Ra'na

The planet Ra/na (anglicized to Ra’na for human pronunciation convenience) is a vibrant world slightly smaller than Earth within the Tau Ceti system. It hosts a diverse and thriving biosphere, which includes a single sophont species who call themselves skae.

Geography

Ra'na is the sixth planet out from its sun, Ra/ku (known to humans as Tau Ceti.) It has a single natural satellite: a selenic spherical planetoid called Eo/ma.  
 

Landmasses

Ra'na has two independent continents, Apheliotes and Eurus; the other continents form the supercontinent Aeolus (composed of Boreas to the northeast, Caicias on the east/southeast, Zephyrus in the center, and Skeiron in the west). Both Eurus and Apheliotes detached from the Aeolan supercontinent millions of years ago and are moving east-southeast. Apheliotes is also rotating clockwise in its drift, and appears to be on a collision course with Skeiron. There is one subcontinent, Notus which is in the process of colliding with Zephyrus of the Aeolian supercontinent. This geological event, highly similar to the merging of India with Eurasia on Earth, is pushing up a jagged mountain range and is the main reason for the Setekh Desert's appearance. In addition to these, there is also a single sunken continent to the far north above Apheliotes: Aparctias. This continent is techically united with Boreas, as they share the same plate, but the Aparctian end is being severely eroded and subducted, thus dragging almost all of it below sea level.

There are six major archipelagos on the planet, most of which are volcanic/tectonic in origin. The largest of these is by land area is the Boreal Archipelago, which was formed by the tectonic fracturing and glacial erosion of the Boreal-Aparctian continent. The Boreal Archipelago hosts the two largest islands on the planet as well. The second-largest island chain is the Hesperidesian Archipelago, often simply called the Hesperides. The island group was named after the nymphs of the evening who inhabited the land at the western edge of the world in Greco-Roman mythology. These islands were/are formed by tectonic activity, with the convergence of the Aparctian and Skeironese plates compressing and forcing up the seabed.

Geological Features

The crust of Ra'na is composed of twenty tectonic plates, eight of which are relatively recently formed. The planet also, notably, hosts an immense, extinct supervolcano (Hephaestus caldera) which occupies roughly 2% of Ra'na's entire surface area (not even counting its later relative Vulcan on the eastern caldera lip). Ra'na's millennia of tectonic activity have raised five major mountain ranges: the Ourean, Rhea, Apu, Tamrakar-Jesson, and Hillary-Norgay ranges.

Watershed

Ra'na is home to sixteen major rivers: Typheus; Echidna; Ophiuchus; Hydra; Hydrus; Cetus; Scylla; Scorpio; Major, East, and Minor Yaldabaoth; East and West Orthrus; East and West Abraxos; Aquarius; Eridanus; and Leo. These feed into a global ocean, Proteus, which is split into several seas: the Thaumian, Eurybian, Nereus, Aegir, and Galene Seas.

Biomes

There are roughly sixteen general types of terrestrial biomes on Ra’na, some of which are lumped together in the biome map due to their basic similarities. Biomic regions include the vast Setekh Desert, the fractured Vulcan Plateau, the boggy Vishnu Swamp Forests, the thriving Ophion and Quetzalcoatl Rainforests, the mysterious New Nazca Steppe, the isolated Aparctias Island, the ancient Nepthys Forests, the frigid Jotuun Tundra, and more.

Flora & Fauna

Ra'na is home to the Ranagenid group of organisms, a highly diverse and successful type of life that includes skae.
Ra'na

Maps

  • Map of Ra'na

    Ra'na is a terra-class world in the Tau Ceti star system, and the homeworld of the skae.

Alternative Name(s)
Ra/na
Type
Planet
Location under
Tau Ceti
Native name Ra/na Location 11.9 ly from Sol System Tau Ceti (Ra/ku)

Orbital Characteristics

Semi-major axis 0.972 AU Semi-minor axis 0.74 AU Orbital period 225.6 days Rotation period 26 hours Notable satellites Eo/ma (natural Rana Global Aerospace Coalition Orbiting Laboratory; UNSS Perseus

Planetary Characteristics

Class medium temperate terra (TR) Radius 6169.24 km (0.97 x REarth) Surface area 4.78e+8 km2 Volume 9.84e+11 km3 Mass 5.419e+24 kg (0.91 x MEarth) Gravity 9.5 m/s2 Atmospheric pressure 1.4 atm Atmosphere composition
  • 65% nitrogen
  • 34.5% oxygen
  • 0.5% other gases
Average temperature 25°C

Biosphere Information

Life Organic multicellular (marine, terrestrial) Native sophonts skae Tech level 10e (civilization in ecological harmony) Population 3 billion

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