Coordinates | 65°07′S88°29′W / 65.11°S 88.49°W Coordinates: 65°07′S88°29′W / 65.11°S 88.49°W |
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Diameter | 163.24 km |
Depth | 3.9 km |
Colongitude | 95° at sunrise |
Eponym | Christian A. Hausen |
Hausen is a large lunar impact crater that lies along the south-southwestern limb of the Moon. It was named after German astronomer Christian A. Hausen by the IAU in 1961. [1]
The visibility of this crater is significantly affected by libration effects, although even under the best of conditions it is viewed nearly from on edge. It lies along the western edge of the immense walled plain Bailly. To the northeast is the crater Pingré on the near side, and to the north is the Arrhenius just on the far side of the lunar limb.
The rim of this crater is generally circular, with an outward bulge to the south-southeast. The inner wall is terraced at the northern and southern ends, and is more irregular along the eastern and western flanks. The rim along the east and southeast flanks displays slumping, producing a sharp edge. It is not significantly eroded or overlaid by craters, with only a single small craterlet along the southwest rim.
The interior floor is generally level, with a few sites of rough terrain. There is a complex formation of central peaks offset somewhat to the east of the midpoint. This formation extends further in the north–south direction and consists of several ridges separated by valleys. There is a lower range of hills just to the southeast of this range and a small cluster of hills to the south.
Hausen is the largest crater of Eratosthenian age. [2]
Hausen lies to the south of the Mendel-Rydberg Basin, a 630 km wide impact basin of Nectarian age.
The following craters have been renamed by the IAU:
Arrhenius is a lunar impact crater that is located just on the far side of the Moon, near the southwest limb. In this location the vicinity of the crater can be viewed during favorable librations, although it is viewed from on edge. To the south-southeast is the worn crater Blanchard, and De Roy lies further to the west.
Brianchon is a lunar impact crater that is located along the northwestern limb of the Moon. Due to its location, from the Earth the crater is seen from the edge and its visibility is somewhat affected by libration. Thus for a more detailed view, the crater must be viewed from orbit.
Sylvester is a lunar impact crater that is located near the north pole of the Moon, along the northern limb in the libration zone. It lies just to the south-southeast of the craters Grignard and Hermite; the latter of which is within one crater diameter of the pole. South of Sylvester is Pascal. Due to its location, Sylvester receives sunlight at only a low angle.
Fabry is a large lunar impact crater of the form termed a walled plain. It is located on the far side of the Moon, just beyond the northeastern limb. Parts of this area are sometimes brought into view by the effects of libration, but the terrain is seen from the edge and so not much in the way of detail can be observed.
Pingré is a lunar impact crater that is located near the southwest limb of the Moon, beyond the large crater Phocylides. It lies to the northwest of the huge walled basin Bailly, and to the east of the smaller Graff. Due to its location, this crater appears foreshortened when viewed from the Earth.
Blanchard is a lunar impact crater that lies on the far side of the Moon, just behind the southwestern limb. It lies to the south-southwest of the crater Arrhenius, and northwest of Pilâtre. Further to the south is the rugged terrain to the north of the walled plain Hausen.
Riemann is a lunar impact crater that is located near the northeastern limb of the Moon, and can just be observed edge-on when libration effects bring it into sight. It lies to the east-northeast of the large walled plain Gauss. To the southeast, beyond sight on the far side, is the crater Vestine.
Demonax is a lunar impact crater near the southern limb of the Moon. This location makes the crater difficult to observe due to foreshortening. The crater is also illuminated at a very low angle, when it is in the sunlit side. Demonax lies just to the north of the crater Scott, one of the south polar formations. To the north-northwest is Boguslawsky.
Drygalski is a large lunar impact crater that lies along the southern limb of the Moon. It partly overlies the crater Ashbrook to the west on the far side of the Moon. Just to the north of Drygalski is the smaller Boltzmann. The location of this crater restricts its observation from the Earth, and even under conditions of favorable libration it is viewed from the edge. It is only illuminated by the Sun at an oblique angle, and it lies close to the south polar craters that are permanently shielded from sunlight.
Helmholtz is a lunar impact crater, approximately 110 kilometers in diameter, that is located near the south-southeast limb of the Moon. Attached to the south-southeast rim of Helmholtz is the somewhat smaller crater Neumayer. The larger crater Boussingault is nearly attached to the west-southwestern rim. The crater is named after German physicist and physician Hermann von Helmholtz
Catalán is a small lunar impact crater that lies almost along the southwest limb of the Moon. At this position the crater is ill-suited for observation from the Earth as it is viewed almost from the side, and visibility is subject to libration effects. It lies to the west of the somewhat larger crater Baade, and south-southeast of Graff. This region is located in the outer southeastern part of the skirt of ejecta that surrounds the Mare Orientale impact basin, and the nearby surface is rugged and streaky. This crater is named after the Spanish scientist Miguel Antonio Catalán Sañudo (1894–1957) for his contributions to spectroscopy, an important exploratory tool in astronomy.
Chadwick is a lunar impact crater that lies on the far side of the Moon's surface, just beyond the southwestern limb. It is located to the northwest of the crater De Roy, and was previously designated De Roy X before being given its current name by the IAU. This region of the lunar surface lies at the southern end of the ejecta blanket that surrounds the Mare Orientale impact basin.
Coulomb is a lunar impact crater that lies behind the northwestern limb, on the far side of the Moon. It is located to the west-southwest of the large crater Poczobutt, and northeast of Sarton.
Inghirami is a lunar impact crater that is located toward the southwestern limb of the Moon. It lies to the southwest of the large walled plain Schickard. Northwest of Inghirami is the wide Vallis Inghirami, a wide, straight valley that is radial to the Mare Orientale impact basin. The valley has a length of about 140 kilometers and ends at the northern edge of the crater.
Plutarch is a lunar impact crater that lies near the north-northeastern limb of the Moon, just to the south of the irregular crater Seneca. To the southeast is the flooded crater Cannon. The proximity of this crater to the limb causes it to appear foreshortened when viewed from the Earth, but it is actually a circular formation.
Chappe is a lunar impact crater that lies along the southwestern limb of the Moon. It is nearly attached to the northern limb of the walled plain Hausen, and an equal distance from the crater Pilâtre. To the north-northwest is Blanchard.
Pilâtre is a lunar impact crater near the southwestern limb of the Moon. It is located just to the north-northwest of the much larger walled plain Hausen. The satellite crater Pingré S is attached to the eastern rim, with Pingré itself located farther to the northeast. Just to the west-southwest is Chappe, a formation of similar dimension to Pilâtre.
Kao is a small lunar impact crater that is located near the eastern limb of the Moon. It lies near the southern edge of the Mare Smythii, a lunar mare that continues onto the far side of the surface. This crater lies to the east-southeast of the crater Widmannstätten. Less than a crater diameter to the north-northeast is the small crater Tucker.
von Braun, named after the rocket pioneer Wernher von Braun, is a lunar impact crater located near the northwestern limb of the Moon. It lies along the western edge of the Oceanus Procellarum, to the northeast of the crater Lavoisier. The northeastern rim of this crater is on the edge of the Sinus Roris, a bay feature in the northwestern part of the Oceanus Procellarum. Due to its proximity to the limb, this crater appears significantly foreshortened when viewed from the Earth.
Debus is a small lunar impact crater that is located on the far side of the Moon, past the eastern limb. It lies to the east-southeast of the crater Ganskiy, and just to the west of the huge walled plain Pasteur.