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Planet View
Orbital Distance 0.8 AU
Orbital Period 1.3 Earth Years
Keplerian Ratio 0.303
Radius 5,806 km
Day Length 37.6 Earth Hours
Atm. Pressure 0.64 atm
Surface Temp −119 °C
Surface Gravity 0.66 g
Mass 0.543 Earth Masses
Satellites N/A

Location: Milky WayCrescent NebulaOndeste System First planet

Species Asari
Population 620
Prerequisite: Horizon (mission) (Mass Effect 2)


Cold, dim, and shrouded by a methane-ammonia atmosphere, Zesmeni has nevertheless attracted development by asari mining concerns that service military industries. There are significant lodes of valuable light metals present, including titanium and lithium. Titanium is the primary material used in mass accelerator slugs, and lithium is used in the military-grade "droplet" heat radiators used aboard warships.

Mineral DepositsEdit

Initial Scanner Result: Rich

Mineral Amount Approximate Value
Palladium High 14,500
Platinum Medium 5,800
Iridium Medium 7,000
Element Zero None 0

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