|MadSci Network: Astronomy|
My original query was: News reports suggest that, due to a rocky core-melange covered with ice rather than ice containing some rock, Comet LINEAR probably formed near the early Sun. If so, how did it end up in the Oort Cloud, so far from that Sun? Which garnered this reply: "A question similar to yours has been answered on our site." However, with respect, the information under that heading assumes all comets in the Oort formed there and could be assumed to be in situ_; my query was how a comet presumed to have formed closer to the Sun could have transported itself to the putative Oort Cloud. There is no information on this. I could hypothesise a Jovian slingshot into the outer Solar System, which of course raises the question of how many of the Oort Cloud comets actually formed there and how many came to reside there by some other mechanism than _in situ_ formation. For example, are they all home-grown, or could some of them have been acquired in the past from some other star's Cloud during a close fly-by? Could interstellar space be cluttered with cast-off cometary and asteroidal bodies from star-to-star fly-bys (with all the implications for the safety of interstallar spaceflight that entails)? Any information welcome.
Re: How did Comet LINEAR end up in the Oort Cloud? (2nd query, see Comments)
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