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. With the selector 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 select any other object as the current object by tapping the button with the magnifying glass icon.
Many people find it difficult to estimate the altitude of an object on the sky.
This is a simple trick to improve these estimates. The Moon is in western direction and therefore about to set. In the left display we find that it has just crossed the horizon. The sky view shows a camera-like image of the sky with the stars and planets as it can be seen at the specified location and time. This picture shows the sky for the same place and the same time as above when looking in shoutheastern direction.