Craterra

Southern Far Side

A Pre-Nectarian Walled Plain on the Lunar Far Side

Spanning 236.67 kilometers, Leibnitz pairs ancient mare basalts with localized magnetic swirls.

Feature Profile & Selenographic Data

Feature type
crater
Coordinates
38.24° S · 179.35° E
Diameter
236.67 km
IAU approval
1970/01/01 00:00:00
LAC quadrangle
LAC-120 · Oppenheimer
Geological Period
Pre-Nectarian

Geological Chronicle

Located in the southern hemisphere on the Moon's far side, Leibnitz is an expansive walled plain measuring 236.67 kilometers across. Formed during the Pre-Nectarian period, the impact structure matches the scale of Clavius on the lunar near side. Its perimeter joins the northeast rim of Von Kármán, with Davisson attached to the eastern flank and Finsen intruding directly into the southeastern rim.

The outer crest of Leibnitz is roughly circular, marked by an outward bulge along the southern face and worn by impact erosion. Basaltic lava resurfaced much of the interior floor, leaving a level expanse with the low albedo of dark lunar maria. Near the northwest inner wall, the flooded crater Leibnitz X survives only as a circular rim projecting above the basalt, while ejecta from Finsen covers the southeastern floor.

Leibnitz also contains a high-albedo lunar swirl linked to a localized magnetic anomaly. These swirls belong to a broader complex of magnetic features spanning Mare Ingenii and the nearby Van de Graaff crater pair. Before formal naming by the International Astronomical Union in 1970, the formation was designated Crater 374.

Chronology & Exploration

  1. 1970 Formal IAU Naming

    The International Astronomical Union officially names the formation Leibnitz, replacing its prior designation as Crater 374.

Scientific Sources & References

Name Origin

Gottfried Wilhelm; German mathematician, philosopher (1646-1716).

Interactive Lunar Surface

Explore Leibnitz in 3D

Inspect lunar elevation data and the official selenographic position.