Full version, without limitations, up to 25 optical surfaces.

This program will not let you down, neither will he run you mad trying to figure out how to plot a chart amidst piles of menus and options... as many may.

It was idealized to naked eye observation and it draws stars until mag 5, the brightest planets and the most popular Messier objects - a frugality inversely proportional to its speed.

Buttons are provided to give you quick access to the local horizon on all cardinal points, and ephemeris of the Sun, Moon and planets are also offered. Additionally you may choose to input new objects, such as comets. A summary table of daily events and a tool to find planetary conjunctions complete the set.

This is the DOS version. A newer Windows version is equally available.

It offers a 3D model of the closest 2368 galaxies and an animation of a guided visit where, step by step, an explanation is provided on the organization and structure of the nearby universe

Runs under DOS and or Windows

. to analyze one or more satellites over a given period;
. to classify by chronological order the passes obtained for this period;
. to visualize the movements of a satellite around an Earth globe;
. to visualize the movements of a satellite in the sky from any location;
. to see a pre-prepared demonstration of the program capabilities;
. to try to identify a satellite seen by chance;
. to read a TLE file of orbital elements and selectively create another only with the satellites you picked;
. to update the files considering the standard magnitudes;
. to store the data for new locations;
. to classify a TLE by order decreasing order of NORAD numbers;
. to analyze the passes of satellites even if they are not visible (useful for radio amateurs).

Data such as a spacecraft's sub-satellite point, azimuth and elevation headings, Doppler shift, path loss, slant range, orbital altitude, orbital velocity, footprint diameter, orbital phase (mean anomaly), squint angle, eclipse depth, the time and date of the next AOS (or LOS of the current pass), orbit number, and sunlight and visibility information are provided on a real-time basis. PREDICT can also track (or predict the position of) the Sun and Moon. PREDICT also has the ability to control AZ/EL antenna rotators to maintain accurate orientation in the direction of communication satellites. As an aid in locating and tracking satellites through optical means, PREDICT can articulate tracking coordinates and visibility information as plain speech.

This is the DOS version. Linux and Sharp Zaurus PDA version are also available.

Suitable to all those who possess a radio receiver and a computer and have an interest in this simple technique of radio astronomy.

Support documentation available in the homepage.

Univers produces image models of the different Universe models/theories (expanding, De Sitter, etc...).

MSA - Millenium Star Atlas gives you the page and volume of this Atlas according to R.A. and Dec.

This is the DOS version. A Windows version is also available.