Реферат: Uranus and Neptune


The seventh planet from the sun is much like its gaseous neighbors,  witha cloudy surface, rapid winds, and a small rocky core.

Uranus: personification of heaven inancient myth

Perhaps because of a collision with a large object long ago, Uranus  orbitsat an extreme tilt of 98 degrees — sort of on its side. This causes  one poleto point toward the sun for decades, giving the planet strange  seasons.  

Uranus has numerous satellites and a faint set of rings. If all the  possiblesatellites being studied are confirmed, Uranus would have 16  regular and fiveirregular moons, making it the most populated planetary  satellite systemknown. Saturn is known to have 18 satellites (there may  be more, but they havenot been well-documented).

Historical notes 

Uranus was thought to be a star until William Herschel discovered in 1781 that it orbited the Sun.


The eighth planet from the Sun — well, some of the time it'seighth, but  more on that later — has a rocky core surrounded by ice,hydrogen,  helium and methane.Like the other gas planets, Neptune has rapidly  swirlingwinds, but it is thought to contain a deep ocean of water. Its  quick rotationfuels fierce winds and myriad storm systems. The planet  has a faint set ofrings and 8 known moons.  

Because of Pluto's strange orbit, Neptune is sometimes the most  distantplanet from the Sun. Since 1979, Neptune was the ninth planet  from the Sun. OnFebruary 11, 1999, it crossed Pluto's path and once  again become the eighthplanet from the Sun, where will remain for 228  years.

Neptune: roman god of water

Historical notes

Neptune was discovered in 1846 after mathematical calculations ofUranus' movements predicted the existence of another large body.

Список литературы

Дляподготовки данной работы были использованы материалы с сайта englishtopic.narod.ru/

еще рефераты
Еще работы по иностранному языку