
Oroga is the sole habitable planet of Kaufman's Other Star (Freusen Durchmusterung Catalog
#4322210351.093), a red Kl star with a luminosity of .252, mass of .725, and radius of .78 relative to
Sol…
Oroga's mean orbital radius is 7.176el2 centimeters—approximately .48 astronomical units. While the
diameter of the primary is roughly three-quarters that of Sol, its apparent size is much greater from the
surface of Oroga than Sol's is from Earth: Kaufman's Other Star occupies almost nine-tenths of a degree
of the sky, appearing to be roughly three times the size that Sol does from the surface of Earth.
The planet's orbit is almost perfectly circular; the eccentricity is only 0.00059… Combined with its low
inclination of 5 degrees, this makes Oroga virtually seasonless.
The atmosphere is breathable without either prosthetic aids or surgical modification… it is slightly richer
in oxygen than Earth's (26%), poorer in nitrogen (72%), and richer in carbon dioxide (.035%); it contains
large but not unhealthful quantities of argon, xenon, neon, and sulfur oxides…
The planet is 73% seas… Of the three major land masses, only a small portion of the most northern has
been settled by humans. The remainder are populated by t'Tant, the native quasi-sapient (see Appendix
for qualification)… Since the t'Tant have no established civilization, population estimates of the native
lifeform are based on orbital photo sampling… Estimates range from less than one billion to more than
1.5 billion.
The majority of the human population lives either in or within one thousand kilometers of Oroga's single
city, Elweré, although there are agricultural townships scattered throughout the inhabited continent. While
the last official census gives the population as 259,276, it counted only citizens, those who actually reside
in Elweré; residents of the areas immediately surrounding Elweré—Middle City and Lower City in the
local parlance—are not legally citizens of Oroga… nor are the workers of the valda and food
plantations…
The actual human population of Oroga is believed to be approximately four million. There is a transitory
schrift population, almost exclusively members of the metal-and-jewel-worker's schtann, who provide
handcrafted jewelry for the Elwereans. There are believed to be no other permanent sapient residents…
Elweré is a robust and successful trader in the Thousand Worlds marketplace, importing large quantities
of electronics gear, medicines, plastics, luxury foodstuffs… artwork, and building materials—the latter
due to political considerations as opposed to lack of resources, in view of the great quantity of untapped
ore deposits… Simply, the Elwereans prefer to have as small a local manufacturing base as is possible,
with most building done by work-contracted nonresidents. They can afford to indulge this preference…
While there is some export of local silver… the Orogan economy is supported by the export of valda oil,
the product of the beans of the valda plant (Xenocamellia neuvo valda). Treated valda oil is a superb
local and topical anesthetic for humans, preventing free (pain) nerve endings from activating; valda oil has
no known deleterious side effect.
Attempts to grow the valda plant offworld have been invariably unsuccessful, because of the plant's
para-symbiotic dependence on a large variety of local micro-and macroorganisms… Attempts to
manufacture valda oil via recombinant technologies have proved financially uncompetitive with the natural
product…
Due to the characteristic desire of the Elwereans for privacy in virtually all matters, Oroga's trade surplus
is not generally known, but is believed to be in excess of one billion Thousand Worlds Credit Units per