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Neison (crater)
Neison is a lunar impact crater that lies to the south of the crater Meton, in the northern part of the Moon. The high latitude of this crater means that the crater appears foreshortened when viewed from the Earth, having an elliptical Elliptical may mean: * having the shape of an ellipse, or more broadly, any oval shape ** in botany, having an elliptic leaf shape ** of aircraft wings, having an elliptical planform * characterised by ellipsis (the omission of words), or by conc ... appearance even though it is nearly circular in shape. The outer rim of this crater has been heavily worn and eroded by smaller impacts, leaving only a low, uneven ridge surrounding the interior. There are several breaks in this rim, and the inner edge is notched by impacts. The interior has been resurfaced, covering the floor of many of these peripheral impacts. The result is a level plain within the shallow rim, with clefts to the southwest, southeast, and east-northeast. Only a few tiny craterlets ... [...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] |
Edmund Neville Neison
Edmund Neison FRS FRAS (27 August 1849 – 14 January 1940), whose real name was Edmund Neville Nevill, wrote a key text in selenography called ''The Moon and the Condition and Configuration of its Surface'' in 1876 and later set up the Natal Observatory in Durban, Natal Province. He also wrote a popular book on astronomy some years after immigrating to Durban. Early years and volunteer soldier He was born at Beverley, Yorkshire, England on 27 August 1849 and educated at Harrow School and New College, Oxford. During the Franco-Prussian War he volunteered with French forces and served with Marshal MacMahon. London 1871 to 1882 In 1871, Nevill returned to London and worked as parliamentary reporter to The Standard and also as theatre critic, but his interests included astronomy and chemistry. Nevill has the means to set up a private observatory in Hampstead and became known as amateur with a special interest in the Moon. Nevill was elected a fellow of the Royal Astronomica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
