资源描述：
《宇宙介绍英ppt课件.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、TheUniverse无相关结果类别: 来源: 难度:类别: 来源: 难度:Planetarysystemisthemostbasicofuniverse。Thereareeightplanetsinthesolarsystem.Planetshavethesatellite,asatelliteoftheEarth:theMoon,thereareotherplanetsoutsideoursolarsystem.行星是组成宇宙的最基本系统.太阳系中共有八大行星,行星都有卫星绕其运转,地球有一个卫星:月
2、球,有证据表明,太阳系外也存在其他行星系统.PlanetStarsliketheSunisitselfabletoemitlightandheattheplanet.Wehavemorethan100billionstarswithintheMilkyWayGalaxy.Ifeventhousandsofstarstogethertoformastar,thisisthecluster（星团）.Theyfoundthatmorethan1000suchclustersintheMilkyWayGalaxy
3、.恒星就是像太阳一样本身能发光发热的星球.我们银河系内就有1000多亿颗恒星.如果成千上万颗星聚在一起,形成一团星,这就是星团.银河系里就发现1000多个这样的星团.Stars太阳系就是我们现在所在的恒星系统.它是以太阳为中心,8颗行星，至少165颗已知的卫星,和数以亿计的太阳系小天体.SolarSystemSolarSystemisthatwearethestarsinoursolarsystem.ItiscenteredontheSun,and8Planetatleast165knownmoons,a
4、ndbillionsofsolarsystemsmallbody.MercuryVenusEarthMarsJupiterSaturnUranusNeptune银河系是太阳系所在的恒星系统,包括一千二百亿颗恒星和大量的星团、星云.它的直径约为100,000多光年,中心厚度约为12,000光年TheMilkyWayTheMilkyWayGalaxyistheGalaxystarsystemwherethesolarsystem,including120billionstarsandplentyofstarc
5、lusters,Itsmorethan100,000lightyearsindiameter（直径）,Centerthicknessofabout12,000lightyears.Galaxies,isthestarsintheuniverse“island”,itisoneofthelargestandmostbeautifulcelestialsystem（天体系统)intheuniverse.Todate,about100billiongalaxieshavebeenobservedintheuni
6、verse.Someofthemwehaveclose,someveryfaraway,thefurthestgalaxyknowntodayalmost15billionlightyearsawayfromus.星系,是宇宙中庞大的星星的"岛屿",它也是宇宙中最大、最美丽的天体系统之一.到目前为止,人们已在宇宙观测到了约一千亿个星系.它们中有的离我们较近,有的非常遥远,目前所知最远的星系离我们有将近一百五十亿光年.GalaxiesSpacethereisadifferencebetweentheuniv
7、erse,theuniversecontainsaspace.wearelivinginuniverse:Theuniverseincludedalltheplanets,themilkyway,evenweareallpartoftheuniverse.Theworldwelivein,thereisnoquestionoflivinginspace:OurEarth'sland,oceans,air,thesearenotpartofthespace,butEarth,youcanbasicallys
8、aythatalltheplanets,stars,plusthesumofthespace,itmeanstheuniverse.ThankYou!
