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How many stars and galaxies are there in the universe?

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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 universe range from about 170 billion to one trillion. One trillion is one thousand millions. Estimates of the number of stars range from around 70 sextillion to 300 sextillion. Seventy sextillion is 7 followed by 22 zeros. 300 sextillion is 3 followed by 23 zeros. Some estimate as high as 10 to the power 24, which is one followed by 24 zeros. You might think that 22, 23 and 24 are small numbers here, until you begin to consider that every single one of them represents a power of ten. The number is far beyond anything that any human mind can grasp on anything close to a practical level.
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How many galaxies are in the universe?

Wikipedia reports "probably more than 170 billion" galaxies in the universe. The number could easily exceed 200 billion.

How many galaxies are there in the universe?

It has been suggested that "the total number of stars in the universe is greater than all the grains of sand on all the beaches on Earth." There may be more stars, as there a

How many stars are there in the galaxy?

A typical galaxy may have anywhere between a few million  (106) stars, and over a trillion (1012)  stars. Our own Milky Way is estimated to have between 200 and 400  billio

How many stars do the smallest galaxies have?

  Generally the boundary between "cluster" and "galaxy" is considered to be somewhere in the vicinity of a million stars.

How many stars are in a 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

How many galaxies in the universe?

Astronomer and science popularizer Carl Sagan used to say that there were "BIL-lions and BIL-lions" of galaxies. Now, thanks to the Hubble Space Telescope's "Deep Field" obser

How many stars does a spiral galaxy have?

Sizes vary, of course. A typical size is a few hundred billion  (10^11) stars; some of the larger ones can have more than 10^12  stars.    Our galaxy is a barred spir

How many galaxies are in the whole universe?

There are probably more than 100 billion (1011) galaxies in the  observable universe at distances up to 13 billion light years.  That's only in the observable Universe, the

How many known galaxies are in the universe?

There are probably more than 170 billion galaxies in the observable  universe.    There are a lot of galaxies known in the universe. The number is  uncertain. Scienti

How many galaxies in the visible universe?

Visible with the naked eye - about 8 to 9 depending on viewing  conditions. (Not all from the same viewing spot)    With estimation, anywhere between 100 and 300 billi