Software
Links
CelestNav
http://www.mobilegeographics.com/celestnav/
Palm Pilot shareware for finding your geographic position with a sextant.
Geo Magnetic Info
http://www.40-below.com/palm/geomaginfo.html
A Palm Pilot application to compute the magnetic declination, inclination, and magnitude for any location on Earth.
Navigator Light Software
Celestial and chart navigation software. Star finder. Nautical Almanac.