En vivo
Mercury · Crater · 495th largest named feature

Bunin

Ivan, Russian author of prose and poetry; first Russian to win the Nobel Prize in Literature, in 1933. (1861 – 1941).

What Bunin is

Bunin is a crater — a circular depression, almost always an impact scar — on Mercury, 37 km across, centred at 84.5° N, 141.8° W in the Borealis quadrangle. It is the 495th largest named feature on Mercury and the 378th largest of its class there.

Where the name comes from

Ivan, Russian author of prose and poetry; first Russian to win the Nobel Prize in Literature, in 1933. (1861 – 1941). The International Astronomical Union approved the name in 2019, 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
37 km
about a marathon
Coordinates
84.5° N, 141.8° W
Planetocentric, on Mercury
Name approved
2019
By the IAU Working Group for Planetary System Nomenclature
Quadrangle
Borealis
Map sheet on Mercury
Naming category
Russia
Europe

What it would take to settle Bunin

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 84.5° N, 141.8° W.

Settlement difficulty here
42.5/ 100
Better than most of this world
Mercury overall
46
3.5 easier than the median site
Ranked
17th
of 606 named places on Mercury

What this spot has going for it is water inside the polar zone where Mercury keeps its ice. What works against it is sunlight 10% of the sunlight the sunniest latitude on Mercury gets.

Computed from Bunin'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.