Gourt > Science > Astronomy > Solar System (48)
The solar system comprises the Sun and the retinue of celestial objects gravitationally bound to it: nine planets and their 158 currently known moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust. Astronomers are debating the classification of a potential tenth planet and other trans-Neptunian objects.
The principal component of the solar system is the Sun (astronomical symbol ☉); a main sequence G2 star that contains 99.86% of the system's known mass and dominates it gravitationally. Because of its large mass, the Sun has an interior density high enough to sustain nuclear fusion, releasing enormous amounts of energy, most of which is radiated into space in the form of electromagnetic radiation, including visible light. The Sun's two largest orbiting bodies, Jupiter and Saturn, together account for more than 90% of the system's remaining mass. (The Oort cloud too might hold a substantial percentage, but as yet its existence is unconfirmed).
), Neptune (), and Pluto (). Many planets have moons orbiting them, and the largest are encircled by planetary rings of dust and other particles. The planets (with the exception of Earth) are named after gods and goddesses from Greco-Roman mythology.
More on [ Solar system ]
Extrasolar Planets :: Astronomy
Software :: Astronomy
Space Plasmas :: Plasma
Missions :: Space
Chilliest place in the Solar System ever measured by spacecraft found on the Moon, eclipsing the previous record he... http://ow.ly/16aobY
noqout (tanner ) Wed, 16 Dec 2009 22:49:10 -0000
Chilliest place in the Solar System ever measured by spacecraft found on the Moon, eclipsing the previous record he... http://ow.ly/16aobY
SYSTEM) http://bit.ly/4KHqai SOLAR PANELS
nontoxic2009 (Carol J Case) Wed, 16 Dec 2009 22:47:45 -0000
SYSTEM) http://bit.ly/4KHqai SOLAR PANELS
Alamosa High Flips Switch on 8 MW Solar PV System | Solar Energy News http://bit.ly/5VZmCe
Solar6 (Dino Solar) Wed, 16 Dec 2009 22:44:58 -0000
Alamosa High Flips Switch on 8 MW Solar PV System | Solar Energy News http://bit.ly/5VZmCe
Alamosa High Flips Switch on 8 MW Solar PV System | Solar Energy News: The solar system will be used to provide a p... http://bit.ly/4WxLJL
stovedude (Ronald Harral) Wed, 16 Dec 2009 22:44:58 -0000
Alamosa High Flips Switch on 8 MW Solar PV System | Solar Energy News: The solar system will be used to provide a p... http://bit.ly/4WxLJL
Alamosa High Flips Switch on 8 MW Solar PV System | Solar Energy News http://bit.ly/5wwcIp
diysolarpanel (avn) Wed, 16 Dec 2009 22:44:57 -0000
Alamosa High Flips Switch on 8 MW Solar PV System | Solar Energy News http://bit.ly/5wwcIp
Alamosa High Flips Switch on 8 MW Solar PV System | Solar Energy News http://bit.ly/6pFOL2
smartecoliving (smartecoliving) Wed, 16 Dec 2009 22:44:56 -0000
Alamosa High Flips Switch on 8 MW Solar PV System | Solar Energy News http://bit.ly/6pFOL2
The Nine Planets - Overview, sections dedicated to each planet and the smaller bodies - with data, information and some pictures - glossary and appendices.
Meta Description: [ Information about each planet and moon in our solar system with many pictures, discussion of the history of its discovery, exploration, and physical characteristics. In addition to the planets, there are also pages about the Sun, many moons, and asteroids, comets and meteorites. ]
Views of the Solar System - Comprehensive multimedia tour with statistical data, detailed information, pictures and videos. Also includes educational resources.
Meta Description: [ Views of the Solar System presents a multimedia adventure unfolding the splendor of the Sun, planets, moons, comets and asteroids. Discover the history of space exploration, rocketry, early astronauts, space missions, and a large image/video archive. ]
A Planet Pursuit - Pictures, facts and general information on the nine planets.
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About Atmosphere - Summary information regarding the atmospheres of each planet in our solar system.
Astronomy 161: The Solar System - Overview with historical background and basic astronomy concepts, details about planets, satellites, asteroids, comets and meteors.
Astronomy Today - Solar System - Fairly detailed information about our sun and its planets.
Meta Description: [ Learn about the nine planets and their moons along with the Sun and the asteroid belt. ]
Computing Planetary Positions - A detailed online tutorial on how to compute planetary locations using math formulas.
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DiscoverThePlanets.Com - Various images, brief information, moons, summaries of past and planned missions.
Meta Description: [ Discover The Planets is your ultimate source for any and all information you need about our corner of the Universe! ]
Endless Boundaries - Information on the Sun, planets and moons.
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.
Free Software for Planetary Science - Image processing browers for Mariner 6, 7, 9, 10, Venera 15/16, and Viking Orbiter.
Meta Description: [ Free Software for Planetary Science ]
Gazetteer of Planetary Nomenclature - Protocols for naming planetary features, by the Working Group for Planetary System Nomenclature of the International Astronomical Union.
Meta Description: [ Planetary nomenclature, like
terrestrial nomenclature, is used to uniquely identify a feature on the
surface of a planet or satellite so that the feature can be easily
located, described, and discussed. This volume contains detailed
information about all names of topographic a... ]
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Northeast Regional Planetary Data Center - Includes list of available image collections and how to obtain the data at the facility (no images are online).
Meta Description: [ Part of the NASA Regional Planetary Image Facility (RPIF) network. Holdings include planetary images, maps, and related mission and planetary geology documents and books. ]
Nova Celestia - Provides overview and original illustrations of elements.
Meta Description: [ The Solarsystem: Astronomical information and space art. Solarsystem in the past and the present solarsystem. Terrestrial planets of the inner solarsystem... Jovian planets in the outer solarsystem, Kuiper belt objects ]
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.
Meta Description: [ Gravitation Simulation Applet. Solar System model. Lagrange points. Zoom in/out, destroy, create planets. ]
Orrery: The Solar System in Action - A concise tour containing numerous educational resources, and support for Spacetech's Orrery application.
Meta Description: [ Learn about the solar system - and beyond! The amazing planets, their moons, asteroids, comets and the sun - our star. Resources for educators, books, software etc. ]
Our Solar System - Planets Alive - Offers overview information. Includes list of planetary space missions.
Planetary Cartography and Graphics by Ralph Aeschliman - Planetary maps and graphics of Mars, the Moon and Venus.
Meta Description: [ Ralph Aeschliman's image maps, albedo maps and topo maps of Mars, Venus, the Moon. Here are selected images of Mars, image maps of Spirit and Opportunity rover landing sites, maps of Valles Marineris. The new online Atlas of Mars divides Mars into 20 quadrangles and has maps of each. These are th... ]
Planetary Fact Sheet - Table of essential measurements and facts regarding the nine planets with links to highly detailed summaries.
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Planetary Materials Curation - Features Moon rocks, Mars meteorites, and space exposed materials at NASA's curation office.
Planetary Science Institute - Research and educational institute with projects to study planets, asteroids, and comets.
SkyScopes - Information about planetary astronomy and space exploration and habitat. Online chat, message boards, and related links. Sells replicas and toys.
Meta Description: [ Space Exploration News Information and Products. Space Exploration products include everything from Astronaut Space Suits to Rockets and more.
We carry Apollo, Space Shuttles, Astronauts and other Space Exploration Replicas. ]
Smiley's Planet - Explore the solar system's planets. Includes pictures, descriptions, statistical information and a special section on the latest voyage to Mars.
Meta Description: [ Welcome to Planet explorer,explore all the known planets in the universe, Keep your head above the clouds ]
Solar System - Celestial Mechanics - A theory about the rotation of sun and planets, planetary rings, origin of solar system, solar cycles and climate variations.
Meta Description: [ New ideas about the rotation of sun and planets ]
Solar System Dynamics - Web-based resources accompanying the book Solar System Dynamics, by Carl D. Murray and Stanley F. Dermott.
Meta Description: [ Solar System Dynamics by Carl D. Murray
and Stanley F. Dermott : the first textbook to provide a comprehensive
description of the dynamical features of the Solar System. ]
Solar System Dynamics - Provides detailed information related to known bodies in orbit around the Sun. Ephemerides, physical parameters, Earth close-approaches, observer tools.
Meta Description: [ This site provides information related to the orbits, physical charateristics, and discovery circumstances for most known natural bodies in orbit around our sun. ]
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Solar System Ephemeris - Providing ephemeris of a variety of Sun orbiting bodies.
Solar System Exploration Home Page - The Solar System Exploration Home Page is part of NASA's Office of Space Science and describes NASA's program to explore the solar system.
Meta Description: [ The Solar System Exploration Home Page is part of NASA's Office of Space Science and describes NASA's program to explore the solar system. ]
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.
Stardate Online: Guide to the Solar System - Contains an outline of the formation and evolution of planets, comets, asteroids, and of their features and exploration.
The Planetary Society: Our Solar System - Concise information about all planets, comets and asteroids.
The Solar Space Station - Facts, descriptions and pictures, with sections about the Sun, the planets and meteors and asteroids.
Meta Description: [ All sorts of amazing useful information about the Solar System including planets, vital statistics, images, the sun and all latest news. ]
The Solar System - History of and basic facts about major solar system bodies.
Meta Description: [ The definitive guide to anything and
everything about the solarsystem. Also with a quiz to test your knowledge ]
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The Solar System - Detailed guide to the sun and planetary system, asteroids, comets, meteor hits on Earth and the other planets.
The Solar System in Pictures - Quizzes and images about all the bodies of our planetary system.
Meta Description: [ Pictures and quizzes about all the planets in the solar system. ]
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Uranus, Neptune, and Pluto - Journey to the outer reaches of the solar system and discover what scientists have learned about Uranus, Neptune, and Pluto.
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.
Meta Description: [ Home page for the USGS Astrogeology Program, featuring planetary imagery, research, GIS, mapping, and image processing software. ]
Virtual Solar System - Images, facts and quizzes about the nine planets. Also includes a scale model.
Meta Description: [ A guide to the Solar System for visitors of all ages featuring a scale model, interactive quiz, text and images ]
Welcome to the Planets - Select images from NASA's planetary exploration program.
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.
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