The Celestian Guard is a Codex Astartes-compliant Loyalist Space Marine Chapter of unknown Founding and origin. Almost nothing is known about this Chapter in Imperial records other than its participation in the Lycanthos Drift Campaign.
- Lycanthos Drift Campaign (780.M41) - In the aftermath of the long-running and infamous Fourth Quadrant Rebellion, the Celestian Guard answered the general call to arms among the Astartes of the region and undertook the Lycanthos Drift Campaign in 780.M41, against one of the last major stronghold star systems of the revolt located to the galactic south of the Maelstrom Zone. At the gathering of Imperial forces Astral Claws Chapter Master Lufgt Huron was elected battle leader of a number of Astartes contingents by common consent of a mixed taskforce comprising companies from the Astral Claws, Celestian Guard, Fire Hawks and White Scars Chapters, backed by the Death Korps of Krieg and Cal-Sec Imperial Guard Regiments and the Titans of Legio Venator. Under Huron's inspired command the taskforce ruthlessly purged the heavily fortified system of Traitor and Chaos forces in under a year.
The Celestian Guard's Chapter colours are not listed in current Imperial records.
The Celestian Guard's Chapter badge is not listed in current Imperial records.
- Imperial Armour Volume Nine - The Badab War, Part One, pp. 17, 59