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The relationship that is observed between temperature and size of main sequence stars is that as these star's size increases, the temperature decreases.

What is a main sequence stars?

These are group of stars that forms a band comprising 90% of stellar types and includes stars representative of the stages that a normal star passes through during the majority of its lifetime.

The characteristics of a main sequence star includes:

  • have common source of their energy
  • undergoing fusion of hydrogen into helium within their cores.

Read more about main sequence stars

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