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Venus · Dorsum · 353rd largest named feature

Anpao Dorsa

Dakota name of the dawn.

What Anpao Dorsa is

Anpao Dorsa is a dorsum — a ridge — on Venus, 550 km across, centred at 62.0° N, 153.0° W in the Pandrosos Dorsa quadrangle. It is the 353rd largest named feature on Venus and the 75th largest of its class there.

Where the name comes from

Dakota name of the dawn. The International Astronomical Union approved the name in 1997, under the theme it applies to every dorsum on Venus. Of the 99 features of this class catalogued on Venus, the naming categories run Slavic (9), Siberia (8), Greek (6), Lithuania (5).

Feature class
a ridge
Diameter
550 km
about the length of the Grand Canyon
Coordinates
62.0° N, 153.0° W
Planetocentric, on Venus
Name approved
1997
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Pandrosos Dorsa
Map sheet on Venus
Naming category
Dakota
North America

What it would take to settle Anpao Dorsa

Venus scores 43 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 62.0° N, 153.0° W.

Settlement difficulty here
45.7/ 100
Harder than most of this world
Venus overall
43
2.7 harder than the median site
Ranked
1746th
of 1,985 named places on Venus

What this spot has going for it is known ground 6,390 km from Venera 9 (1975). What works against it is water same as everywhere else on this world.

Computed from Anpao Dorsa'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 Venus (radiation geometry, earth link). Gravity, pressure, delta-v and distance from the Sun are the same everywhere on Venus 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 Venus

All 99 dorsa on Venus — mapped together, with the naming theme and the size distribution.