Astronomy Free Download


300 Science Quizzes

This software: 150 Capital city quizzes, 120 Chemistry and Periodic Table quizzes, 20 Astronomy picture-quizzes and 10 questions about the speed of light for middle and high school students. Education freeware 300 Science Quizzes is listed in science, kids, chemistry, geography tools.

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Software that is an exciting, entertaining, and educational astronomy program that transforms your personal computer into your personal planetarium. CyberSky provides an excellent way to learn about astronomy and to explore the wonders of the sky visible in the distant past, the present, and the far-off future.

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Adastra Plus

Software that is a complete astronomy experience, with real-time sky, comprehensive reports, arcsecond accuracy, and exciting events such as animation and live orbital tracking. Two encyclopedic reference sources interactively link to the sky display, with planets, comets, asteroids, DSOs, and a multitude of stars. Let Sky Quiz quickly build familiarity with your local sky, as TimeLine shows the effects of precession through the millennia...

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Orbit Xplorer

Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Easily create, run, print and save a simulation. Includes 29 premade simulations with activities page in html-format. Orbit Xplorer is a shareware software filed under science, physics, astronomy utilities.

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3D Solar System Screensaver

Solar System is a fully 3D environment screensaver which serves both the screensaver and an educational astronomy program. This screensaver views all planets of our solar system on your desktop. You can set different cameras to view whole solar system. Included is also an informative mode which makes you able to see more details about all planets. Optional is also an arrangement of planets relative or realistic orbit with lovely background music

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Desktop Dozen

This office and business application is an award-winning collection of 12 business-oriented productivity tools. Includes Postage Calculator, Time Calculator, Date Calculator, Alarm Clock, Area Code Finder, Zip Code Finder, Astronomy Calculator, State Abbreviation Tool, Perpetual Calendar, Measurement Converter, Stopwatch, Printing Calculator. You have the option to view them as skinned windows, or with the standard Windows interface. Very handy and a great value!

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Coeli - Stella 2000

Complete astronomy software suite exploring realistic skies in real time, with observing log, Sky Quiz, Live Orbits (orrery), telescope support, spoken pronunciation guide, a half-million word Encyclopedia Astronomica, and concentrated searches embracing planets, comets, asteroids, DSOs, and up to 300,000 stars.

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Click Clock

Animated weather radar & satellite, local temperature in tray, local weather, internet clock sync, sun and moon rise and set times, animated moon phases, planet positions in the sky, eclipses, equinox/solstice, meteors, month calendar with moon phase icons, full year calendar, 27 holidays, map, aerial photo, topographic map, start & end daylight savings, dictionary, thesaurus, calculator, unique graph of sunrise and set times for entire year. Utilities shareware Click Clock is listed in clocks, alarms, calendar, clock, weather, science, astronomy tools.

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This game gets you up close and personal with your own crew of astronauts who live and play in outer space! Build your own International Space Station with loads of modules and cool components, but look out for that bumbling space tourist! SpaceStationSim is a demo software filed under games, simulations utilities.

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MaterialWorlds Simulations

Live interactive physics simulations let you explore the Solar System (orbits, seasons, gravity, tides, comets and satellites), play snooker and experiment with Laws of Motion, bridge,crash,ideal gas,pendulum clock and siege engine simulations. This education shareware MaterialWorlds Simulations is categorized under games, simulations, experiments, science education.

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Khi 3

Advanced math, finances, currencies, stats, combinative, dates, curves, series, units and calendars conversions, astronomy, geometry, pi, chemistry, electricity. Divx Calculator. Games on gravitation, billiards... Khi 3 is a freeware software filed under calculatrices utilities.

Awesome Deep Space Screen Saver

A photo slideshow screen saver with beautiful images of deep space objects by the Hubble Telescope. All images are scaled for 800x600 (1024x768 also available). Other features include transition effects, black and white mode, password use, and extract photos as wallpaper, including built-in wallpaper cycling every hour or every day. This 5-photo Lite version is free, the Gold Edition has 42 photos and may be purchased at Awesome Deep Space Screen Saver is a shareware software filed under screen savers, desktop, space utilities.

Chinese Calendrics

A program to convert between dates in various Chinese calendars and dates in the Gregorian and Julian calendars, and to find lunar new year's day and leap months for any year. Supports 60-year and 60-day cycles, includes Chinese names, and allows searching for dates and times of full moons, dark moons, solar terms, equinoxes, solstices and more.


Software that is a software planetarium that utilizes the latest in 3D-technology in order to show you not only the planets and satellites of our solar system, but also galaxies, nebulas, and hundreds of thousand of stars - in real-time 3D. This home/hobby shareware StarStrider is categorized under astronomy, educational, science, simulators.


Astronomy software, shows you the complete night sky (340,000 stars) and our solar system in a 3D orrery view with the planets, asteroids, and comets from any place at any time. Many animation options, printing. Home/hobby demo EasySky is listed in education tools.

New Frontiers

This CD-ROM celebration of space is the premier outer space screensaver and photo collection, including over 400 full-color NASA photographs from historic satellite, orbital and lunar missions. New Frontiers is a shareware software filed under screensavers utilities.

ESBPCS for VCL - Components and Routines

ESBPCS for VCL is a collection of over 6000 routines/methods and over 235 classes/components in over 140 units for Borland Delphi 5, 6, 7, 2005/Win32 , BDS2006/Win32 and Turbo Delphi Pro for Win32, which are aimed at making "data entry and manipulation easier" for Developers and their Customers. Includes full source to all components and routines.

Cosmic Voyage

A stunning and mesmerizing 3D screensaver that takes you on a never-ending voyage into the depths of Space. Soar past stars and nebulae and experience the wonders of the Universe ! Marvel at the never-repeating beauty of this visual feast. Cosmic Voyage is licensed as shareware and placed in 3d screen savers, desktop enhancements section.

Chronos Atomic Clock Synchronizer

This internet tool is a utility for people who need their computers to use exact time. The program connects to various atomic clock timeservers and synchronizes your internal clock with time provided by these servers. Key benefits: connects on many atomic clock time servers; you can add any time server needed; improved algorithm to calculate differences between servers; calculates delays and synchronize on less than 0.1 seconds


This tool converts dates to Gregorian, Islamic, Julian, Hebrew and Chinese dates and back. Thus, you get all these calendars into a one simple-of-use calendar. Just pick a date and you get the corresponding dates on the other calendars! HiCalendar calculates the Easter and Pesach dates for any year between 999 AD and 2399 AD. You may use speed buttons to quickly select a date: New year Day, Christmas, Palm Sunday, Whitsun... Utilities shareware HiCalendar is listed in calendar, desktop tools.

365 Deep Space Screen Saver

This space screensaver jam-packs over forty MESMERIZING PICTURES of star clusters, spiral galaxies, planetary nebulae, radiant supernovae, magellanic clouds and more. Let your imagination soar as you uncover the mysteries of the universe! Screen Savers shareware 365 Deep Space Screen Saver is listed in desktop screen savers science tools.

Dovada student calculator

The Dovada student calculator is ideal for use in the school, home, office or engineering and scientific research centers, anywhere mathematical or physics information is continually used or required, The Dovada student calculator has hundreds of science, astronomy, physics data and mathematical formulae built in and can be easily accessed and used in calculations. No longer do you have to search the text books for that common formula or data.


Combine multiple sights using a a voyage plan. The comprehensive list of bodies extends beyond Barnard's Star and includes the best constellation outlines available. Data available between 9999BC to 9999AD includes Eclipses, Moon phases, Star Charts and Twilights. It will even print conventional Nautical Almanac pages as backup while the voyage plan is a sophisticated tool in its own right. This home/hobby shareware AstroNav is categorized under home, hobby astronomy.


This internet software? is exciting new Windows? software that lets you find, organize and share all the events that matter in your life. This freeware is archived under calendar, schedule category.

365 Hubble Telescope Screen Saver

Launch yourself into orbit and discover the WONDERS OF SPACE through the eyes of the world-famous Hubble Space Telescope. This space screensaver includes over forty INCREDIBLY DETAILED IMAGES of spinning galaxies, colorful nebulae, distant supernova remnants, solar system planets, and other amazing celestial bodies. Take your mind to the heavens every time your computer is left idle! Use any screen saver image AS YOUR DESKTOP BACKGROUND too. Screen Savers shareware 365 Hubble Telescope Screen Saver is listed in desktop screen savers science tools.

Solar System 3D Simulator

This software is a FREE software application that generates a realistic solar system model and planets in 3 Dimension on the PC using advanced physics formulas. It can display the planets and their orbits, the sun and the moon. The nine planets including planet earth and their detailed physical & chemical information and image pictures is also displayed including solar power, solar energy and solar eclipse details.

Gravitorium Pro

A very useful tool for teaching physics and astronomy. Play with ideas about gravity and gravitational systems. This gravitational simulator is not intended to be a highly accurate solar system simulator, at low speeds its accuracy is really pretty good. And, best of all, it lets you "play universe maker". Throw in a few extra planets, add a black hole, set a comet plunging towards the Earth! Or create an entirely new solar system from scratch.

Deep Space Video

A unique and beautiful screensaver featuring live NASA video from Deep Space. Every time the screensaver runs it will connect to a NASA Deep Space Probe Admin server and locate an available video feed, providing you with a wonderful moving view of nebulae, stars and the cosmos.

Moon Phase Oracle 2006 - Premier Version

Maximize your chances of successful Fishing or Hunting using the next generation of Solunar Prediction Software. Also suitable for Astronomy, Gardening and Photography.

World Almanac

The World Almanac displays solar and lunar data for every 30 minutes throughout the day in addition to the times of rise, set and twilight. The phases of the moon and solar illumination are also calculated. Up to 18 locations can be created to include the height of the user and the summertime data. Although this software was specifically designed for somebody with a camera, it will also appeal to astronomers, fishermen, gardeners and the family

Stars and Galaxies in 3D

Real stars and galaxies in 3D color. Easy to use. 9,000 stars and 2,400 galaxies. Select stars by magnitude, distance, or spectral type. Displays known planetary star systems. Find stars and galaxies by name and fly to them with a keypress. Stars and Galaxies in 3D is licensed as shareware and placed in science, astronomy, games, graphics, simulation, education, astrophysics, home, hobby section.

IC Capture.AS - FireWire Camera Control Software for Telescopes

IC Capture.AS is authored by The Imaging Source and has been specifically designed for use with telescope cameras. The software ships with all the telescope cameras sold on the web site. This home/hobby commercial IC Capture.AS - FireWire Camera Control Software for Telescopes is categorized under home, hobby astronomy.

AstroGrav (Mac)

Astronomy software to simulate how astronomical objects move and interact under the force of gravity. It features superb interactive 3D graphics which allow you to move around within a many-body astronomical system, while watching how it evolves. This utilities shareware AstroGrav (Mac) is categorized under education science.


This software displays a graphical world clock with a dynamic map image of the world showing the day and night areas, a sundial, and an information panel featuring sunrise/sunset times and much more -- all in real-time or time-lapse animation. Education shareware EarthWatch is listed in education, science, astronomy, travel tools.

StarMessage - Night sky screensaver

StarMessage may become the favorite software for the astronomer, the dreamer and the romantic fool. It shows the current moon phase, inside the starry sky. You may leave short messages on the screen, and the stars will move to form the messages. StarMessage - Night sky screensaver is a shareware software filed under space, astronomy, romance, quotes, fun utilities.

Canadian. Almanac

The Canadian Almanac displays solar and lunar data for every 30 minutes throughout the day in addition to the times of rise, set and twilight. The phases of the moon and solar illumination are also calculated. This miscellaneous shareware Canadian. Almanac is categorized under photography, astronomy.


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