Autobot Orbital Command Hub

The Autobot Orbital Command Hub is an Autobot-manned spacestation in the Generation 1 continuity family.

Planet Butterscotch Swirl, maybe?

The Autobot Orbital Command Hub is the central base of Autobot operations in their galactic war against the Decepticons. A massive spacestation, it orbits an unknown planet.

It is on the Hub that Autobots unassigned to warfront planets are stationed, waiting on-hand in the event that they'll be needed. From these Autobots a crew can be assembled quickly to man one of the Arks.

Fiction

IDW comics continuity

A priority pulsewave from Earth reached Optimus Prime on the Hub Stormbringer, Part 1 just moments before a message buoy was received from the Calabi-Yau. He gathered Autobots from the Hub to crew the Ark-27 and left for Cybertron. Stormbringer, Part 2

From Teletraan I: The Transformers Wiki, a Wikia wiki.