3D Solar System - http://www.tingan.com/index.asp?top=top&left=meny&right=space&main=w1

Aciqra (virtual planetarium) - http://aciqra.caglow.com/
Adastra Plus - http://www.coeli.com/
 - http://download.cnet.com/Adastra-Plus/3000-2054_4-10069889.html
AlphaCentaure (planetarium) - http://www.astrosurf.com/alphacentaure/english/index1.htm
Analemma (online) - http://www.analemma.com/Pages/framesPage.html
An Atlas of the Universe - http://www.atlasoftheuniverse.com/
Astrobyte Log System - http://www.mainbyte.com/astrobyte/
AstroCalc - http://www.lastrophoto.fr/AstroCalc_en.html
Astrofly - http://www.anumajor.com/astrofly/index.html
AstroNav Free - http://www.navsoft.com/index.html
Astronomy Slideshow - http://home.inreach.com/jayrob/
AstroStack lite (& plug-ins) - http://www.astrostack.com/
AstroViewer - http://www.astroviewer.com/
AstroWorkBench Planets - http://www.astrosoft.co.uk/
Asynx Planetarium - http://www.asynx-planetarium.com/
AziWorld (world map) - http://www.f1orl.org/azig.htm

Black Hole (calc) - http://www5f.biglobe.ne.jp/~mcs/blackhole.html
BoPlanets - http://sourceforge.net/projects/bo-planets/

C2A - http://www.astrosurf.com/c2a/english/index.htm
Cartes du Ciel (Sky Charts) - http://www.stargazing.net/astropc/
Celestia - http://www.shatters.net/celestia
Celestia Educational Activities - http://www.gregs-educational.info/
Chromoscope (Milky Way) - http://www.chromoscope.net/1.4.1/what.html
CNebulaX Project - http://www.uv.es/jrtorres/CNebulaX.htm
Cosmic Checkout (quiz) - http://www.skymapper.co.uk/html/download_zone.html

DeepSky (nffhp) - http://download.cnet.com/Deepsky-Free/3000-2054_4-10407765.html
Deepsky & Doublestar Database - http://www.xs4all.nl/~sahjps/astro.html
DeepSkyStacker - http://deepskystacker.free.fr/english/index.html
Distant Suns SE - http://download.cnet.com/Distant-Suns-Grand-Tour-3D-Screensaver/3000-2257_4-10248602.html

Earth & Moon Viewer - http://www.fourmilab.ch/earthview/
Eclipse info - http://eclipse.gsfc.nasa.gov/eclipse.html
EmapWin (eclipse) - http://www2c.biglobe.ne.jp/~takesako/cal/emapwin_eng_1.21.htm
ESO (European Southern Observatory) - http://www.eso.org/public/archiveindex.html

Gaia Sky - https://zah.uni-heidelberg.de/gaia/outreach/gaiasky/
Galactic Gravitation - http://www.btinternet.com/~jolinton/JollySoftware/index.html
GlobeSaver - http://www.cylog.org/graphics/globesaver.jsp;jsessionid=9D2C0D81A843A776927946742E75CF4A
Google Earth - http://earth.google.co.uk/
Google Mars - http://www.google.com/mars/
Google Moon - http://www.google.com/moon/
Google Sky - http://www.google.com/sky
Grand Tour - http://grand-tour-3d.lastdownload.com/

Heavens Above (website) - http://www.heavens-above.com/
Helio - http://www.petermeadows.com/html/software.html#top
Home Planet - http://www.fourmilab.ch/homeplanet/
HNsky - http://www.hnsky.org/software.htm

Jupiter - http://www.astrosurf.com/rondi/jupiter/
JupSat95 (donationware) - http://indigo.ie/~gnugent/JupSat95/

Kid's Astronomy (online) - http://www.kidsastronomy.com/

LunaView - http://www.myastroshop.com.au/guides/lunaview/lunaview.htm

Map-a-Planet - http://www.mapaplanet.org/
Mars Previewer II - http://www.skyandtelescope.com/resources/software/3304921.html?c=y&page=2
Mitaka (ffpu) - http://4d2u.nao.ac.jp/html/program/mitaka/index_E.html
MoonPhas (hp=Spanish) - http://www.filestube.com/c538097d22aa081503e9,g/MoonPhas.html
Moonphase (1) - http://www.tingan.com/index.asp?top=top&left=meny&right=space&main=w3
Moonphase (2) - http://www.die.net/moon/
Moonphase Calculator - http://www.moonphasesoftware.com/moon_phase_calculator/index.php
Moontool - http://www.fourmilab.ch/moontoolw/
Moovastar - http://www.xs4all.nl/~sahjps/astro.html
MyStars Live - http://www.relativedata.com/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=2

NASA Planetary Learning Suite (VFT - Virtual Field Trip) - http://quest.nasa.gov/vft/
NASA Scientific Visualisation Studio - http://svs.gsfc.nasa.gov/index.html
NASA's Eyes - https://eyes.nasa.gov/
NASA Sun Earth Day (2010.3.20) - http://sunearthday.nasa.gov/2010/index.php
NASA World Wind - http://worldwind.arc.nasa.gov/java/
Neave Planitarium (online) - http://www.neave.com/planetarium/
NED (NASA ExtraGalactic Database) - http://nedwww.ipac.caltech.edu/
nMod nBody Modelling Toolkit - http://code.google.com/p/nmod/
NightCal - http://www.nightcal.co.uk/
 - (if home page down) http://download.cnet.com/NightCal/3000-2054_4-10444283.html

Open Universe (predecessor to Celestia) - http://www.openuniverse.org/
Orbiter (space flight simulator) - http://orbit.medphys.ucl.ac.uk/
Orion (emulator req) - http://www.skymapper.co.uk/html/download_zone.html
Our Solar System = Solar System 3D Simulator

Planetarium (online) - http://www.exploratorium.edu/neverlost/#/navigation/planetarium
Planet's Orbits (Rainer Lange) now - Planetary, Stellar and Lunar Visibility
Planet's Visibility - now = Planetary, Stellar and Lunar Visibility
PP3 (chart maker) - http://pp3.sourceforge.net/
Previsat (Satellite viewer) - http://previsat.sourceforge.net/

Q++ Sun, Moon & Planets Calculator - http://www.qppstudio.net/freeware/qpp_astro_freeware.htm

Resolution - http://www.xs4all.nl/~sahjps/astro.html
RIYAL - http://www.expreso.co.cr/centaurs/riyal.html

Sat Explorer - http://www.f1orl.org/satexG.htm
SETI (analyse radio telescope data) - http://setiathome.ssl.berkeley.edu/
- Msetimon (manager) - http://msetimon.sourceforge.net/
- Seti Monitor (nfohp) - http://download.cnet.com/SETI-Monitor/3000-2054_4-8604335.html
Sky Calendar - http://www.skycalendar.com/skycal/index.html
Sky Charts = Cartes du ciel
SkyOrb - http://www.realtech-vr.com/skyorb/
Sky View - http://skyview.gsfc.nasa.gov/
Solarization - http://www.thomastsoi.com/computer/
Solar Model - http://www.ffsoftworks.com/solarmodel.php?show=downloads
Solar System 3D Simulator - http://www.sciencefair-projects.org/solarsystem/solar-system.html
Solar System Simulator - http://space.jpl.nasa.gov/
Space Weather (online Info) - http://spaceweather.com/
SPC (Sun Position Calculator) - http://phys.ubbcluj.ro/~zneda/suncalc/spc.html
StarCalc - http://www.m31.spb.ru/StarCalc/main.htm
StarCat - http://www.precisionstrobe.com/jc/starcats/starcats.html
StarGaze - http://www.skymapper.co.uk/html/download_zone.html
Starmap (java planetarium) - http://www.precisionstrobe.com/jc/starmap/starmap.html
Starmap (Spanish) - http://www.arrakis.es/~abelp/
Starmax - http://ggrillot.free.fr/home.html
Starry Night Interactive Sky Chart - http://www.starrynighteducation.com/index.php
Stellaris (shareware) - http://www.stellaris-software.com/about.htm
Stellarium - http://www.stellarium.org/
Stellarium portable - http:\\portableapps.com
Sun & Moon World Map - http://www.mcrenox.com.ar/downloads/
SunCycle - http://users.telenet.be/suncycle/
SunTimes - http://www.aptl72.dsl.pipex.com/suntimes.htm

The Astrolabe (info) - http://www.astrolabes.org
The Eight Planets (was 9 Planets - online) - http://www.nineplanets.org/

Unimap - http://larryo.org/work/information/index.html

Variable Stars Observer - http://astrosurf.com/astropc/varobs/
Virtual Moon Atlas - http://ap-i.net/avl/en/start

Where is M13? - http://www.thinkastronomy.com/M13/index.html
WinJupos - http://www.grischa-hahn.homepage.t-online.de/astro/winjupos/index.htm
WJO Polar View - http://www.itslifejim.btinternet.co.uk/DawesAstro/software.htm
WJO What's Up - http://www.itslifejim.btinternet.co.uk/DawesAstro/software.htm
World Size Comparison - http://www.rense.com/general72/size.htm
Worldwide Telescope - http://www.worldwidetelescope.org/Home.aspx

Your Age on Other Words - http://www.exploratorium.edu/ronh/age/
Your Weight on Other Worlds - http://www.exploratorium.edu/ronh/weight/index.html

Zindaiji - http://www.cfca.nao.ac.jp/~takedatk/COMPUTER/ZINDAIJI/MANUALS/JINDAIJI_E/ManualVer00_E.html


Links
Astronomy in Your Hands (educational) - http://www.astronomyinyourhands.com/activities/activitiesbrowser.cgi

---------
Satellite

Dreambox Tools - http://www.sathunter.com/dreamboxtools.php
FastSatFinder (online - Google Earth plugin req) - http://www.fastsatfinder.com/satellite_finder.html
Footprint (tracker) - http://myweb.tiscali.co.uk/wxsatellite/footprint.htm
GPredict - http://gpredict.oz9aec.net/
LonLat2dat - http://www.satsignal.eu/software/mapping.htm
 - Mapping Tools - http://www.satsignal.eu/software/mapping.htm
OnTrack - http://www.movingsatellites.com/
Satscape (tracker) - http://www.satscape.co.uk/main/modx/
Satellite Antenne Alignment - http://www.al-soft.com/saa/satinfo.shtml
SatExplorer (visibility) - http://www.f1orl.org/satexG.htm
Spica (tracker) - http://reocities.com/SiliconValley/code/7659/welcomee.htm
STSplus - http://celestrak.com/software/dransom/stsplus.html
View From Satellite - http://www.fourmilab.ch/earthview/satellite.html
WinOrbit (tracker) - http://www.sat-net.com/winorbit/
WXTrack - http://www.satsignal.eu/software/wxtrack.htm


Info

ETOPO2 - http://www.ngdc.noaa.gov/mgg/fliers/06mgg01.html
 - http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO2/ETOPO2v2-2006/
ETOPO5 - 
GTOPO30 (heights) - ftp://edcftp.cr.usgs.gov/pub/data/gtopo30/global/
GSHHS & GMT (shorelines) - http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html
Weather Satellite Tools & Info - http://www.satsignal.eu/software/wxsat.htm


Software

BinoPlan (optics spacing) - http://www.skyandtelescope.com/resources/software/3304921.html?c=y&page=3
Gravity Simulator - http://www.orbitsimulator.com/gravity/articles/what.html
Iris (image processor) - http://www.astrosurf.com/buil/us/iris/iris.htm
Maxclocks - http://www.umark.de/maxclock_main_e.html
NASA MathTrax - http://prime.jsc.nasa.gov/mathtrax/
Network Telescope Control (hpnf) - http://download.cnet.com/Network-Telescope-Control/3000-2054_4-10428056.html
RegiStax (stack images to improve clarity) - http://www.astronomie.be/registax/
StarTrails - http://www.startrails.de/html/software.html
TUMOL (Messier Object Log) - http://www.davidpaulgreen.com/software.html
 also (OOlog Overlooked Object ;TEC Eyepiece Calculator ;TCOL Caldwell Object Log ;TSOL Simple Observing Log)
WJO ATM Designer (telescope) - http://www.itslifejim.btinternet.co.uk/DawesAstro/software.htm
WJO Time (clock) - http://www.itslifejim.btinternet.co.uk/DawesAstro/software.htm