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Styges I.png
Military Outpost


Ultima Segmentum


Australis Ultima


Cambrius Sub-Sector


Eglurn System


System Capital



Styges I Map.png


Type Standard iron/silicate

Mass 5.83 x 824 kg

Density 8.70 g/cm3

Composition 37.7% iron, 29.0% oxygen, 13.4% magnesium, 10.2% silicon, 2.7% calcium, 5.3% other metals, 1.7% other elements


Gravity 7.92 m/s2

Escape Velocity 11.27 km/s

Rotation Period 31.68 hours

Axis Tilt 18.11 °


Type None

The planets surface is


Iaethea’s only population is on military bases with several imperial Army regiments and Eglurnian Auxiliaries and support staff located here. Food and supplies are obtained from other planets within the Eglurn System.

The planet was never inhabited before The great schism or crusade and has only been utilized as a military staging area late in the great crusade and now into the Horus Heresy. The main bases of the Imperial fists in the system can be located here and a majority of their ships. This planets population is completely military personnel and personnel committed to the support of said military units.

Barracks, fortresses, missile silos and defense batteries pollute the surface of this world. In times of peace this could be turned into a world of industry, but in this dark time of betrayal and constant war, this world will not be changing its tune any time soon.



With no mineral or bio assets on the planet and being far to far away from Eglurns nurturing sun for life to form naturally, Iathea had no permanent residents. Often there was mining expeditions but nothing of real value was discovered on the planet and its cold dead, near zero atmosphere environment meant no one stayed long.


During compliance the Imperial Fist and then followed by some other legions and army units found the planet as a suitable base to mount missions of compliance within the system and sub sector.

The lifeless world was terraformed and life was breathed into the dead world with mysterious terraforming machines from an age long forgotten. The world was transformed in mere months to a massive staging area. Many legions won their compliance victories having staged their crusades from this very world.

Post Compliance

After compliance many legions kept troops based here with the ability to spread out to other systems and stage mass invasions within the sub sector and to gain resources, support and Imperial army recruits from Eglurn and the various mining operations from other planets within the system. As stated The Imperial Fists maintain their garrison HQ on this planet, but now that war has come to the system many loyalist Legions are finding their way here. Using the massive staging area as a launching point to plunge head first into the inferno of war that the Eglurn system has become.

It is for this reason that this Planet is also a highly desired target by the traitors and their allies, although its taking will not be a simple feat by any means. Perhaps surpassing (defiantly when more than one Legion is gathered here) Eglurn in defense and military power, taking this world will have to be weighed as though the enemy were taking the capital world, would it even be worth doing with casualties surely to be extremely high?

Battle Types

Due to the large base for many loyal legions all battles on this planet must be with armies over 2250 points and use maelstrom missions using 30k cards to represent controlling key sections.

Campaign Reports

Northern Front - Battle of Eglurn System
Northern Front Ribbon.png

The Eglurn System is on the outer reaches of the Cambrius Sub-Sector. Like most the systems within ..→

Battle Reports

Battle Name Date Planet Battle Outcome Battle Summary
Northern Front - Battle of Eglurn System~1491081144 249.009.M31 Iaethea Traitor

The planet of Iaethea had seen some minor battles since the breaking of war within the Elgurn System. The Imperial Fist had called on other legions to try and stop the traitors before the system ..→

Northern Front - Battle of Eglurn System~No more Hiding 003.009.M31 Iaethea Traitor

After their first encounter with Imperial Fist the Emperors Children could no long sneak into the system for supplies. With their cover blown on their departure out of the system to meet up with ..→

Skirmish Reports

  • L-III-0640 defeated L-VII-2056 a Traitor gain.
  • L-III-0640 defeated L-VII-2056 a Traitor gain.
  • L-III-0640 defeated L-I-0140 a Traitor gain.
  • L-IV-0142 defeated L-I-0140 a Traitor gain.
  • L-IV-0142 defeated L-VII-2056 a Traitor gain.