SC2Mapster

Every planet has randomly generated stats, each planet can have only 1 colony.
Resouce presence will determine the mining from its resource.
Habitability will increase the population growth on the planet, you cant have more than 100% habitability on a planet.
At the start, your colony population will grow faster until it reaches the "planet radius/2+30000" population, after that your population wont have so much free land on the planet to expand, so it will grow less fast.
Each planet has its own resources, if you want to use them up on different planet you need a tranport ship to transport them. However minerals can be used up instantly on any planet. You can see how much resources you have on your planet at top right side of the screen. You can read more about each guide in Help(F12)