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Thread: ever wonder about stellar orbits in globular clusters?

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    Default ever wonder about stellar orbits in globular clusters?



    Featured Image: Globular Cluster Orbits

    or rather the orbits in the MW of globulars. i imagine that stellar orbits in globs are similarly messy.

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    Default Re: ever wonder about stellar orbits in globular clusters?

    I often wonder how many star collisions occur in globular clusters since they seem so tightly packed.
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    Default Re: ever wonder about stellar orbits in globular clusters?

    One has to wonder if there will ever be a night side to a planet that is around one of the inner stars in a GC?
    You would probably have 24 hours daylight!
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    Default Re: ever wonder about stellar orbits in globular clusters?

    Now I have the urge to play with a Spirograph...


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    Default Re: ever wonder about stellar orbits in globular clusters?

    Thanks n_FA. I am confused by this statement, "We find distances with an average uncertainty of 0.15 mag and absolute ages ranging from 10.8 to 13.6 Gyr with an average uncertainty of 1.6 Gyr". If Gyr is a billion years, are they saying that some of the clusters are from near the beginning of the universe?
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    Default Re: ever wonder about stellar orbits in globular clusters?

    Quote Originally Posted by michael131313 View Post
    Thanks n_FA. I am confused by this statement, "We find distances with an average uncertainty of 0.15 mag and absolute ages ranging from 10.8 to 13.6 Gyr with an average uncertainty of 1.6 Gyr". If Gyr is a billion years, are they saying that some of the clusters are from near the beginning of the universe?
    Exactly so but don't forget the uncertainty in magnitude.
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