View space from any point in the universe. This impressive package uses full color models to show you planets, classic space ships, space stations, and asteroids. View Jupiter from Io. View earth from an asteroid, and more.
[Report a dead link] http://www.shatters.net/celestia/
It prints highquality star maps in a variety of useful formats designed for use outside at night, including a 2-tone Milky Way, an option to generate a printed moon phase calendar, and a local horizon files may be associated with each observing site. This shareware version has a limited database, but is fully functional. A full commercial version is available which supports the Deep Space Navigator telescope interface, several models of digital setting circles, and the LX200 line of telescopes.
Also at http://www.davidchandler.com/[Report a dead link] ftp://ftp.seds.org/pub/software/pc/stars/dspac554.zip
Homeplanet, has earth map showing night and daytime regions, sky map, position and phase of moon and sun, positions of planets, db of 5000+ asteroids and comets, a telescope window which can be zoomed in on a piece of sky, horizon window, object catalog which allows archiving images, sounds, and tabular data about celestial objects, orrery, satellite tracking panel, view earth from window, satellite db editing, choose observing site selection from 1300 places, set time and date of observation, planetary position calculation using highly accurate VSOP87.
[Report a dead link] http://www.fourmilab.ch/homeplanet/homeplanet.html
A DOS program which calculates many options of the position of the moon. Including moonrise, moonset, dates of moon phases, sun and moon alt and azimuth, graphical moon position with constellations, world moon visibility maps.
[Report a dead link] http://www.ummah.org.uk/ildl/mooncalc.html
Orbital mechanics simulator. ORBITER is a free flight simulator that goes beyond the confines of Earth's atmosphere. Launch the Space Shuttle from Kennedy Space Center to deploy a satellite, rendezvous with the International Space Station or build your own custom station in orbit, or take the futuristic Delta-glider for a tour through the solar system - the choice is yours.
But make no mistake - ORBITER is not a space shooter. The emphasis is firmly on realism, and the learning curve can be steep. Be prepared to invest some time and effort to brush up on your orbital mechanics background. Very nice graphics.
[Report a dead link] http://www.medphys.ucl.ac.uk/~martins/orbit/orbit.html
Display conjunctions of planets, find objects in space, view the constellations from any viewpoint or time, find and download astronomy pics from the internet, print star charts, supports many languages, find asteroids, comets, and satellites. Includes Delphi source code here.
[Report a dead link] http://www.stargazing.net/astropc/
Show sky chart for dates 4000BC-8000AD any place in the world. Comes with 580MB of data include 15 million sky objects. Demo is 9MB.
[Report a dead link] http://www.skymap.com/