Naar (Tharun) and the Iyath system
Overview
Naar (scientifically Tharun ) is the home world of the Enari and the third planet in the Iyath system , a binary star system. The planet orbits the main star Iyath (Eryon) within the habitable zone. A companion star Saivor (Orsath) orbiting further out influences the system periodically and generates long-term ecological cycles on Naar.
The system is stable and relatively compact. It contains several rocky planets, an asteroid belt, and two outer gas or ice giants.
System Diagram
Iyath-System
|
+-- Iyath (Eryon), K1V-Hauptstern
| |
| +-- Tirash
| +-- Kaleth
| +-- Naar (Tharun)
| | |
| | +-- Seyra
| | +-- Orun
| |
| +-- Esyr
| +-- Zeyth-Band
| +-- Veyron
| +-- Thalos
|
+-- Saivor (Orsath), K7V-Begleitstern
|
+-- elliptische Bahn um Iyath
+-- mittlere Distanz: ca. 18 AU
+-- Periastron: ca. 7 AU
+-- Apastron: ca. 29 AU
+-- indirekter Effekt: planetarer Bloom-Zyklus auf Naar
In-depth dossiers
The Iyath System
Central star: Iyath (Eryon)
| Feature | Value |
|---|---|
| Everyday Name | Iyath |
| Scientific name | Eryon |
| Type | K1V Main Sequence Star |
| Mass | approx. 0.85 solar masses |
| Luminosity | approx. 0.65 solar luminosities |
| Surface temperature | approx. 5000 K |
| Age | about 6 billion years |
Iyath is slightly cooler and more durable than the Earth's sun. Its light is slightly orange-gold. The lower activity of such stars leads to stable radiation conditions, which favors the long-term development of complex life.
Companion star: Saivor (Orsath)
| Feature | Value |
|---|---|
| Everyday name | Saivor |
| Classic name | Orsath |
| Type | K7V Star |
| Mass | about 0.60 solar masses |
| Luminosity | about 0.15 solar luminosities |
| Medium track (large semi-axis) | approx. 18 AU |
| Periastron | approx. 7 AU |
| Apastron | approx. 29 AU |
Saivor moves on a wide elliptical orbit around Iyath. The companion star slightly influences the irradiation in the inner system, especially during its approach phase. On Naar, this effect affects via ecological amplifiers and is associated with a multi-year planetary bloom cycle .
Planets of the system
From the inside out:
- Tirash: hot inner rocky planet near Iyath, volcanically active and practically without atmosphere
- Kaleth: Earth-sized greenhouse planet with dense CO2 atmosphere, extremely hot and geologically active surface
- Naar (Tharun): Homeworld of the Enari within the habitable zone
- Esyr: cold, Mars-like planet with a thin atmosphere; today the site of an Enaric colony
- Zeyth band : Asteroid belt near the snow line; most important source of raw materials for the space industry
- Veyron: large gas giant with numerous moons, some of which have underground oceans
- Thalos: outer ice giant with ring system
The Planet To (Tharun)
Basic data
| Feature | Value |
|---|---|
| Diameter | about 13,200 km |
| Gravity | approx. 1.05 g |
| Density | approx. 5.7 g/cm3 |
| Orbit around Iyath | 0.87 AU |
| Cycle time | 352 days |
| Rotation duration | 26 hours |
| axis inclination | about 28 degrees |
| Moons | Seyra and Orun |
The two moons generate complex tidal cycles that play an important role in ecosystems, especially in coastal and wetlands.
Geology and Geography
Naar is tectonically active and has a young, dynamic surface.
Typical geological structures:
- extensive coasts and shallow seas
- large inland seas and lagoon systems
- wide wetlands and marshy lowlands
- Karst landscapes with underground water reservoirs
- medium-high, geologically young mountains
The crust contains many light metals such as aluminium and titanium. Rare heavy metals are comparatively scarce. This geological situation is often considered a factor that favoured the development of enarian biotechnology.
Climate and climates
On the whole, Naar is warmer and wetter than the earth.
| Feature | Value |
|---|---|
| Global average temperature | about 18 C |
| Atmosphere | Nitrogen-oxygen atmosphere with high humidity |
Important climatic zones in a Köppen-like classification:
- *Af *: equatorial rainy climates in equatorial belts, island chains and inland sea areas
- On: monsoon-like humid climates on large continental coasts of the tropics and subtropics
- Cfa: humid subtropics as stable agricultural and compaction areas of many Enarian states
- Cfb: oceanic climates on western sides of the continents and in island belts
- Dfa / Dfb / Dfc: continental to subpolar inland and high latitudes with stronger seasons
- ET / EF: polar zones on the caps
- B: arid steppes and very rare deserts in the rain shadow of large mountains or in the interior of large continents
Stay dominant on Naar wetlands, deltas, lagoons and other water-rich biomes. Real deserts are much rarer compared to Earth.
The atmosphere often produces dense bands of clouds, giving the planet a particularly cloudy impression from orbit.
Biosphere
The biosphere of Naar is strongly influenced by wetlands, coastal zones and symbiotic organisms.
Typical biological characteristics:
- Plants with grey-green or violet pigments
- large fungal storage organisms
- moss- and lichen-like floor carpets
- amphibious animals
- many organisms with secretions and symbiotic microorganisms
The oceans often appear greenish-turquoise, as they are rich in algae and microorganisms.
Enari Food Resources
The diet of the Enari is based on several biological resources:
- Mushroom and symbiosis cultures: high protein and nutrient content
- Algae and aquatic plants: source of starch and sugar
- Aquatic animals: comparable to fish or amphibians of the earth
- Fruiting body of large plant fungal symbioses: particularly productive in so-called bloom years
The Saivor-Bloom Cycle
The companion star Saivor indirectly influences the biosphere. During certain orbital constellations, the irradiation increases slightly and shifts local climate patterns. Many organisms respond to this with synchronized growth and reproductive phases.
About every 6-7 years, particularly productive years occur in which
- Plants form fruiting bodies en masse
- Algae blooms increase
- Strong growth in animal populations
Tropical Af and Am rooms as well as coastal damp zones of the Cfa and Cfb **belts are particularly affected.
These periods are referred to as * bloom cycles * and have historically played an important role in the development of the Enarian society.
Space travel in the Iyath system
The Enari have largely tapped into their home system.
Key Locations:
- Orbit of Naar: large space stations for trade, research and defence
- Seyra: several scientific and industrial lunar bases
- Esyr: first large extraterrestrial colony of the Enari
- Zeythbelt: automated mining stations
Summary
Das Iyath-System ist ein stabiles Doppelsternsystem mit einem lebensfreundlichen Planeten. Die Kombination aus einem langlebigen K-Stern, einem weit entfernten Begleitstern, komplexen Gezeiten durch zwei Monde und einer feuchten, biologisch aktiven Welt schuf die Voraussetzungen für die Evolution der Enari.
Die periodischen Bloom-Zyklen, die indirekt durch den Begleitstern Saivor beeinflusst werden, prägen bis heute die Ökologie und langfristigen Planungsrhythmen der enarischen Zivilisation.
Querverweise
- Astronomie und Planetologie
- Iyath-System und Himmelskörper
- Naar: Planetologie und Biosphäre
- Bloom-Zyklus und Raumfahrt
- Veyrathi - Astronomie und Raumfahrtterminologie
- Veyrathi - Namens- und Stilblatt des Iyath-Systems
- Veyrathi - Register und Gebrauch der Systemnamen
- Saithanisch - Astronomie und Astrophysik
- Ökologie der Enari
- Artprofil der Enari
- Biologie der Enari