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How long would it take if astronomers made the observation of at least 100 billion galaxies over the entire sky?
I don't think we can see 100 billion galaxies from our solar system, so it would
not be possible to count that many.
In any case, assuming it were possible to find, identify, and make a record
of one galaxy every second, then to gather 100 billion of them would take
something like 3,170 years . . . roughly the length of time that has elapsed
since the Israelites' Exodus from Egypt.
What else can I help you with?
How do you do all the redshifts on the 100 billion galaxies in the universe?
You don't. That's way too much. You just get the redshift of a sample of galaxies. As a clarification, the current estimate is about 170 billion galaxies - and that refers to the "observable Universe". The entire Universe is expected to be much larger than that (and have many more galaxies), but those can never be observed.
How many years will the Hubble Space Telescope observe over the entire sky of 100 billion galaxies since the Hubble Ultra Deep Field is roughly one ten-millionth of the sky?
It would take at least 1,000,000 years for the Hubble Space Telescope to observe over the entire sky of 100 billion galaxies in the universe.
How many galaxies can fit into a universe?
It is estimated that there are about 100 billion galaxies in the observable universe. However, the total number of galaxies in the entire universe could be much larger and currently unknown. The universe is vast and constantly expanding, so the exact number of galaxies it can hold is difficult to determine.
What is the estimated number of galaxies in the universe?
The observable Universe is estimated to have around 1011 (a hundred billion) galaxies. The entire Universe is much bigger than that, but it isn't known how much bigger. Perhaps it is infinite, in which case it might have an infinite number of galaxies.
How many galaxies are there so far?
See "related links" for a list of some important ones. The Hubble Space Telescope alone has observed thousands, and that was just by looking at a very small patch of the sky. There are actually millions that could be observed if we had time to do it. In fact, astronomers calculate that there are hundreds of billions of galaxies. In theory many of them could be observed and the number we can see will increase as our technology improves.
How many galaxies can we see in the observable universe?
Oh, what a lovely question! In the vast observable universe, scientists estimate that there are about 100-200 billion galaxies for us to see. Just imagine all those galaxies out there, putting on a cosmic masterpiece for us to admire. How delightful!
How many stars and how many galaxies have been catalogued?
There are a number of ways to count these - based on actual catalogs of the observed universe, based on estimates of the observed universe and based on estimates of the entire universe. The actual catalogs (there are numerous ones) have name around 10,000 galaxies. The best quantified amount is the estimate of the observed universe which according to the National Geographic Encyclopedia of Space contains 125 billion. Estimates of the entire universe have gone as far as 300-500 billion.
How much weather on galaxies?
The term "weather" makes more sense for planets, than for entire galaxies.
How many galaxy's is there?
There are an estimated 1011 galaxies in the observable Universe. The entire Universe is much bigger than the observable Universe. It may be infinitely bigger, but it is not currently known whether this is the case.
How many galaxies are there in all?
Astronomers now estimate that the observable universe contains anywhere between 100 and 300 billion galaxies. However, if spacetime is flat on large scales (as it seems to be), the universe is infinite in size and contains an infinite number of galaxies in total - they are just so far away that there light has not had time to reach us since the beginning of the universe. In fact, because the universe is expanding, we will never see most of these galaxies ever!billionsThe answer to your question is unknown. The universe is infinite containing billions and billions of galaxies as it expands.
Why couldn't early astronomers tell the difference between single stars and the entire galaxies when the looked at the night sky?
Unless you have a extremely powerful telescope, a galaxy and a star look almost the same.
What methods did astronomers use to study the entire surface of the moon?
Orbiting satellites.
