Question

How many Star are there in observable universe??​

Answer 1

Answer:

In the end, it comes down to an estimate. In one calculation, the Milky Way has a mass of about 100 billion solar masses, so it is easiest to translate that to 100 billion stars. This accounts for the stars that would be bigger or smaller than our sun, and averages them out.

Answer 2

Explanation:

One hundred billion (100,000,000,000) stars in our own Milky Way galaxy. Hence, 10²² to 10²⁴ stars in the observable Universe.