The Star Beacon can be found on Star Reach Island, and unlocks at level 17. After you find it, you can move it to Home Island.
The first time you upgrade the Star Beacon you will need a variety of items. To make further upgrades you will need to complete quests.
To learn more about the Star Beacon, check out the guides on our official Facebook group.
For more information on crafting, crafting stations, and buildings, check out the Crafting Stations section.