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Mars · Planum · 97th largest named feature

Sinai Planum

Classical albedo feature name.

What Sinai Planum is

Sinai Planum is a planum — a high plain or plateau — on Mars, 901 km across, centred at 13.7° S, 87.8° W in the Coprates quadrangle. It is the 97th largest named feature on Mars and the 13th largest of its class there.

Where the name comes from

Classical albedo feature name. The International Astronomical Union approved the name in 1973, under the theme it applies to every planum on Mars. Of the 35 features of this class catalogued on Mars, the naming categories run Greek (17), Latin (14), Egypt (2), Italy (1).

Feature class
a high plain or plateau
Diameter
901 km
about the length of Italy
Coordinates
13.7° S, 87.8° W
Planetocentric, on Mars
Name approved
1973
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Coprates
Map sheet on Mars
Naming category
Egypt
Africa

What it would take to settle Sinai Planum

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 13.7° S, 87.8° W.

Settlement difficulty here
25.1/ 100
Typical for this world
Mars overall
26.6
1.5 easier than the median site
Ranked
101st
of 2,049 named places on Mars

What this spot has going for it is sunlight 97% of the sunlight the sunniest latitude on Mars gets. What works against it is water outside the ice-bearing latitudes.

Computed from Sinai Planum'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 planum features on Mars

All 35 plana on Mars — mapped together, with the naming theme and the size distribution.