Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: Notesfiles $Revision: 1.7.0.10 $; site trsvax Path: utzoo!linus!decvax!bellcore!petrus!scherzo!allegra!ulysses!mhuxr!mhuxn!ihnp4!inuxc!pur-ee!uiucdcs!convex!trsvax!hdc From: hdc@trsvax Newsgroups: net.astro Subject: Re: Comet Origins? Message-ID: <68900004@trsvax> Date: Thu, 26-Dec-85 18:17:00 EST Article-I.D.: trsvax.68900004 Posted: Thu Dec 26 18:17:00 1985 Date-Received: Sat, 28-Dec-85 23:18:12 EST References: <308@inuxm.UUCP> Lines: 16 Nf-ID: #R:inuxm.UUCP:308:trsvax:68900004:000:711 Nf-From: trsvax!hdc Dec 26 17:17:00 1985 /* Written 1:18 pm Dec 17, 1985 by utastro.U!anita in trsvax:net.astro */ In article <487@ukc.UUCP>, gcb1@ukc.UUCP (G.C.Blair) writes: > I am not a dynamacist > but rather, I work on the chemistry of the comets and that field > does offer constraints but these constraints cannot decide between > formation near Neptune and out further. /* End of text from trsvax:net.astro */ But aren't those constraints pretty much supposition? The upcoming Uranus fly-by might provide a case in point. I've heard some idle talk that Uranus' hydrogen/helium ratio may be radically different than the accepted line. If so..., well suffice to say that current theorizing would have to be radically altered...?