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Topic: Trojan asteroid


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  Kids.net.au - Encyclopedia Asteroid -
Asteroids composed largely of ice are known as comets.
A large group of asteroids have orbits between the orbits of Mars and Jupiter, roughly 2 to 4 AU, in a region known as the Main belt.
Asteroids are classified into spectral types by their optical spectrum, which corresponds to the composition of the asteroid's surface material.
www.kids.net.au /encyclopedia-wiki/as/Asteroid   (1073 words)

  
 AllRefer.com - Trojan asteroids (Astronomy, General) - Encyclopedia
Trojan asteroids, two groups of asteroids that revolve about the sun in the same orbit as Jupiter; one group is about 60° ahead of the planet in the orbit, the other about 60° behind it.
The Trojan asteroids represent one possible special solution to the famous three-body problem (see celestial mechanics), with each group forming an equilateral triangle with Jupiter and the sun.
The first Trojan asteroid discovered was Achilles, observed in 1904 by the German astronomer Max Wolf; all of these asteroids are named for heroes of the Trojan War.
reference.allrefer.com /encyclopedia/T/Trojanas.html   (223 words)

  
 Trojan Asteroids Information and links   (Site not responding. Last check: 2007-11-05)
The subsequent evolution of Trojan asteroids is the outcome...
The Trojan asteroids are held captive by the...
Trojan asteroids have a semi-major axis between 5.05 AU and 5.40 AU, and lie in elongated, curved...
www.seespyware.com /trojan-asteroids.html   (877 words)

  
 Encyclopedia article on Solar system [EncycloZine]   (Site not responding. Last check: 2007-11-05)
Asteroids are objects smaller than planets that lie roughly within the orbit of Jupiter and are composed in significant part of non-volatile minerals.
Asteroid moons are asteroids that orbit larger asteroids.
Meteoroids are asteroids that range in size from roughly boulder sized to particles as small as dust.
encyclozine.com /Solar_system   (2247 words)

  
 Virtual Eclipse - Science Fiction - Encyclopedia - A   (Site not responding. Last check: 2007-11-05)
Moon (formerly an asteroid and a starship) Achilles started life as a Trojan asteroid, called 588 Achilles (or 1906 TG), and was located at the Lagrangian point ahead of Jupiter.
The Asteroid is always capitalised (often in quotation marks) when written and the word 'The' stressed when it is spoken to differentiate it from any other asteroid.
Because of differentiation, larger asteroids usually have metallic cores surrounded by lighter rocky materials and are economic to mine.
virtualeclipse.aboho.com /scifi/pedia/a.htm   (1432 words)

  
 Solar system -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-05)
The name is also sometimes used to refer to asteroids and comets in general, or to asteroids below 10 km in diameter.
They are subdivided into (Click link for more info and facts about asteroid group) asteroid groups and based on their specific orbital characteristics.
The theory says that Nemesis creates periodical perturbations in the asteroids and comets of the solar system causing a shower of large bodies and some of them hit Earth causing destruction of life, although this theory is no longer taken seriously by most scientists.
www.absoluteastronomy.com /encyclopedia/s/so/solar_system.htm   (2791 words)

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