Subscribe to download
Holn System

The system was made with realism as the #1 goal giving each object much thought about they came to be, giving them a realistic origin and reason for its surface, size, density, compisition, atmosphere and overall geology/climate.

The Holn Sytem consists of two stars Holn and Hazel.

Holn is based on the solar system but with two main changes,
1. No planetary migration happened this allowed for larger inner planets and a denser outer debris disk, among other things.
2. Holn is around 5 billion years old and in its subgiant phase which caused a recent and rapid warming of the system and the planets themesleves are older then the Solar System's.

Hazel is a bit more of standard K type star that is average in many respects with a yet distinct small set of planets.
------------------
Being the first planet is quite hot with a thin atmosphere and red surface caused by the build up of iron oxide dust.
------------------
A mystery of sand and sulfur, Miroka is easily the largest rocky planet in the system with a thick crust and hot interior that allows many giant shield volcanoes to take shape. Miroka is though to previously have large lakes but as Holn grew these lakes are left as steam in the atmosphere.
Selvar
Being known as the "Zebra Moon" Selvar is Miroka's sole moon but despite its small size it kept Miroka's interior hot through tidal forces helping form the interesting surface of Miroka.
------------------
Thetas is the home of almost all living things but it wasnt always perfect. Before Holn grew Thetas was too cold for large sapient life to form but after it did this planet had surge of biodiversity giving arise to the Thetans, A intelligent species that wish to escape their doomed system.
Yuro
Yuro is the moon Thetas and is somewhat unremarkable but is the start of the Thetans interstellar journey and is what made life possible on their planet.
------------------
Hyper is a small metal rich world with half the mass and atmospheric pressure of Thetas. Its surface is covered in copper oxide compounds, giving it a striking green hue that once fooled astronomers into thinking it had life and vegetation. It is not known whether which came first, the oxygen in the atmosphere or the oxygem in the copper.
------------------
Saraka is a near mirror of Thetas but the main diffrence is having an alternative hydrosphere of ammonia. This ammonia slowed tectonic activity compared to water and Saraka resembles a younger Thetas.
Darsel
Darsel is the first and smallest moon of Saraka, it's small with ice on its surface.
Bresel
Bresel is the second and larger moon of Saraka and has a more surface ice than Darsel
------------------
Sanur is the smallest gas planet in the system and is one out of two ice giants. Strangly Sanur is in a resonance with Saraka which makes it hard to tell if its a true outer planet.
Calis
Calis is most notable for its contrasting sides where the near side is covered in a more condensed blue ice and the far side is made of a finer snow.
Acred
Acred is the largest moon of Sanur and has large plains of CO2 ice mixed with regolith making the moon tan in color.
Evara
Evara is quite unique as condensed ice mixed with tholins have created a truly special purple ice. Evara also has rifts and vallyes being one of the few objects with a cracked lithosphere.