Mare Nubium

Mare Nubium, whose Latin name is commonly translated as "Sea of Clouds," is a broad basaltic plain on the near side of the Moon. It occupies much of the Nubium basin and lies southeast of Oceanus Procellarum. Although the word "mare" means sea, lunar maria are not bodies of water; they are dark, relatively smooth expanses formed chiefly by ancient volcanic lava flows that filled large impact basins and depressions. The basin associated with Mare Nubium is generally regarded as having formed during the Pre-Nectarian period of lunar geological history. The mare deposits themselves are assigned mainly to the Imbrian and Eratosthenian periods, indicating that the volcanic infill occurred after the basin-forming impact and continued across a long span of lunar time. The surface is therefore a geological record of both major impact activity and later mare volcanism. Several notable lunar features are located within or around Mare Nubium. Bullialdus crater is a prominent crater on the mare's western side and is classified as Eratosthenian in age. Pitatus lies along the southern margin, while Guericke borders the mare to the north. Other named features associated with the region include the craters Opelt, Gould, Kies, Nicollet, Wolf, and Birt. Rupes Recta, widely known as the Straight Wall, is another prominent feature within the mare. These formations make the region a significant target for lunar observation and comparative study. The name has a long history in lunar cartography. William Gilbert included the area in the large feature he called Continens Meridionalis on a map produced around 1600. Michael van Langren later labeled it Mare Borbonicum on his 1645 lunar map, using a name associated with the House of Bourbon. The modern name was introduced through Giovanni Riccioli's influential 1651 lunar nomenclature system, which provided names for many maria and other lunar features. Riccioli's system eventually became the basis for standardized lunar naming. Mare Nubium has also been associated with modern lunar observation. The first images released by NASA's Lunar Reconnaissance Orbiter in 2009 showed lunar highlands approximately 200 kilometers south of the mare. In September 2013, Spanish astronomers observed and recorded a transient impact flash caused by a large object striking the lunar surface in Mare Nubium. The event illustrated how amateur and professional observers can contribute to the detection of impacts on the Moon. Mare Nubium is not a commercial brand, company, product line, or consumer-facing organization. It is a standardized astronomical geographic name. Consequently, it has no founder, owner, headquarters, operating markets, corporate parent, executives, financial performance, or commercial offerings. Its relevance lies in planetary science, lunar cartography, telescope observation, and the history of naming features on the Moon.

Mare Nubium is a lunar mare situated in the Nubium basin on the Moon's near side, southeast of Oceanus Procellarum. The basin is considered to belong to the Pre-Nectarian system, one of the earliest broad divisions of lunar geological history. Later volcanic activity filled portions of the basin with dark basaltic material. The mare deposits are generally assigned to the Imbrian and Eratosthenian periods, reflecting formation and modification over a substantial interval after the original basin-forming impact. The region contains and borders several important lunar landmarks. Bullialdus crater occupies the western side of the mare and is identified as an Eratosthenian feature. Pitatus lies near the southern margin, and Guericke marks the northern boundary. Within the broader mare area are Opelt, Gould, Kies, Nicollet, Wolf, and Birt craters, as well as Rupes Recta, the linear escarpment commonly called the Straight Wall. The combination of mare basalt, impact craters, and tectonic or structural features makes Mare Nubium useful for studying the Moon's volcanic and impact history. The feature's naming history reflects the development of early lunar maps. Around 1600, William Gilbert treated the area as part of a larger region called Continens Meridionalis. In 1645, Michael van Langren used the designation Mare Borbonicum, referring to the House of Bourbon. Giovanni Riccioli assigned the name Mare Nubium in his 1651 nomenclature system. Riccioli's terminology, including the use of poetic Latin names for the dark lunar plains, later became the foundation for standardized naming of lunar maria. Modern observation has added scientific and public interest to the region. In 2009, the first images released from NASA's Lunar Reconnaissance Orbiter depicted lunar highlands roughly 200 kilometers south of Mare Nubium. In September 2013, Spanish astronomers detected and documented a lunar impact event in the mare. Such observations help monitor current impact activity and demonstrate the value of coordinated lunar observation from Earth. Mare Nubium is a geographic and astronomical feature rather than a commercial brand. It has no corporate history, commercial products, management, ownership structure, or financial record. The appropriate encyclopedia treatment is therefore geological, cartographic, and observational rather than commercial.

• 2013

  Impact event observed in the mare

  [1]Mare Nubiumen.wikipedia.org

  Spanish astronomers observed and recorded a flash produced by a large object impacting the lunar surface in Mare Nubium.

• 2009

  Lunar Reconnaissance Orbiter imagery released

  [1]Mare Nubiumen.wikipedia.org

  The first publicly released images from NASA's Lunar Reconnaissance Orbiter showed lunar highlands approximately 200 kilometers south of Mare Nubium.

• 1651

  Modern name introduced in Riccioli's lunar nomenclature

  [1]Mare Nubiumen.wikipedia.org

  Giovanni Riccioli used the name Mare Nubium in his 1651 lunar naming system, which later became the basis for standardized lunar nomenclature.

• 1645

  Designated Mare Borbonicum

  [1]Mare Nubiumen.wikipedia.org

  Michael van Langren labeled the region Mare Borbonicum on his 1645 lunar map, using a name associated with the House of Bourbon.

• 1600

  Mapped within Continens Meridionalis

  [1]Mare Nubiumen.wikipedia.org

  William Gilbert included the region later identified as Mare Nubium within a larger feature called Continens Meridionalis on a lunar map dating from around 1600.

A standardized astronomical name for a lunar mare and geological region on the Moon's near side.

1. 1Mare Nubiumen.wikipedia.org