PLUTO

Pluto is a dwarf planet cold dark, where the sun shines, as only a bright star in the sky. Pluto was discovered as the result of a search telescope inaugurated 1905 by the American astronomer Percival Lowell, postulated the existence of a distant planet beyond Neptune as the cause for slight disturbances in the movements of Uranus. Continued from members of the Lowell Observatory staff, the search ended successfully in 1930, when the American astronomer Clyde William Tombaugh found Pluto near the position Lowell had predicted. It was known as the ninth and outermost planet in the solar system more than 70 years to again as a dwarf planet by the International Astronomical Union following the discovery of a new solar system body: Eris.

Telehandler look at Pluto Pluto is smaller than the Erdmond, and consists of rock and ice. It has a thin atmosphere, the forms if they are close to the sun, but freezes as it moves away. Pluto's orbit is tilted further from the ecliptic to 17.2 °, as each of the eight planets, and is also very elongated. An orbit takes 248.5 years at an average distance of 5.9 billion kilometers (3.67 billion miles) from the sun and about 20 of those years, Pluto is closer to the sun as Neptune. These unusual properties, some astronomers, that it may, in fact, a huge asteroid.

Visible only through large telescopes, Pluto appears to have a yellowish color. Charon, Pluto is the only moon, probably once had a similar composition to its parent company dwarf planet. Today, however, Charon is mainly of dark water and Pluto bright mainly of methane ice. It may be that methane molecules have been gradually moved away from Pluto, Charon in the direction of the larger body stronger gravitational field. Like all objects in an orbital system, Pluto and Charon orbit around a common center of mass tourism. A large moon Charon's diameter (1,270 km - 790 miles) is about half that of Pluto (2320 km - 1440 miles) and accounts for 12% of the system mass. The system is the centre of mass tourism is outside the orbit of Pluto.

In 1994 the Hubble Space Telescope imaged 85 percent of Pluto's surface from which light and dark areas of an amazing contrast. Astronomers believe that the bright areas are shifting fields of nitrogen ice and the dark areas are areas of methane ice colored by interaction with sunlight. Some of the dark areas may also be valleys or fresh impact craters. These images support the theory that a comprehensive icecaps form Pluto's poles, especially if the dwarf planet is furthest from the sun.

Pluto and its moon, Charon With a density of approximately twice that of water, Pluto is obviously a lot of material from rockier than the other planets of the outer solar system. This may be the result of the nature of the chemical combinations that during the formation of the planet under cold temperatures and low pressure. Many astronomers believe it may be a former satellite states of Neptune, knocked in a separate orbit in the early days of the solar system. Charon could be an accumulation of the lighter materials resulting from the collision