Editing Soell system

{{Status|Canon}}
{{Stellar infobox
|name= Soell system
|image=[[File:H5 - Soell.png|300px]]
|sector=
|constellation=
|distance=
|type=
|magnitude=
|bodies=9{{Ref/Reuse|truth}}
|asteroids=1 [[asteroid]] belt{{Ref/Reuse|truth}}
|events=*[[Battle of Installation 04]]
*[[Skirmish over Threshold]]
*[[Raid on the Threshold gas mine]]
*[[Skirmish on Mona Lisa]]
|affiliation=[[Forerunner]] [[ecumene]] {{C|formerly}}
}}

The '''Soell system''' is the planetary system in which [[Threshold]], [[Basis]], and [[Installation 04]] are located.{{Ref/Book|Id=sybex|[[Halo: Combat Evolved: Sybex Official Strategies & Secrets]]|Page=63}} It is located in relative proximity to the [[Epsilon Eridani system]]{{Ref/Game|Id=hw2|[[Halo Wars 2]]}} within the [[Orion Arm]] of the [[Milky Way]].<ref>'''[[Halo Legendary Crate]]''', ''[[Halo Legendary Crate/Data Drops|Data Drop #3]]''</ref> Soell is orbited by nine planets: four outer planets and five inner planets separated by an [[asteroid]] belt.{{Ref/Map|Id=truth|[[Halo 5: Guardians]]|[[Truth]]}}<ref>[https://www.youtube.com/watch?v=tcSQyp45mKM '''YouTube''': ''Soell System Hologram - Halo 5 Guardians'']</ref>

==Overview==
===Planetary system===
The five inner planets of the Soell system all appear to be terrestrial. The innermost planet is small with one small [[natural satellite]]. The second planet is small and moonless. The third orbiting body is a tiny, cratered planet with two small natural satellites. The fourth planet is orbited by three moons. The fifth planet orbiting Soell is a terrestrial planet with a slight ovoid shape and a single natural satellite.{{Ref/Reuse|truth}}

Beyond the relatively sparse [[asteroid]] belt, the sixth orbiting planet is a large, ringed planet. [[Threshold]] is the seventh and largest planet in Soell's orbit.{{Ref/Book|Id=vis|[[Halo: The Essential Visual Guide]]|Page=195}} Threshold is orbited by 12 satellites, including [[Basis]], its largest satellite, and Installation 04.{{Ref/Reuse|sybex}} The eighth planet is a shattered, rocky world. The ninth planet orbiting Soell is a large, cratered terrestrial planet. Soell's outermost orbiting planet has an [[Wikipedia:Elliptical orbit|elliptical orbit]], thus occasionally bringing it closer to Soell than the eighth closest planet.{{Ref/Reuse|truth}}

====Locations====
{| class="wikitable sortable"
|- align="center"
!width="75px"|Name !! Image !! Description !! Orbiting locations
|- align="center"
| Soell I || [[File:H5G-Truth-Hologram of Soell I.png|300px]] || Planet || 1 moon
|- align="center"
|- align="center"
| Soell II || [[File:H5G-Truth-Hologram of Soell II.png|300px]] || Planet || N/A
|- align="center"
| Soell III || [[File:H5G-Truth-Hologram of Soell III.png|300px]] || Planet || 2 moons
|- align="center"
| Soell IV || [[File:H5G-Truth-Hologram of Soell IV.png|300px]] || Planet || 3 moons
|- align="center"
| Soell V || [[File:H5G-Truth-Hologram of Soell V.png|300px]] || Planet || 1 moon
|- align="center"
| Soell asteroid belt || N/A || Asteroid belt || N/A
|- align="center"
| Soell VI || [[File:H5G-Truth-Hologram of Soell VI.png|300px]] || Planet with a ring || 5 moons
|- align="center"
| [[Threshold|Soell VII "Threshold"]] || [[File:H5G Threshold.png|300px]] || Gas Giant planet || 12 moons including [[Basis]]<br>[[Installation 04]] (destroyed, remnants remain)<br>[[Deep-Space Anomaly 0198]]<br>[[Threshold gas mine]]
|- align="center"
| Soell VIII || [[File:H5G-Truth-Hologram of Soell VIII.png|300px]] || Planet || N/A
|- align="center"
| Soell IX || [[File:H5G-Truth-Hologram of Soell IX.png|300px]] || Shattered Planet || N/A
|}

==History==
===Ancient history===
During the waning years of the [[Forerunner]] [[Ecumene]] in the midst of the [[Forerunner-Flood war]], the Soell system was chosen as the location for [[Installation 04]], with the gas giant Threshold serving as its anchor. Facing utter annihilation at the hands of the [[Flood]], the [[IsoDidact]] activated the installation, triggering the Halo Array and eradicating the Flood and all sentient life in the galaxy. For nearly a hundred thousand years the Soell system and its strategic significance went unnoticed even as the galaxy steadily repopulated. 

===Human-Covenant war===
[[File:H2A-AlphaHaloDiscovery.jpg|thumb|300px|right|The Fleet of Particular Justice over Installation 04.]]
In [[2552]], the penultimate year of the [[Human-Covenant War]], the humans of the {{UNSCShip|Pillar of Autumn}} made a supposedly blind [[slipspace]] jump into the Soell system, having narrowly fled the [[Covenant]] who had [[Fall of Reach|completely destroyed]] the colony world of [[Reach]]. As the ''Autumn'' approached the ring,{{Ref/Level|Id=poa|CE|[[The Pillar of Autumn (Halo: Combat Evolved level)|The Pillar of Autumn]]}} [[343 Guilty Spark]] sent a signal to the human vessel threatening to activate the ring's defensive countermeasures if they did not retreat from its vicinity. However, upon recognizing the humans, the apparent [[Reclaimer]]s of the Forerunner race, Guilty Spark disabled the ring's defenses and welcomed the humans to approach.{{Ref/Game|[[Halo: Combat Evolved Anniversary]]|[[Terminal (Halo: Combat Evolved Anniversary)/One|Terminal One]]}} During this, the Covenant [[Fleet of Particular Justice]] emerged, having beaten the humans to Soell and initiating an attack on the cruiser, thus triggering the climactic [[Battle of Installation 04]].{{Ref/Reuse|poa}}

In the days that followed, the humans and Covenant battled for control of the installation, both unaware of its true value as a weapon of mass destruction. During the prolonged engagement, the Covenant unknowingly unleashed the Flood, which had laid in stasis as the installation's vast army of [[Sentinels]] studied its nature. The parasite spread quickly and soon overtook both sides, threatening to use the Covenant's remaining ships to flee the Soell system and infect all life in the galaxy. 343 Guilty Spark sought the aid of [[Spartan-II program|Spartan-II supersoldier]] [[John-117]] in activating the ring's defenses and with it the entire Halo Array.{{Ref/Level|CE|[[Two Betrayals]]}} Instead, with the aid of [[Cortana]] the Spartan evaded both Spark and the Covenant invaders and detonated the ''Pillar of Autumn''{{'}}s fusion reactors, causing a chain reaction that destroyed Installation 04 and prevented the Flood from escaping the system.{{Ref/Level|CE|[[The Maw]]}}

In the days that followed, the {{UNSCShip|Red Horse}} was sent to investigate the system, encountering the human prison ship ''[[Mona Lisa]]'' in the vicinity of Installation 04's debris field. A team of Marines was sent to [[Skirmish on Mona Lisa|investigate]], only to find the vessel overrun by Flood who had escaped containment. Recognizing the threat, the ''Red Horse'' was forced to destroy the ''Mona Lisa'', destroying the surviving Flood once again. 

The Covenant holy city of ''[[High Charity]]'' occupied the Soell system as the [[High Council]] publicly prosecuted [[Shipmaster]] [[Thel 'Vadamee]] for his failure to safeguard the ringworld.{{Ref/Level|H2|[[The Heretic]]}} However, the Council opted to promote 'Vadamee to [[Arbiter]], and tasked him with the elimination of a group of [[Heretics]] that had assembled on the [[Threshold gas mine]], unaware of the Flood specimens also alive on board.{{Ref/Level|H2|[[The Arbiter]]}} The [[Battle of the Threshold gas mine|engagement]] saw the destruction of this facility, the Heretics, and all of the Flood encased within, as well as the capture of 343 Guilty Spark.{{Ref/Level|H2|[[The Oracle]]}} 

Following this battle, the Covenant abandoned the Soell system and relocated to the [[Coelest system]] to the newly-discovered [[Installation 05]].{{Ref/Level|H2|[[Regret (Halo 2 level)|Regret]]}}

===Post-war===
After the conclusion of the Human-Covenant War that saw the final collapse of the Covenant, the Soell system fell into the newly-established [[Joint Occupation Zone]] under the strict supervision of the Sangheili-led [[Swords of Sanghelios]] and the [[United Nations Space Command]]. 

The Soell system was chosen to host the [[Installation 08|replacement]] [[Installation 09|installations]] constructed by [[Installation 00]] immediately after Halo's destruction. The first of these was destroyed in 2552 and the second was seized by the [[Created]] while in slipspace in [[2559]]. The second replacement was launched to the Soell system by the crew of the {{UNSCShip|Spirit of Fire}} specifically due to the system's proximity to human space: it was believed that the signal from a [[distress beacon]] placed on the new installation would be able to reach human space and alert them to the ''Spirit of Fire's'' predicament on Installation 00.{{Ref/Reuse|hw2}}

==Trivia==
The system is named after [[Matt Soell]], a former [[Bungie]] employee.<ref>[http://forums.bungie.org/halo/archive.pl?read=6615 '''Halo.bungie.org''': ''Re: Climate?'']</ref>

==Gallery==
<gallery>
File:Halo ring.jpg|Soell and Halo Installation 04.
File:Installation 04 Terminal.jpg|Soell, partially eclipsed by Threshold.
File:HaloAJ.png|Soell and the ruins of Installation 04.
File:H2A-Soell from Threshold.png|Soell as seen from Threshold's atmosphere.
File:BasisCentered.jpg|Basis, a moon of Threshold.
</gallery>

==List of appearances==
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: Combat Evolved]]''
*''[[Halo: The Flood]]''
*''[[Halo: First Strike]]''
*''[[Halo 2]]''
*''[[Halo Graphic Novel]]''
**''[[Breaking Quarantine]]''
**''[[The Last Voyage of the Infinite Succor]]''
*''[[Halo Legends]]''
**''[[Origins]]''
*''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''
**''[[The Mona Lisa]]''
*''[[Halo: Reach]]''
*''[[Halo: Combat Evolved Anniversary]]''
**''[[Terminal (Halo: Combat Evolved Anniversary)|Terminals]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
*''[[Halo 2: Anniversary]]''
**''[[Terminal (Halo 2: Anniversary)|Terminals]]''
*''[[Halo 5: Guardians]]''
*''[[Halo Mythos]]
*''[[Halo: Tales from Slipspace]]''
**''[[Dominion Splinter]]'' {{C|Flashback}}
*''[[Halo Wars 2]]'' {{Mo}}
*''[[Halo: Fireteam Raven]]''
*''[[Halo: Official Spartan Field Manual]]''
*''[[Halo: The Television Series Season Two]]''
**''[[Thermopylae (TV Series)|Thermopylae]]''
**''[[Halo (TV Series)|Halo]]''

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

[[Category:Planetary systems]]