In Compass view the
information for celestial objects is given in azimuth (the horizontal angle
between north and the direction of the object,
counted eastwards) and altitude (the vertical angle
between the horizon and the height of the
object). Azimuth is measured in degrees, counted
eastwards. Altitude is also measured in degrees,
0° is at the horizon, 90° is at the zenith.
Negative values are below horizon.
These two values are shown
graphically. The circle at the right of the
display shows the azimuth of the objects on a
compass scale. To use this dial, turn the Palm
Organizer so that 'N' points to the north. (If
you don't know where north is, try to turn the
Palm so that the Sun or the Moon icon points to
the Sun or to the Moon. During the night you
could also try to find Polaris if you are in the
northern hemisphere).
The semicircle on the left shows the
altitude. Hold your Palm Organizer upright so
that 'Z' points to the zenith. Objects below the
horizon line 'H' are not visible at the specified
time and location.
You use compass
view to do the following:
Find a Planet
or an object in the sky
Use your Palm
as a compass. Here is how this is
done.
Determine at
a glance which planets or other objects
of interest are above and below horizon
Follow the
path of the sun during the day to find
the best time for taking a photo
Displayed
information
In the upper left
and right corners you can see Altitude and
Azimuth for the current object. Altitude is
positive above horizon, negative below. Objects
in the circles are drawn in grey if they are
below the horizon (PalmOS 3.0 or higher only).
Azimuth is counted eastwards, starting with 0°
at North. If you prefer Azimuth to start with
zero at South, you can select this in the Preferences screen. In the Magnetic
Declination
screen you can select if the azimuth numbers
should be corrected for magnetic declination so
that they correspond to bearings on a magnetic
compass.
Inside the right
circle there are the equatorial coordinates of
the current object shown below the text
"r.a. / dec.". In the other quarter,
the constellation, magnitude and distance of the
current object are shown.
At the bottom
there are the location and the time shown on the
left side and on the right side there is the
Local Mean Sidereal Time (LMST) and the Julian
Date
Selecting the
current object
With the pull down
list at the upper right you can choose the Sun,
the Moon or a planet as the current object. The
current object has lines drawn from the center
and the various numbers are data for the current
object. You can also tap on any symbol in the
circles to make that object the current one.
To make a object
not in the list the current object, tap on the
find button . This leads you to the
Select screen where you can select any planet,
star, deep sky object, constellation, comet or
asteroid.
The pull down list
can be customized by selecting the item
"Customize...". This brings you to the
Selected Objects screen.
For each of the 12
entries you can:
Assign
another object by tapping on the object
name
Select if it
should be shown in the circles by
checking or unchecking the checkbox.
There are 12
entries you can freely assign. The 13th entry in
the pull down list is always the last search made
with the find button.
The controls
There are several
pen-sensitive regions in Compass view:
The Now
button uses the Palm's
current time when activated.
In Compass view the
information for celestial objects is given in azimuth (the horizontal angle
between north and the direction of the object,
counted eastwards) and altitude (the vertical angle
between the horizon and the height of the
object). Azimuth is measured in degrees, counted
eastwards. Altitude is also measured in degrees,
0° is at the horizon, 90° is at the zenith.
Negative values are below horizon. 
These two values are shown
graphically. The circle at the right of the
display shows the azimuth of the objects on a
compass scale. To use this dial, turn the Palm
Organizer so that 'N' points to the north. (If
you don't know where north is, try to turn the
Palm so that the Sun or the Moon icon points to
the Sun or to the Moon. During the night you
could also try to find Polaris if you are in the
northern hemisphere). 
. This leads you to the
Select screen where you can select any planet,
star, deep sky object, constellation, comet or
asteroid.
uses the Palm's
current time when activated.
button brings you to 
shows detailed
information about the current object.
shows a table of rise and
set time of all the objects in the pull
down list.