Planets around Alpha Centauri

  • #1
An article about the likely magnitudes and feasibility of terrestrial sized rocky planets orbiting in the habitable zones in the Alpha Centauri system:

(link removed)


AA
http://www.publishedauthors.net/aa_spaceagent/
 
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Answers and Replies

  • #2
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Are you trying to sell that book here or something? Looks like science fiction to me.
 
  • #3
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But didn't the Robinsons already explore that area of space?
 
  • #4
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Alpha Centauri is a trinary system. I dought you'll find any hospitible worlds there. The orbits are just to unstable.
 
  • #5
Janus
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hypatia said:
But didn't the Robinsons already explore that area of space?

No, that's where they were headed, but they never actually got there because they became Lost in Space
 
  • #6
Janus
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Entropy said:
Alpha Centauri is a trinary system. I dought you'll find any hospitible worlds there. The orbits are just to unstable.

Alpha Centuari A and B have a closest approach of about 11 AU. This means that both have a zone in which they could have stable planetary orbits that extends out to 2 AU from each star. Alpha Centauri C is too small and far away to have any significant effect on the stabilty of planets around the other two (In fact, it is not even clear whether C is even gravitationally bound to A and B)
 
  • #7
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Alpha Centuari A and B have a closest approach of about 11 AU. This means that both have a zone in which they could have stable planetary orbits that extends out to 2 AU from each star.

Of course it is possible for stable orbits to exist, but it isn't that likely.
 
  • #8
You would have thought being the nearest star system to ours that we'd have found planets already.
 
  • #9
TDS
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To support your statement.

I would say that the statement "One cannot see the forest for the trees" applies here.:biggrin:


FeynmanMH42 said:
You would have thought being the nearest star system to ours that we'd have found planets already.
 
  • #10
russ_watters
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Have people looked for planets there? I would think we could have deteced planets if they were there.
 
  • #11
tony873004
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Alpha Centauri being closest star system doesn't really benefit the detection techniques. We're not trying to "see" the planets. We're trying to measure a doppler shift in a star's velocity caused by an orbiting planet.
 

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