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The Andromeda Galaxy or M31 has been estimated to be 220,000 light years across. Our Galaxy, The Milky Way, is about 100,000 light years across.
See link for more information.
The latest estimates for the diameter is about 43,000 ly across.
This is based on a 3.18 degree angle in the sky and a distance of 2.54 Mly.
A big caveat here that this is only the visible part of the galaxy. Since a galaxy must be made up of a substantial amount of dark matter the true size of the galaxy cant be determined at the moment.
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Why was it named the Andromeda galaxy?
Because the Andromeda Galaxy or M31 is a major galaxy and is found in the constellation Andromeda.
When was The Andromeda Galaxy created?
The Andromeda Galaxy was created in 1992.
Why was the Andromeda galaxy named after Andromeda?
The Andromeda galaxy was named after the princess Andromeda from Greek mythology. The constellation Andromeda, in which the galaxy is found, is also named after her. It was named as such because of its proximity to the constellation and its association with the myth.
Are there other planets Andromeda galaxy?
We expect the Andromeda galaxy to be just like our own Milky Way galaxy. We can see stars (suns) in the Andromeda Galaxy and just as stars have planets orbiting them in our galaxy, we believe that there must be planets also orbiting stars in the Andromeda galaxy.
What is the galaxy next to the Milky Way called?
The nearest "big" galaxy after the Milky Way is called the Andromeda galaxy, because with our line of sight from earth, it appears to be in the the constellation Andromeda. It is 2.5 million light years away.
How big from one side to the other is Andromeda galaxy?
The Andromeda Galaxy is roughly 100,000 light years in diameter.
Is the Andromeda galaxy an elliptical galaxy?
The Andromeda Galaxy is a spiral galaxy.
Why was it named the Andromeda galaxy?
Because the Andromeda Galaxy or M31 is a major galaxy and is found in the constellation Andromeda.
Is Andromeda a spiral galaxy?
Yes, the Andromeda Galaxy is a spiral.
What is the ISBN of The Andromeda Galaxy?
The ISBN of The Andromeda Galaxy is 0792316541.
When was The Andromeda Galaxy created?
The Andromeda Galaxy was created in 1992.
What is the shape on the galaxy Andromeda?
Andromeda is a spiral galaxy, similar to our own.
What is shape of the galaxy Andromeda?
M31 in Andromeda is a classic spiral galaxy.
How many pages does The Andromeda Galaxy have?
The Andromeda Galaxy has 358 pages.
What is the shape of Andromeda?
The Andromeda Galaxy is a spiral galaxy, just like our own galaxy (the Milky Way).The Andromeda Galaxy is a spiral galaxy, just like our own galaxy (the Milky Way).The Andromeda Galaxy is a spiral galaxy, just like our own galaxy (the Milky Way).The Andromeda Galaxy is a spiral galaxy, just like our own galaxy (the Milky Way).
Which galaxy is 2.2 million light years away?
The Andromeda Galaxy (M31 galaxy).
Why was the Andromeda galaxy named after Andromeda?
The Andromeda galaxy was named after the princess Andromeda from Greek mythology. The constellation Andromeda, in which the galaxy is found, is also named after her. It was named as such because of its proximity to the constellation and its association with the myth.
