The first 1/3 or so of Call to Arms takes place on the planey Voystra, homeworld to Kefan Bzatory, one of the main protagonists aside from those already mentioned. Here is some of the data I put together when planning-out the planet.
System Designation: Sixth planet orbiting [star 1], a large B6 (blue-white) main sequence star approximately 2 ¾ times the size of Sol.
Location: Outer Rim planet; reasonably accessible with a small number of well-defined hyperspace lanes (average for the region), although travelling off these paths may be dangerous due to the presence of the Kappicz Nebula which disrupts Epulone generators pulling some ships into regular space prematurely and causing others to be lost permanently. The neighbouring systems include Wadham, Herleoner Naguba, Elizavetol, and the Burdigala cluster. Wadham and Herleoner Naguba have historically been enemies, as Herleon stronghold, and continue to be so under the aegis of Zelosians, the new masters of that region. Burdigalle, originally colonized by settlers from Durocortōrum has traditionally been a great ally, being the local bastion of Imperial power but was devastated by the civil wars following the “Estates General”.
Planet Size and Land Area (relative): Slightly larger than Earth, with one major continental mass in each of the north and south hemispheres. The northern continent is about the size of North America and the south the size of Europe. A minor continental mass in the north the size of Australia is the other major land mass.
Dominant Climate: Cool temperate, subarctic, and arctic – Voystra is a cool planet that within the last several thousand years was still locked in the grip of an ice age. There are no major landmasses in equatorial climes, therefore most of the settlements share a cool climate with a short hot summer and long cold winter with lots of precipitation.
Dominant Terrain: About a third of Voystra’s surface is still covered in icecaps which are slowly receding; of the remaining two thirds the majority is covered in forest, tundra, or steppe. Huge expanses of land were ground smooth by the retreating glaciers, although there are a number of distinct mountain ranges. Water is abundant; over 90% of the planet surface is ocean and the major populated continent is dotted with freshwater lakes and powerful rivers – the most important rivers being the Vodra and the Biebroz.
Technology: Voystra, being located in one of the furthest wings of the Outer Rim, has a general technology level much lower than that of core worlds – roughly akin to that of late 19th century Europe on earth. Beasts of burden (specifically Brudniki, ox-sized mammoth-like creatures, and Koniki, a stalky, furry horse-like creature) are the most common ways for people to move about and transport goods. Most modern amenities available elsewhere in the galaxy exist on Voystra, but are very rare. The planet has two spaceports: Rozienov on the northern continent, and a much smaller port on the southern continent.
Land Use: As with most planets in the Empire, the population is shifting from rural to urban as the economy is increasingly industrialised and mechanised, and as smaller rural hamlets are wiped out by the Disease. This has left many of the rural areas underpopulated, which is a problem since grain is one of the major exports of Voystra; the urban areas on the other hand are becoming more crowded, dirty, and run-down despite new construction initiatives.
Natural Hazards: Permafrost over the northern half of both major continents is a major impediment to development; cyclonic storms east of the major mountain chain of the planet on the northern major continent – otherwise, Voystra itself is mercifully free of natural hazards. However, approaching Voystra is dangerous due to its presence on the outskirts of the Kappicz Nebula, which spans some 15 light-years in diameter and contains a cluster of 34 other stars (the radiation from these excites the gases in the nebula to shine). It has the unique property of existing both in normal and hyperspace. In normal space, it is harmless and beautiful, but in hyperspace it is much condensed and dangerous as razorbacks under shallow water.
Population: Approx. 200,000,000 which would place it in the bottom quarter of Outer Rim planets in terms of population and less than 10% of the average core world’s population. Imperially speaking, it is an insignificant population forming only a fraction of a percent of Imperial population. As with all Imperial planets, Voystra has suffered from a decreased birth rate coupled with a vastly increased death rate since the introduction of the New Order. The largest city, Rozienov, is the site of the planet’s only star port capable of holding interstellar-class star ships.
Birth Rate: Almost double the Imperial average of core worlds at approx. 15/1,000 population
Economy: Most of the citizens of Voystra still make their living farming and fishing, although the new emphasis towards industrialisation and urbanisation has increased mining and manufacturing jobs.
Agricultural Products: Primary crops are wheat, rapeseed, and potatoes. Wheat, while providing sustenance for the inhabitants, is a major export crop.
Standing Military: Compared to other planets, the majority of fighting forces on Voystra are backward, relying on bolt-action “slug throwers” and black-powder cannons. Cavalry is still used here and in some of the most backwards areas of the planet some units equipped purely with mêlée weapons exist. Only wealthier officers carry blasters or use skimmers rather than horses. The Imperials on Voystra continue to train every citizen as part of the militia (albeit in a much reduced fashion from before the “Estates General”) and maintains a modest standing Acolyte force.