Kokytos Flumina
What Kokytos Flumina is
Kokytos Flumina is a flumen — a channel that carries, or once carried, a liquid — on Titan, 305 km across, centred at 72.2° N, 105.0° E. It is the 51st largest named feature on Titan and the 1st largest of its class there.
Where the name comes from
River of lamentations in the Greek underworld, Hades. The International Astronomical Union approved the name in 2020, under the theme it applies to every flumen on Titan. Of the 11 features of this class catalogued on Titan, the naming categories run Greek (4), Norse (2), Hebrew (1), Jewish (1).
What it would take to settle Kokytos Flumina
Titan scores 32.6 as a world. That number is the same for every square metre of it — but sunlight, water, radiation and the ground under your feet are not. This is the same question asked at 72.2° N, 105.0° E.
What this spot has going for it is water — inside the polar zone where Titan keeps its ice. What works against it is temperature — about -180 °C mean at this latitude.
Computed from Kokytos Flumina's catalogued latitude, longitude and feature class — 74% of the model's weight had a basis here, and 2 axes were dropped as not applicable to Titan (radiation geometry, earth link). Gravity, pressure, delta-v and distance from the Sun are the same everywhere on Titan and are already counted in the world's own index, not again here.
What this cannot see: elevation. Slope, local shadowing and the polar “peaks of eternal light” — ridge tops near the poles of a barely tilted world that catch sun almost continuously while a crater floor kilometres away never does — need a terrain model this does not have. Where a real mission targets a pole, that is usually why.
What is next to it
The largest flumen features on Titan
All 11 flumina on Titan — mapped together, with the naming theme and the size distribution.