You need Palm OS version 3.5 or later to run Planisphere.
Install psphere.prc on your handheld computer.
This is the only file you need to install.
Make sure your
Time & Place
are set correctly before using Planisphere for stargazing.
Tap the screen to highlight constellations
and show the names of stars and planets, then use the
Star Finder
to learn more about them.
For more detail, zoom in and scroll the chart
by dragging the stylus across the screen.
Tap the
time step
arrows to move forward and back in time.
Tap the clock icon to return to the present.
Night Mode
On a handheld computer with a black-and-white display,
the backlight reverses the display colors.
Planisphere's night mode
reverses its own display colors to counteract that reversal,
so the stars are once again white on a dark background.
On a color display, the stars are drawn in red on a black background.
When your pupils adjust to the darkness around you, looking at a color
display can be jarring; the red-on-black color scheme minimizes this problem.