Fewer than 1,000 stars have proper names, however, so that doesn’t seem like a crisis—which is a good thing because there are hundreds of billions of stars in the Milky Way! So the problem isn’t naming them so much as naming them consistently....
【1】What is true about the Milky Way? A.There are only stars inside it. B.There is a black hole at its center. C.It’s the biggest spiral galaxy in the universe. D.It takes 100,000 years to get there from Earth. 【2】Which of the following is the main factor in categorizing ...
3.What do we use to work out how far away a star is from the earth?4.How many stars are there in the Milky Way?5.What does "Milky Way" mean in Chinese?第3个 e have light-years `` 答案 1.the sun together with its planets,travels in the Milky Way2.the earth seemed to be...
结果1 题目 2 What do we know about the Milky Way?B A. It's one of billions of stars. B. It's one of billions of other galaxies. C. It's a huge island of light. D. It's a world like ours. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
STARSStudents and Technology in Academia, Research and Service Alliance(US NSF) STARSStudents That Are Really Special STARSSTART Tracking And Reporting System STARSSouth Trenton Area Residents' Society(Trenton, NJ) STARSSpace Transportation Accounting and Resources System(KSC) ...
Ali Sundermier
Age of the Milky Way There are various methods that we use to estimate the age of our Galaxy. Scientists have used star dating methods to date old stars and found some as old as 12.6 billion years (those in the globular cluster M4). This sets a lower bound for the age. ...
In addition to the 100 billion to 400 billion stars in our galaxy, a similar number of planets likely exist in the Milky Way — some of them part of solar systems and some floating freely. Between the stars sit innumerable nebulas, which are clouds of gas and dust. The vast majority of...
Think stars don’t move? Think again! When you look at the sky at night the stars may appear to stay in the same place. But stars are always on the move—they are just so far away that the movement is hard to see.But some stars move in ways that appear to be strange to be rea...
Using more sophisticated methods, astrophysicists and astronomers have provided two more clues to the structure of the Milky Way. "When we measure velocities of stars and gas in our galaxy, we see an overall rotational motion that differs from random motions," Sarah Slater...