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How many stars are there in space?
Yahoo • • science
Key Points:
- On a clear night, about 6,000 stars are visible to the naked eye, but this is only a tiny fraction of the stars in the universe, most of which are too distant to see.
- Astronomers estimate there are approximately 2 trillion galaxies in the universe, based on detailed sky surveys and counting galaxies in small sky sections.
- The Milky Way galaxy contains about 100 billion stars, a figure derived by measuring the color and brightness of starlight.
- Multiplying the estimated 100 billion stars per galaxy by 2 trillion galaxies results in an estimated total of around 200 sextillion (200 billion trillion) stars in the universe.
- This immense number highlights the vastness of the cosmos and invites curiosity about the countless worlds orbiting these stars.
