Question

How many star's are there in observable universe​

Answer 1

Answer:

The number of stars in a galaxy varies, but assuming an average of 100 billion stars per galaxy means that there are about 1,000,000,000,000,000,000,000 (that's 1 billion trillion) stars in the observable universe!

Explanation:

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Answer 2

Answer:

1,000,000,000,000,000,000,000 (that's 1 billion trillion)

Explanation:

The number of stars in a galaxy varies, but assuming an average of 100 billion stars per galaxy means that there are about 1,000,000,000,000,000,000,000 (that's 1 billion trillion) stars in the observable universe!