How many stars does the human race know of?

Answer 1

There is only one star that has ever been observed in our solar system, but some

scientists have theorized that there is a second star out beyond the Oort Cloud

that only comes close enough to be observed every 32 million years. That length

of time between observational periods would explain why a human has never

proven its existence.

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On the other hand . . .

-- About 2,300 stars are bright enough to be seen in the night sky by the unaided

human eye.

-- Enough individual stars have been observed and catalogued within the Milky Way

Galaxy with modern optical and photographic aid to estimate that the total number

of them in our local galaxy is between 200 to 400 billion stars.

-- Two satellite galaxies of the Milky Way and one completely independent galaxy

are near enough and bright enough to be seen in the night sky by the unaided

human eye.

-- Enough individual galaxies have been observed and catalogued with miodern

optical and photographic aid to estimate that the total number of galaxies in our

universe exceeds 100 billion galaxies.

For a total count of stars, simply do the math.