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Last Post 3/21/2011 8:34 PM by  Paulett Liewer
sunspots on other stars
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3/20/2011 4:53 PM

    Marie S

    Have you been able to observe other stars to show sunspots on them?

    Tags: sunspots, Other stars

    Paulett Liewer



    Basic Member


    Posts:113
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    3/21/2011 8:34 PM

    Hi Marie

    Yes, we have been able to see "sunspots" on a few other stars.

    In addition, there are many stars who's brightness changes on a regular basis; we think this is because the star has starspots. Sunspots and starspots rotate with the Sun or star and make the brightness go up and down. So this is also used to determine the rotation rate of distant stars.

    NASA's Kepler mission is finding lots of new stars with varying brightness.

    Paulett

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