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Njotai

WIP System for the worldbuilding project that I am working on.

The primary world of Li Yeivon has a custom height map.

Njotai Star System
The Star: Njotai
A warm orange K-type star.
*Mass: about 83% of the Sun
*Brightness: about 51% of the Sun
*Size: about 91% of the Sun’s diameter
*Temperature: 5,111 K

Xunakst (Planet I)
A small, airless rocky world with no moon.
*Mass: 0.40 × Earth
*Orbit: 0.133 AU from Njotai
*Type: Mercury-like

Strovin (Planet II)
Rocky world with one small moon.
*Mass: 0.11 × Earth
*Orbit: 0.325 AU

Medarfen (Planet III)
Rocky world with two small moons and a Venus-like, heavy atmosphere.
*Mass: 0.16 × Earth
*Orbit: 0.507 AU

Li Yeivon (Planet IV) — Primary Setting World
Rocky, Earth-type world with one large moon, Vonae.
*Mass & Size: ~1.2 × Earth’s mass; ~1.05 × Earth’s radius
*Gravity: ~1.09 × Earth’s gravity at sea level
*Orbit & Spin: 0.723 AU; solar day ~26.4 hours (about 1.1 Earth days)
*Year: sidereal ~246.25 Earth days; tropical ~246.24 Earth days
*Tilt: 27° (stronger seasons at the poles)
*Air & Climate: ~1.03 atm at sea level; global average temperature ~15 °C
**Polar note: A small glacier persists at the north pole; no large permanent ice caps elsewhere.
*Atmosphere (approx.):
**Nitrogen 78.078%
**Oxygen 20.97%
**Argon 0.40%
**Neon 0.43%
**Krypton 0.10%
**Carbon dioxide 0.02%
**Water vapor (global average): ~0.002%
*Visual references:
**Sky color under a K-type star: http://panoptesv.com/SciFi/ColorsOfAlienWorlds/Skies/skycolor_K0_1.png
**Possible plant colors: http://panoptesv.com/SciFi/ColorsOfAlienWorlds/Plants/leafcolor_K0_1.png

Yosogeth (Planet V)
A rocky world that always shows the same face to Njotai (tidally locked) with three small moons.
*Mass: 0.80 × Earth
*Orbit: 0.913 AU
*Air: ~0.8 atm; approx. mix—Nitrogen 78%, Oxygen 20%, Argon 0.9%, Carbon dioxide 0.09%
*Climate: Globally below freezing; even the point directly under the star hovers at or below 0 °C.
*Lore note: In the Golden Era, humans, the Lords of the Graey, and Distortions of all sorts were said to live here in the warmth of Ignis. When the war against the Eldest and its khaotic host scarred the Mundane, Yosogeth's spin was halted in a single day and lost ~20% of its air. Planet-wide storms scoured away life and cities. After the Mundane was cut off from the Graey, the world fell into a slow, final freeze.
*Realism Note: This system is for a science fantasy setting. When other worldly forces do not tamper with the universe, it will follow the laws of physics, but the lore of the setting is the reason the world is tidally locked

Jalon (Planet VI)
A dry, rocky world sharing an orbit with Kwardan; one small moon.
*Mass: 1.06 × Earth
*Orbit: 1.928 AU
*Air & Water: Very thin air; very little surface water (since the size of this planet was increased, I am considering if the world will still have a magnetic field and more atmosphere. Currently, it has a Mars-like atmosphere since it used to be 0.3 Me. The sizes were increased to justify the stability of the rather large Trojan co-orbital

Kwardan (Co-orbital with VI)
A Trojan-like rocky companion to Jalon; the only rocky planet here with a small ring; seven small moons.
*Mass: 0.04 × Earth
*Orbit: 1.928 AU (shares Jalon’s path)

Dorhankt (Planet VII)
A massive gas giant with striking rings.
*Mass: ~995 × Earth
*Orbit: 4.691 AU
*Moons: 9 shepherd moons in the rings, 6 major moons, 24 minor moons

Renao (Planet VIII)
An ice giant with a thin ring system.
*Mass: ~30 × Earth
*Orbit: 11.416 AU
*Moons: 4 shepherd moons in the rings, 5 major moons, 26 minor moons

Kentainj (Planet IX)
Ice giant.
*Mass: ~15 × Earth
*Orbit: 17.808 AU
*Moons: 8 major, 37 minor (moons still need to be added)

Ngositse (Planet X)
Ice giant.
*Mass: ~7 × Earth
*Orbit: 27.781 AU
*Moons: 7 major, 19 minor (moons still need to be added)

Dzontai (Planet XI)
A distant gas giant.
*Mass: ~305 × Earth
*Orbit: 421 AU
*Moons: none documented to date