Arkos Prime

Arkos Prime is a Jupiter-sized rogue gas giant with four large moons. Located over 46 lightyears away from the Sius system, Arkos Prime was a former colony of the Buyuk Empire. The planet itself is a standard hydrogen helium gas giant with orange ammonia clouds.

History
Arkos Prime was the site of one of many raids by the Karalian Empire. What made Arkos Prime particularly noteworthy was that Rustiagon Karrel, king of the Karalian Empire, had oversaw the battle himself.

When the Buyuk escaped from the system, Karrel and his fleet followed for several days eventually being led to a location 10 lightyears outside the Sius system where first contact between the Eteno and Vaikan species took place.

Arkos I
The closest to Arkos Prime, Arkos I displays a large degree of volcanic activity due to the tidal pull of its parent planet and Arkos II.

Arkos II
Arkos II is the largest of the moons being covered entirely in frozen methane.

Arkos III
Arkos III is a rocky world that was nearly destroyed by a rogue comet. Today, it bears an enormous crater that covers an entire quarter sphere.

Arkos IV
Like Arkos III, Arkos IV is a rocky world although it is much smaller. The moon experiences major cryovolcanism; water erupts from below the surface release snow and other particles into the air including extremophile microbes.

Arkos Mining Station
Arkos Mining Station was a remote source of helium-3 for the regions of space surrounding the Moltke Cluster. Because there were no permanent settlements on any of the planet's moons, it was also the only housing establishment in the area.

Connections
Although Arkos Prime does have a jumpgate in orbit, it was fried during Karrel's invasion cutting off the planet from the rest of the empire. It is not currently known where the gate would have led, but some speculate it could have been a region of space 1000 lightyears away.