Typhon Solar-system

• Orbital Distance:  0.2 AU
• Orbital Period:  0.1 Earth-years
• Keplerian Ratio:  0.8
• Radius:  23,307 km
• Day Length:  14.7 Earth-hours
• Atmospheric Pressure:  N/A atm
• Surface Temp:  N/A °C
• Surface Gravity:  N/A g
• Mass:  N/A Earth-masses

A so-called “hot Neptune” planet, Echidna rapidly orbits the star Typhon at a nose-to-nose distance much like a pegasid, or “hot Jupiter.” Also like the pegasids, it is believed to have formed further out and gradually migrated to its present position. Its core is higher in rock content than Sol‘s Neptune, the consequence of attracting asteroids and other debris as it journeyed through its solar system.

• Orbital Distance:  1.4 AU
• Orbital Period:  1.7 Earth-years
• Keplerian Ratio:  0.949
• Radius:  5,941 km
• Day Length:  24.9 Earth-hours
• Atmospheric Pressure:  0.6 atm
• Surface Temp:  20 °C
• Surface Gravity:  0.88 g
• Mass:  0.758 Earth-masses
• Satellites:  2
• Colony:  Adrasteia (capital, disputed), founded 2104 CE, population 1,540,000

Aite is an Earth-like world with a variety of habitable land ranging from deserts to jungles to tundra. It also possesses faint rings, an unusual feature for a non-giant planet. The rings contain rocks up to a meter in length and a wide dust cloud that stretches nearly 23,000 km from the center of the planet.

This impressive celestial phenomenon, however, is dwarfed by the fact that Aite’s largest moon, Litae, is in an unstable orbit and is predicted to impact the planet within the next two centuries. Knowing that any Aitian venture is living on borrowed time, colonial population and investment has been orders of magnitude less than other garden worlds.

Codex Entry

“Two beautiful moons, one spectacular ring, zero neighbors,” says a popular advertisement for this Terminus Systems world. Aite is known for its sparsely settled population despite being a garden planet with a colony nearly a century old. Blessed with a mild climate, wildlife no more dangerous than that on Earth, and soil and bacteria amenable to imported plants, Aite would appear to be an unexploited paradise.

However, it is unpopular for two reasons. The first and most obvious is that its moon, Litae, is in an unstable orbit that will lead to a planetary impact and an extinction-level event within the next two centuries. As such, all investment in the planet is short-term, and the biggest business is selling off the local biota to the highest bidder.

The second drawback is the level of violence on the planet. Like the rest of the Phoenix Massing cluster, Aite was briefly considered part of Citadel space during its first wave of colonization. However, when the colony broke off to become an independent planet in 2133, the Council let the doomed planet go with less than a day of debate. Free from any real governing body, Aite’s history has since been filled with wars between small frontier-town city-states over its resources. The result is a dangerous world where the average citizen is expected to be self-reliant to the point of fending for themselves against cutthroat corporations, strong-arm militia groups, and even geth incursions. The fighting is so frequent that the name of the planet itself has changed more than eleven times. In a sign of blunt indifference, standard Citadel galaxy maps refer to the world by the name given to it by human colonists in the latter half of the century.

• Orbital Distance:  2.9 AU
• Orbital Period:  4.9 Earth-years
• Keplerian Ratio:  1.016
• Radius:  4,025 km
• Day Length:  60.7 Earth-hours
• Atmospheric Pressure:  0.16 atm
• Surface Temp:  −73 °C
• Surface Gravity:  0.35 g
• Mass:  0.138 Earth-masses
• Colony:  founded 2150, no capital, population 27,800

Moros is a small rock planet with a thin nitrogen and carbon monoxide atmosphere. Each city-state of Aite claims the rights to exploit the planet for its heavy metal deposits; individual city-state governments maintain three small habitats on Moros, as far away from one another as possible. Nevertheless, the planet’s wars have extended here, and the habitats infrequently send commando teams to assault each other in small-unit actions.

TRAVEL ADVISORY:  The inhabitants of Moros have set large numbers of antipersonnel and antivehicular mines at common choke points across the planet. Records of the mines’ locations are extremely unreliable. Civilian travel is not advised.

• Orbital Distance:  5.8 AU
• Orbital Period:  14.0 Earth-years
• Keplerian Ratio:  0.995
• Radius:  69,740 km
• Day Length:  14.4 Earth-hours
• Atmospheric Pressure:  N/A atm
• Surface Temp:  N/A °C
• Surface Gravity:  N/A g
• Mass:  N/A Earth-masses

Ponos is a typical hydrogen-helium gas giant. Its once-vital helium-3 refining machinery in orbit around the planet was destroyed in one of Aite’s many wars, and Aite’s extraplanetary trade suffered severely as a result. The dictators of Aite are not pleased with this situation, but they consider it a bad strategic move to be the first to start work on a refinery before eliminating any chance of other nations (or planets) seizing it.