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Mercury · Crater · 338th largest named feature

Simonides

Greek lyric poet (556-468 B.C.).

What Simonides is

Simonides is a crater — a circular depression, almost always an impact scar — on Mercury, 87 km across, centred at 29.1° S, 44.9° W in the Discovery quadrangle. It is the 338th largest named feature on Mercury and the 238th largest of its class there.

Where the name comes from

Greek lyric poet (556-468 B.C.). The International Astronomical Union approved the name in 1985, under the theme it applies to every crater on Mercury. Of the 449 features of this class catalogued on Mercury, the naming categories run France (36), United States (35), Japan (33), Italy (31).

Feature class
a circular depression, almost always an impact scar
Diameter
87 km
about the width of Yellowstone
Coordinates
29.1° S, 44.9° W
Planetocentric, on Mercury
Name approved
1985
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Discovery
Map sheet on Mercury
Naming category
Greek
Europe

What it would take to settle Simonides

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 29.1° S, 44.9° W.

Settlement difficulty here
46/ 100
Typical for this world
Mercury overall
46
Exactly typical
Ranked
307th
of 606 named places on Mercury

What this spot has going for it is sunlight 87% of the sunlight the sunniest latitude on Mercury gets. What works against it is water outside the ice-bearing latitudes.

Computed from Simonides'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 crater features on Mercury

All 449 craters on Mercury — mapped together, with the naming theme and the size distribution.