshot

EasySky
Astronomy software, shows you the complete night sky (340,000 stars) and our solar system in a 3D orrery view with the planets, asteroids, and comets from any place at any time. All settings can be saved in different documents. Animations let you understand the motions of the celestial bodies or... The demo version contains less objects and some minor restrictions. ... Printing.
http://www.easysky.de/eng/download/esd30115eng.exe - 6Mb - Download - Screenshot

Coeli - Stella 2000
Complete astronomy suite comprising a full-featured planetarium, observing log and list builder, Coeli Time Line, Live Orbits (orrery), location browser, Sky Quiz, and sophisticated searches embracing planets, comets, asteroids, DSOs, and up to 300,000 stars. ... An integral HTML guide to the solar system, a 1000-term astronomical dictionary, and the 2nd revised and enlarged edition of Aspects of Astronomy -- a book-length primer covering topics such as "What are the Stars? ... Stella provides direct links to extensive DSO and planetary information on the Web, all tightly unified with...
http://www.coeli.com/software/stella.zip - 4Mb - Download - Screenshot

Adastra FREESTAR
A complete and accessible astronomy experience is in store -- with real-time sky, comprehensive reports, arcsecond accuracy, and exciting features such as animation and live tracking. Adastra's powerful search encompasses planets, comets, asteroids, DSOs, and a multitude of stars, making... Adastra's point-and-click Solar Guide will take you on a tour of our Solar System interactively linking to both Sky and Picture windows. ... Advance, retard, or animate the simulation's clock by years, months, days, and minutes of sidereal or solar time, tracking any selected object through the sky in...
http://www.skynow.com/coeli/software/adastra.zip - 4Mb - Download - Screenshot

Adastra Plus
A complete astronomy experience is in store -- with real-time sky, comprehensive reports, arcsecond accuracy, and exciting features such as animation and live orbital tracking. Adastra's powerful search encompasses planets, comets, asteroids, DSOs, and a multitude of stars, making exploration... Solar Guide takes you on a tour of our Solar System interactively linking to both Sky and Picture windows. ... Advance, retard, or animate the simulation's clock by years, months, days, and minutes of sidereal or solar time; track any selected object through the sky in both real-time or fast-forward.
http://www.skynow.com/coeli/software/astrapl.zip - 4Mb - Download - Screenshot

C88
C88 is an informational tool for amateur astronomers. It provides detailed informations about the celestial sphere objects, visible with naked eyes and for the use of an eyepiece of a modest amateur telescope to observe deep sky objects. Complex informations about the planets, sun and moon... C88 bases on the extensive data of the Bright Star Catalogue (9110 entries) and of the Saguaro Astronomy Club Deep Sky Database (10700 entries). ... The "solar system section" of C88 gives informations about the pysical, observational and optical parameters of the planets as well as it's orbital and...
http://www.alcyone.de/c88/c8812.zip - 11Mb - Download - Screenshot

Orbit Xplorer
Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Input mass, radius, coordinates and velocity components of 2 to 10 bodies manually or by dragging and dropping predefined bodies. Then watch how the orbits evolve under the mutual... Simulations include elliptical satellite orbits, Kepler's laws, double star, geocentric and heliocentric world view, Lagrange points, gravity assist, Hohmann orbit, extrasolar planet, inner solar system.
http://www.ottisoft.com/orbitx20.exe - 3Mb - Download - Screenshot