Planet ID
From Astro Wars
Planets are numbered within each system. The planet's number is its Planet ID, and is used when launching fleets. Planet IDs will always be numbered 1 through 12. Some Systems may have fewer than 12 planets when they are first created; this is due to the amount of players in that system.
Each time a player joins the game, he or she is allocated a Home Planet to start on, and two adjacent planets are created as Free Planets in that system. Should another player join the game, three more planets will be added to the system, and so on, up to the maximum of four players and twelve planets.
Notes
If a player should resign or be defeated, his or her planet(s), and any additional 'free planet'(s) will remain in the system. Planets once owned by a resigned player will be marked Unknown, and will retain any buildings or fleet already present.
