Editing Rosharan system

{{planetary system
|image=starchart_roshar_color.jpg
|shards=[[Honor]], [[Cultivation]], [[Odium]]
|planets=[[Ashyn]], [[Roshar]], [[Braize]] 
|universe=[[Cosmere]]
|books=[[The Stormlight Archive]]
}}
{{update|sa4}}
{{quote
|Roshar (which--characteristic of the dominant confidence of its people--is the name of a planet, a system, '''and''' the main continent on the planet) is a busy place. As empty as the [[Scadrian system]] seems, this one always feels crowded to me.
|From [[Khriss]]' essay on Roshar{{au ref|Roshar}}
}}
The '''Rosharan system''', also known as '''Greater Roshar''', is the name given to the planetary system containing the [[Cosmere#Planets|planet]] called [[Roshar]].{{au ref|Roshar}} It comprises thirteen planets, three of which are inhabited, as well as the usual asteroid belt, and three moons for a total of sixteen orbital bodies -- an important number in the [[cosmere]].{{map ref|Roshar system}}


== The Sun ==
The centre of the system is situated a large sun around which all of the planets orbit.{{wob ref|7966}} Though it is smaller than [[UTol system|UTol's sun]].{{book ref|yumi|35}}

== Planets ==
The Greater Roshar system is composed of three terrestrial planets and ten gas giants, divided by the asteroid belt. From the sun, the planets in the system are:
=== Ashyn ===
'''[[Ashyn]]''' is the closest planet to the Rosharan system's sun. 

While there are humans inhabiting this planet, a global cataclysm at some point in the past has forced most of its inhabitants to flee to Roshar, while the remainder lives in floating cities in the sky and in small areas of habitability.{{au ref|roshar}}{{book ref|tsm|2}}{{wob ref|9847}} The cataclysm was likely caused by overuse of [[Surge]]s by Ashynites, and has left the surface highly volcanically active. There is a known manifestation of Investiture on Ashyn, based around Surge-granting diseases, but no known Shard.{{wob ref|6646}} In Rosharan mythology, Ashyn is referred to as the [[Tranquiline Halls]].{{book ref|row|17}}

Ashyn has a notable axial tilt, allowing it to experience seasonal variation.{{wob ref|11448}} 

It is visible in the sky from Roshar.{{book ref|sa4|80}}

{{image|Inner Rosharan System by Art Noob.jpg|The inner Rosharan system|side=right|width=400px}}

=== Roshar ===
'''[[Roshar]]''' is the second planet is the eponymous planet of Greater Roshar. The [[Shard]]s of [[Honor]] and [[Cultivation]] can be found here. Roshar features a single supercontinent, also called Roshar, on which its inhabitants live. Its semi-major axis is such that it has an orbital period of approximately 1.1 years.{{wob ref|8928}}{{wob ref|3781}}{{wob ref|5569}}{{wob ref|10572}}

Roshar has a surface gravity or approximately 0.7g, and a radius of approximately 5663 kilometres, just under 0.9 cosmere standard.{{au ref|roshar}}{{wob ref|10231}} The planet has a substantial atmosphere, and has a partial pressure of oxygen that is higher than standard cosmere.{{au ref|roshar}}{{wob ref|1806}}

Roshar has no axial tilt.{{wob ref|11448}} It has a solar day of twenty Rosharan hours, and rotates around five-hundred times every orbit.{{wob ref|248}}

Three moons, [[Roshar#Planetary System|Salas, Nomon, and Mishim]], orbit the planet in unstable, highly eccentric orbits.{{map ref|Roshar system}}{{wob ref|8096}}{{wob ref|12702}}

The majority of the Rosharan System's sentient lifeforms lives on Roshar.

=== Braize ===
'''[[Braize]]''' is the third planet from the Rosharn system's sun.{{book ref|sa4|80}}{{map ref|Roshar system}} It is a cold planet, perhaps outside the habitable zone. While no humans live here, there do exist self-aware Splinters that inhabit either the planet or its Cognitive manifestation.{{au ref|Roshar}} Braize is where the Shard of [[Odium]] resides.{{wob ref|9847}} In Rosharan mythology, Braize is referred to as [[Damnation]], and is where Rosharan Heralds returned to between [[Desolation]]s.{{book ref|sa3|121}}

The land is cold, barren, and inhospitable to all biological life;{{book ref|sa4|80}} it is constantly swept by winds.{{book ref|sa4|80}} Its atmosphere is much thinner than Roshar's.{{book ref|sa4|80}}

Like Ashyn, it is visible in the sky from Roshar.{{book ref|sa4|80}}

=== Gas Giants ===
Beyond the asteroid belt are ten gas giants. These outer planets, which are designated by [[Ten Essences|Vorin numerals]], are '''Jes''', '''Nan''', '''Chach''', '''Vev''', '''Palah''', '''Shash''', '''Betab''', '''Kak''', '''Tanat''', and '''Ishi''', in order of increasing distance from the sun. 

The existence of ten of these, and the relation it has to the importance of 10 to Honor and the Rosharan System, is currently unknown.{{wob ref|2745}}{{wob ref|14144}}

The Rosharan gas giants have a minor presence on Shadesmar, which indicates that they are uninhabited.{{au ref|roshar}}{{wob ref|1540}}{{wob ref|2262}} None of these planets have known moons or ring systems.{{map ref|Roshar system}}{{wob ref|13014}}

== Astronomy ==
In the greater Cosmere, the Rosharan system lies between [[Taldain]], [[Scadrial]], [[Nalthis]] and [[Sel]], and is the closest to the latter. It is one of the stars in the Knight constellation.{{file ref|Cosmere constellation map.jpg|Cosmere constellation map}}{{wob ref|8089}} In the [[Cognitive Realm]], Shadesmar is surrounded by four Expanses; the [[Expanse of the Vapors]] leads to Scadrial, the [[Expanse of the Densities]] leads to Sel, and the [[Expanse of Vibrance]]{{wob ref|4805}} is believed to lead to Nalthis.{{wob ref|12656}} It is currently unknown which planet the [[Expanse of the Broken Sky]] leads to.{{map ref|shadesmar}}

== Inhabitants ==
The Rosharan system is inhabited by several sentient species. This includes humans on both Ashyn and Roshar; [[Singers]], [[Siah Aimian]]s and the [[Sleepless]] on Roshar; and a vast number of sentient [[spren]]. Braize also contains a large population of [[Cognitive Shadow]]s of Singers, called the [[Fused]], who migrate to Roshar during [[Desolation]]s.

It is likely that Roshar saw several waves of human immigration, as the [[Iriali]] may be later arrivals than other Rosharan humans.{{wob ref|1516}}

== History == 
The Rosharan system was created prior to the [[Shattering]], and was crafted directly by Adonalsium about 12 to 13 thousand years before the True Desolation.{{epigraph ref|sa2|66}}{{wob ref|9283}}{{wob ref|14898}}{{ref|group=fn|text=Whether this refers to standard years or Rosharan years is currently unclear.}}
The system was created for a specific purpose.{{wob ref|12702}} The Rosharan spren [[Stormfather]] and the [[Singers]] likely predate it as well.

After the Shattering, the Shards Honor and Cultivation settled on Roshar, becoming the gods of Singer people. Humans initially settled on Ashyn, but following the destruction of its environment, migrated to Roshar, and were granted the land that comprises modern [[Shinovar]]. The Shard Odium arrived on Roshar alongside them, and while the Singers believe it to be the human god, the exact relation is unclear.{{book ref|sa3|111}} Honor trapped Odium in the system by unknown means, and the shard settled on Braize. However, when the relationship between humans and Singers deteriorated to the point of war, Odium took the Singers under his wing, creating the first Fused and starting the cycle of Desolations, periodic invasions of Roshar.{{book ref|sa1|part=prelude}} During that time, Honor was killed by Odium, but his pact with Odium, along with the [[Oathpact]] that governs the Desolations, prevented Odium from leaving the system.{{book ref|sa3|57}}

Over the past 4500 Rosharan years, the Rosharan system has enjoyed a period of relative stability, although this ended with the start of the [[True Desolation]].

== Mythology ==
Several of the Rosharan system's celestial bodies have legends associated with them.

=== The planets ===
Ashyn, though not known by that name to Roshar's inhabitants, is likely the [[Tranquiline Halls]], the mythological homeworld of mankind in the [[Vorinism | Vorin]] creation myth. Rosharans believe that after death, they will fight to reclaim them from the [[Voidbringers]], and that this is where the Heralds departed to following the [[Aharietiam]]. Braize, on the other hand, is a known name for [[Damnation]], the place where, in Rosharan myths and legends, Voidbringers live. In Vorin cosmology, Damnation is the afterlife for particularly wicked souls.{{book ref|sa1|3}}

=== The moons ===
{{for|Tsa|the full [[Natan]] myth about Mishim}}

Many Rosharan cultures personify the three moons as semi-divine beings. In [[Shinovar]], they are known as the Three Sisters, with Salas being the First Sister, Nomon the Second Sister, and Mishim the Third Sister. In [[Natanatan]], Nomon is considered to be male.

A particular myth from Natanatan concerns the latter two moons and the local queen, [[Tsa]]. In the story, Mishim (characterized as young and impulsive) wishes to experience human pleasures, and attempts to persuade Tsa to swap places with her. Tsa eventually relents, agreeing to take Mishim's place for one night. However, Mishim fails to return before dawn, and fears that Tsa will tell her older siblings about the ruse. The following night, she attempts to go back, only to find out that Tsa enjoys her time in the night sky too much to switch back. While Mishim manages to convince Tsa to return, nine months later the queen gives birth to a blue-skinned child. Mishim realizes that she's been conned, and Tsa wanted to visit the night sky all along, as she wished to lay with Nomon.{{book ref|sa3|67}}

The legend serves as an explanation for the Natan people's unusual skin tone.

== Notes ==
;Footnotes
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;References
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[[Category: Cosmere celestial bodies]]
[[es:Sistema roshariano]]