About 90 percent of stars on the Hertzsprung-Russell (H-R) diagram are _____.

Biology

2 answers:

Volgvan3 years ago

8 0

main sequence stars

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Step2247 [10]3 years ago

6 0

Answer: main-sequence stars

Explanation:

Hertzsprung-Russell (H-R) diagram shows the relation between temperature of stars and their luminosity.

It shows the position of stars in its life-cycle. Star takes birth in nebula and moves to main-sequence. When the fuel finishes, it forms red-giant or super-giant depending on the mass of the star. The red-giant moves on to become white dwarf and super-giant goes supernova and forms neutron star or black-hole.

Most of stars in the H-R diagram are main-sequence stars as majority portion of their life-time stars spend sin main-sequence.

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