作业帮根据你对太阳系的了解用英语写一段话(不少于6句)
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根据你对太阳系的了解用英语写一段话(不少于6句)
根据你对太阳系的了解用英语写一段话(不少于6句)
根据你对太阳系的了解用英语写一段话(不少于6句)
Solar system is by receives the system which the gravitational pull restraint the heavenly body is composed,its most wide range approximately may extend to 1 light year outside.Solar system's main member includes:Sun (star),nine planets (including Earth),innumerable planetoids,multitudinous satellite (including moon),but also has the comet,the meteor as well as the massive dust matter and the thin gaseous state matter.
These planets all take sun as center by elliptical orbit revolution,although extremely approaches except Mercury to the circle.In the planetary orbit more or less (is called ecliptic surface and take the revolution in the identical plane as datum).The ecliptic surface and the solar equator only have 7 inclining.Pluto's track mostly was separated from the ecliptic surface,the gradient has amounted to 17.The above graph specific was higher than the ecliptic surface from to pass the angle of view to demonstrate various tracks relative size and the relations (non- circle phenomenon was obvious).They circle the orbital motion the direction to be consistent (from the solar North Pole looked is counter clockwise),therefore,the scientists remove pluto outside the nine planets.Besides Venus and Uranus rotation direction also so.
太阳系是由受太阳引力约束的天体组成的系统,它的最大范围约可延伸到1光年以外.太阳系的主要成员有：太阳（恒星）、九大行星（包括地球）、无数小行星、众 多卫星（包括月亮）,还有彗星、流星以及大量尘埃物质和稀薄的气态物质.这些行星都以太阳为中心以椭圆轨道公转,虽然除了水星的十分接近于圆.行星轨道中或多或少在同一平面内（称为黄道面并以地球公转轨道面为基准）.黄道面与太阳赤道仅有7度的倾斜.冥王星的轨道大都脱离了黄道面,倾斜度达17度.上面的图表从一个特定的高于黄道面的透视角显示了各轨道的相对大小及关系（非圆的现象显而易见）.它们绕轨道运动的方向一致（从太阳北极上看是逆时针方向）,因此,科学家们把冥王星排除在九大行星之外.除金星和天王星外自转方向也如此.