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581por Harrison, Ken M“…They are relatively inexpensive and by far the easiest type of astronomical spectroscope to use, and so are the starting point for most beginners. …”
Publicado 2012
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582“…If you had purchased an inexpensive astronomical telescope a few years ago, disappointment would have been almost guaranteed. …”
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583por Lunan, Duncan“…Most stone circles are astronomically aligned, which has led to the modern debate over the significance of the alignments. …”
Publicado 2013
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584por United States. Naval Observatory“…Naval Observatory's Astronomical Applications Department, especially for astronomers, surveyors, meteorologists, navigators and others who regularly need accurate information on the positions, motions, and phenomena of celestial objects. …”
Publicado 2005
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585por Orchiston, Wayne“…This survey of a neglect ed but rich national astronomical history, does the subject full and comprehensive justice.…”
Publicado 2016
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586por Crelinsten, Jeffrey“… Einstein's Jury is the dramatic story of how astronomers in Germany, England, and America competed to test Einstein's developing theory of relativity. …”
Publicado 2006
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587por Krages, Esq, Bert P“…Detailing the photographic equipment and astronomical instruments needed to capture celestial images, this guide shows how astrophotography can be accessible to all photographers. …”
Publicado 2003
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588por Suh, Myoung-Gyun, Yi, Xu, Lai, Yu-Hung, Leifer, S., Grudinin, Ivan S., Vasisht, G., Martin, Emily C., Fitzgerald, Michael P., Doppmann, G., Wang, J., Mawet, D., Papp, Scott B., Diddams, Scott A., Beichman, C., Vahala, Kerry“…Conventional LFCs require complex filtering steps to be compatible with astronomical spectrographs, but a new chip-based microresonator device, the Kerr soliton microcomb(3–8), is an ideal match for astronomical spectrograph resolution and can eliminate these filtering steps. …”
Publicado 2018
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589“…This edition helps you learn what astronomers are doing with those huge dishes dotted around the world.…”
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590“…A high-precision geologic time scale is the essential key for understanding the Earth’s evolutionary history and geologic processes. Astronomical tuning of orbitally forced stratigraphic records to construct high-resolution Astronomical Time Scales (ATS) has led to a progressive refinement of the geologic time scale over the past two decades. …”
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591por Ruggles, Clive“…Archaeoastronomy, which is concerned with cultural perceptions and understandings of astronomical phenomena, is a rich cross-disciplinary field. …”
Publicado 2015
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592por Lashley, Jeff“…Radio astronomy is far from being beyond the scope of amateurs astronomers, and this practical, self-contained guide for the newcomer to practical radio astronomy is an ideal introduction. …”
Publicado 2010
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593por Burkhardt, G, Esser, U, Hefele, H, Heinrich, Inge, Hofmann, W, Krahn, D, Matas, V, Schmadel, Lutz, Wielen, Roland, Zech, G“…Thus, the astronomical and astrophysical literature of the five-year period 1989 - 1993 is covered by this volume.…”
Publicado 1994
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594“…However, a wide field will cause some spatially variant optical aberrations, which makes it difficult to obtain stellar information accurately from astronomical images. Therefore, we propose a network for restoring wide-field astronomical images by correcting optical aberrations, called ASANet. …”
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595por Xie, Zongliang, Ma, Haotong, Qi, Bo, Ren, Ge, He, Xiaojun, Dong, Li, Tan, Yufeng, Qiao, Shan“…The next generation of optical sparse aperture systems will provide high angular resolution for astronomical observations. Spatial modulation diversity (SMD) is a newly developed post-processing technique for such telescopes, faced with challenges of imaging faint objects, which are very attractive for astronomers but always make raw diversity images suffer serious photon noise. …”
Publicado 2017
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596por Schultz, David“…Even today, M31 is a major source of new astronomical discoveries, and it also remains one of the most popular (and rewarding) celestial objects for amateur astronomers to observe and study. …”
Publicado 2012
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597por Stevenson, David“…Star clusters form many of the most dazzling objects in the astronomers’ catalogs. Many amateur astronomers are interested in exploring how these objects are created and what it would be like to live among these objects. …”
Publicado 2015
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598por Kwok, Sun“…Using pictures of the sky observed from different places on Earth, as well as drawings of ancient astronomical methods and tools, Prof. Sun Kwok tells this story in an entertaining and fascinating way. …”
Publicado 2017
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599por Penprase, Bryan E“…Beautiful photographs of temples in India and Asia have been added, as well as new diagrams explaining the alignment of these structures and the astronomical underpinnings of temples within the Pallava and Chola cultures. …”
Publicado 2017
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600por Liu, PhD, Charles“…With chapters broken into various astronomical studiesincluding the universe, galaxies, planets, and space explorationthis fully updated resource is an ideal companion for students, teachers, and amateur astronomers, answering more than 1,000 questions, such as Is the universe infinite? …”
Publicado 2013
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