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.

Desktop planetarium and charting program. [commercial - Dos, Win3.1/95/NT]

Complete line of PC astronomy software, including Stella 2000 - talking astronomy suite with encyclopedic reference, logbook, orrery, and planetarium with telescope control. Free astronomy software gifts on offer here. [shareware,freeware,commercial - Win95/98/Me/NT/2000/XP]

resource for deep-sky observing. [commercial, demo available - Win3.1/95]

observer-oriented star mapping and telescope control software. [commercial, demo available - DOS]

planetarium program displaying the sky from anywhere on Earth, in the solar system, or in the Milky Way, and for any point in time in the future or past. It supports numerous telescope computer controllers. [commercial, demo available - Win3.1/95/NT, Mac]

a CD-ROM planetarium and star-charting program equally suited to both the casual stargazer and the serious amateur or professional astronomer, although its feature list will appeal especially to the more advanced user. [Commercial, demo available - Win95/98/NT]

an astronomical data display engine allowing full control over what objects are displayed, with "hypertext-like" information about those objects. Beginning to show its age. The demo uses a DOS installer which failed to work on this reviewer's system. [commercial, demo available - Win3.1/95]

Observation planning, charting & logging software. [commercial - Win95/98/NT]

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

A comprehensive space and astronomy package, with satellite-tracking capabilities. [freeware - Win95/NT]

planetarium program showing you the sky on any date, from any place on earth. Has features to benefit a wide range of interest levels, from the beginning hobbyist to the seasoned professional. [commercial, Win98/NT, MacOS]

turns your Windows Desktop into the night sky as viewed from your own back yard, no matter what the time or which part of the world you live in. [Freeware - Win95/98/Me/NT/2000]

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]

Celestial navigation software with star finder, vetor chart and GPS interface. [commercial, demo available. Windows]

displays stars, constellations, planets, galaxies, and star clusters, with animations and a screen saver. [Shareware - DOS/Win 3.x]

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

JupSat95 calculates and displays the positions of Jupiter's four Galilean moons. [Shareware Win9x/NT]

rudimentary display of the planets for any given date. [Java applet]

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

Planetarium with orrery, and animation. Commercial, demo available - Win95/98/Me/NT/2000/XP.

a multi-feature digital orrery. [Shareware - Windows 95/98/ME]

planetarium program which includes the Tycho-2 and SAC 7.2 catalogues. Can access the GSC CD-ROMs. [Freeware - Win95]

basic planetarium designed to show the sky as seen from any place on Earth at any date. Accuracy has been sacrificed for the sake of "photorealism". Uses the HR catalog of 9000 stars. This reviewer encountered hardware incompatibility problems, despite the appropriate specs. [Freeware Win 95/98/2000 and Linux, + 3D Card with OpenGL support ]

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

Lunar Map Pro is astronomy software for amateur observers of the Moon. It has over 13000 features with full search data base of all the known craters including NASA Apollo landing sites.[commercial]

Free version of Lunar Occultation Workbench ( LOW ).

Stellaris is an astronomy shareware program. It includes simulations of the night sky (including NGC objects) and solar system. It also plots user-definable graphs, displays space images and comes with various utilites such as an astronomical calculator.

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.

A sophisticated java applet showing 9000+ stars, planets, and messier objects.

Displays appropriate sky area on monitor for any date. [Freeware - Windows]

Interactive night sky plotter. [freeware - Windows]

Multimedia desktop planetarium on CD-ROM. [Commercial]

Virtual planetarium and merchandise information. [commercial - Windows/Macintosh]

Photographic-based star atlas and planetarium. [commercial - Windows 9x/NT/2000/XP]

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.

Shows the daylight face of the Earth, the position of the Sun, the position of the Moon and its phase. [freeware - Windows 9x/NT/2k/XP]

Home of Scorpius 2005 Personal Planetarium which features highly realistic rendering of the night sky and deep space objects based on astronomical photographs. Software requires that the Java Runtime Environment be installed.

Offers the picoSky cellular telephone planetarium application which runs on most phones that allow Java game downloads.

A free online planetarium JAVA-applet for producing detailed finder charts for 10,000s of deep-sky objects. Stars to magnitude 11.5 and deep-sky objects to magnitude 16.5 may be viewed and printed.

Planet2010 high accuracy astronomy software using VSOP87 planetary theory for calculating the positions of all of the planets within our solar system. Software is accurate for years between 1900 and 2100 (commercial - win95,98,NT,win2000,XP).