Kästner 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 circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters ...

that is located near the eastern limb of the

Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...

, to the southwest of the

Mare Smythii Mare Smythii (Latin for "Smyth's Sea") is a lunar mare located along the equator on the easternmost edge of the Moon's near side. It is named for the 19th-century British astronomer William Henry Smyth. The Smythii basin where the mare is located ...

. Just to the northwest of Kästner is the walled plain

Gilbert Gilbert may refer to: People and fictional characters * Gilbert (given name), including a list of people and fictional characters *Gilbert (surname), including a list of people Places Australia * Gilbert River (Queensland) * Gilbert River (South ...

. To the south is the prominent crater

Ansgarius Ansgar (8 September 801 – 3 February 865), also known as Anskar, Saint Ansgar, Saint Anschar or Oscar, was Archbishop of Hamburg-Bremen in the northern part of the Kingdom of the East Franks. Ansgar became known as the "Apostle of the North" ...

, and to the southwest lies La Pérouse. This formation belongs to the category termed a walled plain. It has a worn, irregular outer wall that is overlaid by several small craters and there is a small break along the north-northeast. Along the northeastern rim is Kästner B, and to the southwest is the small Kästner E. A shallow, unnamed crater is attached to the southern rim. The interior floor is relatively level and featureless, with only a few small craterlets and minor ridges.

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 Kästner. The following craters have been renamed by the

IAU The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach ...

. * Kästner F — ''See''

Black Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have o ...

. Kästner B, R, and S are called ''Defoe'', ''Shekhov'', and ''Cellini'' on some older maps,LTO-81B4 Kiess
/ref> but these names were not approved by the IAU.

References

* * * * * * * * * * * * {{DEFAULTSORT:Kastner (crater) Impact craters on the Moon