Orbital characteristics
Epoch A2000
Aphelion6.19327 au (926500000 km)
Perihelion5.26224 au (787220000 km)
5.72773 au (856856000 km)
13.7147 a (164.576 months)
12.445 km/s (7.733 mi/s)
Satellites2 natural satellites
5+ operational artificial satellites
Physical characteristics
Equatorial radius
9202.8 km (5718.4 mi)
Polar radius
9046.1 km (5621.0 mi)
Circumference57330.359 km (35623.434 mi) (mean)
(403,940,000 mi2)
Volume3.18202 × 1012 km3
Mass1.86759 × 1025 kg
Mean density
5.8692 g/cm3
14.971 m/s2
16.53 km/s (10.27 mi/s)
6.463 d (155.1 h)
Equatorial rotation velocity
0.10267 km/s (0.06380 mi/s)
Albedo0.268 Bond
Surface temp. min mean max
Celsius -169.2 °C -137.5 °C -112.8°C*excluding volcanic activity
Fahrenheit -272.6 °F -215.5 °F -171.0 °F*excluding volcanic activity
Surface pressure
733.4 kPa (at MSL)
Composition by volume42.3% nitrogen (N2)
34.1% methane (CH4)
12.3% argon
8.7% Helium
2.6% Neon

Bieruta is a terrestrial planet, the fourth from the Sun in the Tendor System, known for its thick atmosphere and higher gravity. Given its distance from the Sun, it is quite cold, averaging temperatures below -130 degrees celcius, though it would be much colder if not for its thick atmosphere and relatively frequent volcanic activity.

The Bierutan surface is primarily comprised of silicate minerals and volcanic rock, while frozen ammonia and carbon dioxide can be found all across the surface. Hydrocarbons and water ice are less common, though not unheard of.

The planet's relatively high gravity and high air pressure makes it mostly unfeasible for any sort of colonization on its surface in the near future, though as with the case of Stratos, its moons are sought after as stepping stone locations for further exploration and colonization of the Tendor System and beyond. Its distance from Anteria means that while it is not impossible to start a base on of of the Bierutan moons, it is quite impractical to do so at the moment, especially since Stratos and its moons are much closer and much more intriguing for scientists and explorers alike.

  1. Includes only substantial moons of Aurious, Nirduk, and Tsanfau.