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The Milky Way and the Andromeda Galaxy are a binary system of giant spiral galaxies belonging to a group of 50 closely bound galaxies known as the Local Group, surrounded by a Local Void, itself being part of the Local Sheet [275] and in turn the Virgo Supercluster.
5 dni temu · This structure can be viewed as consisting of six separate parts: (1) a nucleus, (2) a central bulge, (3) a disk (both a thin and a thick disk), (4) spiral arms, (5) a spherical component, and (6) a massive halo.
We now know that the Milky Way consists of three components: (a) a flattened rotating disk with spiral arms, (b) a spherical halo, and (c) a galactic "bulge" that is a concentration of stars towards the center of the Galaxy. Material in these three different components --- disk, halo, bulge --- differ in kinematic properties (how they move ...
galaxies have three clearly differentiated parts: •The central part is called the bulge and contains de galaxy’s nucleus , which is in most (if not all) cases a supermassive black hole that the rest of components of the galaxy orbit
For this figure, label the various, basic parts of the galaxy and indicate the total diameter of the galaxy. Choose matching definition from left to right: Radar, Parallax, Spectroscopic parallax, Cepheid variable stars, Type 1a supernovae
Scientists sometimes categorize galaxies based on their shapes and physical features. Other classifications organize galaxies by the activity in their central regions – powered by a supersized black hole – and the angle at which we view them.
Galaxies consist of stars, planets, and vast clouds of gas and dust, all bound together by gravity. The largest contain trillions of stars and can be more than a million light-years across. The smallest can contain a few thousand stars and span just a few hundred light-years.
