Pluto Mission Comets Kuiper Belt Solar System Asteroids
Sun Saturn Jupiter Galaxies Furthest Planets


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Asteroids are categorized by where they appear in the Solar System:

Asteroid Belt: This is the main belt located between Mars and Jupiter.

They are sub-divided into: -

* Hungarias

* Floras

* Phocaea

* Koronis


* Themis

* Cybeles


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Near Earth Asteroids (NEA): They travel close to Earth: -

* Atens

* Apollos

* Amors

Trojans: These are located near Lagrange point in Jupiter. It has been observed and recorded that there are several hundred asteroids and may be more than a thousand unknown in the Trojan category. A few smaller ones are seen in the Lagrange points of Earth and Venus in the Trojan category.

There are a few asteroids found in the outer solar system known as Centaurs.

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There are several types of asteroids categorized mainly conforming to their Spectra (an ordered array of the components of emission or wave) and Reflective Power (albedo).

í M – Type: They are bright. (Reflective Power 0.10 – 0.18). Chemical Composition – pure nickel-iron.

í S – Type: They are, compared to ‘C’ types, relatively bright. (Reflective Power 0.10 – 0.22). Chemical Composition – a mixture of iron silicates, magnesium with metallic nickel-iron.

í C – Type: A vast majority of asteroids belong to this type. Very dark (Reflective Power 0.03).

í Rare Type: It has been found that there are about 10 to 15 very rare types as well.

A number of Asteroids are visible only through Binoculars or small telescopes.




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