Altaaya

ME1 · ME2 · ME3 · Andromeda · Series Legendary Editions ME1 · ME2 · ME3
Location	Milky Way / Artemis Tau / Sparta
Altaaya
Basic Information
Type(s)	Lore, Planet
Series	Mass Effect
Location Information
Atmospheric Pressure	0.20
Day Length	47.2 Earth Hours
Orbital Period	18.1 Earth Years
Radius	11,190 km
Surface Gravity	1.7 g
Surface Temp.	-136 °C
Mass	5.194 Earth Masses
Featured in...
Mass Effect

Altaaya is an unusually large terrestrial world with a trade atmosphere of methane and ammonia. The surface is frozen, and mainly composed of sandstone and other sedimentary rocks with deposits of iron and chlorides. Judging by the sedimentary composition of the crust, it appears that Altaaya once possessed an atmosphere thick enough to support some form of liquid. What cataclysm stripped the atmosphere and left the planet to freeze is not currently known.