[meteorite-list] Origins

From: Martin Altmann <Altmann_at_meteoritecentral.com>
Date: Sat Jun 12 10:36:03 2004
Message-ID: <004a01c4508a$c1380740$cee050d9_at_9y6y40j>

Jo Mark,

In my little world I have no idea whether at all or from which reservoir the asteroid belt could be filled up nowadays, only the comet cores, which were captured by Jupiter on short periodic tracks, come into my mind.

We have to ask the celestial mechanics on that list.
Also the ratio of the probability to catapult a body from the inner solar system out on a stable orbit, let's say with an aphelion in the main belt and a perihelioin somewhere around Mercury's orbit
versus the same orbit but thrown from a collision in the main belt into the inner solar system would be interesting,
or not so?

Martin
  ----- Original Message -----
  From: MARK BOSTICK
  To: Martin Altmann ; Sharkkb8_at_aol.com ; Meteorite List
  Sent: Saturday, June 12, 2004 3:20 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@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@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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