Mare Ingenii

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Mare Ingenii
Mare Ingenii 2075 med.jpg
Oblique Lunar Orbiter 2 image
(south at top)
Coordinates 33°42′S 163°30′E / 33.7°S 163.5°E / -33.7; 163.5Coordinates: 33°42′S 163°30′E / 33.7°S 163.5°E / -33.7; 163.5
Diameter 318 km[1]
Eponym Sea of Ingenuity

Mare Ingenii ("sea of cleverness") is one of the few lunar mare features on the far side of the Moon. The mare sits in the Ingenii basin. This basin material is of the Pre-Nectarian epoch. The mare material located in Ingenii and the surrounding craters is of the Upper Imbrian epoch. The dark circular feature which dominates this mare is the crater Thomson (112 km diameter), with the overflow from Ingenii/Thomson directly to the east. Mare Ingenii is incompletely and thinly covered over much of its expanse with mare lava sheets. The best flooding occurs in the crater Thomson in the ENE part of the Mare Ingenii basin. The light grey crater to the south of Ingenii is Obruchev.

The mare has swirling patterns of bright material, similar to Reiner Gamma and to patterns within Mare Marginis, which are not associated with topographic or volcanic features. The swirls are associated with magnetic fields.[2]

Prior to formal naming in 1961 by the IAU,[3] the crater was known as Basin XIV.[4]

Mare Ingenii is located at the antipode of the Mare Imbrium impact basin.

The mare contains the second instance of a lunar pit on the moon and one of several outside the Earth to date.[5]

See also[edit]

Lunar Reconnaissance Orbiter Camera (LROC) articles[edit]


  1. ^ "Moon Mare/Maria". Gazetteer of Planetary Nomenclature. USGS Astrogeology. Retrieved 2010-08-20. 
  2. ^ Motomaro Shirao, Charles A. Wood, 2011, The Kaguya Lunar Atlas: The Moon in High Resolution, Plate 91: Mare Ingenii. Springer Publications.
  3. ^ Mare Ingenii, Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN)
  4. ^ Lunar Farside Chart (LFC-1A)
  5. ^ LRO Views Huge Lava Tube Skylight in Mare Ingenii; June 17, 2010; By Nancy Atkinson