Stellarium - Shows a realistic sky in 3D, as with the naked eye, binoculars or a telescope, including fisheye projection for domes. [Free open source (GPL) - Windows, Mac, Linux] CyberSky - Displays the stars, constellations, deep sky objects, Sun, Moon, and planets as visible from any location on Earth at any given time, with optional animation. [shareware - Win98/2000/XP/Vista] Starry Night - Planetarium program which lets you view the sky from anywhere in the universe. [Commercial - Windows XP/Vista, Mac OSX] The Earth Centered Universe - Planetarium and telescope control program. [Shareware - Win3.1/95/98/NT] Navigator Light - Celestial navigation software with star finder, vetor chart and GPS interface. [Commercial, demo available. Windows] Dutch Occultation Association - Free version of Lunar Occultation Workbench ( LOW ). MegaStar Sky Atlas - Resource for deep-sky observing. [Commercial, demo available - Win3.1/95] SkyMap - 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] SkyTools - Observation planning, charting and logging software. [Commercial - Win95/98/NT] Home Planet - A space and astronomy package, with satellite-tracking capabilities. [Freeware - Windows] The Sky - Planetarium program showing 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] MyStars! - 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] Jovian Satellite Simulator - JupSat95 calculates and displays the positions of Jupiter's four Galilean moons. [Shareware Win9x/NT] Planet Finder - Simple display of the planets for any given date. [Java applet] EasySky - Planetarium with orrery, and animation. Commercial, demo available - Win95/98/Me/NT/2000/XP. Hallo Northern Sky - Planetarium program which includes the Tycho-2 and SAC 7.2 catalogues. Can access the GSC CD-ROMs. [Freeware - Win95/98/NT/XP] Lunar Map Pro - Astronomical 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 - Win2K/XP] Stellaris Software - 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 utilities such as an astronomical calculator. Planisphere - Displays appropriate sky area on monitor for any date. [Freeware - Windows] AstroViewer: Quick Orientation in the Night Sky - 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. Bubba's Bits - Offers the picoSky cellular telephone planetarium application which runs on most phones that allow Java game downloads. Solarark - 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). Project Pluto - Desktop planetarium and charting program. [Commercial - Dos, Win3.1/95/NT] Perseus Astronomy Simulation Software - Perseus is a complete desktop planetarium. Software features 3D solar system objects and scripting function for lecturers, plus ASCOM support. Italian and English versions are available. Alcyone Ephemeris - Astronomical ephemeris calculator covering the period 3000 BC to AD 3000. Includes star charts, graphs and orbit diagrams. Data Services - 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. LunarPhase Pro - 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. Commercial, free demo, Windows.