Facts about Andromeda While Andromeda is the largest galaxy in the Local Cluster it may not be the most massive. The Milky May is thought to contain more dark matter, which could make it much more massive. Since it is the nearest spiral galaxy to us, astronomers use the Andromeda Galaxy t...
What will happen when we hit the Andromeda galaxy? When the Milky Way and Andromeda merge in about 4.5 billion years, they will probably form a huge elliptical galaxy. Chances are that our solar system will be relatively unaffected. We might be pulled away from the center of the galaxy, or...
The Andromeda Galaxy is a large spiral galaxy located about 2.5 millionlight-yearsaway from Earth. It is the largest galaxy in thelocal group, which also contains theTriangulum Galaxy. Cataloged as Messier 31 (M31), this deep sky object is observable for much of the year in the northern h...
Galaxy Classification Astronomers sort galaxies into three main types by their shapes:spirals,ellipticals, andirregulars, and further divide them into subtypes based on their particular characteristics. Facts about Galaxies Find out more about one of the galaxies by selecting it below....
2. What did Edwin Hubble discover about the Andromeda Galaxy? It is a separate galaxy and not part of the Milky Way. It is half the size of the Milky Way. It is visible without a telescope. It is not arranged in a spiral shape. ...
Galaxy: Milky Way Constellation: Andromeda Celestial Hemisphere: Northern Main Star : Yes Visual / Apparent Magnitude : 2.07 Visible From Earth : Yes Absolute Magnitude : -1.84 Radial Velocity : 0.06000 ± 0.13 km/s Iron Abundance (Fe/H) ...
Andromeda is on a collision course with our galaxy. It is believed that they will merge to form an even bigger galaxy in around 4.5 billion years.3 However, it is improbable that any given star or planet will individually collide, as the space between them is immense. Such collisions are ...
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The discovery of the Cepheid variable allowed Hubble to deduce that the Andromeda Nebula was not a nearby cluster of stars, but an entirely different galaxy. By the 1930s, most astronomers had been convinced that the Milky Way galaxy was but one of millions in the universe. The very notion...
(called Sagittarius A*), and is crossed by a bar. The Milky Way began forming around 12 billion years ago and is part of a group of about 50 galaxies called the Local Group. The Andromeda Galaxy is part of this group as are numerous smaller galaxies, including the Magellanic Clouds. ...