System Specs:
- Stellar Mass: 0.968 Sol Masses
- Stellar Class: G
- Luminosity: N/A Sol
- Planets: 5
- Moons: 0
- Asteroid Belts: 1
- Asteroids: 0
- Objects: 0
Prerequisite: Priority: The Citadel II (Mass Effect 3)
Ialessa is a system in asari territory. Sanves is the only habitable terrestrial world in the system and a tourist destination, and Zylium acts as a refueling spot and auxiliary hospitality sector.
The system has little else in terms of resources other than copper deposits in Nossia. Of particular note is a planet-encircling supercollider in Trikalon that’s targeted by the Reapers only days after its first activation.
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Planets Directory:
- Ilmnos
- Sanves
- asteroid belt
- Zylium
- Trikalon
- Nossia
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Ilmnos:
- Orbital Distance: 0.5 AU
- Orbital Period: 0.4 Earth-years
- Keplerian Ratio: 0.781
- Radius: 6,528 km
- Day Length: 22.5 Earth-hours
- Atmospheric Pressure: Trace atm
- Surface Temp: 183 °C
- Surface Gravity: 0.83 g
- Mass: 0.863 Earth-masses
The once-rich thorium reserves of Ilmnos have long been mined out, mostly by remote asari drones that operate well enough in the planet’s heat and trace atmospheric pressure. There is little reason to visit this harsh world unless further deposits are discovered.
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Sanves:
- Orbital Distance: 1.4 AU
- Orbital Period: 1.6 Earth-years
- Keplerian Ratio: 1.072
- Radius: 7,484 km
- Day Length: 51.8 Earth-hours
- Atmospheric Pressure: 0.96 atm
- Surface Temp: 25 °C
- Surface Gravity: 0.95 g
- Mass: 1.298 Earth-masses
- Colony: Asari
Capital: Etheai, founded 544 BCE, population 975,000,000
The hospitable nitrogen-oxygen atmosphere, temperate-climate and sprawling wilderness of Sanves made the planet a popular tourist destination. Large tracks of untamed forest surrounding the capital drew in millions of sightseers, game hunters, and biologists. The asari, mindful of how rapid expansion has damaged the ecologies of other planets, restricted settlements.
After destroying the colony’s navy and antiair defenses, Reapers landed infantry units to subjugate the local population. Destroyers keep watch in orbit, the capital ships apparently elsewhere fighting bigger battles.
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Zylium:
- Orbital Distance: 5 AU
- Orbital Period: 11.2 Earth-years
- Keplerian Ratio: 0.996
- Radius: 63,511 km
- Day Length: 9.8 Earth-hours
- Atmospheric Pressure: N/A atm
- Surface Temp: N/A °C
- Surface Gravity: N/A g
- Mass: N/A Earth-masses
The hydrogen-helium gas giant Zylium once provided fuel for ships flying to and from Sanves. The equipment here was noted for its efficiency. Business flourished in its orbital stations, which promised roomy bunks, hydroponic food and attention from charming asari hostesses while ships refueled. These stations are now blasted metal. There is no fuel, aid, or comfort here.
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Trikalon:
- Orbital Distance: 10 AU
- Orbital Period: 31.7 Earth-years
- Keplerian Ratio: 0.995
- Radius: 1,905 km
- Day Length: 59.4 Earth-hours
- Atmospheric Pressure: Trace atm
- Surface Temp: −87 °C
- Surface Gravity: .25 g
- Mass: 0.022 Earth-masses
Trikalon is a small rock planet that was home to a centuries-old asari venture called the Tirii Supercollider. This massive particle accelerator encircled the entire planet at an orbital distance. When political sea change among the Asari Republics led to funding cuts, human scientists stepped in with the credits and labor to finish the project, renaming it the Susskind Supercollider. It came online just days before the Reapers invaded the galaxy.
When the Reapers entered the system, they dispatched a swarm of capital ships toward Trikalon, treating the supercollider as a greater threat than the asari naval fleet stationed at Sanves. They blasted it apart, sending debris hurtling to Trikalon’s surface. Several ships carrying supercollider staff escaped before the Reapers hit.
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Nossia:
- Orbital Distance: 18.7 AU
- Orbital Period: 81.1 Earth-years
- Keplerian Ratio: 0.994
- Radius: 10,909 km
- Day Length: 54.1 Earth-hours
- Atmospheric Pressure: Trace atm
- Surface Temp: −146 °C
- Surface Gravity: 0.76 g
- Mass: 2.207 Earth-masses
Scans show little of value on Nossia, aside from sizable copper deposits near the equator. The only landmark of note is the wreck of a krogan freighter, a remnant of attacks on the system during the latter half of the Krogan Rebellions.
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