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Venus · Fluctus · 205th largest named feature

Ilaheva Fluctus

Tonga (Polynesia) worm goddess.

What Ilaheva Fluctus is

Ilaheva Fluctus is a fluctus — a flow of erupted material — on Venus, 900 km across, centred at 42.5° S, 84.0° E in the Aino Planitia quadrangle. It is the 205th largest named feature on Venus and the 10th largest of its class there.

Where the name comes from

Tonga (Polynesia) worm goddess. The International Astronomical Union approved the name in 2000, under the theme it applies to every fluctus on Venus. Of the 53 features of this class catalogued on Venus, the naming categories run Egypt (6), Siberia (4), Japan (3), Roman (3).

Feature class
a flow of erupted material
Diameter
900 km
about the length of Italy
Coordinates
42.5° S, 84.0° E
Planetocentric, on Venus
Name approved
2000
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Aino Planitia
Map sheet on Venus
Naming category
Tonga
Oceania

What it would take to settle Ilaheva Fluctus

Venus scores 43 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 42.5° S, 84.0° E.

Settlement difficulty here
43.4/ 100
Typical for this world
Venus overall
43
0.4 harder than the median site
Ranked
1161st
of 1,985 named places on Venus

What this spot has going for it is sunlight 74% of the sunlight the sunniest latitude on Venus gets. What works against it is water same as everywhere else on this world.

Computed from Ilaheva Fluctus'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 Venus (radiation geometry, earth link). Gravity, pressure, delta-v and distance from the Sun are the same everywhere on Venus 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 fluctus features on Venus

All 53 fluctus on Venus — mapped together, with the naming theme and the size distribution.