rudimentary sky-charting program outputs schematic maps in five projection types, using a small star database or the SAO and PPM. [Freeware DOS/Win95]

Deep Sky Star Charting and Telescope Control System. [commercial - Win9x/NT/2000/XP]

basic planetarium, with 3 view styles. Includes stars, planets, comets, asteroids and objects from the NGC catalog. [Shareware - Win9x]

Interactive astronomy program for Unix systems with X Windows and Motif. [open source - Unix]

program to create and print sky-charts, showing stars, galaxies, clusters, and nebulae. [freeware]

planetarium program generating accurate charts, with stars, planets, comets, and asteroids. Orrery views make it a useful teaching tool. [shareware - Win3.1/95/98/NT]

Interactive night sky plotter. [freeware - Windows]

The AstroViewer planetarium applet shows a sky map for any time and any location on Earth. Individual printable sky maps (GIF, PDF) may be created.

Lunar observer's toolkit with real time moon simulation including libration. Identify lunar features; zoom, pan and print moon maps; monthly lunar ephemeris; many charts, diagrams and printouts.

from the U.S. Naval Observatory. Online forms provide sunrise, sunset, moonrise, moonset, and twilight times for one day or one year; moon phases, eclipse charts, and data for major solar system bodies and bright stars.