Moving starbases

Click on your starbase overview page, than the Move tab link

There you will find the coord field to its destination, also it will show this lines:

You have to wait or cancel all ongoing construction, production and research.
The starbase will be unusable (no construction, production or research) while moving.
Your starbase moves at speed 0.01 lightyears * aerospike tech level.
You cannot recall it after launched!
You cannot move it to another galaxy.