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| {{Status|Canon}} | | {{Era|Forerunner|Covenant|Human|UNSC|HCW|Post}} |
| {{Planet infobox | | {{Planet |
| |name=Substance | | |name=Substance |
| |image=[[File:Coelest.jpg|265px]]<br>Substance and [[Installation 05]]. Distances are not to scale. | | |image=[[File:Coelest.jpg|265px]]<br>Substance and [[Installation 05]]. Distances are not to scale. |
| |system=[[Coelest system]]{{Ref/Reuse|evg}}{{Ref/Book|Id=Enc22P346|Enc22|Page=346}} | | |star, position= [[Coelest system|Coelest]], IV |
| |body=[[Coelest]]{{Ref/Reuse|evg}}
| | |satellite(s)= 8 <ref name="evg"/> |
| |position=Fourth planet{{Ref/Reuse|evg}}
| | *[[Opusculus]] <ref>'''Halo: The Essential Visual Guide''', ''page 46''</ref> |
| |moon(s)=[[Opusculus]]<ref>'''[[Halo: The Essential Visual Guide]]''', ''page 46''</ref>{{Ref/Reuse|Enc22P346}} | | *[[Installation 05]] |
| |diameter={{Convert|82749|km|mi|sp=us}}{{Ref/Reuse|evg}} | | |diameter= {{Convert|82.749|km|mi|sp=us}} <ref name="evg"/> |
| |gravity= | | |composition= ;Gas: [[hydrogen]], [[helium]], [[methane]] |
| |daylength=
| | ;Liquid: [[ammonia]], [[water]] <ref name="evg"/> |
| |yearlength=
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| |atmosphere=;Gas: [[hydrogen]], [[helium]], [[methane]]{{Ref/Reuse|evg}}
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| ;Liquid: [[ammonia]], [[water]]{{Ref/Reuse|evg}} | |
| |temperature=
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| |demonym=
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| |colonized=
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| }} | | }} |
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| '''Substance''', also referred to as '''Coelest IV'''<ref name="lootcrate8">'''[[Halo Legendary Crate]]''', ''[[Halo Legendary Crate/Data Drops|Data Drop #8]]''</ref>, is a blue-white ice giant in the [[Coelest system]].{{Ref/Reuse|Enc22P346}}{{Ref/Reuse|evg}} It is the fourth planet in the system and is the planet which [[Installation 05]] orbits.<ref name="evg">'''Halo: The Essential Visual Guide''', ''page 190''</ref>{{Ref/Reuse|Enc22P346}} Substance is orbited by eight satellites, only one of which, [[Opusculus]], is a natural [[moon]]. The rest include Installation 05, and six dormant [[Forerunner]] facilities on predetermined orbital paths.{{Ref/Reuse|Enc22P346}}{{Ref/Reuse|evg}} An [[asteroid]] field is located close to Substance at 2.4 AU from Coelest.<ref>'''[[Halo: Ghosts of Onyx]]''', ''page 189''</ref> | | '''Substance''' is a greenish-blue gas giant in the [[Coelest system]]. It is the fourth planet in the system and is the planet which [[Installation 05]] orbits. Though it masses more, it is similar to the planet [[wikipedia:Uranus|Uranus]] in color and composition, being classified as an ice giant.<ref name="evg">'''Halo: The Essential Visual Guide''', ''page 190''</ref> Substance is orbited by eight satellites, only one of which, [[Opusculus]], is a natural moon. The rest include Installation 05, and six dormant Forerunner facilities on predetermined orbital paths.<ref name="evg"/> |
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| Unlike on [[Installation 04]], where its parent planet [[Threshold]] could be seen quite clearly, especially at night,<ref>'''[[Halo: Combat Evolved]]''', campaign level ''[[The Truth and Reconciliation]]''</ref> on Installation 05, Substance is very difficult to see in the sky of Installation 05. In fact, in none of the locations on this ring seen by [[United Nations Space Command|UNSC]] forces (namely the [[Control Room (Installation 05)|Control Room]], the [[Library]], and various ruined structures) can the planet be seen. This is due to the Delta Halo's stormy weather conditions caused by a [[Flood]] outbreak that occurred some two centuries before the [[Battle of Installation 05]].{{Ref/Reuse|evg}} During the [[Great Schism]] that began on Installation 05, [[Sangheili]] and [[Jiralhanae]] vessels battled each other over Substance.<ref>'''Halo: Ghosts of Onyx''', ''page 199''</ref> | | Unlike on [[Installation 04]], where its parent planet [[Threshold]] could be seen quite clearly, especially at night,<ref>'''Halo: Combat Evolved''' level, ''[[The Truth and Reconciliation]]''</ref> on Installation 05, Substance is very difficult to see in the sky of Installation 05. In fact, in none of the locations on this ring seen by [[United Nations Space Command|UNSC]] forces (namely the [[Control Room (Installation 05)|Control Room]], the [[Library]], and various ruined structures) can the planet be seen. This is due to the Delta Halo's stormy weather conditions caused by a [[The Flood|Flood]] outbreak that occurred some two centuries before the [[Battle of Installation 05]].<ref name="evg"/> |
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| Weeks after the battle and the subsequent [[Fall of High Charity]], the {{UNSCShip|Coral Sea}} picked up [[Alo Sebukah|a dying San'Shyuum]] aboard a skiff drifting in a debris field irregularly orbiting Substance.<ref name="lootcrate8">'''[[Halo Legendary Crate]]''', ''[[Halo Legendary Crate/Data Drops|Data Drop #8]]''</ref>
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| ==Trivia== | | ==Trivia== |
| *While not named during ''Halo 2'', the file containing the planet's graphics were found to be named "Substance". Similarly, there was a file called "[[Threshold]] and [[Basis]]" in ''[[Halo: Combat Evolved]]''.<ref>[http://forums.bungie.org/halo/archive24.pl?read=700986 '''halo.bungie.org''': ''Re: Halo Wikipedia entry improvement questions'']</ref> The planet was first officially identified in ''[[Halo: The Essential Visual Guide]]''.
| | While not named during ''Halo 2'', the file containing the planet's graphics were found to be named "Substance". Similarly, there was a file called "[[Threshold]] and [[Basis]]" in ''[[Halo: Combat Evolved]]''.<ref>[http://forums.bungie.org/halo/archive24.pl?read=700986 '''halo.bungie.org''': ''Re: Halo Wikipedia entry improvement quastions'']</ref> The planet was first officially identified in ''[[Halo: The Essential Visual Guide]]''. |
| *The ''[[Halo Encyclopedia (2009 edition)]]'' incorrectly states that [[Installation 04]] orbits Substance. This error was not corrected in the 2011 edition.<ref>'''[[Halo Encyclopedia (2009 edition)]]''', ''page 185''</ref>
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| ==Gallery==
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| <gallery>
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| File:H2A - DeltaHalo.jpg|Substance and [[Installation 05]].
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| File:H2A - In Amber Clad approaches Halo.png|{{UNSCShip|In Amber Clad}} approaches Substance and Installation 05.
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| File:H2A - Great Schism.jpg|[[High Charity]] over Substance.
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| File:H2A - Battle of Delta Halo.jpg|Installation 05's firing sequence being canceled over the planet.
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| File:H2A-Substance From Delta Halo.png|Substance seen from the surface of Installation 05.
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| </gallery>
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| ==List of appearances== | | ==List of appearances== |
| *''[[Halo 2]]'' {{1st}} | | *''[[Halo 2]]'' {{1st}} |
| *''[[Halo: Ghosts of Onyx]]'' | | *''[[Halo: Ghosts of Onyx]]'' |
| *''[[Halo: Broken Circle]]''
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| *''[[Halo 2: Anniversary]]''
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| *''[[Halo Mythos]]'' {{Mo}}
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| ==Sources== | | ==Sources== |
| {{Ref/Sources}}
| | <references/> |
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| [[Category:Planets]] | | [[Category:Planets]] |
