Home > Astronomy > Scale of Earth, Sun, Galaxy, and Universe

How many stars are there in the universe?

Answer 1

There are 200 billion stars in our Galaxy milky way..

We estimate that there are 200 billion galaxies, each with 200 billion stars, because our understanding of the universe is incomplete. Recent estimates of the number of galaxies in the observable universe range from 200 billion (2×1011) to 2 trillion (2×1012) or more, with more stars than there are sand grains on Earth. Part of the answer from Wikipedia.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Hunter Arthur

The exact number of stars in the universe is uncertain, but estimates suggest there are around 100 billion galaxies, each containing an average of 100 billion stars.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.