Tendor System

Tendor System
The Sun and planets of the Tendor System
(distances not to scale)
Age4.568 billion years
locationOmicron Cloud
system_mass1.0014 Solar masses
Nearest starTBA
Nearest planetary systemTBA
Planetary system
Semi-major axis of
outer known planet (Tsanfau)
~19.43 AU
Distance to Kuiper cliff50 AU
Stars1 (Sun)
Known planets
Known dwarf planetsPossibly several hundred; none currently recognized by the AISC
Known natural satellites472
(175 planetary 297 minor planetary)
Known minor planets653,215 (as of 2018-03-23)
Known Comets4,521 (as of 2018-03-23)
Identified rounded satellites13
Orbit about Galactic Center
plane inclination
60.19° (ecliptic)
Distance to Galactic Center27,000 ± 1,000 ly
Orbital speed220 km/s (140 mi/s)
Orbital period225–250 Myr
Star-related properties
Spectral typeG2V
Frost line≈5 AU
Distance to heliopause≈120 AU
Hill sphere radius≈1–3 ly

The Tendor System is the gravitationally bound system comprising the Sun and the objects that orbit it. Of those objects that orbit the Sun directly, the largest six are the planets with the remainder being smaller objects, such as dwarf planets and small Solar System bodies.


A planet is an astronomical body orbiting a star or stellar remnant that

  • is massive enough to be rounded by its own gravity,
  • is not massive enough to cause thermonuclear fusion, and
  • has cleared its neighbouring region of planetesimals

There are six planets within the Tendor system. The four terrestrial or inner planets have dense, rocky compositions, few or no moons, and no ring systems. They are composed largely of refractory minerals, such as the silicates, which form their crusts and mantles, and metals, such as iron and nickel, which form their cores. The two outer planets, or gas giants, consist overwhelmingly of hydrogen and helium, both gas giant planets have rings which are easily observable. Aurious, which has the more prominent rings mainly consist of dust, rock and particles range in size from micrometers to meters while the smaller and less prominent rings of Tsanfau mostly consist of ice and some radiation-processed organics.

  Planet *Slahonus *Anteria *Stratos *Bieruta *Aurious *Tsanfau
  Planet Visual SlahonusPlanet.png AnteriaPlanet.png StratosPlanet.png BierutaPlanet.png AuriousPlanet.png TsanfauPlanet.png
Astronomical symbol Slahonus Anteria Stratos Bieruta Aurious Tsanfau
Mass M⊕ 0.1040 ~1 ~0.9076 ~3.1264 ~214.7 ~15.3
Semi-major Axis AU ~0.289 ~1 ~2.435 ~5.728 ~9.84 ~19.43
Orbital Period years ~0.155 ~1 ~3.798 ~13.706 ~30.86 ~85.6
Sidereal Rotation Period days ~56.887 ~1 ~1.0512 ~6.4632 ~0.393 ~0.7
Atmospheric composition O2, Na, K N2O2, Ar, CO2 N2, CH4, Ar N2, CH4, Ar, He, Ne H2, He, CH4 H2, He, H2O, NH3
Number of known moons 0 1 3 2 34 23
Rings? No No No No Yes Yes
  1. Includes only substantial moons of Aurious, Nirduk, and Tsanfau.