Craterra

Lunar Far Side

An Ancient, Heavily Eroded Far Side Crater

A 160-kilometer degraded crater formation southeast of the Dirichlet-Jackson Basin.

Feature Profile & Selenographic Data

Feature type
crater
Coordinates
5.39° N · 149.69° W
Diameter
159.94 km
IAU approval
1970/01/01 00:00:00
LAC quadrangle
LAC-70 · Kibalchich

Geological Chronicle

Located on the lunar far side southeast of the Dirichlet-Jackson Basin, Tsander spans 159.94 kilometers in diameter. Extended impact erosion has degraded its outer wall into an uneven, roughly circular range. A prominent outward bulge deforms the rim along its south-southwest edge, while a smaller crater interrupts the wall to the west-northwest.

The interior floor of Tsander is covered with low ridges and rough terrain, which likely formed from large deposits of impact ejecta. A cluster of small craters sits near the midpoint of the basin floor, and the eroded remnants of two older impact structures occupy the northern and western sections.

Tsander borders several notable far side features, with the younger crater Kibal'chich adjoining its southeastern outer rim, Dirichlet to the northwest, and Artem'ev to the northeast. Prior to the International Astronomical Union officially adopting the name in 1970 in honor of rocket pioneer Friedrich Zander, the feature was designated Crater 237.

Chronology & Exploration

  1. 1970 IAU Adoption

    The International Astronomical Union officially named the crater for Friedrich Zander, replacing its provisional designation Crater 237.

Scientific Sources & References

Name Origin

Friedrich Arturovich; Soviet rocketry scientist (1887-1933).

Interactive Lunar Surface

Explore Tsander (Zander) in 3D

Inspect lunar elevation data and the official selenographic position.