Opulus is a planet.

Fiction

2005 IDW continuity

It is orbited by the Autobot Orbital Command Hub.^[1]

Animated cartoon continuity

Opulus was a robotic planet in the Autobot Commonwealth. The AllSpark Almanac II

Beast Wars: Uprising

Opulus was one of the ten Cybertronian colonies within the Allowed Zone. Following the Scouring of Nebulos, Autobots and Decepticons alike battled for control of Opulus's wealth. A Brush With Infamy–Prologue

References

1. ↑ According to Simon Furman's blog.