Editing Installation 09

{{Status|Canon}}
{{Megastructure infobox
|image=[[File:HW2 I04C.png|300px]]
|description=
|location=Unknown
|anchor=[[Threshold]] {{C|intended}}
|type=[[Halo Array|Halo Installation]]
|function=*Galactic sterilization {{C|original}}
*[[Distress beacon]]
|caretaker=
|constructed=Between [[2552#December|December 2552]] and [[2559|March 2559]]
|destroyed=*Weapon system disabled{{Ref/Level|Id=Last Stand|HW2|Last Stand (Halo Wars 2 level)|Last Stand}}
*Captured by [[Created]] [[Guardian Custode|Guardian]].
|destroyed-title=Status
|diameter={{Convert|10000|km|mi}}{{Ref/Book|Id=VIS|EVG|Page=6|Detail=Statistics provided for Alpha Halo are relevant for all Neoteric Halo rings.}}{{Ref/Book|Id=Enc22Halos|Enc22|Page=340}}
|surface width={{Convert|318|km|mi}}{{Ref/Reuse|VIS}}{{Ref/Reuse|Enc22Halos}}
|gravity=.992G (approx){{Ref/Reuse|VIS}}
|surface temperature=-23°C to 40°C (-9°F to 104°F) (controlled){{Ref/Reuse|VIS}}
|atmosphere=1 ([[Wikipedia:Nitrogen|N<sub>2</sub>]], [[Oxygen|O<sub>2</sub>]]){{Ref/Reuse|VIS}}
}}
{{Quote|I discovered the Ark keeps an almost finished ring in its central forges at all times. It's an emergency replacement in case one of the other rings breaks down.|[[Ellen Anders]] on the Halo.{{Ref/Level|Id=HTL|HW2|Hold the Line}}}}
'''Installation 09'''{{Ref/Site|URL=https://www.reddit.com/r/halo/comments/70wbxc/return_to_the_denomination_installation_04_b_c/dn6n4h7/|Site=Reddit|Page=Return to the denomination. Installation 04 (B), (C). Canonically. 343 PLS|Quote=Sorry, 08 and 09 make way more sense :-)<br>In actuality, they aren't meant to directly replace an individual ring, but to replace the loss in coverage that ring offered the galaxy.|Quotee=Jeff Easterling|D=14|M=01|Y=2024}} or '''Anders' Halo''' after [[Ellen Anders|its discoverer]] during the [[Second Ark Conflict|battle for the Ark]] in [[2559]], is a [[Halo Array|Halo installation]] which was constructed at the [[Installation 00|Ark]] after the [[Raid on Installation 08|destruction]] of the [[Installation 08|previous replacement]] for the original [[Installation 04]].{{Ref/Reuse|HTL}}{{Ref/Book|Id=Enc22|Enc22|Page=357}}

==Overview==
As with [[Installation 08]] before it, Installation 09 is a replacement for the original [[Installation 04]], designated Alpha Halo. Within the Halo Array's firing sequence, Alpha Halo is the first ring to fire, and the destruction of the original Alpha ring in [[2552]] left a gap in the array that required filling. As a replacement for Installation 04, Installation 09 follows Installation 08 in having an overall design extremely similar in nature to the original ring, with only a few minor superficial differences.{{Ref/Reuse|Enc22}}
===Locations===
*[[Control Room (Installation 09)|Control Room]]
**[[Alpha Base (Installation 09)|Alpha Base]]
**[[Bravo base]]

==History==

===Replacing a replacement===
In the final months of the [[Human-Covenant War]], [[Installation 00]] constructed a replacement for [[Installation 04]], which had been destroyed by [[John-117]] during the [[Battle of Installation 04]]. The still-incomplete replacement ring, [[Installation 08]], was launched from the Ark's [[Foundry (location)|Foundry]] during the [[Battle of Installation 00|war's final battle]], but was subsequently destroyed by its own premature firing, initiated by the Master Chief and [[Cortana]] in order to sterilize a [[Flood]] incursion on the Ark. The ring's firing severely damaged the Ark, though the massive installation was able to repair itself in time, and [[2559|March 2559]], the Ark's Foundry had finished constructing a new replacement ring, Installation 09.{{Ref/Reuse|HTL}}

The existence of Installation 09 was known to [[United Nations Space Command]] forces by [[2558]], thanks to the monitoring of the [[Henry Lamb Research Outpost]] on the Ark, which reported that the new ring had entered construction within the Foundry.{{Ref/Book|OSFM|Page=99}}

===Creation===
{{Main|Second Ark Conflict|Battle of Installation 09}}
During the battle between the [[United Nations Space Command]] forces of the {{UNSCShip|Spirit of Fire}} and the [[Banished]] occupying the Ark, the newly built replacement Halo was discovered by [[Ellen Anders|Professor Ellen Anders]]. Consequently, she and [[James Cutter|Captain James Cutter]] formulated a plan to deploy the ring to the [[Soell system]], [[Installation 04]]'s former site, where it could be used to raise a [[distress beacon]] to the UNSC.{{Ref/Reuse|HTL}} The plan was not approved until [[Isabel]] proposed a plan to destroy Banished's assault carrier ''[[Enduring Conviction]]'' when it launched an assault on {{UNSCShip|Spirit of Fire}} after [[Decimus]] was defeated.{{Ref/Reuse|HTL}} After succeeding in destroying the flagship, Anders went to the Foundry and activated the installation, prompting Atriox to order all available units to take the ring from the UNSC. While the Banished contested the UNSC for control of the new Halo, the humans gained a foothold, allowing Anders to enter the [[Control Room (Installation 09)|control room]] where she successfully disarmed the ring's firing mechanism and manipulated its [[gravity anchor]]s to eject a section of the Halo's landmass housing Banished forces into space. Although the UNSC forces evacuated to their ship, Anders could not make it out of the control room in time before Installation 09 entered a [[slipspace portal]] to the Soell system. En route to its destination, however, the Halo was intercepted by a [[Guardian]].{{Ref/Reuse|Last Stand}}

==Gallery==
{{Linkbox|gallery=yes}}
<gallery>
File:Installation04S.png|The forerunner symbol representing Installation 09.
File:HW2_I04C_emerge.png|Installation 09 emerging from the Ark's foundry in ''[[Halo Wars 2]]''.
File:HW2-Banished-03.jpg|Banished forces on the ring.
File:HW2-Jerome-03.jpg|Jerome-092 on the Halo.
File:HW2-Anders-02.jpg|Prof. Anders interfacing with the [[Core]] in the installation's control room.
File:HW2-Banished ejected.png|Banished forces are evicted from the ring by Anders.
File:HW2 - Spartan and Marines.jpg|UNSC forces leave the Halo.
File:HW2-Halo jump.jpg|The Halo enters slipspace for the Soell system.
File:HW2 - I09 Slipspace Jump.png|The Halo exiting slipspace.
File:HW2 - Halo Slipspace.png|The Halo travelling through slipspace.
File:HW2-Anders meets a Guardian.png|A [[Created]] [[Guardian]] intercepts the Halo.
File:HW2 The Halo.png|Surface of the ring.
</gallery>

==List of appearances==
*''[[Halo Wars 2]]'' {{1st}}
*''[[Halo: Official Spartan Field Manual]]'' {{Mo}}
*''[[Halo: Divine Wind]]'' {{Mo}}

==Sources==
{{Ref/Sources}}

{{Forerunner|array|category=no}}
[[Category:Halo Array]]
[[Category:Installation 09 locations| ]]
[[Category:Created-controlled locations]]