5 Out-Of-This-World Facts About The Andromeda Galaxy

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The Andromeda Galaxy is one of the most famous celestial bodies. It is located 2,537,000 light-years from Earth and is up to be seen on very dark evenings. The galaxy will one day collide with our Milky Way and the two will merge into one. As if these interesting facts were not enough, the galaxy still has other curiosities.

1: Greater than our galaxy

 Andromeda-and-Moon




The Andromeda Galaxy has an approximate diameter of 220,000 light years, which is more than double the Milky Way. If it were bright enough, Andromeda would look bigger than the moon in the sky (as in the picture above), even though it was farther away.

2: Trillions of stars

In the Milky Way it is estimated that there are between 100 billion and 400 billion stars, but the Andromeda Galaxy has about a trillion stars. NASA's Hubble Space Telescope has discovered a large and rare population of hot, bright stars as part of these trillions.

3: Black holes

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Andromeda has had nine known black holes, but that number jumped to 35 in 2013. Astronomers have observed 26 new black holes in the galaxy, which is the number of black holes already found in a galaxy that is not ours. Most of these new black holes are about five to ten times the mass of our Sun. ( To know the recent studies regarding the number of black holes in the Andromeda Galaxy can be read here.)

4: Already confused with a nebula

A nebula is a huge cloud of gas, dust, hydrogen, helium and plasma, and it is where stars are born. Distant galaxies have often been confused with these massive clouds. In 1924, astronomer Edwin Hubble announced that the Andromeda spiral nebula was actually a galaxy and that the Milky Way was not the only galaxy in the universe.

5: It has a double core

 Andromeda-double-nucleus

Another interesting fact about the Andromeda Galaxy is that it contains a double nucleus. Both nuclei contain a few million densely compact stars, and are separated by only five light-years. The first nucleus is known as P1, while the second nucleus is known as P2. [ ListVerse ]

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Andromeda Galaxy

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