Threshold: Difference between revisions

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{{ratings}}
{{Era|Forerunner|Covenant|Human|UNSC|HCW|Post}}
{{Era|Forerunner|Covenant|Human|UNSC|HCW|Post}}
{{Planet
{{Planet
|name=Threshold
|name=Threshold
|image=[[File:Threshold.png|200px]]
|image=[[File:Threshold.png|200px]]
|star, position=Soell System, [[Soell]]
|star, position=[[Soell]], VII<ref name="vis">'''[[Halo: The Essential Visual Guide]]''', ''page 195''</ref>
|moon(s)= [[Basis]]
|moon(s)= [[Basis]]
|satellite(s)= *[[Installation 04]]<ref>'''[[Halo: Combat Evolved]]'''</ref>
|satellite(s)= ;12<br>
*[[Deep-Space Anomaly 0198]]<ref>'''[[Halo: Combat Evolved]]''', level ''[[Derelict]]''</ref>
*[[Installation 04]]<ref>'''[[Halo: Combat Evolved]]'''</ref>
*[[Deep-Space Anomaly 0198]]<ref>'''[[Halo: Combat Evolved]]''', multiplayer map ''[[Derelict]]''</ref>
|gravity=  
|gravity=  
|diameter= 214,604 kilometers
|diameter= 214,604 kilometers
|daylength=
|daylength=
|yearlength=
|yearlength=
|atmosphere=[[Ammonia]], [[ammonium hydrosulfide]], [[phosphorus]] compounds, other gases<ref name="atmo">'''[[Halo: First Strike]]''', page 79</ref>
|composition=;Gases:
[[Hydrogen]], [[helium]], [[methane]]<ref name="vis"/>
;Liquids:
[[Ammonia]], [[water]],<ref name="vis"/> [[ammonium hydrosulfide]], [[phosphorus]] compounds<ref name="atmo">'''[[Halo: First Strike]]''', page 79</ref>
|surface temperature=
|surface temperature=
|population=  
|population=  
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|current threat to array=
|current threat to array=
}}
}}
'''Threshold''' is a planet in the [[Soell]] star system.<ref name="sybex-halo">'''[[Halo: Combat Evolved: Sybex Official Strategies & Secrets]]''', ''chapter 5'', page 63</ref> It is an immense gas giant with a radius of 107,302 km (66,674.5 miles), and one natural satellite, [[Basis]] which has a radius of 11,924 kilometers. The atmosphere is made up of white [[ammonia]] clouds, amber-colored [[ammonium hydrosulfide]] clouds, [[phosphorus]] compounds, ice crystals and other gases.<ref name="atmo"/> Threshold is known to have storms in its atmosphere similar to the storms that occur on the planet [[Jupiter]], since a large storm raged during the [[Battle of the Threshold gas mine|battle on the gas mine]].<ref>'''[[Halo 2]]''' levels ''[[The Arbiter]]'' and ''[[The Oracle]]''</ref> Threshold was a [[neutral]] location during the [[Human-Covenant War]].
'''Threshold''' is the seventh and largest planet in the [[Soell]] star system.<ref name="vis"/> It was the gravity anchor for [[Installation 04]], which was situated at the [[Lagrange point]] between Threshold and its largest natural satellite, [[Basis]].<ref name="sybex-halo">'''[[Halo: Combat Evolved: Sybex Official Strategies & Secrets]]''', chapter 5, ''page 63''</ref>


Threshold's [[Earth]] Survey Catalog number is B1008-AG.<ref name="sybex-halo"/>
Threshold is an immense gas giant with a radius of 107,302 km (66,674.5 miles), and twelve satellites, several of which are Forerunner installations. Threshold's largest moon, Basis, has a radius of 11,924 kilometers; the others are significantly smaller, but are nonetheless host to various Forerunner facilities.<ref name="vis"/>
 
Threshold's atmosphere is made up of white [[ammonia]] clouds, amber-colored [[ammonium hydrosulfide]] clouds, [[phosphorus]] compounds, ice crystals and other gases.<ref name="atmo"/> Threshold is known to have storms in its atmosphere similar to the storms that occur on the planet [[Jupiter]].<ref>'''[[Halo 2]]''' levels ''[[The Arbiter]]'' and ''[[The Oracle]]''</ref> Threshold's atmosphere was home to several Forerunner [[Threshold gas mine|gas mining platforms]].<ref name="vis"/>
 
Threshold was a [[neutral]] location during the [[Human-Covenant War]]. Its [[Earth]] Survey Catalog number is B1008-AG.<ref name="sybex-halo"/>


==Forerunner activity==
==Forerunner activity==
Over 100,000 years ago, Threshold was a part of the sizable and extensive [[Forerunner]] empire. They built at least one automated, viable [[Threshold gas mine|gas mine complex]] in the upper atmosphere of the planet, likely harvesting the hydrogen gas of the planet. The hydrogen was probably used as transmutation material for construction, though this is not confirmed.
Over 100,000 years ago, Threshold was a part of the sizable and extensive [[Forerunner]] empire. They built at least one automated, viable [[Threshold gas mine|gas mine complex]] in the upper atmosphere of the planet, likely harvesting the hydrogen gas of the planet. The hydrogen was probably used as transmutation material for construction, though this is not confirmed.


Several hundred or thousand years later, upon the discovery of the [[Flood]], the Forerunners refitted the gas mines to serve as [[Flood research facility|Flood research facilities]]. These facilities proved only one thing: more extreme measures were needed to combat the Flood and to keep them from spreading. The Forerunners then chose the planet as a staging point for one of their massive fortress worlds, known as [[Halo Array|Halo]] and numbered as [[Installation 04]]. The Halo was placed on the [[Lagrange point]] between Threshold and Basis and was designed to destroy all sentient life in the galaxy, thereby halting the spread of the Flood, due to starvation.
Several hundred or thousand years later, upon the discovery of [[the Flood]], the Forerunners refitted the gas mines to serve as [[Flood research facility|Flood research facilities]]. These facilities proved only one thing: more extreme measures were needed to combat the Flood and to keep them from spreading. The Forerunners then chose the planet as a staging point for one of their massive fortress worlds, known as [[Halo Array|Halo]] and numbered as [[Installation 04]]. The Halo was placed on the [[Lagrange point]] between Threshold and Basis and was designed to destroy all sentient life in the galaxy, thereby halting the spread of the Flood, due to starvation.


In [[2552]], the [[Covenant Empire|Covenant]] were looking for an artifact from [[Sigma Octanus IV]] to uncover this planet as the location of the "Sacred Ring", in order to start the Great Journey. The [[Fleet of Particular Justice]] followed the {{UNSCShip|Pillar of Autumn}} there, and, [[Battle of Installation 04|in a series of events]], Installation 04 was destroyed.<ref>'''[[Halo: Combat Evolved]]''', ''[[The Maw]]''</ref> In the [[Skirmish over Threshold]] after the ring's destruction, [[Cortana]] was able to jump into [[slipspace]] with the Covenant flagship ''[[Ascendant Justice]]'' while in Threshold's atmosphere.
In [[2552]], the [[Covenant Empire|Covenant]] were looking for an artifact from [[Sigma Octanus IV]] to uncover this planet as the location of the "Sacred Ring", in order to start the Great Journey. The [[Fleet of Particular Justice]] followed the {{UNSCShip|Pillar of Autumn}} there, and, [[Battle of Installation 04|in a series of events]], Installation 04 was destroyed.<ref>'''[[Halo: Combat Evolved]]''', ''[[The Maw]]''</ref> In the [[Skirmish over Threshold]] after the ring's destruction, [[Cortana]] was able to jump into [[slipspace]] with the Covenant flagship ''[[Ascendant Justice]]'' while in Threshold's atmosphere.
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==Trivia==
==Trivia==
*The inner core of Threshold is solid nitrogen, as told by [[343 Guilty Spark]], during the battle with the [[Heretic]] leader, [[Sesa 'Refumee]].
*The inner core of Threshold is solid nitrogen, as told by [[343 Guilty Spark]], during the battle with the [[Heretic]] leader, [[Sesa 'Refumee]].
*Threshold is described as purple in the book, ''[[Halo: The Flood]]'', though throughout ''[[Halo: Combat Evolved]]'' and ''[[Halo 2]]'', it is only shown as orange. Also, the planet is depicted as being light blue in the motion comic adaptation of ''[[The Mona Lisa]]''.<ref name="SDCC">[http://www.youtube.com/watch?v=8bEMmNEHbr0 '''YouTube''': ''SDCC: Halo Universe Panel (Part 5)'']</ref> This may be caused by the position of the system's sun at different times or the proximity to the gas giant.
*Threshold is described as purple in the book, ''[[Halo: The Flood]]'', though throughout ''[[Halo: Combat Evolved]]'' and ''[[Halo 2]]'', it is only shown as orange. Also, the planet is depicted as being light blue in the motion comic adaptation of ''[[The Mona Lisa]]''.<ref name="SDCC">[http://www.youtube.com/watch?v=8bEMmNEHbr0 '''YouTube''': ''SDCC: Halo Universe Panel (Part 5)'']</ref> This may be caused by the position of the system's sun at different times or the proximity to the gas giant, or may simply be an oversight.
*In ''[[Halo: Combat Evolved]]'', the [[MA5B Individual Combat Weapon System|Assault Rifle]]'s compass arrow points at the gas giant. This suggests that Threshold's atmosphere contains a large amount of ferrous particles, such as iron, or that the assault rifles use a digital compass and that the Alpha Halo happens to be situated so that Threshold is aligned with the rifle's north during the events of the game.
*In ''[[Halo: Combat Evolved]]'', the [[MA5B Individual Combat Weapon System|Assault Rifle]]'s compass arrow points at the gas giant. This suggests that Threshold's atmosphere contains a large amount of ferrous particles, such as iron, or that the assault rifles use a digital compass and that the Alpha Halo happens to be situated so that Threshold is aligned with the rifle's north during the events of the game.


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