Thanks Rob....so the named groups at the moment just represent similar orbiting asteroids which over time have settled into that orbit over time after they were nudged from the asteroid belt and over time will likely migrate further for reasons similar to the recent near miss which has changed it's orbit and caused it to move groups?
Graham On Mon, Feb 25, 2013 at 7:13 PM, Matson, Robert D. <[email protected]> wrote: > Hi Graham, > > Keep in mind that asteroid orbits are dynamic, and that most of > the Apollos, Amors and Atens of today once had their aphelia > between Mars and Jupiter. Planetary perturbations and resonances > over the millenia caused those orbits to evolve into earth-crossing > (or in the case of Amors, earth-approaching) orbits. > > --Rob > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Graham > Ensor > Sent: Monday, February 25, 2013 11:05 AM > To: Michael Mulgrew > Cc: Meteorite list > Subject: Re: [meteorite-list] NEO types > > But the diagram does not show the Aten group's orbit intersecting the > asteroid belt?..... > > Graham > ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
