Sun 3D Screensaver
The Sun is the most prominent feature in our Solar System. It is the largest object and contains approximately 98% of the total solar system mass. One hundred and nine Earths would be required to fit across the Sun's disk, and its interior could hold over 1. ... Download this screensaver and see the dominant star of the Solar system in all of its cosmic beauty! ... Want to have a look now? ... This layer has a mottled appearance due to the turbulent eruptions of energy at the surface? ... 3 million Earths.
http://www.space-screensavers.com/files/sun3d.exe - 3Mb - Download - Screenshot

3D Solar Traveler Screensaver
Our award-winning 3D screensaver will impress you by realism of 3D animated space scenes. Fly around our planets, amaze yourself by beauty of our deep space and enjoy lovely background music ! Optional cinematic camera makes you feel greatness of deep space. ... Camera is traveling across whole solar system with detail views on each planet. ... There are also other available options star dust, camera speed you can even set your own MP3 as a custom soundtrack and many more features.
http://www.soft2d.com/graphics_&_m...ensavers/files/traveler_setup.exe - 4Mb - Download - Screenshot

Jupiter 3D Space Tour
Fascinating 3D animated space flight near the largest planet within the solar system - Jupiter. Enormous "gas giant" planet is 315 times more massive than Earth. Jupiter deserve to term it a "failed star", although it would need to be some heavier to become a Second Sun. ... Numerous moons of Jupiter also makes it looks like entire solar system. ... Along with beautiful auroras, remarkable faint ring and other effects. ... Careful and realistic atmospheric animation is one of main features of this screensaver.
http://www.fpsoftlab.com/jupiter3d.exe - 3Mb - Download - Screenshot

Newton's Aquarium
Newton's Aquarium is a solar system construction set that allows students to create and explore situations involving any number of stars, planets, moons and asteroids. This software takes an interactive, visual approach to physics. Newton's Aquarium will help students develop an intuition for... By creating and exploring their own solar systems with Newton's Aquarium, students encounter the core concepts in classical physics. ... Online help, lesson plans and student activities are provided to help teachers integrate the software into their curriculum.
http://www.LivingGraphs.com/common/products/na/files/na.msi - 2Mb - 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... 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 rotational data. ... positions, magnitudes, sizes, spectral data, catalogue references) as well as specific data, like double/multiple star...
http://www.alcyone.de/c88/c8812.zip - 11Mb - 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

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

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

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... Sky charts can include stars, constellations, deep sky objects, and solar system objects, and can be enhanced by the addition of labels, coordinate system grids, and reference lines. ... CyberSky provides an excellent way to learn the names and positions of the stars, constellations, and deep sky...
http://www.cybersky.com/csky331s.zip - 995Kb - 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