Craterra

Lunar Far Side

Terraced Slopes and Pure Plagioclase on the Lunar Far Side

Spanning 113.71 kilometers on the Moon's far side, Kovalevskaya features terraced walls, divided central peaks, and signatures of pure crystalline plagioclase.

Feature Profile & Selenographic Data

Feature type
crater
Coordinates
30.86° N · 129.44° W
Diameter
113.71 km
IAU approval
1970/01/01 00:00:00
LAC quadrangle
LAC-53 · Fersman

Geological Chronicle

Located on the far side of the Moon, Kovalevskaya is an impact crater measuring 113.71 kilometers in diameter. Formed during the Late Imbrian epoch of the lunar geologic timescale, the crater lies southwest of the larger walled plain Landau and north of Poynting and Fersman. Along its southwestern rim, the structure overlies nearly half of the large crater Kovalevskaya Q.

The outer rim of Kovalevskaya remains well-formed and not significantly eroded, while its inner walls have developed terraces and slumped shelves in places. At the midpoint of the interior floor, a pair of central peaks is split by a north–south valley. Spectral observations have identified the signature of pure crystalline plagioclase on the central peaks, the southern and western walls, and ejecta lying to the west of the crater.

Beyond the central peaks, the remainder of the floor is relatively level and free from significant impacts, flanked by hills to the east and low hills near the northwest inner wall. The crater is named after the Russian mathematician Sofia Kovalevskaya, who also shares her name with the asteroid 1859 Kovalevskaya.

Chronology & Exploration

  1. Late Imbrian Crater Formation

    Kovalevskaya forms on the lunar far side during the Late Imbrian epoch, overlying part of Kovalevskaya Q.

Scientific Sources & References

  • IAU Gazetteer of Planetary Nomenclature — Official IAU planetary nomenclature record for Kovalevskaya, establishing coordinates and namesake information.
  • Wikipedia — English Wikipedia article on Kovalevskaya crater, describing its geology, morphology, and mineral signatures.

Name Origin

Sofya Vasilyevna; Russian mathematician (1850-1891).

Interactive Lunar Surface

Explore Kovalevskaya in 3D

Inspect lunar elevation data and the official selenographic position.