Palm Pilot / Astronomy?

My niece just gave me a shiny new Palm (Pilot?) and I keep lists, notes, addresses etc. but otherwise know almost zero about computers. An astronomy friend of mine told me that several club members have them with "astronomy programs" on them.

Does anyone know what kind of astronomy program will load into mine (14 Meg) and where to get such program(s)?

Thanks in advance;
S.S.

Stephen,
The one I like most and its the only Astro program loaded on my PalmPilot is Planetarium by Andreas Hofer Software.

Im running Version 2.2.2 and at the time I frist tried the program he offered a Trial version, I liked it and registered it.

Im taking the info off my program and it says info and latest release is:
http://www.aho.ch/pilotplanets

Clear Skies
Knox

2Sky is for Palm Pilots. I programed tow of them for a friend, he likes the program a lot.
http://in2space.com/
Floyd