The distance between our galaxy, the Milky Way, and the Andromeda galaxy is about 2.5 million light - years. What does 'light - year' actually measure? A. Time B. Distance C. Speed D. Mass 相关知识点: 试题来源: 解析 B。解析:光年是一种计量天体间距离的单位。它表示光在真空中一年所...
The Andromeda Galaxy The Sombrero Galaxy The Whirlpool Galaxy相关知识点: 试题来源: 解析 答案:The Milky Way。我们生活在银河系(The Milky Way)。仙女座星系(The Andromeda Galaxy)、草帽星系(The Sombrero Galaxy)和漩涡星系(The Whirlpool Galaxy)都不是我们所在的星系。反馈...
Milky Way Galaxy (sometimes simply called the Galaxy), astronomers do not have as complete an understanding of its nature as they do of some external star systems. A thick layer ofinterstellar dustobscures much of the Galaxy from scrutiny by opticaltelescopes, and astronomers can determine its ...
inMilky Way Galaxy Also known as: The Galaxy Written by Paul W. Hodge Professor Emeritus, Department of Astronomy, University of Washington, Seattle. Author ofThe Andromeda Galaxy;Higher then Everest: An Adventurer's Guide to the Solar System; and others. ...
Andromeda GalaxyGalactic StructureMilky Way GalaxySpiral GalaxiesComparisonHydrogen CloudsLuminositySize (DimensionsA comparison of some of the basic properties of M31 and the Milky Way indicates that in almost every respect M31 is larger than the Galaxy. It is more luminous, redder, more massive, ...
Milky Way Galaxy Facts The Milky Way Galaxy is our home galaxy in the universe. It is a fairly typical barred spiral with four major arms in its disk, at least one spur, and a newly discovered outer arm. The galactic centre, which is located about 26,000 light-years from Earth, ...
Exotic Objects,Milky Way,Science Astronomers study an unlikely stellar fountain of youth Observing Basics Strange Universe: Zero-power love affair Galaxies,Milky Way Andromeda’s collision course with the Milky Way: This Week in Astronomy with Dave Eicher ...
Our galaxy is part of a collection of galaxies called the Local Group, which includes the Milky Way; the Andromeda galaxy; a smaller spiral galaxy called Triangulum; and several dwarf galaxies, including the Large and Small Magellanic Clouds. The Milky Way and Andromeda are the two largest ...
The Milky Way Galaxy was one of two trillion galaxies believed to exist. The number of stars it contained was variously estimated to be over three billion to over four hundred billion stars. It generated its own magnetic field, which experienced dips and
The mass of the Milky Way, dark matter included, equals 1.5 trillion solar masses, according torecent NASA estimates. The galaxy's visible matter is distributed between its 200 billionstars, their planets and the massive clouds of dust and gas that fill the interstellar space. Astronomers aren'...