DigitalUniverseDemo   Update 1
               ------------------------------

Fixes a small bug which caused a DUOS4: requester to pop
up when looking for the milky way data. This of course should
be within the assign DUDemo: for the demonstration version
of DU.

Anyone who downloaded the dudemo.lha prior to 07/03/2009
need not download the whole arcive again but can download a
file containing just the DUDemo executable from
http://www.digitaluniverse.org.uk/tempfiles/dudemo_patch.lha




DESCRIPTION

This is a demo version of the commercial software package
"The Digital Universe".  It has the following restrictions
and limitations over the registered version:

1.  Stars, galaxies, nebulae, and clusters are only shown
    in a square from 4 to 7 hours right ascension and -15 to
    15 degrees declination.  This roughly covers the region
    occupied by the constellation of Orion, and is visible
    from both the northern and southern hemispheres.

2.  The demo version will not allow you to simulate a view of
    the night sky later than November 5, 2007 nor before
    January 1, 2005.

3.  Most of the hypertext encyclopedia of astronomy has been
    removed.  The exceptions, which remain with this demo
    package include:
    - the online help on how to use the software
    - the description and pictures for the Sun
    - the description and pictures for M42 (The Great Orion
      Nebula), M43, M78, IC 434 (background illumination for
      the Horsehead Nebula), and Betelgeuse - objects which
      are located in the region defined by restriction # 1.


REQUIREMENTS

This demo will run on any Amiga with Amiga OS4 or greater, at
least 3 megabytes of memory, and approximately 6 megabytes of hard
drive space.

To play the intro theme tune an MP3 datatype is required. If no
datatype is available DU will still work and simply ignore the sound
file intro.mp3.  An MP3 datatype can be obtained from OS4 Depot at
http://os4depot.net/share/datatype/sound/mpegadt.lha


INSTALLATION

The software is installed with the Amiga's standard "Installer"
utility.

"The Digital Universe" requires MUI (Magic User Interface) 3.8 or
later in order to operate.  Version 3.9 is provided with Amiga OS4.

Then, just click on the DUDemo-Install icon and answer the
questions.  You must do this even if you extracted the archive
where you would like to use it.  In that case, just select an
"in-place" installation.


RUNNING THE PROGRAM

To run the program, just double-click on the "DUDemo"
icon.  If you wish to bypass the introduction, enable
the NOINTRO tooltype in the application's icon.

The first time you run the software you will be prompted to
enter your timezone and location latitude and longitude. You
can accept the default values if in a hurry but remember to
change them later!

If you wish assistance in using the software, a context-sensitive
help system is built in.  Just place the mouse pointer over the
gadget or window you need help with and press the HELP key.  If
your mouse pointer is over the "backdrop" window (where the stars,
etc. are drawn), general information about using the program is
presented.


IMPORTANT NOTE

This Demo Version of The Digital Universe v1.50 will NOT conflict
with nor cause any operational problems if you already have the
older 68k version 1.03 installed.  In fact it is even possible to
run both versions at the same time should you so wish.

Trying out this demo will *not* lock you into an irreversible
upgrade path !