//(OOC Note: This page is a work in progress. Comments by experts in astrophysics or planetary geology welcome - H.)//

Cyrinius is a minor planet located in Thinora System.  It has a hydrocarbon atmosphere and a surface covered with hydrocarbon "ice".  It is nominally under control of the [[Annyrion Colonist - Eisshari Coalition]], with both a planetside monitoring station and the nearby Charter Station enforcing that claim.

===== Origin =====
It is possible that Cyrinius is a gravitationally-captured rogue planet whose origins were in another system.  Most planets of its size are usually found in orbit around a gas giant, in a manner similar to Titan orbiting Saturn in Sol System.

===== Coalition presence =====
The Coalition maintains a weapons testing range in the sectors surrounding Cyrinius.  Live-fire exercises are conducted regularly, and cold-weather training (requiring the use of special protective equipment) is conducted on its surface.  The Coalition //Shogun-class// space dominance vehicle //Angelus//, operating out of Charter Station, makes irregularly-regular patrols of the area.