Solun - The Pocket Planetarium

"Probably the nicest planetarium program I have seen on any PDA!"

Snapshot: Example star chart display.
Example star chart display. (Psion Series 5mx)
Not full size.

main features

Planetarium display.: The sky as it appears to the observer, in any direction.
Azimuthal projection for natural-looking displays.
Show up to 5000 stars, 150 other objects, Sun, Moon and planets.
View from any city in the Psion's built-in world time database.
Star atlas display.: All the features of the planetarium but with the display aligned as an atlas.
Orrery and moon-phase displays.: 3D orrery can be viewed from any angle.
Galilean moon and rings of Saturn displays.: The positions of the four largest moons of Jupiter and the rings of Saturn.
Day/night map of the world.: Featuring both solar and lunar terminators.
Easy-to-use "Sky view" button.: Display and rotate planetarium with two pen taps.
Point-and-click pan and zoom.: Use pen or cursor keys to select a new centre for the chart and zoom in or out.
Indentify objects near the cursor.
Low storage requirements.: Base installation around 200K.
(Discounting optional online help file)

Full colour support.: Star chart colours fully customisable.
"Quick visibility" display.: What solar-system objects can been seen at the moment?
Fast cylindrical map projection.
Automatically aligns to north for southern hemisphere.
User-defined labels and lines.: Plot your own labels and lines on the chart.
Can be used to plot the paths of other objects, such as comets.
Comet orbit calculator.: Find and plot the current position of comets.
Large astronomical database.: Find stars and other objects by name.
Detail panels for many objects.: Including rise and set times, and apparent magnitude.
Almanac reports.: Including simple eclipse prediction.
Automatic update.: Configure any display to update in real-time.
Document based saved settings system.: Settings automatically saved.
Store multiple configurations in different files.
Run multiple copies of Solun at once.
Comprehensive user manual.: Includes astronomical glossary and other useful information.
Included as online help file.
Also available as EPOC Word or HTML format (depending on platform).
Direct support for machines using ',' as the decimal separator.: No dodgy fiddling about with macros and patches!