Fw: [meteorite-list] Origins

[Jose Campos]

Hi List,
The probability of a meteorite originated from Mercury, being able to reach Earth (or Venus or Mars, for that matter), must be exceedingly small, as it would be strongly attracted towards the Sun, unless its initial orbit would be disturbed in such a way as to be "kicked out" by a close encounter in the Sun's vicinity,  with a passing asteroid or a comet?

José

----- Original Message ----- 
From: MARK BOSTICK 
To: Martin Altmann ; Sharkkb8 at aol.com ; Meteorite List 
Sent: Saturday, June 12, 2004 2:20 PM
Subject: Re: [meteorite-list] Origins


Hello Martin and list,

Not saying Enstatites are from Mercury, it seems to me that they formed much further from the sun.....but doesn't everything get kind of pushed into the asteroid belt?  That was my understanding why there are still asteroids in the belts.....they get replaced.



Mark Bostick
www.meteoritearticles.com



  ----- Original Message -----
  From: Martin Altmann
  Sent: Saturday, June 12, 2004 6:28 AM
  To: Sharkkb8 at aol.com; meteorite-list at meteoritecentral.com
  Subject: Re: [meteorite-list] Origins

  The Enstatite Chondrite Neuschwanstein had its aphelion in the asteroid main belt, thus it's not related to Mercury.
  Here a picture of the orbit
  http://www.heise.de/tp/deutsch/special/raum/14785/1.html

  Martin 
    ----- Original Message ----- 
    From: Sharkkb8 at aol.com 
    To: cj_peanut at msn.com ; meteorite-list at meteoritecentral.com 
    Sent: Saturday, June 12, 2004 10:28 AM
    Subject: Re: [meteorite-list] Origins



    cj_peanut at msn.com writes:


      What about Mercury, Saturn, Jupiter...Etc? Is it just because we have to point of reference or maybe distance...Just Curious!


    There was widespread belief that the Enstatite Chondrites originated within Mercury's orbit, if they weren't actually Mercurian themselves, but I haven't read any particularly recent scientific assessment on that position....any updates out there?   The "giants" (Jupiter and Saturn) are considered to be essentially gaseous with prohibitive escape velocities as well, so I don't think there's much speculation about them being reasonable candidates for parent bodies.

    Gregory 


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