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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] |
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] |
Pingré (crater)
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. The outer rim of this crater has become worn due to minor impacts, leaving the features rounded and irregular. The wall is nearly disintegrated in the southeast, and is overlain by a small crater along the eastern rim. The rim is also low and slumped to the northwest. The interior floor is relatively level, but marked by several small craters, which may be secondaries from Hausen or a more distal crater. These craters occur near the midpoint of the floor where a central peak may once have existed. Pingré lies to the southeast of the Mendel-Rydberg Basin, a 630 km wide impact basin of Nectarian age. Satellite craters By convention these features are identified on lunar maps ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sterling Publishing Co
Sterling Publishing Company, Inc. is a publisher of a broad range of subject areas, with multiple imprints and more than 5,000 titles in print. Founded in 1949 by David A. Boehm, Sterling also publishes books for a number of brands, including AARP, Hasbro, Hearst Magazines, and ''USA TODAY'', as well as serves as the North American distributor for domestic and international publishers including: Anova, the Brooklyn Botanic Garden, Carlton Books, Duncan Baird, Guild of Master Craftsmen, the Orion Publishing Group, and Sixth & Spring Books. Sterling also owns and operates two verticals, Lark Crafts and Pixiq. Sterling Publishing is a wholly owned subsidiary of Barnes & Noble, which acquired it in 2003. On January 5, 2012, ''The Wall Street Journal'' reported that Barnes & Noble had put its Sterling Publishing business up for sale. Negotiations failed to produce a buyer, however, and Sterling is reportedly no longer for sale as of March, 2012. In January 2022, Sterling rebranded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonathan's Space Report
''Jonathan's Space Report'' (JSR) is a newsletter about the Space Age, hosted at Jonathan's Space Page. It is written by Jonathan McDowell, a Center for Astrophysics Harvard & Smithsonian astrophysicist. It is updated as McDowell's schedule permits, but he tries to publish two issues each month. Originally the website was hosted on a Harvard University account, but was moved in late 2003 to a dedicated domain. Started in 1989, the newsletter reports on recent space launches, International Space Station activities and space craft developments. McDowell's report occasionally corrects NASA's official web sites, or provides additional data on classified launches that aren't available elsewhere. Associated projects on the JSR web site are: * A catalog of all known geosynchronous satellites and their current positions * A listing of satellite launch attempts * A cross-reference between catalog number and international designation of artificial satellites McDowell has long campaigne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge University Press
Cambridge University Press is the university press of the University of Cambridge. Granted letters patent by Henry VIII of England, King Henry VIII in 1534, it is the oldest university press A university press is an academic publishing house specializing in monographs and scholarly journals. Most are nonprofit organizations and an integral component of a large research university. They publish work that has been reviewed by schola ... in the world. It is also the King's Printer. Cambridge University Press is a department of the University of Cambridge and is both an academic and educational publisher. It became part of Cambridge University Press & Assessment, following a merger with Cambridge Assessment in 2021. With a global sales presence, publishing hubs, and offices in more than 40 Country, countries, it publishes over 50,000 titles by authors from over 100 countries. Its publishing includes more than 380 academic journals, monographs, reference works, school and uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Schiller (crater)
Schiller is a lunar impact crater located in the southwestern region of the Moon's near side. The rim of Schiller has an elongated shape that is amplified by its proximity to the lunar limb. The long axis lies along a line running northwest–southeast, with the wider girth located in the southeastern half. There is a slight bend in the elongation, with the concave side facing to the northeast. Schiller is thought to be a fusion of two or more craters. The crater rim is well-defined, with a terraced inner wall and a slight outer rampart. At the southeastern end, a smaller crater is connected to Schiller by a wide valley. Most of the crater floor is flat, most likely due to lava flooding. There are some bright patches that are most clearly visible under a high sun angle. A double ridge lies along the center of the northwest crater floor, forming a nearly linear formation that divides the floor in half. To the southwest of Schiller is the Schiller-Zucchius Basin, a Pre-Nectarian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Phocylides Holwarda
Johannes Phocylides Holwarda (''Jan Fokkesz, Jan Fokker, Johann Holwarda, Johannes Fokkes Holwarda, Jan Fokkens Holwarda, Jan Fokkes van haylen'') (February 19, 1618—January 22, 1651) was a Frisian astronomer, physician, and philosopher. He was a professor of philosophy at the University of Franeker from 1639 to 1651. Born in Holwerd, he is best remembered for his discovery of the length of Mira's (Omicron Ceti's) varying appearance cycle. In a systematic study in 1638, he found that Mira disappeared and reappeared in a varying cycle of about 330 days. Holwarda was also a supporter of "atomism". His ''Philosophia Naturalis, seu Physica Vetus-Nova'', published posthumously in 1651, defines matter and form: matter is extended and divided into atoms while form is the texture of atoms. According to Phocylides, bodies are formed from atoms and a lack of atoms. Atoms, which he distinguished as simple or compound, are solid corpuscles that receive motion directly from God. The luna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wargentin (crater)
Wargentin is an unusual lunar impact crater which has been filled to its rim by a basaltic lava flow, forming a raised plateau. When the lava flow occurred, it erupted from within the crater walls and proceeded to accumulate until overrunning the lowest portion of the rim. Some blockage then prevented the lava flow from returning to equilibrium. Since the time when this occurred, some ejecta has been deposited across the top, giving the surface a higher albedo than is typical for deposits of basalt. The rim of Wargentin is somewhat worn and is overlain by a few small craters. The outer wall climbs to a height of 0.3 km above the surrounding terrain. A spoked pattern of wrinkle ridges can be discerned on the surface, radiating from the center of the crater. Wargentin is located on the approaches to the southwest lunar limb, so that it appears elongated when viewed from the Earth. It is connected along the southeast rim to the slightly smaller crater Nasmyth, which is in t ... [...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] |
