Questions

What is the designation for the Andromeda Galaxy? – M31 or NGC 224

What is the type of Andromeda Galaxy? – Spiral

How far is andromeda galaxy from the Milky Way? – 2.54 million light years

What is the estimated number of starts in the Andromeda Galaxy? – 1 trillion

What is the estimated age of the Andromeda Galaxy? – 4.5 billion years

 

Facts

The Andromeda Galaxy (M31) is the closest large galaxy to the Milky Way and is one of a few galaxies that can be seen unaided from the Earth.

The Andromeda Galaxy is approaching the Milky Way at approximately 100 to 140 kilometers per second.

The spiral arms of the Andromeda Galaxy are being distorted by gravitational interactions with two companion galaxies, M32 and M110.The Andromeda Galaxy has at least two spiral arms, plus a ring of dust that may have come from the smaller galaxy M32. Astronomers think that it may have interacted more closely with Andromeda several hundred million years

The Andromeda Galaxy has at least two spiral arms, plus a ring of dust that may have come from the smaller galaxy M32. Astronomers think that it may have interacted more closely with Andromeda several hundred million years ago when M32 plunged through the heart of its larger neighbor.

There are at least 450 globular clusters orbiting in and around the Andromeda Galaxy. Some of them are among the most densely populated globulars ever seen.

The Andromeda Galaxy is the most distant object that can be spotted with the naked eye.

The Andromeda Galaxy is the largest galaxy of what is called the Local Group – a collection of more than 54 galaxies including the Milky Way, the Triangulum galaxy and many smaller dwarf galaxies.

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