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Group 1 is shown in Blue. This group goes across the HR Plot in a diagonal line meaning that the stars get brighter and hotter at the same time. You will notice that the sun is also in Group 1. Describe
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Group 1 is shown in Blue. This group goes across the HR Plot in a diagonal line meaning that the stars get brighter and hotter at the same time. You will notice that the sun is also in Group 1. Describe the stage of life the stars at in Group 1?

PLEASE HELPPPP

User Kolaworld
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Stars in Group 1, including our Sun, are in the main sequence stage of their life cycle. This is the longest phase where stars are fusing hydrogen into helium in their cores, which provides the energy they radiate as light and heat.
User Tehvan
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