Allowed star frequency creation evolves in time according to the Galaxy size:
Between 0 and 50 stars: 1 new star per IP address per hour
Between 50 and 100 stars: 1 new star per IP address every 2 hours
Between 100 and 500 stars: 1 new star per IP address every 4 hours
Between 500 and 1000 stars: 1 new star per IP address every 12 hours
More than 1000 stars: 1 new star per IP address every 24 hours