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Circinius IV

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Halo 4 FUD Circinius IV
Circinius IV

Star, position

Circinius system, IV


At least three


At least one Space elevator station


Approximately 1G




Human (non-native)



Techology tier

Tier 3

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Circinius IV was the only known colonized planet in the Circinius system. It was part of the Unified Earth Government and was home to the Corbulo Academy of Military Science.


Circinius IV was a very rural planet. There was a very temperate area as there was a large coniferous forest around CAMS. This region was also very mountainous having many hills and peaks. It is unknown if there was any terraforming done to the planet.

Currently, the only known settlement is the Corbulo Academy of Military Science campus. Like many other colonies, power was generated for CAMS through hydro-electricity and wind turbines. It also housed one of, if not the only, space tether.

The planet was at least partially glassed after its discovery, causing huge forest fires.


Human-Covenant WarEdit

Main article: Battle of Circinius IV

The planet was invaded by the Covenant during a surprise attack on April 26, 2526[1] with the main battle taking place at the Corbulo Academy of Military Science and its surrounding forests. At least three Covenant Corvettes began the attack by destroying the space tether at CAMS, killing most of the people who were evacuating up the elevator and at its base. Ground forces arrived picking off people on campus. Almost everyone on the planet was killed during the invasion with the only known survivors of the attack being three remaining members of Hastati Squad; April Orenski, Michael Sullivan, and Thomas Lasky[2]. They were rescued by three members of Blue Team; SPARTAN-II Master Chief Petty Officer John-117, Petty Officer Second Class Kelly-087, and Lieutenant, Junior Grade Frederic-104 just as the Covenant were reaching their position with their glassing beams.[2] At least five CCS-class battlecruisers were seen glassing the surface of the planet.




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