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This program shows a map of the sky from any point on the earth.

This program provides a wealth of information about the tides (duration, coefficients, high tide, low tide… etc) for different ports. It is a useful program for fishermen, divers etc.. Additional ports can be downloaded and added to the program’s port-list.

SETI Monitor is a free add-on for SETI@home (a scientific experiment that uses Internet-connected computers in the Search for Extraterrestrial Intelligence (SETI)).

A full-featured weather science utility that performs weather calculations and conversions.

An interactive astronomy software for observing and exploring the skys in real time.

An interactive, educational program for exploring the orbits of satellites, planets, moons and stars. Suits high school, college and university students and teachers.

Provides information about the moon and, to a lesser degree, the Sun, This program will graphically display the current phase of the moon in real time. Version 2.70 now provides Sun and twilight information as well as data for the …

A fun solar system simulation program. SimSolar will display the positions of the sun, moon and planets for any specified date. The entire system can be tilted or rotated so as to be viewed from all angles. You can search …

A desktop planetarium. Starry Night Backyard is designed for anyone with an interest in the night sky. Allows you to see the sky from anywhere on earth, look at Jupiter from one of its moons, track satellites, asteroids and comets….etc.. …

A planetarium software. CyberSky is an astronomical software for observing the sky on your computer. It displays accurate charts of the sky as seen from any location on the earth. Has a user-friendly interface and many features.