From Wardrome English Wiki
A Star system is formed by a central star and a random number (0-6) of planetary orbits surrounding it. Using the Genesis device it is possible to create a planet for each free orbit. The number of orbits is randomly determined at the creation of the Galaxy and remains the same during the next rounds, until the admin decides to reset the whole galaxy from scratch. Destroying a planet doesnt free the orbit it was in.
The link Star System in the left game menu brings up the main screen.