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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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∙ 12y ago
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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.
In what constellation is a galaxy in?
The Andromeda Constellation has the Andromeda Galaxy within it.
When was The Andromeda Galaxy created?
The Andromeda Galaxy was created in 1992.
How bright is the Andromeda Galaxy?
The Andromeda Galaxy has an apparent magnitude of +3.44
What type of galaxy is the Andromeda galaxy?
The Andromeda Galaxy is a spiral barred galaxy, similar to our own galaxy, the Milky Way.
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.
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).
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.
In what constellation is a galaxy in?
The Andromeda Constellation has the Andromeda Galaxy within it.
When was The Andromeda Galaxy created?
The Andromeda Galaxy was created in 1992.
How big is the black hole in Andromeda?
The black hole at the centre of the Andromeda galaxy is estimated to be 140 million Solar-masses.
How many pages does The Andromeda Galaxy have?
The Andromeda Galaxy has 358 pages.
What is shape of the galaxy Andromeda?
M31 in Andromeda is a classic spiral galaxy.
What is the shape on the galaxy Andromeda?
Andromeda is a spiral galaxy, similar to our own.
