Number The Stars Annemarie Johansen
How Big Is a Star?
Stars vary in size from less than 8 percent of the size of the sunday to those with diameters of more than 1,800 times that of the sun. In terms of mass, stars must have enough mass to back up the nuclear chain reaction that takes place in the core of a star, which is almost x percent of the sun'southward mass. There is also a limit to how massive starts tin can grow, and scientists doubtable that the limit is about 150 times the mass of the sun.
Scientists have simply measured the size of 2 stars directly: the sun and a relatively close and large star called Betelgeuse. All other stars are measured through the combination of observing their perceived brightness, distance and temperature. The sun's diameter is about 864,000 miles, and it weighs more than 300,000 times the mass of the Earth. The sun is a fairly boilerplate-sized star. By comparison, Betelgeuse is about 700 times the size of the sunday and much brighter.
Stars can change size as they age. For instance, the sun will increment to almost 300 times its current size when information technology becomes a red giant. Alternatively, when large stars collapse, they sometimes form neutron stars. Some of the near dense items in the universe, neutron stars are but virtually 12 miles in diameter, merely a unmarried teaspoon of neutron star fabric would weigh billions of tons.
Number The Stars Annemarie Johansen,
Source: https://www.reference.com/science/big-star-4a36079cd1078908?utm_content=params%3Ao%3D740005%26ad%3DdirN%26qo%3DserpIndex&ueid=7ed6c11a-8fc2-4c1a-aebb-af35e5be60b7
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