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Mars · Tholus · 750th largest named feature

Newton Tholus

Named for nearby crater, Newton.

What Newton Tholus is

Newton Tholus is a tholus — a small domical mountain or hill — on Mars, 80.4 km across, centred at 40.5° S, 165.1° W in the Phaethontis quadrangle. It is the 750th largest named feature on Mars and the 12th largest of its class there.

Where the name comes from

Named for nearby crater, Newton. The International Astronomical Union approved the name in 2020, under the theme it applies to every tholus on Mars. Of the 29 features of this class catalogued on Mars, the naming categories run Greek (16), Latin (9), China (3), Great Britain (1).

Feature class
a small domical mountain or hill
Diameter
80.4 km
about the width of Yellowstone
Coordinates
40.5° S, 165.1° W
Planetocentric, on Mars
Name approved
2020
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Phaethontis
Map sheet on Mars
Naming category
Great Britain
Europe

What it would take to settle Newton Tholus

Mars scores 26.6 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 40.5° S, 165.1° W.

Settlement difficulty here
28.2/ 100
Typical for this world
Mars overall
26.6
1.6 harder than the median site
Ranked
1955th
of 2,049 named places on Mars

What this spot has going for it is known ground 1,831 km from Spirit (2004). What works against it is water outside the ice-bearing latitudes.

Computed from Newton Tholus's catalogued latitude, longitude and feature class — 74% of the model's weight had a basis here, and 2 axes were dropped as not applicable to Mars (radiation geometry, earth link). Gravity, pressure, delta-v and distance from the Sun are the same everywhere on Mars 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 tholus features on Mars

All 29 tholi on Mars — mapped together, with the naming theme and the size distribution.