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 bulge.Population II stars date to the ...
A. Milky Way B. Andromeda Galaxy C. Elliptical galaxy D. Irregular galaxy 相关知识点: 试题来源: 解析 A。解析:银河系(Milky Way)是螺旋状星系。选项 B 仙女座星系也是螺旋星系,但本题问的是哪个星系有螺旋形状,首先想到的通常是我们所在的银河系。选项 C 椭圆星系不是螺旋形状。选项 D 不规则星系也不...
百度试题 结果1 题目(b) Which galaxy is our solar system in?B(1)□ A Cartwheel B Milky Way□ C Sombrero□ D Sunflower 相关知识点: 试题来源: 解析 B 反馈 收藏
Determining the age of the universe has been more complicated. Most stars in the universe are clustered into enormous disk-like galaxies. The distance between our galaxy, known as the Milky Way, and all others is increasing. In fact, all galaxies are moving away from one another, evidence ...
NASA's twin Voyager spacecraft have given astronomers their first direct look at emissions important for estimating the rate at which the Milky Way is making stars, opening a new avenue for studying star-forming regions in the galaxy.doi:10.1007/BF00199986Spotts, Pete...
Which star is at higher temperature? (a) A red star (b) A blue star? Why are there different types of galaxies? Fill in the blank. According to Hubble's law, the greater a galaxy's redshift, the ___. Fill in the blank. Most of the mass of the milky way ...
Simultaneously, other astronomers were discovering that Farth and the sun belonged to a large collection of stars they called a galaxy In 1925, American astronomer Fdwin Hubble proved other galaxies existed in addition to Farth's galaxy. which had been duhhed the Milky way.Hubble made further ...
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 bulge.Population II stars date to the ...
The redder the light is, the older and more distant the galaxy is. The detection of such ancient galaxies adds intrigue (神秘色彩) to theories of how the very first galaxies formed, according to astronomers. Were there many large, young galaxies in the early universe that are obscured from ...
the stars in the blue component quickly allowed us to identify it as the remains of a dwarf galaxy (Gaia-Enceladus) which impacted onto the early Milky Way. However, the nature of the red population, and the epoch of the merger between Gaia-Enceladus and our Galaxy were unknown until now...