Galileo 1.0 for the Psion Series 5
==================================

Galileo plots the positions of the Galilean moons of
Jupiter, given the date and time of observation. The
moons can be shown as they would appear through binoculars
(and the naked eye if you're Superman!) or through an
astronomical telescope (east/west reversed).

It uses a simplified algorithm that only calculates the
east/west positions of the moons - it was really written
so I could check I was seeing what I thought I was seeing
through my oh so wonderful Tasco binoculars...

Installation
------------
Unzip the archive, and place the two files galileo.app and
galileo.aif into the directory \System\Apps\Galileo. The
program should work when installed either on the internal
RAM drive or a Compact Flash card, although as I haven't got
one I can't confirm that. Galileo should now appear on your
Extras bar (no flashy icon I'm afraid, at least not yet).

Usage
-----
Run Galileo, and it will ask you for the date and time of
the observation. Input the time as local time and the
number of hours your time zone is ahead of Greenwich Mean
Time. Finally select whether you want a binocular or telescope
view, and press Enter or select the OK button. Galileo will
then plot the positions of the four moons, both in plan view
and the view you would have from Earth. Press any key to return
to the entry dialog, from where you can have another go or
press Escape to exit.

Ob. disclaimer
--------------
I have done my best to ensure that Galileo works and I can't
imagine it trashing your machine, but don't blame me if spooky
things happen after you install it. It's probably the pixies...

Galileo is freeware, copyright Andrew Hedges 1997.

If you have any comments, suggestions etc. feel free to drop me
a line at galileo@coquelicots.u-net.com (though I can't promise to
answer everything).


History
-------
The original program was published in Sky and Telescope magazine
in June 1989 for the Apple II (!!!), ported to QBasic by Dan Bruton
(email:wdb3926@zeus.tamu.edu) for his program galsat (see 
ftp://ftp.doc.ic.ac.uk/Mirrors/ftp.cdrom.com/pub/simtelnet/msdos/astronmy/galsat53.zip)
and finally ported to Psion OPL my me.