The core will shrink, giving off the last of its energy, and the Sun will finally die. 4.According to paragraph 2, Population I stars and Population II stars differ from each other in terms of both A. how old they are and where in their galaxies they are found B. how old they ...
There are two populations, or groups, of stars that make up the galaxy: Population I (newer, heavier) and Population II (older, lighter). Learn the distinct compositions and cosmic behavior of these two populations, including how they form. ...
Chemical compositions adopted for Population I and II stars are, X =0.7 and Z =0.02, and X =2脳10 4 , respectively. Evidence collected indicates that the open cluster NGC 188 and the globular cluster M92 are the representative samples of the oldest Population I and extreme Population II ...
小站托福备考平台为广大托福考生提供托福听力tpo50 Star Death(恒星的衰亡)According to paragraph 2, Population I stars and Population II stars differ from each other in terms of both 答案及题目解析。小站教育,助力中国学生绽放出国留学梦想。
population I, population II The two classes into which stars and other celestial objects within a galaxy can be divided; the distinction is basically that of age, and the most obvious distinguishing characteristics are the objects' space distribution and chemical content (seemetallicity). The classif...
网络第一星族 网络释义 1. 第一星族 天文词汇 P ... poor galaxy cluster 稀少星系团 、[贫星系团]population I第一星族population II 第二星族 ... www.for68.com|基于6个网页 例句 释义: 全部,第一星族
Population II stars are the old metal poor stars that form the halo of the galaxy. Globular clusters are population II objects. Population I stars are younger and more metal rich. They form the disk of the galaxy. The sun is an intermediate age population I star. Figure 12a is an ...
be distinguished by their locations. Our galaxy, the Milky Way, is shaped like a flat disk surrounding a central bulge. Whereas Population I stars are found mainly in the galactic disk, Population II stars mostly reside in the central bulge of the galaxy and in the halo surrounding this ...
网络释义 1. 第二类星族 我们现在看到的最古老的恒星,称为第二类星族(Population II stars) ,应该是稍微晚一点才形成的第二代恒星。和类似太阳的 … tw.knowledge.yahoo.com|基于2个网页
stars: individual: HD 122563stars: low-massstars: Population IIGalaxy: halostars: individual: HD 103095We have determined the angular diameters of two metal-poor stars, HD 122563 and Gmb 1830, using CHARA and Palomar Testbed Interferometer observations. For the giant star HD 122563, we derive ...