Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!brahms!desj From: desj@brahms.BERKELEY.EDU (David desJardins) Newsgroups: net.space Subject: Re: (More Ulysses) Message-ID: <12105@ucbvax.BERKELEY.EDU> Date: Fri, 28-Feb-86 18:27:31 EST Article-I.D.: ucbvax.12105 Posted: Fri Feb 28 18:27:31 1986 Date-Received: Sat, 1-Mar-86 18:12:45 EST References: <8602281534.AA03027@s1-b.arpa> Sender: usenet@ucbvax.BERKELEY.EDU Reply-To: desj@brahms.UUCP (David desJardins) Organization: University of California, Berkeley Lines: 18 In article <8602281534.AA03027@s1-b.arpa> ST401385%BROWNVM.BITNET@WISCVM.ARPA (Geoffrey A. Landis) writes: > (1) If Galileo [Ulysses?] passes close over the south pole of the >sun, and is in an elliptical orbit crossing Jupiter's orbit, it will be >VERY FAR from the sun when it passes over the north pole (nb. The facts >given are enough to calculate how far, if you assume that Jupiter's orbit >is normal to the polar axis of the sun, but I'm too lazy to do it). The one thing I am sure of is that if it orbits the sun and passes over the north pole it will also pass over the south pole. I think this response does not take into account the use of Jupiter to kill the space- craft's angular momentum. Obviously if it still has any angular momentum in the plane of the ecliptic it can never pass over the pole (since when over the pole its angular momentum is zero by definition!). Still looking for a definitive statement on this subject. -- David desJardins