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Ecliptic                      
Horizon                       
Gal Equator                   
Telrad
Aperture                      
Central x-hair
Border                        
                                  
   The first four items are called mensuration (measuring) marks. All
four provide measurement of right ascension and declination, just as
grids on terrestrial maps provide measurement of latitude and
longitude.  All four toggle to ON or OFF.  "Ticks" form cross-like
symbols chart showing where lines of RA and declination cross.  They
basically perform the same function as a real grid,  but aren't nearly
as intrusive.  "Hatches" are small marks on the side of the chart
indicating RA/dec intervals;  "side labels" are similar,  except that
they label the mark with the RA or dec of that position.  A little use
of all four markings will quickly make their natures apparent.

   Select any of these four,  and you will see a Spacing Menu for that
option.  This menu will look like this:

    [ ] Ticks on
* Automatic spacing
   declin  right asc
    1'        2s
 *  2'        5s
    5'     * 10s
   10'       30s
   20'        1m
   30'        2m
    1         5m
    2        10m
    5        30m
   10         1h
   30         2h
Epoch: J2000.0
[Equ]  Ecl  Alt  Gal

   First,  a check-box is provided to let you turn the marking in question
on or off.

   The currently set spacings in declination and right ascension will
have check marks beside them.  This menu lets you adjust the spacing
and epoch of the marking.

   By default,  the menu will show "Automatic Spacing" checked.
This means that Guide will judge the ideal spacing for the amount
of area covered by a given chart, using a small spacing for small
fields of view and a larger spacing for large fields.  You will
probably be content to leave automatic spacing on at first.  If you

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