Tag Archives: barycentres

Is It Two Pair Or Four Of A Kind?

Lord Smurf asks

I can just about get my head around a planet orbiting two suns, but this: http://www.bbc.co.uk/news/science-environment-19950923 confuses me. I notice that it says two of the suns are ‘circling’ the planet, rather than ‘orbiting’. Is there a difference? I always think of suns as the giants of solar system so I don’t understand how they can orbit a planet, rather than the other way round. How does this system actually work because all the articles are telling me how amazing this is but none of them actually say how the damn thing works.

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Barry’s Guide To Barycentres.

Barycentre, barycentre. It’s the kind of word that sounds like it should be easy to pun, but really isn’t.

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