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  1. #1
    Imperishable Stars's Avatar
    Imperishable Stars Guest

    Default More on the search for Planet X



    Sometime between 1905 and 1908, Percival Lowell coined the term
    'Planet X' when referring to any
    undiscovered planet beyond the orbit of Neptune. Based on William
    Herschel's discovery of Uranus
    in 1781 and Johann Gottfried Galle's discovery of Neptune in 1846,
    Lowell conjectured that even
    more distant planets were awaiting discovery. Because Urbain Jean Joseph
    Leverrier had
    successfully predicted Neptune's position by computing its gravitational
    pull on Uranus, Lowell
    turned to similar orbital calculations to predict the location of Planet
    X. In 1930 Clyde
    Tombaugh, while working at the Lowell Observatory near Flagstaff,
    Arizona, found Pluto at
    celestial coordinates very near the location predicted by Lowell in
    1914. At first some hailed
    this as another triumph for celestial mechanics, although Tombaugh
    himself was more circumspect.
    However, as it became increasingly clear that Pluto was far too small to
    induce any observable
    orbital perturbations on either Uranus or Neptune, astronomers agreed
    that the 1930 coincidence of
    Pluto's position with Lowell's prediction was fortuitous.

    ........A
    group at the University of Toronto (Hogg, Quinlan and Tremaine, 1991)
    concluded that it was
    unlikely that any Planet X large enough to exert significant
    perturbations on the known planets
    would have escaped detection by IRAS; but they admitted that a smaller
    planet could have been
    missed for a variety of reasons. Considering all the evidence, we must
    conclude that the possible
    existence of Planet X is still an open question.


    John D. Anderson


    More:
    http://dosxx.colorado.edu/Pluto/PlanetX.Anderson.html


  2. #2
    Paul Lawler's Avatar
    Paul Lawler Guest

    Default More on the search for Planet X

    Imperishable Stars <belt@of.orion> wrote in news:GGt1d.24893$vkm.19684
    @twister01.bloor.is.net.cable.rogers.com:


    It depends on how you define "planet." If you consider Kuiper Belt objects
    like Quaoar or Sedna to be "planets" then certinly there are probably
    planets X, Y, and Z, and after that, I suppose, 1, 2, and 3.

    OTOH, if you are looking for a "smouldering brown dwarf" of 5 earth
    diameters a la Nancy Lieder, then no: It just ain't there. Sorry.

  3. #3
    Saul Levy's Avatar
    Saul Levy Guest

    Default More on the search for Planet X

    Nancy's Planet X is now supposed to be between the Sun and the Earth.
    And, to quote you, "...no: It just ain't there." Remember too, a
    giant disaster is still predicted to happen soon (?): a REAL POLE
    SHIFT! WOW!

    Saul Levy


    On Tue, 14 Sep 2004 04:58:04 GMT, Paul Lawler
    <stargazer@kilolaniDOT.net> wrote:


  4. #4
    Imperishable Stars's Avatar
    Imperishable Stars Guest

    Default More on the search for Planet X

    Saul Levy after climbing out of his child proof crib and scribbling on
    the wall cried:

    Saul Levy wrote:


  5. #5
    Saul Levy's Avatar
    Saul Levy Guest

    Default More on the search for Planet X

    You call that a better response than your usual? HA!

    Saul Levy


    On Tue, 14 Sep 2004 21:44:11 GMT, Imperishable Stars <belt@of.orion>
    wrote:


  6. #6
    Paul Lawler's Avatar
    Paul Lawler Guest

    Default More on the search for Planet X

    Imperishable Stars <belt@of.orion> wrote in news:LCJ1d.26151$vcv.20901
    @news01.bloor.is.net.cable.rogers.com:


    Predicted by whom, pray tell? Those "real men" who discuss "real ideas"
    here?

  7. #7
    Mac's Avatar
    Mac Guest

    Default More on the search for Planet X

    Saul Levy <saullevy1@cox.net> wrote in
    **************** **********
    Nancy's IMAGINARY PlanetX was not in any of the places she declared it was,
    and it still is NOT in any of the places, i.e., between Earth and Sol,
    where it presently is supposed to be...
    Again.
    --_Mac


  8. #8
    Saul Levy's Avatar
    Saul Levy Guest

    Default More on the search for Planet X

    Bert,

    There is no Vulcan either. Same argument: Any unknown planet of any
    size in the Solar System would destroy the orbits of all the other
    planets in short order.

    Saul Levy


    On Fri, 24 Sep 2004 07:33:10 -0400, herbertglazier@webtv.net (G=EMC^2
    Glazier) wrote:


  9. #9
    Paul Lawler's Avatar
    Paul Lawler Guest

    Default More on the search for Planet X

    Saul Levy <saullevy1@cox.net> wrote in
    news:4su8l0ttpv6ht1mb47l30cujel0avofi73@4ax.com:


    How can you SAY that? Of course there is a "specualated planet" called
    Vulcan. Bert himself speculated it, while eating fried Mexican sweet
    potatoes and drinking a beer.


  10. #10
    Double-A's Avatar
    Double-A Guest

    Default More on the search for Planet X

    Saul Levy <saullevy1@cox.net> wrote in message news:<4su8l0ttpv6ht1mb47l30cujel0avofi73@4ax.com>. ..


    Sure there could be a Vulcan.

    Vulcan was speculated to be the cause of the unaccounted for part of
    the precession of Mercury. Then Einstein claimed that precession to
    be proof of his general theory of relativity.

    So just throw out GR, and hello Vulcan!

    Double-A

 

 
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