OB-255 An'Shara

OB-255, known as the An'Sharan system, is a remote star system with seven planets orbiting a yellow star on the fringes of the Akkani Enclave. More than 280,000 years ago this system was home to the An'Sharan race - the builders of the Scourge - who ruled an empire spanning more than fifty systems across what is now the northern Outback. It was discovered by the USS Dawn Treader under the command of Captain Jackson MacAuliffe, in July 2419.

# Planets

## OB-255/I

**Class:** Y.

**Atmosphere:** Sulfur dioxide, hydrogen cyanide

**Surface temperature:** 250 degrees celsius

**Climate:**

Significant volcanic activity, and major storms. Completely inhospitable to humanoid life.

## OB-255/II An’Shara

**Class:** L, marginal biosphere.

**Orbital Distance:** 1.3 AU

**Atmosphere:** 29% Oxygen, 69% Argon

**Surface temperature:** 25.7 degrees celsius

**Climate:**

Vast deserts with high mountains bordering continental plate lines. Approximately one third of the surface is covered in water, with fringe areas adjacent to these regions having low-diversity sclerophyll forests and scrublands. Frozen poles bring down the average temperature of this planet, with equatorial regions and tropics being in the low to high 30s (on average), with highs of 54 degrees in basin territories. Rotational period is 28 hours.

What should have been a thriving world that teems with various life forms has instead collapsed. The only fauna found on the planet dwelled in subterranean caverns and tunnels, venturing to the surface only for food or water.

## OB-255/III An’Gira

**Class:** L, marginal biosphere.

**Orbital Distance:** 2.4 AU

**Atmosphere:** Nitrogen with high concentrations of Carbon Dioxide. Minimal oxygen.

**Surface temperature:** 35 degrees celsius

**Climate:**

Atmosphere is likely extremely poisonous to humanoid life. May have once been habitable. Surface conditions are similar to OB-255/II, save that there are signs of unstable tectonic activity. Frequent earthquakes are detectable by sensors, which could be related to geological evidence that suggests the planet’s tectonic plates may have been fractured. Large basins and deserts may have once contained water, though the poles do still have a small amount of ice. Rotational period is 22 hours.

## OB-255/IV Kor’Sara-el

**Class:** K, predominantly ice.

**Surface temperature:** -45 degrees celsius

Massive seas are comprised of frozen water are the main feature of this otherwise unremarkable gigantic snowball in space. The sunward side of the planet is around -34 C and has major storm activity driven by warming weather systems, while the night side plunges to temperatures as cold as -90. Rotational period is 183 hours. No life signs detected.

## OB-255/V Balen’kar

**Class:** J, Saturnian.

A gas giant similar in size to Saturn, with a mostly hydrogen atmosphere and long bands of gases with minimal storm activity. No ring system, but plenty of small moons. As many as 54 moons varying in size from planetoids to round bodies can be detected, including one that has liquid seas and relatively moderate temperatures of -120 degrees celsius. Similar, perhaps, to the Jovian moon Europa.

## OB-255/VI Sarji-rel

**Class:** J

Smaller gas giant, with a methane-argon atmosphere. Significant storm activity with wind speeds gusting to 800 km/h around the tropics. This is a violent atmosphere that would be difficult to study with probes. No rings, but it has around 27 moons that are detectable by sensors. Many of these moons are quite resource rich, including dilithium, duranium, tritanium, trellium, and other heavy exotics.

## OB-255/VII Galid

**Class:** D, planetoid.

Unremarkable, and comparable size to Mercury. It’s unremarkable in all respects.