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Major Scientific Discovery - Extrasolar planet announcement 25 Jan 18:00 GMT

  1. Jan 25, 2006 #1

    Anyone with some inside information?
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Jan 26, 2006 #2
  4. Jan 26, 2006 #3


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    Some blog discussion:

    Clear explanation of technique here:

    BBC article here:
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  5. Jan 28, 2006 #4


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    Best discussion of this I've seen:

    http://www.anthonares.net/2006/01/published-research-synopsis-55-earth.html [Broken]

    includes an interesting graph plotting mass/distance date on exoplanets found so far

    and the beautiful lensing light curve that this discovery is based on

    the arxiv preprint of the technical journal article is also available:

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  6. Feb 9, 2006 #5


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    Well, I wouldn't call it 'Earth-like', except that it is 'small' compared to Jupiter, Saturn, and the majority of exosolar planets yet discovered.

    It has a mass 5-5.5 times that of Earth, it orbits a red dwarf (smaller and cooler than the sun), and its period about that parent star is 10 years! Not quite Earth-like, IMO.

    Another story link - http://www.stuff.co.nz/stuff/0,2106,3551543a10,00.html [Broken]

    from the BBC on-line article. Definitely not earth-like.
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  7. Feb 9, 2006 #6
    Astronuc, I think what they mean is, that it’s the most Earth-like planet so far discovered. And going by the criteria of what constitutes an Earth-like planet, it may be the closest approximation we have for some time, now the TPF has been http://www.spaceref.com/news/viewnews.html?id=1092"
    Last edited by a moderator: Apr 22, 2017
  8. Feb 10, 2006 #7
    How do they know it has a solid surface? It could be a smaller gaseous planet like Uranus or Neptune.
  9. Feb 21, 2006 #8


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    How would gravity on this planet's surface compare to earth's
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