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Get A2.0 from Internet
Get B1.0 from Internet
Get 2MASS from Internet
Get GSC-2.3 from Internet
Get UCAC-2 from Internet
Get CMC-14 from Internet
Clear Ax.0 Data

   The A1.0 and A2.0 catalogs were originally distributed on CDs.
A1.0 consumed ten disks;  A2.0,  eleven.  If you have these disks,
you can zoom in on an area of interest,  then click on "Get A1.0"
or "A2.0 from CD-ROM".  Guide will prompt you to insert a
particular Ax.0 disk into the CD-ROM drive;  do this,  and it will
extract data covering the current area shown on-screen,  then ask
you to put the Guide CD back in.  (If you're running Guide from the
hard drive,  as described on page 60,  you can ignore that message.)

   A2.0 consumes a total of 6.3 GBytes,  which is not much on a modern
hard drive.  If you have copied part or all of Ax.0 to your hard drive,
then Guide can display it without going through the Extras... Get Ax.0
from CD-ROM menu.  In this instance, Ax.0 will simply be shown on the
charts in the same manner as stars from any other catalog.  To do this,
you need to edit the file GUIDE.DAT with a text editor (such as Notepad)
and add a line such as this:

A2_PATH=14.3;c:\a2

   The above line would tell Guide that if it's showing stars fainter
than magnitude 14.3,  it should show A2.0 stars.  (If the current
magnitude limit is brighter than this,  there is probably not much
point in showing the Ax.0 stars.)  It also tells Guide that the Ax.0
files can be found in the \a2 directory of the C: drive.

   Once you have done this,  you can ignore the "Get Ax.0 from CD-ROM"
and "Get Ax.0 via Internet" options,  because the Ax.0 stars will simply
pop up automatically when you get to a faint enough magnitude limit.

   As the catalogs became larger,  distribution on CD-ROM ceased;
the remaining catalogs are only available via Internet.  You must
first zoom in to the area for which you want data;  then click
on any of the "get (star catalog) from Internet" options,  and
Guide will make a request of the VIZIER astronomical data server
at the University of Strasbourg,  in France,  for data covering
that area.  After a pause to download the data,  the screen will
be redrawn with the new star catalog data shown.

   As with most objects shown in Guide,  you can then right-click
on any of the downloaded objects to get information about it,  and
get "more info" or click on "display" to get control over how that
catalog is displayed:  the fields of view at which it is shown,
whether catalog IDs are shown as labels for each object,  the color

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