Okoro

Okoro in all its glory

### Atmospheric Composition

He: 0.0100%N: 0.2000%O: 1.1000%CH₄: 0.0500%H2O: 3.0000%Ne: 1.2000%N2: 66.3000%CO: 0.0010%NO: 0.0020%O2: 25.1000%H2S: 0.0070%Ar: 1.2000%CO2: 0.5000%N2O: 0.0001%NO2: 0.0001%O3: 0.0005%SO2: 0.0003%SO3: 0.0001%Kr: 0.8500%Xe: 0.4789%

## Miscellaneous

### Interesting Characteristics

Deep subglacial ocean

Okoro is the innermost major moon of Jevethra of the Verda System. As the last member of Jevethra's original moon system to survive to the modern day intact, Okoro is the most watery of the moons of Jevethra, with a thick partially melted ice shell and an enormous subglacial ocean. The moon is a highly populous world of the Verdan Federation.

## Physical Characteristics

Okoro is primarily covered in icy desert, retaining its outer system ice into the temperate zone by virtue of a high albedo reflecting away the majority of Verda's sunshine and giving it a much colder temperature than other objects in its vicinity. Very recently on geological timescales however, a small impact deposited enough dark material onto the crust to heat it beyond the melting point, starting a chain reaction which continues to this day to melt the moon. It is likely that the moon will fully melt in the coming millennia.

## Life

Okoro has seemingly native life within its oceans, probably panspermiated from Teralla rather than evolving natively. Although it may have had bacterial life in its primordial sealed subglacial ocean, such an ecosystem would have been overwritten by the introduction of several Terallan species of bacteria after Okoro's ocean began to open. This "native" life has been supplemented since colonization with the careful introduction of several Terallan multicellular ocean organisms.

## History

Initially surveyed by the *Kelelai* orbiter as well as a lander from the follow-up *Kasran*, Okoro's first manned landing was the *Epicco Trek*, a long-range exploratory mission with the Jevethra system only as its first stop. The *Kasran* landing site detected a mostly sterile surface under a thin oxygenated atmosphere, but the *Trek* 's oceanic landing confirmed the presence of multicellular life forms in its oceans.

Afterwards, the moon was one of the last to be colonized of the Jevethra system, with floating cities on the oceans being assembled. The metropolis of Tanagra became Okoro's capital city, engulfing smaller floating cities nearby and becoming a megalopolis containing nearly a third of the lunar population. From that first landing to the modern day, Okoro's ocean has expanded by nearly a third.

During the Tyran War, much of Tanagra's population fled to the outer territories of the Federation, leaving it a ghost town in disrepair. The brief occupation of the Verda System depleted the moon's population even more alongside the rest of the system, and only now is the population recovering and Tanagra being repaired.

In the modern day after its long and difficult history, Okoro has risen back to prominence as a key world in the Verdan Federation's core, coming out from the shadows of Shirus and Teralla.

## Population

Okoro, due to its unique surface conditions, was difficult to colonize in the first place, and even more so to recolonize after much of its population fled during the Tyran War. As such, its surface population is fairly low and over 60% of the capital city of Tanagra is completely empty.

Okoro's orbit around Jevethra prohibits many stable orbits from existing around it, and one of the only orbital presences is the spaceport stationed at its L2 point. Its lagrangian points have large clouds of habitat stations, adding up to 40 times the population of the moon itself.