Anonymous
Anonymous asked in Science & MathematicsAstronomy & Space · 3 years ago

Can a star closer than 10 parsecs and a star farther than 10 parsecs have the same absolute magnitude?

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  • Argent
    Lv 7
    3 years ago

    Easily. Many stars, at many different distances, have the same absolute magnitude. The *apparent* magnitude, now, is a function of distance.

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  • 3 years ago

    Only stars located exactly at 10 parsecs (parallax"= 0.1) have the same absolute magnitude (as the apparent magnitude). Nearer, the star has more absolute magnitude (more negative number or towards negative) & vice versa. Such stars (with parallax"/Apparent/Absolute) are

    Zavijah (β Velorum) ... 0.104 3.61 3.627

    Porrima (γ Velorum) ... 0.099 3.65 3.646

    1437 Centauri ... 0.099 4.91 4.906

    Source(s): my notes
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  • 3 years ago

    Of course.

    Absolute magnitude has nothing to do with distance.

    Cheers!

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  • Yes.

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