Capuanus is a

lunar Lunar most commonly means "of or relating to the Moon". Lunar may also refer to: Arts and entertainment * ''Lunar'' (series), a series of video games * "Lunar" (song), by David Guetta * "Lunar", a song by Priestess from the 2009 album ''Prior t ...

impact crater An impact crater is a depression (geology), depression in the surface of a solid astronomical body formed by the hypervelocity impact event, impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal c ...

that lies along the southern edge of the

Palus Epidemiarum Palus Epidemiarum (Latin ''palūs epidēmiārum'' ''Marsh of Epidemics'') is a small lunar mare in the southwestern part of the Moon's near side. This feature forms a rough band of lava-flooded terrain that runs generally west–east, with a n ...

. It was named after Italian astronomer F. Capuano di Manfredonia. The outer rim is eroded and indented by lesser crater impacts, with notches in the north, west, and southern parts of the rim. The interior floor has been resurfaced by

basalt Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...

lava Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a Natural satellite, moon onto its surface. Lava may be erupted at a volcano or through a Fissure vent, fractu ...

, which is connected to the surrounding

lunar mare The lunar maria ( ; mare ) are large, dark, basaltic plains on Earth's Moon, formed by lava flowing into ancient impact basins. They are less reflective than the "highlands" as a result of their iron-rich composition, and hence appear dark to ...

by a narrow, crater-formed gap in the northern rim. Dotting the floor of the crater are a number of

domes A dome () is an architectural element similar to the hollow upper half of a sphere. There is significant overlap with the term cupola, which may also refer to a dome or a structure on top of a dome. The precise definition of a dome has been a m ...

, which are believed to have formed through volcanic activity. The rim reaches its maximum altitude along the western face, where it merges with ridges along the edge of the mare. To the northeast the rim dips down very close to the surface, and barely forms a curving ridge in the surface. The southeastern rim is overlaid by a pair of craters. To the north of Capuanus is the western extreme of the wide

rille Rille (German for 'groove') is typically used to describe any of the long, narrow depressions in the surface of the Moon that resemble channels. The Latin term is ''rima'', plural ''rimae''. Typically, a rille can be several kilometers w ...

named Rima Hesiodus, which runs to the east-northeast. To the west-northwest is the crater

Ramsden Ramsden may refer to: ;Places: * Ramsden, Orpington, England * Ramsden, Oxfordshire, England, a village and civil parish * Ramsden, Worcestershire, England, a hamlet * Ramsden Bellhouse, a village in Essex, England * Ramsden Park, Toronto, Canada ...

, and between Capuanus and Ramsden lies a system of intersecting rilles named the Rimae Ramsden.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Capuanus.

References

* * * * * * * * * * * Impact craters on the Moon {{Craters on the Moon: C-F