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The Moon · Dorsum · 524th largest named feature

Dorsa Dana

James Dwight; American Earth scientist (1813-1895).

What Dorsa Dana is

Dorsa Dana is a dorsum — a ridge — on The Moon, 82.3 km across, centred at 2.3° N, 89.6° E in the Neper quadrangle. It is the 524th largest named feature on The Moon and the 29th largest of its class there.

Where the name comes from

James Dwight; American Earth scientist (1813-1895). The International Astronomical Union approved the name in 1976, 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
82.3 km
about the width of Yellowstone
Coordinates
2.3° N, 89.6° E
Planetocentric, on The Moon
Name approved
1976
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Neper
Map sheet on The Moon
Naming category
American
North America

What it would take to settle Dorsa Dana

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 2.3° N, 89.6° E.

Settlement difficulty here
29/ 100
Typical for this world
The Moon overall
29.1
0.1 easier than the median site
Ranked
983rd
of 2,023 named places on The Moon

What this spot has going for it is sunlight 100% of the sunlight the sunniest latitude on The Moon gets. What works against it is water outside the ice-bearing latitudes.

Computed from Dorsa Dana'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.