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{{Era|UNSC|HCW}}
{{Status|Canon}}
{{Planet infobox
{{Planet infobox
|image=
|name=Circinius IV
|star, position= [[Circinius system]], IV
|image=[[File:CAMS - afar.jpg|300px]]
|moon(s)=3+
|system=[[Circinius system]]{{Ref/Reuse|Enc22}}
|diameter=  
|body=
|gravity=  
|position=Fourth planet
|daylength=  
|moon(s)=At least three<ref name="part1"/>
|yearlength=  
|diameter=
|atmosphere= [[Oxygen]]-[[nitrogen]]
|gravity=
|composition=
|daylength=
|temperature=  
|yearlength=
|demonym=  
|atmosphere=[[Oxygen]]-[[Wikipedia:Nitrogen|nitrogen]]
|species=  
|temperature=
|population=  
|demonym=
|date of foundation=  
|species=[[Human]] {{C|Non-native}}
|government=
|population=
|technology tier=Tier 3
|colonized=[[2430]]{{Ref/Book|Id=Enc22|Enc22|Page=50}}
|government=[[Unified Earth Government]]
}}
}}
'''Circinius IV'''<ref group="note">Official material from [[343 Industries]] consistently renders the planet's name as "Circinius-IV". The same naming scheme is used for [[Draetheus V]] from ''[[Halo: Spartan Assault]]''. However, ''Halopedia'' omits the hyphen for the sake of convenience and for consistency with other planetary designations (''e.g.'' [[Jericho VII]] and [[Draco III]]).</ref> was a [[Unified Earth Government]] colony world in the [[Circinius system]]. It was the location of the [[Corbulo Academy of Military Science]], an [[Officer Candidate School|officer training school]] for the offspring of high-ranking UNSC officials.<ref>'''[[Halo 4: Forward Unto Dawn]]''', ''Part 1''</ref>


The colony and the academy were [[Fall of Circinius IV|attacked]] by the [[Covenant]] during the earliest days of the [[Human-Covenant War]] on [[2526|April 26, 2526]].<ref>[https://forums.halowaypoint.com/yaf_postsm2482554_Today-in-Halo.aspx#post2482554 '''Halo Waypoint Forums''' - ''Today in Halo'']</ref> During the battle, the Covenant killed almost the entire population of the planet. Only [[Hastati Squad|four cadets]] from Corbulo Academy survived the initial assault,<ref>'''Halo 4: Forward Unto Dawn''', ''Episode 4''</ref> although one of them, [[Chyler Silva]], died during the battle. Later, the planet was [[Glassing|glassed]] by the Covenant.<ref>'''Halo 4: Forward Unto Dawn''', ''Episode 5''</ref>
'''Circinius IV'''{{Ref/Note|Official material from [[343 Industries]] consistently renders the planet's name as "Circinius-IV". The same naming scheme is used for [[Draetheus V]] from ''[[Halo: Spartan Assault]]''. However, ''Halopedia'' omits the hyphen for the sake of convenience and for consistency with other planetary designations (''e.g.'' [[Jericho VII]] and [[Draco III]]).}} was a [[Unified Earth Government]] [[Outer Colonies|Outer]] [[human colony|colony]] [[world]] in the [[Circinius system]].{{Ref/Reuse|Enc22}}{{Ref/Note|Id=date|Only the Outer Colonies were [[Siege of the Inner Colonies|attacked]] pre-[[2536]].}} The planet was orbited by at least three [[natural satellite]]s. It was the location of the [[Corbulo Academy of Military Science]], an [[Officer Candidate School|officer training school]] for the offspring of high-ranking UNSC officials.<ref name="part1">'''[[Halo 4: Forward Unto Dawn]]''', ''Part 1''</ref> The [[space elevator]] located at Corbulo Academy was considered one of the planet's most spectacular sites.<ref>[https://www.youtube.com/watch?v=j0XgIEQ8NR8 '''YouTube''': ''Halo Channel Premiere'']</ref>


==Trivia==
==Overview==
Along with [[Hat Yai]], Circinius IV is not mentioned in the [[Assembly]]'s report on glassed worlds (dated [[2530|January 1, 2530]]) in [[Data pads#Data pad 14|data pad 14]] from ''[[Halo: Reach]]''. Thought the obvious Doylist explanation is that the planet was created after the game's release, there is no clear in-universe reason for this omission.
[[File:CirciniusIVMountainValley.png|250px|thumb|left|A forested valley on Circinius IV.]]
===Environmental features===
The environments of Circinius IV around Corbulo Academy featured dense forests, snow-capped mountains, valleys, and rivers, strikingly similar to the Pacific Northwest of [[Earth]].{{Ref/Film|Id=H4FuD|Halo 4: Forward Unto Dawn}}{{Ref/Note|''Halo 4: Forward Unto Dawn'' was shot partly on-location in Vancouver, BC.}}


==Note==
====Locations====
<references group="note"/>
*[[Corbulo Academy of Military Science]]
 
[[File:CirciniusIVForest.png|250px|thumb|right|A dense forest covered in aerial moss on Circinius IV.]]
===Ecology===
Much of its flora appeared identical to Earth species, such as trees resembling [[Wikipedia:Douglas fir|Douglas fir]] (a species also present on [[Reach]]),{{Ref/Novel|Id=FS|Halo: First Strike|4}} Western hemlock, Western red cedar, Sitka spruce, Vine maple, Red alder, Pacific dogwood, Black cottonwood, and Western paper birch, shrubs resembling hazelnut, huckleberry, and hawthorn, multiple species of fern, aerial mosses coating large surfaces of some trees, terrestrial mosses forming dense spongy layers on the ground, as well as cryptogam growth such as crustose lichens, which grew on UNSC field depots in the forests.{{Ref/Reuse|Id=H4FuD}}
 
Corbulo Academy incorporated many species from the surrounding environment into its landscaping. Its topiaries resembled boxwood, a common species used in decorative hedges on Earth.{{Ref/Reuse|H4FuD}}
 
Circinius IV had plentiful small flying insects. The presence of flowering plants suggests some type of pollinators.{{Ref/Reuse|H4FuD}}
 
==History==
===Human-Covenant war===
{{Main|Battle of Circinius IV}}
After the [[First Battle of Harvest|first engagements]] on [[Harvest]], [[ONI Section Two|ONI Section II]] kept the [[Covenant]] invasion secret from the general population. However, Corbulo Academy's superintendent, [[General]] [[Daniel Black]], was informed. As preparation for a possible attack, Black discreetly increased the readiness of the [[UNSC Marine Corps|UNSC Marine]] garrison posted in the academy and authorized limited communications blackouts under the guise of routine maintenance procedures.{{Ref/Reuse|part1}}
 
The colony and the academy were [[Battle of Circinius IV|attacked]] by the [[Covenant]] during the earliest days of the [[Human-Covenant War]] on [[2526|April 26, 2526]].<ref>[https://forums.halowaypoint.com/yaf_postsm2482554_Today-in-Halo.aspx#post2482554 '''Halo Waypoint Forums''' - ''Today in Halo'']</ref> Orbiting UNSC vessels soon deployed [[Orbital Drop Shock Troopers]] directly onto Corbulo Academy's campus. The planet's [[space elevator]] was also destroyed, killing many of the escaping cadets as it fell.<ref>'''Halo 4: Forward Unto Dawn''', ''Episode 3''</ref> During the battle, the Covenant killed almost the entire population of the planet. Only [[Hastati Squad|four cadets]] from Corbulo Academy survived the initial assault,<ref>'''Halo 4: Forward Unto Dawn''', ''Episode 4''</ref> although one of them, [[Chyler Silva]], died during the battle. Later, the planet was [[Glassing|glassed]] by the Covenant.<ref>'''Halo 4: Forward Unto Dawn''', ''Episode 5''</ref>
 
At some point following the planet's invasion, the UNSC launched [[Operation: ABLE SENTRY]] on Circinius IV to investigate Covenant activity on the planet. [[Edward Buck]] participated in this operation. Directly afterwards, [[Operation: PHALANX]] was initiated and carried out by UNSC personnel, including [[John-117]], to rescue civilians on Circinius IV and to investigate Covenant invasion patterns.{{Ref/Game|Halo 5: Guardians Limited Edition|[[Halo 5: Guardians Limited Edition dossiers#Edward Buck|Dossier files]] - Edward Buck}}{{Ref/Game|Id=H5GLtd|Halo 5: Guardians Limited Edition|[[Halo 5: Guardians Limited Edition dossiers#John-117|Dossier files]] - John-117}}
 
==Production notes==
*Along with [[Hat Yai]], Circinius IV is not mentioned in the [[The Assembly|Assembly]]'s report on glassed worlds (dated [[2530|January 1, 2530]]) in [[Data pads#Data pad 14|data pad 14]] from ''[[Halo: Reach]]''. From a real-world perspective, the obvious explanation is that the planet was created after the game's release, there is no clear in-universe reason for this omission. However, given that both worlds had some form of human population on their surface following their presumed glassing dates,{{Ref/Reuse|H5GLtd}} it is possible that both Circinius IV and Hat Yai were not entirely glassed by the Covenant.
*As ''Halo 4: Forward Unto Dawn'' was shot partly on-location at [[Wikipedia: Simon Fraser University|Simon Fraser University]] and [[Wikipedia:Burnaby Mountain|Burnaby Mountain]] in Vancouver, much of its plant life are real-world species common to the Pacific Northwest, identified from the [https://www.sfu.ca/archaeology/engagement/garden/plants.html Simon Fraser University Native Plant Garden List] and the [http://scec.ca/pdf/BBY/BBYMtnMng_AppendixG_181.pdf Management Plan for Burnaby Mountain Conservation Area].
{{Linkbox|gallery=yes}}


==Gallery==
==Gallery==
<gallery>
<gallery>
File:CAMS - afar.jpg|The Corbulo Academy of Military Science situated among the lush, mountainous landscape of Circinius IV.
File:H4FUD Corbulo Academy.jpg|The grounds of the Corbulo Academy of Military Science on Circinius IV.
File:H4FUD Corbulo Academy.jpg|The grounds of the Corbulo Academy of Military Science on Circinius IV.
File:CorbuloFieldDepotGrowth.png|A UNSC field depot covered in cryptogam growth.
File:CirciniusIVForestNight.png|A forest on Circinius IV at night.
File:FUD-Circinius-Mountains.jpg|One of Circinius IV's mountain ranges.
File:FUD-Circinius-Mountains.jpg|One of Circinius IV's mountain ranges.
File:FUD-Corbulo-Glassed.jpg|Circinius IV being glassed by the Covenant.
File:FUD-Corbulo-Glassed.jpg|Circinius IV being glassed by the Covenant.
File:H2A CirciniusDestroyedConcept.jpg|Unused concept art of Circinius IV for ''[[Halo 2: Anniversary]]'''s [[Terminal (Halo 2: Anniversary)|terminals]], seemingly showing the world blown to pieces.
</gallery>
</gallery>


==List of appearances==
==List of appearances==
*''[[Halo 4: Forward Unto Dawn]]'' {{1st}}
*''[[Halo 4: Forward Unto Dawn]]'' {{1st}}
*''[[Halo 4]]'' {{Mo}}
*''[[Halo 2: Anniversary]]''
*''[[Halo 5: Guardians]]'' {{Mo}}
**''[[Halo 5: Guardians Limited Edition dossiers|Limited Edition dossiers]]'' {{Mo}}
*''[[Halo: Silent Storm]]'' {{Mo}}
*''[[Halo: Oblivion]]'' {{Mo}}
==Notes==
{{Ref/Notes}}


==Sources==
==Sources==
<references/>
{{Ref/Sources}}
 
[[Category:Planets]]
[[Category:Human colonies]]
[[Category:Human colonies]]
[[Category:Planets]]

Latest revision as of 14:26, October 14, 2024

Circinius IV
CAMS - afar.jpg
Astrographical

System:

Circinius system[1]

Orbital position:

Fourth planet

Moon(s):

At least three[2]

Physical

Atmosphere:

Oxygen-nitrogen

Societal

Species:

Human (Non-native)

Colonized:

2430[1]

Government:

Unified Earth Government

 

Circinius IV[Note 1] was a Unified Earth Government Outer colony world in the Circinius system.[1][Note 2] The planet was orbited by at least three natural satellites. It was the location of the Corbulo Academy of Military Science, an officer training school for the offspring of high-ranking UNSC officials.[2] The space elevator located at Corbulo Academy was considered one of the planet's most spectacular sites.[3]

Overview[edit]

A mountainous valley on Circinius IV
A forested valley on Circinius IV.

Environmental features[edit]

The environments of Circinius IV around Corbulo Academy featured dense forests, snow-capped mountains, valleys, and rivers, strikingly similar to the Pacific Northwest of Earth.[4][Note 3]

Locations[edit]

A forest on Circinius IV.
A dense forest covered in aerial moss on Circinius IV.

Ecology[edit]

Much of its flora appeared identical to Earth species, such as trees resembling Douglas fir (a species also present on Reach),[5] Western hemlock, Western red cedar, Sitka spruce, Vine maple, Red alder, Pacific dogwood, Black cottonwood, and Western paper birch, shrubs resembling hazelnut, huckleberry, and hawthorn, multiple species of fern, aerial mosses coating large surfaces of some trees, terrestrial mosses forming dense spongy layers on the ground, as well as cryptogam growth such as crustose lichens, which grew on UNSC field depots in the forests.[4]

Corbulo Academy incorporated many species from the surrounding environment into its landscaping. Its topiaries resembled boxwood, a common species used in decorative hedges on Earth.[4]

Circinius IV had plentiful small flying insects. The presence of flowering plants suggests some type of pollinators.[4]

History[edit]

Human-Covenant war[edit]

Main article: Battle of Circinius IV

After the first engagements on Harvest, ONI Section II kept the Covenant invasion secret from the general population. However, Corbulo Academy's superintendent, General Daniel Black, was informed. As preparation for a possible attack, Black discreetly increased the readiness of the UNSC Marine garrison posted in the academy and authorized limited communications blackouts under the guise of routine maintenance procedures.[2]

The colony and the academy were attacked by the Covenant during the earliest days of the Human-Covenant War on April 26, 2526.[6] Orbiting UNSC vessels soon deployed Orbital Drop Shock Troopers directly onto Corbulo Academy's campus. The planet's space elevator was also destroyed, killing many of the escaping cadets as it fell.[7] During the battle, the Covenant killed almost the entire population of the planet. Only four cadets from Corbulo Academy survived the initial assault,[8] although one of them, Chyler Silva, died during the battle. Later, the planet was glassed by the Covenant.[9]

At some point following the planet's invasion, the UNSC launched Operation: ABLE SENTRY on Circinius IV to investigate Covenant activity on the planet. Edward Buck participated in this operation. Directly afterwards, Operation: PHALANX was initiated and carried out by UNSC personnel, including John-117, to rescue civilians on Circinius IV and to investigate Covenant invasion patterns.[10][11]

Production notes[edit]

Main-Superintendent.png Browse more images in this article's gallery page.

Gallery[edit]

  • The grounds of the Corbulo Academy of Military Science on Circinius IV.

    The grounds of the Corbulo Academy of Military Science on Circinius IV.

  • A UNSC field depot covered in cryptogam growth.

    A UNSC field depot covered in cryptogam growth.

  • A forest on Circinius IV at night.

    A forest on Circinius IV at night.

  • One of Circinius IV's mountain ranges.

    One of Circinius IV's mountain ranges.

  • Circinius IV being glassed by the Covenant.

    Circinius IV being glassed by the Covenant.

  • Unused concept art of Circinius IV for Halo 2: Anniversary's terminals, seemingly showing the world blown to pieces.

    Unused concept art of Circinius IV for Halo 2: Anniversary's terminals, seemingly showing the world blown to pieces.

List of appearances[edit]

Notes[edit]

  1. ^ Official material from 343 Industries consistently renders the planet's name as "Circinius-IV". The same naming scheme is used for Draetheus V from Halo: Spartan Assault. However, Halopedia omits the hyphen for the sake of convenience and for consistency with other planetary designations (e.g. Jericho VII and Draco III).
  2. ^ Only the Outer Colonies were attacked pre-2536.
  3. ^ Halo 4: Forward Unto Dawn was shot partly on-location in Vancouver, BC.

Sources[edit]

  1. ^ a b c Halo Encyclopedia (2022 edition), page 50
  2. ^ a b c Halo 4: Forward Unto Dawn, Part 1
  3. ^ YouTube: Halo Channel Premiere
  4. ^ a b c d Halo 4: Forward Unto Dawn
  5. ^ Halo: First Strike, chapter 4
  6. ^ Halo Waypoint Forums - Today in Halo
  7. ^ Halo 4: Forward Unto Dawn, Episode 3
  8. ^ Halo 4: Forward Unto Dawn, Episode 4
  9. ^ Halo 4: Forward Unto Dawn, Episode 5
  10. ^ Halo 5: Guardians Limited Edition, Dossier files - Edward Buck
  11. ^ a b Halo 5: Guardians Limited Edition, Dossier files - John-117
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