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Dirichlet–Jackson Basin
The Dirichlet–Jackson Basin is a pre-Nectarian impact basin on the far side of the Moon. It is named after the craters Dirichlet (on the southeast margin) and Jackson (northwest of the basin). It lies to the north of the similar-sized basin Korolev. The basin is not obvious on the lunar surface due to being obscured by subsequent impacts. It was confirmed by topographic mapping by the Clementine spacecraft in 2000. The existence of the basin was confirmed by the GRAIL spacecraft. Craters within the basin include Raimond, Bredikhin, Mitra, and Henyey (adjacent to Dirichlet), as well as many satellite craters. Due south of the basin is Engel'gardt (and the Selenean summit). To the southwest are Lebedinskiy and Zhukovskiy, and McMath is to the northwest. To the northeast is Mach, and to the southeast is Tsander. File:Dirichlet-Jackson basin topo.jpg, Topographic map File:Dirichlet-Jackson basin GRAIL gravity.jpg, Gravity map based on GRAIL External links KAGUYA Tak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bredikhin (crater)
Bredikhin is a lunar impact crater that is located on the far side of the Moon. It lies just to the west of the crater Mitra, and northeast of Raimond. This is a worn crater formation with features that have been dusted by material from the ray system of Jackson, about three crater diameters to the northwest. The rim is overlaid by a small crater along the west-northwest, and by a formation of craterlets along the southwest. The most prominent feature within the interior is the crater which overlays much of the northwest floor, including the midpoint. Bredikhin lies within the Dirichlet-Jackson Basin. 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 Bredikhin. See also * Asteroid 786 Bredichina 786 Bredichina (Minor planet provisional designation, ''prov. designation'': ''or'' ) is a carbonaceous and very large background asteroid, approximately in diameter, loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mach (crater)
Mach is a large lunar impact crater of the class known as a walled plain. It is located on the far side of the Moon and cannot be viewed directly from the Earth. Nearby craters of note include Joule to the northeast, Mitra attached to the western outer rim, and Henyey to the southwest. This is a prominent but eroded formation with multiple craters along the rim and interior. The crater Harvey breaks across the eastern rim, and its outer rampart spills across the interior floor of Mach. The overall shape of Mach resembles a pear, with a prominent outward bulge to the northeast. Such a bulge can be caused by a second, merged crater. The northern edge is also the most worn and overlain by impacts. The interior of Mach is marked by several small craters, particularly in the northeastern bulge. Several craters also lie along the edges to the west and northwest. The remainder of the interior floor is relatively level, when compared to the terrain that surrounds Mach. There is a forma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McMath (crater)
McMath is an impact crater on the Moon's far side. It lies to the south-southwest of the prominent crater Jackson, and material from the ray system centered on Jackson lies across most of McMath. Farther to the south lies the crater pair of Zhukovskiy and Lebedinskiy. This is a worn, torn up, and eroded crater formation with several small craters along the rim edge. The rim is the most heavily worn at the northern end, but is more intact to the east and west. The interior floor is relatively level, and is marked by only a few tiny craterlets. McMath lies to the northwest of the Dirichlet-Jackson Basin. 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 McMath. See also * 1955 McMath 1955 McMath, provisional designation , is a stony Koronis asteroid from the outer region of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 22 September ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhukovskiy (crater)
Zhukovskiy is a lunar impact crater that lies on the far side of the Moon. It forms a pair with Lebedinskiy, which is attached to the eastern rim. There are no other named craters of note in the immediate vicinity, although the immense walled plain Korolev lies farther to the southeast. The rim of Zhukovskiy has become somewhat eroded, particularly at the northern and southern extremes. The interior floor is relatively level, although a small but prominent crater occupies part of the southern half. Zhukovskiy is a crater of Nectarian age. Professional Paper 1348. By Don E. Wilhelms, John F. McCauley, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lebedinskiy (crater)
Lebedinskiy is an impact crater on the far side of the Moon. It is attached to the eastern outer rim of the somewhat larger crater Zhukovskiy. About two crater diameters to the east-southeast lies the smaller Engel'gardt. The satellite crater Lebedinskiy P lies in the southern indentation of terrain between Lebedinskiy and Zhukovsky, and is nearly attached to the southwest rim of Lebedinskiy. This is a relatively well-formed crater with a circular outer rim that is only slightly eroded. The inner wall has some slumped shelves and slight terracing along the north and west. The interior floor is generally level, with a low central rise offset to the east of the midpoint, and only a few tiny craterlets marking the surface. Lebedinskiy is a crater of Nectarian age. |
Selenean Summit
Selenean summit refers to the "highest" point on the Moon, notionally similar to Mount Everest on the Earth. At some 10,786 m (35,387 ft) above the lunar mean, it is nearly twenty percent 'taller' than Earth's relative highest point, Everest. The summit is located along the north-eastern rim of Engel'gardt crater. Although methods of measurement differ somewhat (e.g., the Moon lacks a sea level), since its discovery in 2010 by the LRO teams, nowhere else has surpassed this region's height measurements on the lunar surface. Approximate coordinates for the summit are . The summit is located on the far side of the Moon relative to Earth. See also *Mons Huygens References {{reflist, refs= {{cite web , url = http://www.nasa.gov/mission_pages/LRO/multimedia/lroimages/lroc-20101027-highest.html , title = Highest Point on the Moon , date = 2010-10-27 , publisher = NASA The National Aeronautics and Space Administration (NASA ) is an independent age ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henyey (crater)
Henyey is a lunar impact crater that lies on the far side of the Moon from the Earth. It is attached at the southern end to the northern rim of the crater Dirichlet. Less than a crater diameter to the northeast is the large crater Mach, and to the northwest lies Mitra ''Mitra'' ( Proto-Indo-Iranian: ''*mitrás'') is the name of an Indo-Iranian divinity from which the names and some characteristics of Rigvedic Mitrá and Avestan Mithra derive. The names (and occasionally also some characteristics) of these t .... This is a worn and eroded crater that has been partly disintegrated by subsequent impacts. The elongated crater Henyey U is attached to the western outer rim. The western interior floor of Henyey is disrupted by some small craters. Henyey lies on the eastern margin of the Dirichlet-Jackson Basin. 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 Henyey. See ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitra (crater)
Mitra is a lunar impact crater that is attached to the western outer rim of the larger crater Mach, on the far side of the Moon. Just to the west of Mitra is Bredikhin, and to the south-southeast lies Henyey. It is named after Sisir Kumar Mitra, who was an Indian physicist and Padma Bhushan award recipient known for his pioneering work in the field of ionosphere and radiophysics. This is a heavily eroded formation with an outer rim that has been damaged by subsequent impacts. Attached to the exterior along the southeast is the satellite crater Mitra J. A number of smaller impacts lie along the rim edge, and very little of the original rim remains intact. Within the interior, a smaller crater occupies the southwestern part of the floor, and a small, cup-shaped crater lies across the northeast rim of this formation and very close to the midpoint of Mitra. The remaining floor is marked only by a few small and tiny craterlets. Mitra lies within the Dirichlet–Jackson Basin. Sate ... [...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] |
Apollo 11
Apollo 11 (July 16–24, 1969) was the American spaceflight that first landed humans on the Moon. Commander Neil Armstrong and lunar module pilot Buzz Aldrin landed the Apollo Lunar Module ''Eagle'' on July 20, 1969, at 20:17 UTC, and Armstrong became the first person to step onto the Moon's surface six hours and 39 minutes later, on July 21 at 02:56 UTC. Aldrin joined him 19 minutes later, and they spent about two and a quarter hours together exploring the site they had named Tranquility Base upon landing. Armstrong and Aldrin collected of lunar material to bring back to Earth as pilot Michael Collins flew the Command Module ''Columbia'' in lunar orbit, and were on the Moon's surface for 21 hours, 36 minutes before lifting off to rejoin ''Columbia''. Apollo 11 was launched by a Saturn V rocket from Kennedy Space Center on Merritt Island, Florida, on July 16 at 13:32 UTC, and it was the fifth crewed mission of NASA's Apollo program. The Apollo spacecraft had three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
