Cirrane

The Ollune have no name for Cirrane. Not a disputed one, not several — none. A world is a thing you can stand off from and look at, and no one born inside a permanent overcast, with no ground beneath and no clear sky above, has ever been in a position to see one. Cirrane is a Federation survey catalogue entry. The people who live there were told what they live in, and have taken the news with reasonable grace.

What they do have a name for is Freyari, and it is not a name for the planet. Freyari is the band of habitable air wrapped around it — the whole of the world as anyone born inside it encounters the world. Ollune translators are firm that the two words do not denote the same object, in a way Federation cartography has never quite accommodated: Cirrane is a body some tens of thousands of kilometres deep, of which all but a sliver is irrelevant to every living thing on it, and Freyari is the sliver. In ordinary Ollune usage the word also does duty for everywhere.

Cirrane is the fourth planet of the Vantine System: a banded gas giant of unremarkable mass, no rings worth the mention, and a moon system Federation survey has catalogued and largely ignored. It is a member world of the Federation of Sentient Beings on account of the one thing about it that is not unremarkable, which is that it is inhabited.

The Temperate Shell

Cirrane has no surface. Descending through its atmosphere, pressure and temperature climb without interruption until hydrogen stops behaving like a gas, and there is no depth at which anything a Federation survey would call ground begins. What Cirrane has instead is a temperate shell — Freyari, to the people in it: a band of altitude, some tens of kilometres thick, where pressure, temperature and photochemistry happen to sit within the range life can work in.

Everything alive on Cirrane lives in that shell, and the whole of the Ollune civilisation is inside it. Above, the air thins past the point a body can generate lift from it. Below, the descent is not survivable, and the Ollune do not treat the lower atmosphere as a frontier, an underworld, or a place at all. It is simply the direction in which things stop.

The shell's food web runs on the haze — the photochemical organic aerosol Cirrane's upper atmosphere produces continuously in sunlight, drifting down through the shell as a slow permanent supply of edible complex molecules. Cirrane's ecology is filter-feeding almost from top to bottom, and its large fauna, the Ollune among them, are overwhelmingly soft, buoyant, and translucent, on a world where mass is the one thing nothing can afford.

Bands and Shear

Cirrane's atmosphere is organised into zonal bands running parallel to the equator, each moving at its own speed, with velocity differences between neighbouring bands measured in hundreds of metres per second. This is ordinary gas-giant weather and would merit no comment on an uninhabited world. On Cirrane it is the political geography.

An Ollune shoal is carried by its band and cannot meaningfully leave it. Two shoals in the same band hold formation forever without ever converging; two shoals in adjacent bands are swept past one another on a fixed and calculable cycle, for a few hours, at intervals of years. The shear layer between bands is the most hazardous environment the Ollune routinely enter, and crossing one is a serious undertaking rather than a journey.

The consequence is a world where distance predicts nothing. A shoal a thousand kilometres away in the same band is permanently unreachable; a shoal three kilometres above is a regular trading partner whose schedule everyone knows by heart. Survey Corps astrogators tend to recognise the shape of this before anyone explains it — that connectivity is one thing and proximity is another is the first principle of fold-space transit, and Cirrane is the only known place where a civilisation worked it out from the weather.

The Long Eye

Cirrane's single conspicuous surface feature, in the sense a distant observer means it, is the Long Eye: a persistent anticyclonic storm system in the southern mid-latitudes, large enough to be resolved from outside the system and stable across the whole span of Federation observation.

To the Ollune it is something else entirely. In a world with no landmarks, no coastlines and no fixed points of any kind, the Long Eye is the one thing that stays where it is. It is the origin of Ollune position-keeping, the reference every shoal's drift is reckoned against, and the anchor of a navigational tradition considerably older than contact. Ollune far-word position calls are still given, in translation, as bearings from the Eye — a convention Federation charts of Cirrane have adopted rather than corrected, on the reasonable grounds that the people already using it are not going to stop.

Ollune attitudes toward the Long Eye are not devotional and outside observers are cautioned against assuming otherwise. The storm is a hazard, and shoals whose drift carries them near its outer bands take it as seriously as any other weather. It is simply also the only permanent thing in the sky, on a world that offers nothing else to steer by.

Contact and Federation Status

Cirrane has been a Federation member world for generations, admitted under the founding principle that a claim to self-governance is valid on its own terms without the claimant first proving itself — a clause that in most cases reads as courtesy and in Cirrane's case is doing structural work, since the Ollune could not have presented themselves to anyone. There is no Ollune spaceflight and, in the absence of fire, metal or a surface, there never could have been.

The Federation's own contact record is brief to the point of embarrassment and has been the subject of assembly review more than once: a survey pass, an atmospheric probe deployment, and the discovery — several weeks in — that the coherent low-frequency signal the survey had been logging as an atmospheric resonance phenomenon was a language, and had been discussing the probe since it entered the shell.

See also: Ollune, The Federation of Sentient Beings, Lagrange Fold Points and Fold-Space Transit, The Undersong Belt, Prismere.