GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A diagonal area on an H-R diagram that includes more than 90 percent of all stars.
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main sequence
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apparent brightness
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absolute brightness
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Hertzsprung-Russell diagram
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Explanation:
Detailed explanation-1: -The Basic H-R Diagram The stars which lie along this nearly straight diagonal line are known as main sequence stars. The main sequence line accounts for about 80% to 90% of the total stellar population.
Detailed explanation-2: -Typical stars like our Sun are Main Sequence stars. Since stars spend about 90% of their lives in the Main Sequence phase, powered by nuclear fusion of hydrogen in their cores, this is the most densely populated region of the HR diagram.
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