土星介绍.ppt

SATURNSATURN1.EIGHT PIANETSEIGHT PIANETS2.土星土星为为太阳系八大行星之一，至太阳系八大行星之一，至太阳距离（由近到太阳距离（由近到远远）位于第六，）位于第六，体体积则仅积则仅次于木星。次于木星。Saturn is one of the eight planets in the solar system.The distance to the sun(from near to far)is sixth,and the volume is second only to Jupiter.3.土星主要由土星主要由氢组氢组成，成，还还有少量的氦与微量元素，内部的核心包括岩石和冰，外有少量的氦与微量元素，内部的核心包括岩石和冰，外围围由由数数层层金属金属氢氢和气体包裹着。和气体包裹着。Saturn is mainly composed of hydrogen,with a small amount of helium and other trace elements.The inner core includes rocks and ice,surrounded by several layers of metal hydrogen and gas.4.土星是扁球形的，它的赤道直径有土星是扁球形的，它的赤道直径有1212万公里，是地球的万公里，是地球的9.59.5倍。倍。Saturn is flat and spherical.Its equatorial diameter is 120,000 kilometers,which is Saturn is flat and spherical.Its equatorial diameter is 120,000 kilometers,which is 9.5 times that of Earth.9.5 times that of Earth.5.土星以平均每秒9.64公里的速度斜着身子绕太阳公转，其轨道半径约为14亿公里，绕太阳一周需29.5年。Saturn orbits the sun at an average speed of 9.64 kilometers per second.Its orbital radius is about 1.4 billion kilometers,and it takes 29.5 years to orbit the sun.6.土星有一个显著的行星环，主要的成分是冰的微粒和较少数的岩石残骸以及尘土。Saturn has a prominent planetary ring.The main components are ice particles and a few rock debris and dust.7.THANKSTHANKS8.