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Ganymede · Crater · 72nd largest named feature

Punt

Land east of Egypt where Bes originated. Changed from Punt Facula.

What Punt is

Punt is a crater — a circular depression, almost always an impact scar — on Ganymede, 135 km across, centred at 24.9° S, 120.1° E. It is the 72nd largest named feature on Ganymede and the 14th largest of its class there.

Where the name comes from

Land east of Egypt where Bes originated. Changed from Punt Facula. The International Astronomical Union approved the name in 1997, under the theme it applies to every crater on Ganymede. Of the 129 features of this class catalogued on Ganymede, the naming categories run Egypt (42), Assyro-Babylonian (30), Phoenician (18), Sumerian (16).

Feature class
a circular depression, almost always an impact scar
Diameter
135 km
about the width of Yellowstone
Coordinates
24.9° S, 120.1° E
Planetocentric, on Ganymede
Name approved
1997
By the IAU Working Group for Planetary System Nomenclature
Naming category
Egypt
Africa

What it would take to settle Punt

Ganymede scores 55 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 24.9° S, 120.1° E.

Settlement difficulty here
54.3/ 100
Typical for this world
Ganymede overall
55
0.7 easier than the median site
Ranked
69th
of 196 named places on Ganymede

What this spot has going for it is radiation geometry under closed field lines, the shielded part of the only magnetosphere on any moon. What works against it is temperature about -159 °C mean at this latitude.

Computed from Punt's catalogued latitude, longitude and feature class — 84% of the model's weight had a basis here, and 2 axes were dropped as not applicable to Ganymede (earth link, known ground). Gravity, pressure, delta-v and distance from the Sun are the same everywhere on Ganymede 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 crater features on Ganymede

All 129 craters on Ganymede — mapped together, with the naming theme and the size distribution.