Hadean System

The Hadeen System, or the Cybertronian System, is a star system centered around the star Hadeen. In some universal streams, it is the location of the Transformers' homeworld, Cybertron.

The AllSpark Almanac
The many planets of the Hadeen System were colonized over 6 billion years ago by the Cybertronian race. As the name implies, the star at the center is Hadeen. The Hadeen System lies within the Milky Way Galaxy.

Celestial bodies

 * Hadeen
 * Thrush
 * Tsathoggua
 * Eibon
 * Dread
 * Westenra
 * Cybertron
 * Moonbase One
 * Moonbase Two
 * Belegaer
 * Galleon
 * Mina
 * Thuvia
 * Kerchak
 * Kala
 * 221B
 * Aouda Fogg
 * Ayrton
 * Thulsa Doom
 * Dun Scaith
 * Bit-Yakin
 * Gwahlar
 * Thugra Khotan
 * Thoth-amon
 * Yag-Kosha
 * Numedides
 * Frehley's Comet
 * Botropolis
 * Autobot Mausoleum

IDW Generation 1 continuity
Arduria was noted as being a dozen parsecs away from the Cybertronian System.