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approximately how long until Sirius A starts expanding into a Red Giant?

3 Answers

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  • Sharon
    Lv 6
    2 years ago

    At 2.2 solar masses Sirius A should start to evolve into a Red Giant in about 200-240 million years

  • 2 years ago

    Sirius A is just another star like our sun just double its mass.

    At some point some several hundred billion years from now, it will become a red giant like Sol

  • Anonymous
    2 years ago

    Millions of years. By then, humans will have evolved into another species... or become extinct.

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