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The Moon · Crater · 287th largest named feature

Lamarck

Jean Baptiste Pierre Antoine de Monet; French natural historian (1744-1829).

What Lamarck is

Lamarck is a crater — a circular depression, almost always an impact scar — on The Moon, 115 km across, centred at 23.1° S, 70.1° W in the Eichstadt quadrangle. It is the 287th largest named feature on The Moon and the 142nd largest of its class there.

Where the name comes from

Jean Baptiste Pierre Antoine de Monet; French natural historian (1744-1829). The International Astronomical Union approved the name in 1964, under the theme it applies to every crater on The Moon. Of the 1615 features of this class catalogued on The Moon, the naming categories run Germany (234), American (229), France (163), Great Britain (160).

Feature class
a circular depression, almost always an impact scar
Diameter
115 km
about the width of Yellowstone
Coordinates
23.1° S, 70.1° W
Planetocentric, on The Moon
Name approved
1964
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Eichstadt
Map sheet on The Moon
Naming category
France
Europe

What it would take to settle Lamarck

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 23.1° S, 70.1° W.

Settlement difficulty here
27.9/ 100
Typical for this world
The Moon overall
29.1
1.2 easier than the median site
Ranked
663rd
of 2,023 named places on The Moon

What this spot has going for it is earth link near side — Earth stands 18° above the horizon and never moves. What works against it is water outside the ice-bearing latitudes.

Computed from Lamarck'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.

Lamarck's satellite craters

The IAU names smaller craters around a major one by letter. Lamarck has 6, and each shares the parent's namesake rather than carrying one of its own.

Lamarck A 53.4 kmLamarck B 7.6 kmLamarck D 131 kmLamarck E 8.7 kmLamarck F 6.2 kmLamarck G 14.7 km

What is next to it

The largest crater features on The Moon

All 1,615 craters on The Moon — mapped together, with the naming theme and the size distribution.