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The Moon · Dorsum · 119th largest named feature

Dorsa Tetyaev

Mikhail Mikhailovich; Soviet geologist (1882-1956).

What Dorsa Tetyaev is

Dorsa Tetyaev is a dorsum — a ridge — on The Moon, 188 km across, centred at 20.0° N, 64.1° E in the Cleomedes quadrangle. It is the 119th largest named feature on The Moon and the 9th largest of its class there.

Where the name comes from

Mikhail Mikhailovich; Soviet geologist (1882-1956). The International Astronomical Union approved the name in 1979, under the theme it applies to every dorsum on The Moon. Of the 39 features of this class catalogued on The Moon, the naming categories run Great Britain (8), American (6), Germany (5), Switzerland (4).

Feature class
a ridge
Diameter
188 km
about 1.8 times shorter than the length of the Grand Canyon
Coordinates
20.0° N, 64.1° E
Planetocentric, on The Moon
Name approved
1979
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Cleomedes
Map sheet on The Moon
Naming category
Soviet
Europe

What it would take to settle Dorsa Tetyaev

The Moon scores 29.1 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 20.0° N, 64.1° E.

Settlement difficulty here
27.8/ 100
Typical for this world
The Moon overall
29.1
1.3 easier than the median site
Ranked
652nd
of 2,023 named places on The Moon

What this spot has going for it is earth link near side — Earth stands 24° above the horizon and never moves. What works against it is water outside the ice-bearing latitudes.

Computed from Dorsa Tetyaev's catalogued latitude, longitude and feature class — 84% of the model's weight had a basis here, and one axis was dropped as not applicable to The Moon (radiation geometry). Gravity, pressure, delta-v and distance from the Sun are the same everywhere on The Moon 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 The Moon

All 39 dorsa on The Moon — mapped together, with the naming theme and the size distribution.