SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is a medium sized star that is often average in temperature?
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main-sequence
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red giant
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white dwarf
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blue pulsar
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Explanation:
Detailed explanation-1: -Core temperatures in these stars are 18 million K or greater.
Detailed explanation-2: -A Class M star is the type that consists of some of the dimmest of the main sequence stars. Such main sequence Class M stars are known as red dwarfs, though the category can also include very late Class K stars that may be nearly convective and early Class L stars able to fuse hydrogen.
Detailed explanation-3: -About 90 percent of the stars in the universe, including the sun, are main sequence stars. These stars can range from about a tenth of the mass of the sun to up to 200 times as massive.
Detailed explanation-4: -Notable examples of main sequence stars are the Sun, Sirius A, Achernar, Alpha Centauri, and Altair.
There is 1 question to complete.