# How many stars are in the universe?

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Based on current estimates, there are between 200 - 400 billion stars in our galaxy (The Milky Way). There are possibly 100 billion galaxies in the Universe. So taking the average of our galaxy, gives approximately 3 x 1024 stars. So about 3 septillion. This has been equated to the same number of grains of sand that are on Earth.

One source (BBC) stated that there are about 1,000 stars to every grain of sand on Earth!! There are an estimated 100 to 200 billion galaxies.

So taking a conservative number of 100 billion stars per galaxy gives an approximate total of 10,000,000,000,000,000,000,000 stars. (Which is 10 sextillion)

The newest estimates gained by the Hubble space telescope places the estimate of 500 billion Galaxies each with about 300 billion stars for each galaxy.
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# How many stars are there in the universe?

There are over 10 billion trillion stars (100 billion+ per galaxy)in the universe.

# How many stars there are in universe?

The most recent estimates place the number of stars in the observable universe at around 10 23. That's a 1 with twenty-three zeros after it. More precisely, that would be 100

# How many stars are their in the universe?

In the observable universe there are about 80 to 100 billion galaxies with varying numbers of stars in each. A rough mean average for the number of stars per galaxy is 400 bil

# How many giant stars are there in the universe?

Nobody can really tell. There are an estimated 100,000,000,000,000,000,000 (100 quintrillion) probably more. Of those it's estimated to be about 3,000,000,000,000,000 (3 th

# How many star and galaxy in your universe?

The Universe is a term used to explain the size of everything there is no way to know how big or of what content it is.

# How many stars are there in the observable universe?

Answer 1: Hundreds of billions of billions. Updated: As of 2009, it was estimated to be around 10 23 stars in the observable universe. However, it was recently disco

# How many galaxies in this universes and how many stars?

See related questions:

unkown

# How many different stars are there in the universe?

We can't be sure, and we don't even have any good guesses. The current best guess was just recently revised by a factor of three, tripling the number of stars in the universe

# How many stars are in this universe?

What a great question! The Milky Way galaxy, of which the Sun is a part, has approximately one hundred billion stars. Keep in mind that stars and being created and destroyed a

# How many stars on the universe?

Carl Sagan used to say, "there are 100 billion galaxies each with 100 billion suns." 100 billion x 100 billion = 10 22 Although today, many scientists estimate that numb

# How does scientist measure how many stars in the universe?

They make reasonable estimates, based on the number of galaxies, and the size of a typical galaxy.

# How do you know how many stars and galaxies in the universe?

We guess. Really. There's no way to actually COUNT the stars in the Milky Way; the small ones are too small and dim to see if they are more than a few dozen light years away

# How many star systems are there in the universe?

27,000,000,000,000,000,000,000.

# How many stars and galaxies are there in the universe?

The answer has to be estimated; for many reasons no one can ever know the exact numbers, whatever that might mean in this context. Estimates of the number of galaxies in the u

# How many stars existed on the beginning of the Universe?

If the big-bang theory is true, the stars, planets, and other universal bodies were progressively formed, so there were much less stars than we have today, and the fomation of

# How many stars are in outer space and the universe?

There is no real count because new stars are created from time to time. There are BILLIONS AND BILLIONS (as Carl Sagan might have said). There are billions of stars in