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Mercury · Dorsum · 51st largest named feature

Antoniadi Dorsum

Eugene M.; Greco-French astronomer, defined classical nomenclature for albedo features of Mars (1870-1944).

What Antoniadi Dorsum is

Antoniadi Dorsum is a dorsum — a ridge — on Mercury, 359 km across, centred at 27.2° N, 29.7° W in the Victoria quadrangle. It is the 51st largest named feature on Mercury and the 2nd largest of its class there.

Where the name comes from

Eugene M.; Greco-French astronomer, defined classical nomenclature for albedo features of Mars (1870-1944). The International Astronomical Union approved the name in 1976, under the theme it applies to every dorsum on Mercury.

Feature class
a ridge
Diameter
359 km
about the length of the Grand Canyon
Coordinates
27.2° N, 29.7° W
Planetocentric, on Mercury
Name approved
1976
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Victoria
Map sheet on Mercury
Naming category
Italy
Europe

What it would take to settle Antoniadi Dorsum

Mercury scores 46 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 27.2° N, 29.7° W.

Settlement difficulty here
46.5/ 100
Typical for this world
Mercury overall
46
0.5 harder than the median site
Ranked
390th
of 606 named places on Mercury

What this spot has going for it is sunlight 89% of the sunlight the sunniest latitude on Mercury gets. What works against it is water outside the ice-bearing latitudes.

Computed from Antoniadi Dorsum's catalogued latitude, longitude and feature class — 68% of the model's weight had a basis here, and 3 axes were dropped as not applicable to Mercury (radiation geometry, earth link, known ground). Gravity, pressure, delta-v and distance from the Sun are the same everywhere on Mercury 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 dorsum features on Mercury