Download astronomical software
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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 in the Chinese Calendar.
RRs Unit Converter
Universal unit converter and dictionary with a database that contain over 1000 units. From Biblical to Astronomical. User defined simple and compound units.
Srimad-Bhagavatam 1.1 (Pdf)
Canto 1, Part 1, of twelve cantos total. By His Divine Grace A.C. Bhaktivedanta Swami Prabhupada. This epic philosophical and literary classic of India touches upon all fields of human knowledge.
Kairon 3.5
Mac OS X 10.3+ astrology calculation software with SwissEphemeris and ACS Atlas multiple fonts, 21 Anayamsas, 21 aspects, over 11400 asteroids, over 300 editable arabic points, 18 house systems, graphic ephemeris, profections, firdaria, midpoints,...
AstroGrav (Windows)
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.
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.
Coeli - Stella 2000
Complete astronomy software suite exploring realistic skies in real time, with observing log, Live Orbits, Sky Quiz, spoken guidance, A-Z encyclopedia, and a concentrated search embracing planets, comets, asteroids, DSOs, and 300,000 stars.
Julian Day Converter
This utility can convert a gregorian date into julian day format/Modified Julian Day format and vice versa. The Julian Day Format counts the day since the 24th november -4713bc.
ActiveEarth
ActiveEarth is a world time clock with a gorgeous day/night merge of NASA's earth images in maps or a globe. It has accurate time zone data for more than 500 cities, atomic time sync, countdown clocks, scalable analog clocks, screen saver, and more!
Planets of the Solar System Screensaver
This screensaver is a series of pictures of the solar system. Every planet is there along with its satellites and basic scientific description. Sheer beauty with educational effect for kids and adults!
PalmaryCalc
PalmaryCalc from a simple to a scientific calculator with different input methods, conversion functions, credit, base number conversions, integer math calculations , logical and bit-manipulation operations, currency conversion
Galaxy 3D Space Tour
The Galaxy...a great cosmic island containing about two hundred billion stars and nebulas. This screensaver simulates such a fantastic space scene with maximum realism using modern 3D technologies and the latest astronomical knowledge.
Keno Expert USA
Keno Expert USA is a professional and powerful tool designed to calculate combinations for Keno Games. It's the ultimate software you have to try to improve your chances of winning and get the best out of your bet !
Kairon 3
Mac OS X 10.3+ astrology calculation software with SwissEphemeris and ACS Atlas multiple fonts, 21 Anayamsas, 19 aspects, over 11400 asteroids, over 300 arabic points, 14 house systems synastry,composite,combine,transits,harmonics,progressions,returns,...
Date Calculator
Performs various calendar related calculations. Displays calendar for any month of any year. Calculates number of days between any two dates, date X days from any date. Apointment reminder.
Mars 3D Space Tour
Mars is a single planet, possible to colonize in nearest future... World of greatest hurricanes, endless red deserts, highest mountains and frozen water resources. Screensaver features true photo-realistic 3D-animated space scenes from Martian orbit.
Moon 3D Space Tour
Pretend you're an astronaut and circle the moon from the comfort of your own desk with this screensaver. Watch as the moon appears before you, complete with real craters and mountains. OpenGL 3D rendering engine provides true photo-realistic quality.
Earth 3D Space Tour
This screensaver will impress you by photo-realism of 3D animated space scenes. Fly around our planet, amaze yourself by beauty of cosmic sunrises and sunsets. Each frame of this endless arbitrary animation looks almost like best NASA photos!
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!
GeoDataSource World Structural Features Database (Gold Edition)
GeoDataSource Structural Database Gold Edition contains city names, feature type classifications, country names in FIPS and ISO, regions, sub-regions, state, county, longitude and latitude in degree and decimal, UTM coordinate grid and JOG reference.
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 in the Chinese Calendar.
RRs Unit Converter
Universal unit converter and dictionary with a database that contain over 1000 units. From Biblical to Astronomical. User defined simple and compound units.
Srimad-Bhagavatam 1.1 (Pdf)
Canto 1, Part 1, of twelve cantos total. By His Divine Grace A.C. Bhaktivedanta Swami Prabhupada. This epic philosophical and literary classic of India touches upon all fields of human knowledge.
Kairon 3.5
Mac OS X 10.3+ astrology calculation software with SwissEphemeris and ACS Atlas multiple fonts, 21 Anayamsas, 21 aspects, over 11400 asteroids, over 300 editable arabic points, 18 house systems, graphic ephemeris, profections, firdaria, midpoints,...
AstroGrav (Windows)
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.
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.
Coeli - Stella 2000
Complete astronomy software suite exploring realistic skies in real time, with observing log, Live Orbits, Sky Quiz, spoken guidance, A-Z encyclopedia, and a concentrated search embracing planets, comets, asteroids, DSOs, and 300,000 stars.
Julian Day Converter
This utility can convert a gregorian date into julian day format/Modified Julian Day format and vice versa. The Julian Day Format counts the day since the 24th november -4713bc.
ActiveEarth
ActiveEarth is a world time clock with a gorgeous day/night merge of NASA's earth images in maps or a globe. It has accurate time zone data for more than 500 cities, atomic time sync, countdown clocks, scalable analog clocks, screen saver, and more!
Planets of the Solar System Screensaver
This screensaver is a series of pictures of the solar system. Every planet is there along with its satellites and basic scientific description. Sheer beauty with educational effect for kids and adults!
PalmaryCalc
PalmaryCalc from a simple to a scientific calculator with different input methods, conversion functions, credit, base number conversions, integer math calculations , logical and bit-manipulation operations, currency conversion
Galaxy 3D Space Tour
The Galaxy...a great cosmic island containing about two hundred billion stars and nebulas. This screensaver simulates such a fantastic space scene with maximum realism using modern 3D technologies and the latest astronomical knowledge.
Keno Expert USA
Keno Expert USA is a professional and powerful tool designed to calculate combinations for Keno Games. It's the ultimate software you have to try to improve your chances of winning and get the best out of your bet !
Kairon 3
Mac OS X 10.3+ astrology calculation software with SwissEphemeris and ACS Atlas multiple fonts, 21 Anayamsas, 19 aspects, over 11400 asteroids, over 300 arabic points, 14 house systems synastry,composite,combine,transits,harmonics,progressions,returns,...
Date Calculator
Performs various calendar related calculations. Displays calendar for any month of any year. Calculates number of days between any two dates, date X days from any date. Apointment reminder.
Mars 3D Space Tour
Mars is a single planet, possible to colonize in nearest future... World of greatest hurricanes, endless red deserts, highest mountains and frozen water resources. Screensaver features true photo-realistic 3D-animated space scenes from Martian orbit.
Moon 3D Space Tour
Pretend you're an astronaut and circle the moon from the comfort of your own desk with this screensaver. Watch as the moon appears before you, complete with real craters and mountains. OpenGL 3D rendering engine provides true photo-realistic quality.
Earth 3D Space Tour
This screensaver will impress you by photo-realism of 3D animated space scenes. Fly around our planet, amaze yourself by beauty of cosmic sunrises and sunsets. Each frame of this endless arbitrary animation looks almost like best NASA photos!
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!
GeoDataSource World Structural Features Database (Gold Edition)
GeoDataSource Structural Database Gold Edition contains city names, feature type classifications, country names in FIPS and ISO, regions, sub-regions, state, county, longitude and latitude in degree and decimal, UTM coordinate grid and JOG reference.
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