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ILikePluto
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Reged: 02/17/09

Fomalhaut is a Triple Star new
      #6120201 - 10/06/13 08:51 AM

It has a red dwarf companion 2.5 light-years away.

Full story at ScienceNOW.


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GlennLeDrew
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Reged: 06/18/08

Loc: Ottawa, Ontario, Canada
Re: Fomalhaut is a Triple Star new [Re: ILikePluto]
      #6120923 - 10/06/13 04:37 PM

Neat! Over 5-1/2 degrees distant on the sky. This star is quite weakly bound to Fomalhaut. At the tidal limit, a companion's orbital period would be roughly 100 million years; this star's period is calculated as being about 20 million years. At some point in the distant future there is a good change this red dwarf will become unbound.

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hm insulators
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Reged: 01/22/07

Re: Fomalhaut is a Triple Star [Re: GlennLeDrew]
      #6124885 - 10/08/13 12:58 PM

I was looking at Fomalhaut through the binoculars the other night at a star party.

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