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Schiller-Zucchius Basin
The Schiller-Zucchius Basin is a Pre-Nectarian impact basin on the near side of the moon. It is named after the elongated crater Schiller at the northeast margin and fresh crater Zucchius near the southwest margin. This basin has received the unofficial designation 'Schiller Annular Plain' among lunar observers. The basin has a clear but eroded outer rim and a partial inner ring. It is thus an example of a peak ring basin. Also at the center is a mass concentration (mascon), or gravitational high. The mascon was first identified by Doppler tracking of the Lunar Prospector spacecraft. The existence of the basin was confirmed by the GRAIL spacecraft. Other craters within the basin include Segner and Weigel, as well as many satellite craters. Due south of the basin is Bettinus, to the northwest of the basin are Phocylides and Nasmyth, to the north is Nöggerath, and to the east is Rost. File:Schiller-Zucchius basin topo.jpg, Topographic map File:Schiller-Zucchius basi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GRAIL
The Gravity Recovery and Interior Laboratory (GRAIL) was an American lunar science mission in NASA's Discovery Program which used high-quality gravitational field mapping of the Moon to determine its interior structure. The two small spacecraft GRAIL A (Ebb) and GRAIL B (Flow) were launched on 10 September 2011 aboard a single launch vehicle: the most-powerful configuration of a Delta II, the 7920H-10. GRAIL A separated from the rocket about nine minutes after launch, GRAIL B followed about eight minutes later. They arrived at their orbits around the Moon 25 hours apart. The first probe entered orbit on 31 December 2011 and the second followed on 1 January 2012. The two spacecraft impacted the Lunar surface on December 17, 2012. Overview Maria Zuber of the Massachusetts Institute of Technology was GRAIL's principal investigator. NASA's Jet Propulsion Laboratory managed the project. NASA budgeted US$496 million for the program to include spacecraft and instrument development, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rost (crater)
Rost is a lunar impact crater that is located in the southwestern part of the Moon, to the southeast of the elongated formation Schiller. To the southeast of Rost is the larger crater Scheiner. West-southwest of this formation is the smaller Weigel. This crater is a circular formation with a low rim and a relatively featureless inner wall and interior floor. There are some tiny craterlets around the rim, including one across the northwest wall and another on the inner wall to the south. The interior has no significant features, with only a tiny craterlet to mark the surface. Rost lies east of the Schiller-Zucchius Basin, and the outer rim of the basin lies between Rost and Rost A. 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 Rost. References Rost crater Gazetteer of Planetary Nomenclature, International Astronomical Union The International Astronomical Union (IAU; f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nöggerath (crater)
Nöggerath is a relatively small lunar impact crater in the southwest section of the Moon. It is located to the northwest of Phocylides, and is pointed toward by the northern elongation of Schiller. Nöggerath is a relatively unremarkable crater, with a smooth floor and a rim that is only slightly eroded and impacted at the southern edge. Nöggerath lies north of the Schiller-Zucchius Basin The Schiller-Zucchius Basin is a Pre-Nectarian impact basin on the near side of the moon. It is named after the elongated crater Schiller at the northeast margin and fresh crater Zucchius near the southwest margin. This basin has received the u .... 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 Nöggerath. References * * * * * * * * * * * * {{DEFAULTSORT:Noggerath (crater) Impact craters on the Moon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasmyth (crater)
Nasmyth is a lunar impact crater located near the southwestern limb of the Moon. It is attached to the southeast rim of the flooded crater Wargentin, and the southern half is overlain by the larger Phocylides. The rim of Nasmyth is worn and impacted in several locations by craterlets, most notably Nasmyth D which lies across the north rim. The floor has been flooded by lava flows in the past, making the surface relatively flat and the rim low. There is no central peak within the crater, but the floor is impacted by some small craterlets. Nasmyth lies to the northwest of the Schiller-Zucchius Basin The Schiller-Zucchius Basin is a Pre-Nectarian impact basin on the near side of the moon. It is named after the elongated crater Schiller at the northeast margin and fresh crater Zucchius near the southwest margin. This basin has received the u .... Satellite craters By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phocylides (crater)
Phocylides is a lunar impact crater located near the southwest rim of the Moon. It overlays the south rim of the crater Nasmyth to the north. To the northwest is the unusual plateau formation of Wargentin. Eastward is the merged formation Schiller, and in the southwest lies Pingré. The outer wall of Phocylides is worn and eroded, especially along the western edge. The northern edge of the rim is notched and irregular, with a rise of ground joining the south rim of Wargentin. The crater Phocylides F lies across the southern rim. The floor of Phocylides is flooded and relatively smooth, with a few small craterlets and no central peak. The most notable impact on the floor is a crater near the northeast rim. Phocylides lies to the northwest of the Schiller-Zucchius Basin The Schiller-Zucchius Basin is a Pre-Nectarian impact basin on the near side of the moon. It is named after the elongated crater Schiller at the northeast margin and fresh crater Zucchius near the southwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bettinus (crater)
Bettinus is a lunar impact crater located near the southwest limb. Due to its location, the crater has a distinctly oval shape because of foreshortening. To the south of the rim is the similar-sized crater Kircher, and to the northwest is the slightly smaller Zucchius. From the west to the southwest, closer to the limb, is the giant formation Bailly. The rim of Bettinus is only somewhat worn, with an inner wall that is wider to the northwest. The interior floor is relatively flat, with a central rise that is offset to the west of the midpoint. There is a small crater along the eastern rim. Bettinus lies due south of the Schiller-Zucchius Basin The Schiller-Zucchius Basin is a Pre-Nectarian impact basin on the near side of the moon. It is named after the elongated crater Schiller at the northeast margin and fresh crater Zucchius near the southwest margin. This basin has received the u .... Satellite craters By convention these features are identified on lunar maps by placin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weigel (crater)
Weigel is a small lunar impact crater that is located in the southwestern part of the Moon. It lies to the west-southwest of the slightly larger crater Rost, and due south of the elongated Schiller. To the west is Segner. The rim of this crater is slightly eroded, with a small crater across the northern edge and the satellite crater Weigel A and another smaller craterlet intruding slightly into the eastern face. The crater Weigel B, actually slightly larger than Weigel, is attached to the southwestern exterior. This satellite crater is overlain by multiple impacts along its northern and western rim. The inner walls of Weigel have only some minor irregularities, and generally slope straight down to the bottom. The interior floor is a level, nearly featureless plain. Weigel lies within the southeast portion of the Schiller-Zucchius Basin The Schiller-Zucchius Basin is a Pre-Nectarian impact basin on the near side of the moon. It is named after the elongated crater Schiller at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Segner (crater)
Segner is a lunar impact crater located near the southwestern limb of the Moon, to the northeast of the giant walled plain Bailly. The crater Zucchius is a few kilometers to the south-southwest of the rim, and to the north east lies the unusual formation Schiller. The smaller crater Weigel is located to the east. Segner has a low, worn rim, and is generally much less prominent than the nearby Zucchius. The floor is distinguished only by a pair of small craterlets and a slightly undulating surface. There is no indication of a central peak. A low ridge runs to the north from the edge of the northern rim. Segner lies within the southwest portion of the Schiller-Zucchius Basin The Schiller-Zucchius Basin is a Pre-Nectarian impact basin on the near side of the moon. It is named after the elongated crater Schiller at the northeast margin and fresh crater Zucchius near the southwest margin. This basin has received the u .... Satellite craters By convention these features are iden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar Prospector
''Lunar Prospector'' was the third mission selected by NASA for full development and construction as part of the Discovery Program. At a cost of $62.8 million, the 19-month mission was designed for a low polar orbit investigation of the Moon, including mapping of surface composition including Lunar hydrogen deposits, measurements of magnetic and gravity fields, and study of lunar outgassing events. The mission ended July 31, 1999, when the orbiter was deliberately crashed into a crater near the lunar south pole, after the presence of hydrogen was successfully detected. Data from the mission allowed the construction of a detailed map of the surface composition of the Moon, and helped to improve understanding of the origin, evolution, current state, and resources of the Moon. Several articles on the scientific results were published in the journal ''Science''. ''Lunar Prospector'' was managed by NASA Ames Research Center with the prime contractor Lockheed Martin. The Princip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar Orbiter 4
Lunar Orbiter 4 was a robotic U.S. spacecraft, part of the Lunar Orbiter program, Lunar Orbiter Program, designed to orbit the Moon, after the three previous orbiters had completed the required needs for Project Apollo, Apollo mapping and site selection. It was given a more general objective, to "perform a broad systematic photographic survey of lunar surface features in order to increase the scientific knowledge of their nature, origin, and processes, and to serve as a basis for selecting sites for more detailed scientific study by subsequent orbital and landing missions". It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data. Mission Summary The spacecraft was placed in a Free-return trajectory, cislunar trajectory and injected into an elliptical near polar high lunar orbit for data acquisition. The orbit was with an inclination of 85.5 degrees and a period of 12 hours. After initial photography on May 11, 1967 problems started occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mass Concentration (astronomy)
In astronomy, astrophysics and geophysics, a mass concentration (or mascon) is a region of a planet's or moon's crust that contains a large positive gravity anomaly. In general, the word "mascon" can be used as a noun to refer to an excess distribution of mass on or beneath the surface of an astronomical body (compared to some suitable average), such as is found around Hawaii on Earth. However, this term is most often used to describe a geologic structure that has a positive gravitational anomaly associated with a feature (e.g. depressed basin) that might otherwise have been expected to have a negative anomaly, such as the "mascon basins" on the Moon. Lunar and Martian mascons The Moon is the most gravitationally "lumpy" major body known in the Solar System. Its largest mascons can cause a plumb bob to hang about a third of a degree off vertical, pointing toward the mascon, and increase the force of gravity by one-half percent. Typical examples of mascon basins on the Moon are t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
