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Andromeda Galaxy
Andromeda Galaxy is the nearest galaxy to Milky Way Galaxy. Although no traces of life have been found, most of the stars and planets known to us are found here.
196 Questions
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.
How many moons Andromeda galaxy have?
It is not known. The Andromeda Galaxy contains about a trillion stars, many of which certainly have planets, though we don't know how many. Many of the planets likely have moons. All told, there are likely several hundred billion to several trillion moons in the Andromeda Galaxy.
Does the Andromeda galaxy have a sun?
The Andromeda Galaxy does not orbit a sun as a planet does; it is an immense cloud consisting of as many as 1 trillion stars, each of which can be considered a sun.
Why can't you be certain that the Andromeda galaxy exists today?
The basic premise is that the Andromeda Galaxy is 2.5 million light years away, so light from it takes 2.5 million years to reach it. Therefore we see it not as it is now but as it was 2.5 million years ago. The idea that it might no longer exist is rather absurd. A few million years may seem long to us but it is a very short time in terms of how galaxies evolve. It is in all likelihood impossible for a galaxy to experience any significant change in such a relatively short period of time.
How far away is earth from the Andromeda galaxy in kilometers in scientific notation?
The Great Galaxy in Andromeda (also known as the Andromeda Galaxy or M31) is about 2.5 million light years from Earth. When we look at this galaxy today, we see light that has been traveling through space for 2.5 million years; i.e. when we look at the Andromeda Galaxy, we are seeing it as it was about 2.5 million years ago! Think about this, we are looking back in time.
1 light year is the distance that light travels in 1 year. Speed of light is 300,000 kilometers/second, find the distance that light travels from the Andromeda Galaxy to Earth in kilometers and express it in scientific notation.
Is Andromeda galaxy bigger than a galaxy cluster?
A galaxy cluster consists of several galaxy groups, each of which in turn contains several galaxies. So no; a galaxy cluster is MUCH bigger than any individual galaxy.
Does the Andromeda galaxy rotate?
Yes, it does, the rotation period can be calculated using 21cm radio waves and the Doppler principle.
Answer:
All galaxies rotate as do all planets around stars and just about everything else.
It is the centripetal force of rotation that prevents objects from falling together due to the attractive force of gravity.
If an isolated mass of stars or dust or gas were assembled in space and the contents had no rotational motion, the whole mass would begin to accelerate towards its own center due to gravity. So, while such clumps of matter can exist, they have all presumably condensed into planets or star or black holes.
How will the earth look like 200 million years from now?
It won't be here ! Scientists estimate our sun has about 6,000 years left until it balloons into a red-giant, before exploding into a supernova - which will wipe out all but the outer-most planets. Additionally, the galaxy Andromeda is on a collision course with our Milky Way. This collision will all-but destroy all traces of our solar system.
How many kilometers is it from Earth to the Andromeda Galaxy?
That would be an immense number. Light, itself, takes about 2.54 million years to go from Andromeda to Earth. (Or vice-versa).
The number of kilometers is about 23 quintillion.
Does the speed of light allow the Andromeda Galaxy to emit a blue shift?
There is some blueshift in the Andromeda galaxy as it is moving toward us. The speed of the Andromeda Galaxy relative to the sun is about 300 kilometers per second or about 0.1% the speed of light. The blueshift would be detectable by instruments but not to the human eye.
Not everything is moving away from us. The farther an object is away from us, the greater the affect of the expansion. At the distances within galaxy clusters the effects of expanding space are rather small. It is only galaxies in other clusters that are moving away from us. In terms of intergalactic space, the Andromeda galaxy is very close to us, so any effects of cosmic expansion are negligible. At such a distance, the gravitational attraction between the two galaxies has a much stronger influence.
Will the Milky Way galaxy be combined with the Andromeda galaxy in about 450 billion years?
According to the best investigations and research available,
a lot sooner than that.
Why do astronomers study the Andromeda galaxy?
Astronomers study the Andromeda galaxy to learn more about how galaxies form and evolve, to understand the structure and composition of other galaxies beyond our own Milky Way, and to potentially gain insights into the future fate of our own galaxy.
Are there planets that life can be on in the Andromeda Galaxy?
The Andromeda Galaxy is the largest galaxy in the local cluster. This means that it contains more stars than the Milky Way and more stars mean more planets. Considering that scientist estimate that there could be thousands on planets with intelligent life in our own galaxy it would be logical to assume the same about the Andromeda Galaxy.
What are the planets in Andromeda galaxy?
The Andromeda galaxy is a separate galaxy from our Milky Way and has its own set of planets. However, due to the vast distance between our galaxies, we are currently unable to observe individual planets in the Andromeda galaxy.
How far is the Andromeda galaxy away from the milky way?
The Andromeda galaxy is about 2.5 million light-years away from the Milky Way galaxy. It is the closest spiral galaxy to our own.
