Windows Vista

Watch Nasa TV including live space shuttle launches and space walks plus all the Sky at Night programs from December 2001 up to the current episode over the internet plus view live solar images and get ISS (international space station) and satellite pass predictions for your location.

Read more -->

AstroGrav is astronomy software that allows you 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 with the passage of time. A wide variety of sample files are provided, and comprehensive editing facilities allow you to create and modify your own astronomical systems.

Read more -->

The prime purpose of Gravitorium is to let you play with ideas about gravity and gravitational systems. While it's 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.

Read more -->

Using the same standards of accuracy as published tables but with a catalogue extending beyond Barnard's Star; it can be used to combine multiple sights, a definative astronomical reference or simply to print daily Nautical Almanac pages.

Read more -->

StarStrider is a fully three-dimensional planetarium and 'software star ship'. You can visit not only the planets and moons of our solar system, but also hundreds of thousands of other stars. And you can view spectacular galaxies, cluster, nebulae and the milky way! Relativistic space-time effects such aberration and Doppler shift are optional. Requires a 3D-card. Anaglyph 3D-glasses (for true '3D stereo') and joystick or game pad are optional.

Read more -->

Real stars and galaxies in 3D and full color. Move and look in any direction. Easy to use with keyboard shortcuts and presets. 9,000 stars (all visible stars, plus lots of nearby dim stars) and 2,400 galaxies. Displays known planetary star systems. Find stars and galaxies by name and fly to them with a keypress. Select stars by magnitude, distance, or spectral type. Select galaxies by distance or group. Has an outline of our galaxy.

Read more -->

Complete 2010 Nautical Almanac in pdf format. Includes star charts with the planet's positions for each month.

Read more -->

Complete 2011 Nautical Almanac in pdf format complete with monthly star charts. Includes Parallax corrections for the planets which are not normally available.

Read more -->

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 introductory to advanced premade simulations with activities page in html-format. Uses actual pictures of planets. Plot orbits in a plane or in 3D. View time, distances, speeds, accelerations and energies as they change. Zoom and change parameters during the simulation.

Read more -->

Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Easily create, run, print and save a simulation. Includes 30 introductory to advanced premade simulations with activities page in html-format. Uses actual pictures of planets. Plot orbits in a plane or in 3D. View time, distances, speeds, accelerations and energies as they change. Zoom and change parameters during the simulation.

Read more -->

Alcyone Ephemeris is an accurate and fast astronomical ephemeris calculator covering the period 3000 BC to AD 3000. It calculates heliocentric, geocentric, and topocentric positions of the Sun (Earth), Moon, planets, small bodies (asteroids, comets), and fixed stars in ecliptical, equatorial, and horizontal coordinates (including angular differences between two bodies), with optional corrections for parallax and refraction.

Read more -->

A program to convert between dates in Chinese, Vietnamese and Japanese lunar 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 Asian calendars. Can list anniversaries of lunar dates such as birthdays. Supports 60-year, 60-month and 60-day cycles, and allows searching for dates and times of full moons, dark moons, solar terms, equinoxes, solstices and more.

Read more -->

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.

Read more -->

EarthWatch displays a beautiful graphical world clock with a dynamic map image of the world showing the day and night areas, time zone hours, a sundial, and an almanac information panel featuring sunrise/sunset times, lunar phase information, and much more -- all in real-time or time-lapse animation.

Read more -->

CyberSky is an accurate, yet easy-to-use planetarium program that provides an excellent way to learn about astronomy and explore the sky visible in the distant past, the present, and the far-off future. CyberSky can display and print attractive, highly-customizable maps of the sky as seen from your home, your favorite vacation spot, or any other location on the Earth.

Read more -->

Live interactive physics simulations let you explore the Solar System (orbits, seasons, gravity, tides, satellites and comets), play snooker (on a full size table) and experiment with Laws of Motion simulations. Now with machines ( pendulum clock and siege engines) bridge, crash and ideal gas simulations and experiments.

Read more -->

Solar System 3D Simulator 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.

Read more -->

This shows the position of the sun and moon for any place on earth between 1900 and 2049. It can show the sun or moon for any day or the horizon which can be rotated 360 degrees and animated. A database of over 1600 locations is included which includes the name, latitude, longitude and time zone for Australasia(Australia/New Zealand), Canada, U.K. and U.S.A. Users can easily create their own database of locations.

Read more -->

Observe STUNNING ASTRONOMICAL OBJECTS through the infrared eyes of the NASA Spitzer Space Telescope. This space screensaver is jam-packed with over forty MESMERIZING PICTURES of star clusters, spiral galaxies, planetary nebulae, radiant supernovae, flying comets, star forming regions, magellanic clouds and more. Let your imagination soar as you uncover the mysteries of the universe! Use any screen saver image AS YOUR DESKTOP BACKGROUND too.

Read more -->

Chronos Atomic Clock Synchronizer 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.

Read more -->