A place that requires one year for light to reach is one light year distant from us.Our solar system is indeed very small. It is part of the Milky Way. And in this Milky Way there are millions of solar systems. The diameter of our Milky Way is about 80,000 light years. So you ...
universe n. 宇宙neighbourhood n. 邻里Milky Way 银河galaxy n. 星系billion n. 十亿common adj. 共同的根据短文内容填入所缺单词(每空一词)。1. Our solar system is not the thing in the universe.2. The Sun is just one of the billions of in the Milky Way galaxy.3. A galaxy is a group of...
Our Solar System豆瓣评分:0.0 简介:Born almost 5 billion years ago at the edge of the Milky Way galaxy, our Solar System is a place filled with mystery and wonder. In the last fifty years, we have learned more than ever about the farth
–Number of stars:about 200 billion –Rotation time:250 million years Our home galaxy's disk is about 100,000light-yearsin diameter and just 1000 light-years thick, according toLas Cumbres Observatory. Just as Earth orbits thesun, the solar system orbits the center of the Milky Way. Despite...
aThe sun and its planets are called the solar system,and our solar system is a small part of a much larger group of stars and planets,called the Galaxy or the Milky Way. 太阳和它的行星称太阳系,并且我们的太阳系是一个更大的小组的一个小部分星和行星,称星系或银河。[translate]...
The Milky Way is the ___ where our solar system is located. A. planet B. galaxy C. universe D. constellation 相关知识点: 试题来源: 解析 B。本题考查银河系相关的概念。选项A“planet”(行星)与银河系概念完全不同;选项B“galaxy”(银河系),我们的太阳系位于银河系中,符合题意;选项C“univer...
百度试题 结果1 题目45. Our solar_ system (体 ) is a small part of a much larger group of stars and planets, called the Milky Way. 相关知识点: 试题来源: 解析 答案见上5.system 反馈 收藏
Born almost 5 billion years ago at the edge of the Milky Way galaxy, our Solar System is a place filled with mystery and wonder. In the last fifty years, we have learned more than ever about the farthest reaches of our world. With dramatic full-color photographs and spacecraft images, ...
Our Solar System 2024 pdf epub mobi 电子书 图书描述 Born almost 5 billion years ago at the edge of the Milky Way galaxy, our Solar System is a place filled with mystery and wonder. In the last fifty years, we have learned more than ever about the farthest reaches of our world. With ...
The sun and its planets are called the solar system(太阳系), and our solar system is a small part of a much larger group of stars and planets , called the Galaxy(银河)or the Milky Way(银河系). There are over 200 billion (5) in the Galaxy, and our sun is only ...