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Mars · Fossa · 169th largest named feature

Coloe Fossae

Classical albedo feature name.

What Coloe Fossae is

Coloe Fossae is a fossa — a long, narrow depression — on Mars, 576 km across, centred at 36.6° N, 56.8° E in the Ismenius Lacus quadrangle. It is the 169th largest named feature on Mars and the 27th largest of its class there.

Where the name comes from

Classical albedo feature name. The International Astronomical Union approved the name in 1982, under the theme it applies to every fossa on Mars. Of the 61 features of this class catalogued on Mars, the naming categories run Greek (32), Latin (22), Egypt (2), China (2).

Feature class
a long, narrow depression
Diameter
576 km
about 1.7 times the length of the Grand Canyon
Coordinates
36.6° N, 56.8° E
Planetocentric, on Mars
Name approved
1982
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Ismenius Lacus
Map sheet on Mars
Naming category
Greek
Europe

What it would take to settle Coloe Fossae

Mars scores 26.6 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 36.6° N, 56.8° E.

Settlement difficulty here
28.2/ 100
Typical for this world
Mars overall
26.6
1.6 harder than the median site
Ranked
1950th
of 2,049 named places on Mars

What this spot has going for it is sunlight 83% of the sunlight the sunniest latitude on Mars gets. What works against it is water outside the ice-bearing latitudes.

Computed from Coloe Fossae'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 Mars (radiation geometry, earth link). Gravity, pressure, delta-v and distance from the Sun are the same everywhere on Mars 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 fossa features on Mars

All 61 fossae on Mars — mapped together, with the naming theme and the size distribution.