Craterra

Oceanus Procellarum Margin

A Concentric Impact on the Western Rim of Oceanus Procellarum

Sitting between the Grimaldi basin and the western maria, Damoiseau displays a fractured interior nested inside an older, degraded ring.

Feature Profile & Selenographic Data

Feature type
crater
Coordinates
4.85° S · 61.25° W
Diameter
36.66 km
IAU approval
1935/01/01 00:00:00
LAC quadrangle
LAC-74 · Grimaldi

Geological Chronicle

Damoiseau occupies terrain west of Oceanus Procellarum on the Moon's western near side, situated due east of the dark-floored Grimaldi basin and due north of Sirsalis. Described as a complex multiple crater, the feature spans 36.66 kilometers across. Its low outer rim is not quite circular, with an outward protrusion to the northeast and smaller bulges to the north and southeast.

The interior floor of Damoiseau is irregular and complex, cut by a series of fractures similar to those in Vitello and bearing a low ridge near its midpoint. The crater is concentric with Damoiseau M, an older formation roughly twice its diameter whose northeastern rim is missing where it intersects the lunar mare.

The crater honors French astronomer Baron Marie-Charles-Theodor de Damoiseau, whose name was introduced into lunar nomenclature by Johann Heinrich von Mädler by 1837 before formal IAU adoption in 1935. In its vicinity, anorthosite identified in satellite craters Damoiseau C and D most likely originated as ejecta from the Grimaldi basin.

Chronology & Exploration

  1. 1837 Lunar Nomenclature Introduction

    Johann Heinrich von Mädler introduces Damoiseau's name into lunar nomenclature.

  2. 1935 IAU Adoption

    The International Astronomical Union formally adopts the designation Damoiseau.

  3. 2006 Satellite Craters Named

    Satellite craters of Damoiseau are formally named.

Scientific Sources & References

Name Origin

Baron Marie-Charles-Theodor de; French astronomer (1768-1846).

Interactive Lunar Surface

Explore Damoiseau in 3D

Inspect lunar elevation data and the official selenographic position.