Oga

Oga is an orange dwarf star with 4 planets. Alongside Taulhi, it makes the Yrekos system. It is the home star of the yrektals.

Properties
Oga is a class K4.1V orange dwarf star. It makes up a binary system with Taulhi known as the Yrekos system, at an average distance of 11.3 AU. Any orbits around Oga further than 1.4 AU in radius will be unstable as a result of Taulhi's influence. It is roughly 2.73 billion years old, and will die in a sequence of helium flashes in about 16 billion years. It has a mass of 0.802 solar masses, a radius of 0.838 solar radii, and a luminosity of 0.414 solar luminosities. It has a surface temperature of 5060 degrees Kelvin. Its habitable zone reaches from 0.613 AU to 0.814 AU.

Planets
Oga has 4 planets.

The first planet is Kou'zi, a hot gas giant which orbits at around 0.42 AU.

The second planet is Gonoul, a hot desert planet with oceans near the poles, and the homeworld of the yrektals. it orbits at around 0.64 AU.

The third planet is Kaulera, a cold and dry sub-Earth barely inside the habitable zone. It orbits at 0.81 AU.

The final planet is Hyntrem, a metal-rich rocky planet orbiting at about 1.31 AU.