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Thread: Looking for a star's name

  1. #1
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    Default Looking for a star's name



    Hi,

    a few months ago I watched a video about a star which I believe to be a red giant. The problem with this star was that its diameter was hard to calculate for centuries because it seemed to shrink and expand.

    The solution to this was that this star had a heavy spot that was constantly travelling through the star and then created a hump before getting sucked right back in and starting the journey to the other side all over again.

    I tried to find the video again and google it, but looking for stars with humps on the internet leads to Hollywood, not the outer space.

    I have a name in mind but when I looked it up it didn't mention this particular phenomenon. I also distinctly remember that the start had another name before its modern one.

    Anyone any idea what star this might be?

    Thank you. :-)

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    Default Re: Looking for a star's name

    First off, welcome to the forum.

    Is this the story and star you aren't remembering?
    https://www.sciencedaily.com/release...1220131710.htm

    Cheers,
    JT
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    Default Re: Looking for a star's name

    Thanks for the welcome but unfortunately not. The effect was more like you have a water balloon with a tennis ball inside it. The ball would get to one side, stretch the surface quite a bit but then be forced back in by gravitational forces and then try it on the other side.

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    Default Re: Looking for a star's name

    Welcome to the forums DJ Doena, sorry that I cannot help with the question though
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    Default Re: Looking for a star's name

    Hello DJ! You've perked my curiousity. Hopefully our resident astrophysicist n-FA will see this and respond.

    The closest object that comes to mind are the Thorne-Żytkow objects (TŻOs) which are hybrids of red supergiant and neutron stars. Theoretically they have a neutron star at the core, but I don't recall if it moves from the center after it has been captured and spirals into the center: Strange Red Supergiant-Neutron Star Object Discovered (Today's Most Popular) - The Daily Galaxy --Great Discoveries Channel.

    I'll keep searching!!

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    Default Re: Looking for a star's name

    Sorry, couldn't find anything that matched on Google. I'm sure someone will crack the case, though.
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