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    Lifetime of Stars

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    1.Use this figure to find the main sequence lifetime of a 5 M star.

    2. Use this figure to find the sunspot number at the highest sunspot maximum of the nineteenth century.

    Please see attached for all figures.

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    Solution Preview

    From 5 on x-axis draw a line parallel to y axis, where this line meets the graph, ...

    Solution Summary

    The following posting helps with astrophysics problems.