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That's the approximate radius of a neutron star, a.k.a. a pulsar.

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Q: Which star has a radius of 10 km?
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How many times larger is the sun than a star that has 0.1 solar radius?

The sun has a radius of approximately 696,340 kilometers, while a star with 0.1 solar radius would have a radius of 69,634 kilometers. To calculate how many times larger the sun is, we divide the sun's radius by the smaller star's radius: 696,340 km / 69,634 km = 10. Therefore, the sun is 10 times larger than a star with 0.1 solar radius.


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