Orrery: Solar System Simulator A Java applet that simulates gravitating masses. Features a working model with motions and sizes of 70 planets and moons to scale.
SkyScopes Information about planetary astronomy and space exploration and habitat. Online chat, message boards, and related links. Sells replicas and toys.
The Solar Space Station Facts, descriptions and pictures, with sections about the Sun, the planets and meteors and asteroids.
Views of the Solar System Comprehensive multimedia tour with statistical data, detailed information, pictures and videos. Also includes educational resources.
Solar System Dynamics Web-based resources accompanying the book Solar System Dynamics, by Carl D. Murray and Stanley F. Dermott.
A Planet Pursuit Pictures, facts and general information on the nine planets.
Solar System Simulator Shows the position of Venus, Earth and Mars at any date from 1900-2100.
BBCi Space: Solar System 3D tour including videos with audio and text information on the Sun and the bodies orbiting around it. (Shockwave and Realplayer required)
Astronomy 161: The Solar System Overview with historical background and basic astronomy concepts, details about planets, satellites, asteroids, comets and meteors.
Solar System Dynamics Provides detailed information related to known bodies in orbit around the Sun. Ephemerides, physical parameters, Earth close-approaches, observer tools.
Solar System Simulator Online software that generates views of the bodies of our planetary system at any date from any artificial or natural point of observation.
USGS Astrogeology Research Program Features planetary imagery, research, GIS, mapping, and image processing software. The site provides information about the group and about the Solar System.
Planetary Fact Sheet Table of essential measurements and facts regarding the nine planets with links to highly detailed summaries.
The Solar System History of and basic facts about major solar system bodies.
The Solar System Detailed guide to the sun and planetary system, asteroids, comets, meteor hits on Earth and the other planets.
Rotation of Sun and Planets The rotation period of a large body circled by one or more satellites can be calculated theoretically.
Planetary Science Institute Research and educational institute with projects to study planets, asteroids, and comets.
Windows to the Universe Aimed at portraying Earth and Space Sciences in a fun way. Includes information about space weather, global space physics and a real time movie of current solar activity.
Virtual Solar System Images, facts and quizzes about the nine planets. Also includes a scale model.
The Nine Planets Overview, sections dedicated to each planet and the smaller bodies - with data, information and some pictures - glossary and appendices.
Gazetteer of Planetary Nomenclature Protocols for naming planetary features, by the Working Group for Planetary System Nomenclature of the International Astronomical Union.
Exploring the Planets Sponsored by the National Air and Space Museum, contains many interesting facts about the planets, pictures, comparisons and a section dedicated to spacecraft.
