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That means that M31 (the Andromeda Galaxy) is at a distance of about 2.5 million light-years, and that it takes the light 2.5 million years to get here. Light moves quickly, but not instantaneously.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoBecause that is how long it has taken the light to get here. Light is fast, but not endlessly fast. If it has to go a long way, it'll take a long time.
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Why is the light from Andromeda that reaches Earth 2.5 million years old?
The Andromeda galaxy is 2.5 million light years away, meaning that it takes 2.5 millions years to get here traveling at the speed of light.
What is Andromeda Galaxy?
The Andromeda Galaxy (also known as M31 and NGC 224) is a spiral galaxy 2.5 million light-years (0.77 megaparsecs) from Earth in the Andromeda constellation, and is 150,000 light-years (1.5 times larger than the Milky Way) in diameter, and contains 150 billion stars (150 percent of the Milky Way's stars). It emitted its light 2.5 million years ago, when the universe was nearly 14,000 million years old.
What is the Andromeda galaxy?
The Andromeda Galaxy (also known as M31 and NGC 224) is a spiral galaxy 2.5 million light-years (0.77 megaparsecs) from Earth in the Andromeda constellation, and is 150,000 light-years (1.5 times larger than the Milky Way) in diameter, and contains 150 billion stars (150 percent of the Milky Way's stars). It emitted its light 2.5 million years ago, when the universe was nearly 14,000 million years old.
What is the PGC 1669768 galaxy?
The PGC 1669768 galaxy is a barred spiral galaxy 1000 million light-years from Earth (redshift of 0.07) in the Andromeda constellation, and is 120,000 light-years in diameter (1.2 times larger than the Milky Way), and contains about 200 billion stars (twice the number of the Milky Way's stars). It emitted its light 1000 million years ago when the universe was nearly 13,000 million years old.
What is the NGC 891 galaxy?
The NGC 891 galaxy is a spiral galaxy 30 million light-years from Earth in the Andromeda constellation, and is 100,000 light-years in diameter (same size as the Milky Way), and contains about 100 billion stars (same number of stars as the Milky Way). It emitted its light 30 million years ago when the universe was nearly 14 billion years old.
If you where to send a man out of our solar system in a space probe to another galaxy would he die from the lack of sun?
No -you die from old age. The nearest galaxy is the Andromeda Galaxy and it's 2.2 million light years away - meaning if that man in a probe was traveling at the speed of light (currently impossible) it would take him 2.2 million years to get there. As you know, humans only live about 80 years.
What do you know about the Milky Way?
Our galaxy is a lens shaped barred spiral galaxy about 100,000 light years in diameter. At the core it is about 10,000 light years thick, but out by us it's justs 4000 light years wide (to quote a popular song). The galaxy contains roughly four hundred billion stars, and is a bit smaller than our sister galaxy, the Andromeda Galaxy. Our two galaxies along with about twenty smaller galaxies form our local group. We are a bit over two million light years from Andromeda, and our sun is about 30,000 light years from the Milky Way's galactic core. The core of our galaxy contains a massive black hole, perhaps 3 million solar masses. Our galaxy is also about as old as the rest of the universe, some 12 to 13 billion years. The universe itself, in comparison, is 13.7 billion years old.
How old is something 11.7 million light years?
Light years measure distance, not age. So this can't really be answered, like asking "How old is 11.7 kilometers?"
How old is Bray Head in Co Wicklow in Ireland?
It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.It is hard to be precise, but between 358 million years old and 415 million years old.
Where is the next galaxy?
The nearest large Galaxy is the Andromeda Galaxy or M31 (also Great Andromeda Nebula in old texts)It is a spiral galaxy, located about 2.5 million years from us.Unlike most galaxies, the Andromeda Galaxy is getting nearer to us and will eventually in a few billion years time "merge" with the Milky Way.See related link for more information
Why is the light that reaches earth 2.5 million year old?
Not all light that reaches the Earth is 2.5 million years old. Light produced from a star that is 2.5 million light years away reaches Earth in 2.5 million years. Light from the sun, for example, is only 8 minutes old. Light that is reflected from the surface of the moon takes about 1.28 seconds to reach Earth.
Approximately how old is the Earth 4.6 billion years old 3.8 billion years old 4.6 million years old 3.8 million years old?
Approximately how old is the Earth? 4.6 billion years old 3.8 billion years old 4.6 million years old 3.8 million years old
