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How big are stars?

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How big are stars? Our own Sun is quite a small star, even though it measures 1,392,530 km across, which is 109 times more than the Earth's diameter. If the Sun were the size of a football, the Earth would be only 2 mm across. Some stars are known as supergiant. The star Antares, for example, is 700 times bigger than the Sun.

There is a star in the constellation of Auriga that may be 3,000 million km in diameter, or 4,000 times bigger than our Sun.

The neutron star that remains after the explosion of a supernova may be only 20 km in diameter, but of enormous mass. If it weighs more than two or three times that of our Sun, it begins to collapse into a black hole.


Tags: sun, neutron, earth



Category: Astrology  - ( Astrology Archive)

Date Added: 09 December '11


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