Re: Would Jupiter's red spot appear northerly from our southern hemisphere?

You are correct, the view of Jupiter from different parts of the world can 
be "upside-down" compared to one another.  However, this doesn't change 
where the northern hemisphere is.  For example, look at a map of the 
United States.  Pennsylvania is farther "up" than Florida- but it would 
make just as much sense for it to be that much farther "down."  The 
concepts of north and south are totally made up by people, and doesn't 
affect up or down.  And, as you may know, there is no up or down in space, 
since there is no common gravity to use as a reference.  So, whenever you 
see a picture of Jupiter, it is shown with south on the bottom just to 
make things easier.  After all, if we showed pictures of things that had 
no bottom, but only a south side, at any rotation we pleased, things could 
get confusing- the only way you could tell which hemisphere that storm was 
would be to look it up, the picture would be indecipherable.

[Moderator's note: the planets orbit the Sun more-or-less in a plane, and 
(except for Uranus) their axes of rotation point out of this plane at some
smallish angle. So it it pretty easy to define which of Jupiter's poles is the
north one -- it's the one which points out of the plane in approximately the
same direction as the Earth's north pole.]