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Solar System Similar to Ours Found

  1. Jul 4, 2003 #1
    http://www.msnbc.com/news/934038.asp

    Its similar in that the "Jupiter-like" planet they've viewed in this case is caught in a circular orbit. Most of the planets found in other star systems are in the oval shaped orbit. The oval orbit of large planets tends to wack the smaller ones out of the system.

    In this case there is a chance that an "earth-like" planet has remained in the system due to the circular orbit of the "Jupiter-like" planet. Check it out! Thanks.
     
    Last edited: Jul 4, 2003
  2. jcsd
  3. Jul 4, 2003 #2

    marcus

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    glad to hear of HD70642
    the eccentricity is estimated at 0.10 according to this extrasolar planets data site:

    http://cfa-www.harvard.edu/planets/HD70642.html

    their figure for the period is 2231 days
    for the semimajor axis: 3.3 AU
    for the mass (if system seen edge on) 2 jupiters

    the journal article announcing it (authors include both Marcy and Butler who are veterans) is:

    http://cfa-www.harvard.edu/planets/papers/hd70642-carter.pdf

    at the end this article has nice plots of data, curves and
    tables of the wobble speed.

    the star is a metal rich G5, very similar to the sun in both mass and surface activity (they say)

    the wobble speed amplitude is estimated at 32 meter/second

    (the msn article you gave a link to may have a mistake, it said 7 m/s)

    this is a real interesting system, 0.1 is still pretty eccentric by solar system standards I think. striking thing is the rarity of
    only moderately eccentric jupiters at jupiter-like distances
    solar system looks like as good as it ever gets compared with these others
     
  4. Jul 4, 2003 #3
    if the univers is infinite than it was bound to happen. Well not infinte but constanly exspanding
     
    Last edited: Jul 5, 2003
  5. Jul 6, 2003 #4

    Phobos

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    Thanks for the link to the article, quantumcarl.
    Now let's get those next generation telescopes up and running so we can detect some terrestrial planets!

    Possibly infinite AND expanding, but let's not get into that in this topic. :wink:
     
  6. Jul 6, 2003 #5

    Eh

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    Hey Carl, where did you get that neat cube?

    Also, did they mention how far away this system is?
     
  7. Jul 7, 2003 #6
    Yeah... or, we just keep an eye out for pirated TV signals of "I Love Lucy" and the "Tonight Show" emanating from one of these solar systems with a high metal pool sun. That wouldn't be to hard to miss!
     
  8. Jul 7, 2003 #7
    http://cfcp.uchicago.edu/lss/.. eh?
     
    Last edited: Jul 7, 2003
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