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-
- The Sundial
-
- (Hint: Run WorldClock Lite and refer to the screen while reading this documentation page
- from a printout.)
- __________________________________________________________________________
-
- Choose Sundial from the WorldClock Lite menu in the menu bar at the top of the
- screen.
-
- The Sundial screen shows a rectangle with a simulated fencepost at the center. If the
- sun is above the horizon, the shadow of the fencepost is graphically displayed. If you
- let the program run all day, the shadow will move in the same pattern that a real shadow
- would.
-
- When the sun goes down, the shadow disappears, and the surrounding rectangle goes
- through deeper shades of gray until it becomes completely black when the sun is more
- than 18┬░ below the horizon.
-
- The Animate button on this screen will allow you to speed up the movement of the
- display to have 24 hours go by in a couple of minutes. After clicking on the Animate
- button, it will change to a Real Time button. Click on the Real Time button to stop
- the animation and return to the correct display for the current date and time. While the
- display is animating, you may temporarily "freeze" the movement by clicking on the
- digital clock panel at the lower right of the map. To resume animation, click on the clock
- panel a second time.
-
- To the right of the sundial rectangle, the text readout gives the azumuth (degrees clock-
- wise from true north) and the altitude (degrees above the horizon) of both the sun and
- the moon. By selecting a date on one of the "Calendar" screens, and animating the sundial
- to the desired time and then freezing the display, photographers can forecast the positions
- of the sun and moon for a "shoot", or can determine the best times or locations for a
- "shoot".
-