Gliese 667

A triple-star system in the Inner Sphere

Gliese 667 - Another view
The three stars of this system as seen from the surface of the hot-water-world GL 667 Cb

Gliese 667 - Data Panel

StarGliese 667 A/B/C (triple star; A+B are separated from each other by 12 AU; both are separated from C at a distance of 140 AU)
Constellation: Scorpius
Distance: from Sol 22.1 ly
Spectral types: K3/K5/ M2 red dwarf
Planet Cb8.45 x mass of the Earth:
radius 2.49 x Earth:
orbit 0.049 AU:
year = 7.201 standard days:
surface gravity 1.359 g:
a large vesperian Pyrohydrothalassic world with a rapidly rotating atmosphere
Planet Cc7.62 x mass of the Earth:
radius 2.03 x Earth:
orbit 0.123 AU:
year = 28.638 standard days:
surface gravity 1.844 g:
a lifeless Super-terrestrial world with a thick atmosphere dominated by helium
Planet Cd0.016 x mass of Jupiter:
radius 0.3 x Jupiter:
orbit 0.235 AU:
year = 75.628 standard days:
skolian Gas Dwarf and most populous planet of the system
Planet Ce0.2 x mass of Jupiter:
radius 0.58 x Jupiter:
orbit 1.481 AU:
year = 3.276 standard years:
subJovian with a strong magnetic field


The multiplanet system around Gliese 667C was detected early in the Information Age, and garnered interest with a superterrestrial located in the habitable zone. Follow up observations indicated the planet was in fact lifeless. An unmanned interstellar probe to explore this system was launched in 505 AT. By the time the probe reached the system two centuries later SolSys was in the nadir of a Dark Age, leading to a failure of established live-man triggers and only the most preliminary data being relayed back.

The system was colonized by federationists in 1109. Clan Yall allowed the Genen to establish a presence in the system early on. They preferred to concentrate on studying and designing aesthetically pleasing ecosystems that at the same time could survive without intervention. Clan Yall's expertise in ecosystem building was instrumental in the creation of Neo-helix in the neighboring system; a fact they feel is often ignored when comparing the accomplishments of House Genen families.

The transition between the end of the first federation and the rise of the megacorporations was a particularly difficult one for this system. Clan Yall experienced extensive in-fighting, that often spilt over into proxy wars involving client populations throughout Gliese 667. Waves of sectarian radicalization occurred, with anti-transapient and pro-anthropist sentiment becoming entrenched. The entire system became a backwater of sorts for the next millennium.

Gliese 667 returned to the galactic stage in 3901 when it was the chosen neutral site for a conference to negotiate an end to the Conver Wars. While this conference failed to meet the lofty goals set out for it, this initial conference did set the groundwork for the Ian Treaty of 3932. Both the Ambi Limis and the Geminga Orthodoxy remembered this humanitarian effort on behalf of their citizens and retained close ties to the system.

By the Age of Crisis most the larger moons had been set aside as nature reserves, and the population had shifted to exclusively living in orbitals or bubblehabs.

Numerous coalitions arose at this time, the largest being the colorfully named Confederation of the Million Floating Eyots. The current population in cosmopolitan in composition. Of note, the system supports large populations of Neanderthals, Grays, and Raffins.

Gliese 667
GL 667 Cb, another view

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Development Notes
Text by Mark Ryherd
Initially published on 21 May 2012.