Yes. Some dwarf galaxies do contain 1 billion stars.
The average number of stars in a dwarf galaxy is several billion.
The average number of stars in a dwarf galaxy since it contains a few million to several billion stars with as few as ten million (107) stars.
Yes. An average galaxy contains at least 100 billion stars.
Since MDC2010 1721 is a dwarf galaxy 13.1 billion light years from us, it will take 13.1 billion years for the message to reach its intended designation (and an additional 13.1 billion years for any reply from an alien civilization).
The estimated number of galaxy mergers, given that there are 100 billion galaxies in the universe, is 100 billion.
The estimated number of galaxy groups, given that there are 100 billion galaxies in the universe, is 100 to 200 billion.
Galaxies vary a lot in size, from dwarf galaxies that have a few hundred million stars, to huge galaxies with a hundred trillion stars. (That's a ratio of about 1 to a million.)Our own galaxy has somewhere between 200 and 400 billion stars. Actually, most galaxies are quite a bit smaller than our own galaxy, since dwarf galaxies occur in larger numbers.
There are approximately 7 trillion dwarf galaxies in the universe.
You might as well say, closest to the Earth, or to the Solar System - since distances within the Solar System are insignificant compared to the distances to other star systems.The closest star system is Toliman, also known as Rigil Kentaurus, or Alpha Centauri.The closest known galaxy is a dwarf galaxy, the Canis Maior Dwarf Galaxy - a satellite of our galaxy.You might as well say, closest to the Earth, or to the Solar System - since distances within the Solar System are insignificant compared to the distances to other star systems.The closest star system is Toliman, also known as Rigil Kentaurus, or Alpha Centauri.The closest known galaxy is a dwarf galaxy, the Canis Maior Dwarf Galaxy - a satellite of our galaxy.You might as well say, closest to the Earth, or to the Solar System - since distances within the Solar System are insignificant compared to the distances to other star systems.The closest star system is Toliman, also known as Rigil Kentaurus, or Alpha Centauri.The closest known galaxy is a dwarf galaxy, the Canis Maior Dwarf Galaxy - a satellite of our galaxy.You might as well say, closest to the Earth, or to the Solar System - since distances within the Solar System are insignificant compared to the distances to other star systems.The closest star system is Toliman, also known as Rigil Kentaurus, or Alpha Centauri.The closest known galaxy is a dwarf galaxy, the Canis Maior Dwarf Galaxy - a satellite of our galaxy.
The number of stars in a galaxy depends on its size. The Milky Way Galaxy has between 200 and 400 billion stars. Dwarf galaxies may contain as few as 10 million stars, while the largest galaxies consist of more than a trillion. This is usually due to the merging of smaller galaxies into one big galaxy. There are an estimated 100-300 billion galaxies in the observable universe.
Since T2003 767 is an elliptical galaxy 12.5 billion light years from us, it will take 12.5 billion years for the message to reach its intended designation (and an additional 12.5 billion years for any reply from an alien civilization).
Since T2003 1423 is a spiral galaxy 12.5 billion light years from us, it will take 12.5 billion years for the message to reach its intended designation (and an additional 12.5 billion years for any reply from an alien civilization).