Relevant bibliographies by topics / Spherical astronomy

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Spherical astronomy'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 July 2024

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Journal articles on the topic "Spherical astronomy"

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Inayah, Maulida, and Ahmad Izzuddin. "Universal Solution of Medieval Spherical Astronomy." KULMINASI: Journal of Falak and Sharia 1, no. 2 (October 6, 2023): 1–25. http://dx.doi.org/10.22373/kulminasi.v1i2.4173.

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Spherical astronomy is a part of astronomy that figures of the sky as a sphere. It concerns the study of astronomical coordinate frames, the direction and apparent motion of celestial bodies, the determination of positions from astronomical observations, and the errors that can occur in observations. Spherical astronomy makes it easier for humans to determine the direction and position of celestial bodies relative to observers on Earth. In the history of human civilization, spherical astronomy has been the solution to determining the time of worship for medieval Muslims. Especially during the glory days of the Mamluks, Egypt and Syria. This article was written based on literature research with qualitative method as an approach. Then the collecting data was carried out by the documentation method on various notes, books, transcripts and images could be found. Then the data was analyzed descriptively. The results of this research show that Egyptian and Syrian astronomers during Mamluk reign (between the 13th-15th centuries) made a major contribution to the progress and development of science, especially in astronomy. Both the preparation of astronomical tables and various astronomical tools or instruments they designed.
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Gurm, H. S. "Teaching of Astronomy in India." International Astronomical Union Colloquium 105 (1990): 389–93. http://dx.doi.org/10.1017/s0252921100087340.

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Studies of the skies have dominated intellectual activities since ancient man. In this respect, India has a very long tradition of such recorded activity, covering the observations of celestial bodies both as a science and as mythology (Gurm, 1980). The first half of the Christian era witnessed the evolution of spherical astronomy as a part of the study of mathematics (algebra and trigonometry) and its application to astrology. The evolution of spherical astronomy culminated in the concrete manifestation in the northern parts of India in the form of Jantar-Mantars by Raja Jai Singh (Mayer, 1979) in the early eighteenth century. Interestingly, spherical astronomy remained one of the most important activities in the study of astronomy during the British period too. Some of the older treatises on this subject during the nineteenth century were written in the Offices of the Survey of India.
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Plofker, Kim. "Spherical Trigonometry in the Astronomy of the Medieval Kerala School." Highlights of Astronomy 11, no. 2 (1998): 722–23. http://dx.doi.org/10.1017/s153929960001858x.

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Although the methods of plane trigonometry became the cornerstone of classical Indian mathematical astronomy, the corresponding techniques for exact solution of triangles on the sphere’s surface seem never to have been independently developed within this tradition. Numerous rules nevertheless appear in Sanskrit texts for finding the great-circle arcs representing various astronomical quantities; these were presumably derived not by spherics per se but from plane triangles inside the sphere or from analemmatic projections, and were supplemented by approximate formulas assuming small spherical triangles to be plane.
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Cardoso, Jorge, Décio Martins, Helmuth Malonek, and Carlos Fiolhais. "Manuel dos Reis e a Astronomia em Portugal de 1930 a 1970." História da Ciência e Ensino: construindo interfaces 20 (December 29, 2019): 550–67. http://dx.doi.org/10.23925/2178-2911.2019v20p550-567.

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Resumo Descreve-se a evolução do Observatório Astronómico da Universidade de Coimbra de 1930 a 1970, destacando- se o exercício das funções de diretor por Manuel dos Reis (1900-1992), de 1934 a 1970. Fonte primordial é o espólio documental de Manuel dos Reis à guarda do Arquivo da Universidade de Coimbra, que inclui programas, lições, problemas, exames, estudos e notas, e outros manuscritos sobre História da Astronomia, Astronomia (Geral, Mecânica, Esférica e Geodésica), Astronomia Medieval, e Astronomia Náutica dos Descobrimentos. Engloba ainda listas bibliográficas, rascunhos das comunicações e discursos sobre Astronomia Náutica proferidos na Academia das Ciências de Lisboa. Apresenta-se, em particular, um documento datilografado, inédito, provavelmente da década de 30, com o título “Reorganização do ensino da Astronomia e da investigação astronómica”, onde Reis, após descrever brevemente a história da Astronomia, refere a Astrofísica como o “novo capítulo da Astronomia”, e reflete sobre o ensino e investigação da Astronomia, e sobre o funcionamento dos Observatórios Astronómicos de Coimbra e de Lisboa (Tapada da Ajuda), e do Observatório Meteorológico do Porto (Serra do Pilar).Palavras-chave: História da Astronomia em Portugal; Astrofísica, Observatório Astronómico da Universidade de Coimbra. Abstract The evolution of the Astronomical Observatory of the University of Coimbra from 1930 to 1970 is described, highlighting Manuel dos Reis (1900-1992) role as director from 1934 to 1970. Main source is the collection of Manuel dos Reis documentation in the Archive of the University of Coimbra, which includes programs, lessons, problems, exams, studies and notes and other manuscripts on the History of Astronomy, Astronomy (General, Mechanical, Spherical and Geodesical), Medieval Astronomy, Nautical Astronomy of the Portuguese Discoveries. It also includes lists of bibliographical references, minutes of communications and speeches on Nautical Astronomy delivered at the Academy of Sciences of Lisbon. A typewritten, unpublished document, with the title "Reorganization of the teaching of astronomy and astronomical investigation”, probabbly from the 1930s, is presented. Reis, after a brief description of the history of Astronomy, describes Astrophysics as the "new chapter of Astronomy", reflects on the teaching and research on Astronomy, and on the operation of the Astronomical Observatories of Coimbra and Lisbon (Tapada da Ajuda), and the Meteorological Observatory of OPorto (Serra do Pilar). Keywords: History of Astronomy in Portugal; Astrophysics; Astronomical Observatory of the University of Coimbra.
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Faraoni, Valerio. "Turnaround physics beyond spherical symmetry." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012017. http://dx.doi.org/10.1088/1742-6596/2156/1/012017.

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Abstract The concept of turnaround radius in an accelerating universe is generalized to arbitrarily large deviations from spherical symmetry, as needed by astronomy. As a check, previous results for small deviations from spherical symmetry are recovered.
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Luz Pelissari de Oliveira, Christian, and Fernando Pereira de Souza. "TRIGONOMETRIA ESFÉRICA APLICADA NA ASTRONOMIA DE POSIÇÃO." COLLOQUIUM EXACTARUM 10, no. 2 (June 1, 2018): 60–67. http://dx.doi.org/10.5747/ce.2018.v10.n2.e239.

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The present article is the result of a research work of the Degree in Mathematics in the scope of the Tutorial Education Program -PET. The work deals with concepts of Spherical Trigonometry, which has several fields of applications between mathematics and physics, related to cartographic problems, navigation and astronomy. The goal is to explore problems of astronomy applications of celestial bodies by making use of trigonometry concepts in the sphere to study positions and directions of stars in terms of a celestial sphere. In order to reach this objective, the article presents concepts of a smaller distance between two points in the sphere, a triangle of position that is the spherical triangle, the fundamental relation known as law of cosines, the Celestial Sphere, its elements, its coordinates in the equatorial system, horizontal system and time system. Thus, the work seeks to encourage students and teachers to work on Spherical Geometry in the classroom
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Firneis, M., and F. Firneis. "On the use of quaternions in spherical and positional astronomy." Astronomical Journal 91 (January 1986): 177. http://dx.doi.org/10.1086/113998.

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Loizeau, Nicolas, and Glennys R. Farrar. "Non-spherical dark matter structures detection." Journal of Cosmology and Astroparticle Physics 2022, no. 03 (March 1, 2022): 049. http://dx.doi.org/10.1088/1475-7516/2022/03/049.

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Abstract A rotation curve inequality that holds for spherically symmetric mass distributions is derived, and tested against the SPARC galaxy rotation curves dataset. We identify several Galaxies, e.g. NGC7793 and UGC11557, which are candidates for hosting non-spherical dark matter structures that could be detected by more precise measurements.
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Tolchelnikova, S. A., and K. N. Naumov. "On the matter of proving Euclidean fifth postulate and the origin of non-Euclidean geometries." Geodesy and Cartography 950, no. 8 (September 20, 2019): 2–11. http://dx.doi.org/10.22389/0016-7126-2019-950-8-2-11.

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The Euclidean geometry was developed as a mathematical system due to generalizing thousands years of measurements on the plane and spherical surfaces. The development of celestial mechanics and stellar astronomy confirmed its validity as mathematical principles of natural philosophy, in particular for studying the Solar System bodies’ and Galaxy stars motions. In the non-Euclidean geometries by Lobachevsky and Riemann, the third axiom of modern geometry manuals is substituted. We show that the third axiom of these manuals is a corollary of the Fifth Euclidean postulate. The idea of spherical, Riemannian space of the Universe and local curvatures of space, depending on body mass, was inculcated into celestial mechanics, astronomy and geodesy along with the theory of relativity. The mathematical apparatus of the relativity theory was created from immeasurable quantities
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Krassovitskiy, Pavel M., and Fedor M. Pen’kov. "Three-Dimension Calculation for the Scattering Problem for Non-Spherical Potential." Physics 6, no. 1 (March 6, 2024): 368–75. http://dx.doi.org/10.3390/physics6010024.

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The interaction of the 238U with a neutron is studied. Correct accounting for the non-spherical shape of the uranium nucleus is in focus. The optical potential is used as a model. It is shown that the spherically symmetric and non-spherical potentials give different scattering patterns, in particular different resonance features of the cross-section. The possibility of using the method as an extension of the particle–rotor model of the nucleus is illustrated.
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Dissertations / Theses on the topic "Spherical astronomy"

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Hu, Xuanyu. "Comparison of Ellipsoidal and Spherical Harmonics for Gravitational Field Modeling of Non-Spherical Bodies." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1339607441.

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Kelly, John T. "Practical astronomy during the seventeenth century almanac-makers in America and England /." New York : Garland Pub, 1991. http://catalog.hathitrust.org/api/volumes/oclc/22909220.html.

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Edwards, Mark. "On the search for intermediate duration gravitational waves using the spherical harmonic basis." Thesis, Cardiff University, 2013. http://orca.cf.ac.uk/53498/.

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The main focus of the work described here within, is the development of an analysis pipeline that can detect gravitational waves transients that have a duration from a large fraction of a second up to 100 seconds. Firstly, we will present the basic theory of gravitational waves, their generation and their detection. We will then review the current state of the art of gravitational waves transient search algorithms and their limitations. We also introduce the coherent search pipeline that has been developed from the ground up to find such intermediate length gravitational waves, and discuss in detail how it differs from other pipelines, and what makes it so well suited to this task. Further, we will describe the powerful glitch rejection algorithm and sky localisation solution that using the spherical harmonic basis made possible. Finally, we demonstrate the use of this method on real data, and compare our results against a mature pipeline.
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Mohapi, Neo. "A study of spherical solutions in chameleon scalar-tensor theories." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1013315.

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The equivalence principle has proven to be central to theories of gravity, with General Relativity being the simplest and most elegant theory to embody the principle. Most alternative theories of gravity struggle to satisfy the principle and still be distinct from GR. Extensions of cosmological and quantum theories question the irrefutably of the equivalence at every scale. The possibility of an equivalence principle violation at galactic scales would be an exciting prospect. In this thesis, we will carefully examine the equivalence principle through the study of chameleon scalar-tensor theories, this will include solutions for hypothetical stars known as boson stars. Such theories find varied application, especially in cosmology, where they model dark energy and inflation. The AWE hypothesis, is an instance of this. It is a nonuniversally coupled model in which violations of the equivalence principle on galactic scales may be apparent. We investigate spherically symmetric and static solutions within the framework of this theory. The constraints obtained from galactic rotation curves results in values of the couplings that show no significant violation of the equivalence principle or values consistent with a theory of dark energy
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Zhao, Lei Wang Anzhong. "Gravitational collapse of spherical clouds and formation of black holes in the background of dark energy." Waco, Tex. : Baylor University, 2006. http://hdl.handle.net/2104/4991.

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USUI, Tetsuo. "O globo terrestre e a esfera celeste : uma abordagem interdisciplinar de matemática, geografia e astronomia." Universidade Federal Rural de Pernambuco, 2014. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6710.

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Submitted by (lucia.rodrigues@ufrpe.br) on 2017-03-29T14:39:03Z No. of bitstreams: 1 Tetsuo Usui.pdf: 2577747 bytes, checksum: 9114b8620e50bf459a5b0f41ed172e08 (MD5)
Made available in DSpace on 2017-03-29T14:39:03Z (GMT). No. of bitstreams: 1 Tetsuo Usui.pdf: 2577747 bytes, checksum: 9114b8620e50bf459a5b0f41ed172e08 (MD5) Previous issue date: 2014-08-25
This work aims to establish a connection among Mathematics with Geography and Astronomy. In this perspective it aims to encompass an interdisciplinary approach in understanding the geographical concepts of the globe, as well as the concepts inherent in the celestial sphere underlying the theoretical foundations of Euclidean Geometry, in order to present a logical and deductive structure of Geometry and Trigonometry in that sphere. This work complements the existing gap between the subjects of Geography and Mathematics in High School because it gives Mathematical supports to the lines (parallels and meridians) and geographic coordinates. Being therefore useful for undergraduate Mathematics students, the same way that teachers of Mathematics and Geography from High School and Elementary Education. Moreover, it also contemplates the sky watchers who wish to have a look at Astronomy from a point of view of Greek antiquity, since the study of Spherical Trigonometry was totally linked to the celestial study.
O presente trabalho tem como objetivo principal estabelecer uma conexão da Matemática com a Geografia e a Astronomia. Nesta perspectiva visa contemplar uma abordagem interdisciplinar na compreensão dos conceitos geográficos do globo terrestre, assim como, dos conceitos inerentes à esfera celeste acoplados na fundamentação teórica de Geometria Euclidiana, a fim de apresentar uma estrutura lógica e dedutiva da geometria e da trigonometria na esfera. O trabalho complementa a lacuna existente entre as disciplinas de Geografia e Matemática do Ensino Médio, pois fundamenta matematicamente, as linhas (paralelos e meridianos) e coordenadas geográficas. Sendo, portanto, útil para alunos de Graduação de Licenciatura em Matemática, da mesma forma que aos professores de Matemática e Geografia do Ensino Médio e Fundamental. Além disso, também contempla aos observadores do céu que queiram olhar a astronomia de um ponto de vista da antiguidade grega, pois o estudo da trigonometria esférica estava totalmente vinculado ao estudo celestial.
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Thomas, Derek C. "Theory and Estimation of Acoustic Intensity and Energy Density." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2560.pdf.

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Schreiner, Michael [Verfasser]. "Wavelet Approximation by Spherical Up Functions / Michael Schreiner." Aachen : Shaker, 2004. http://d-nb.info/1170537413/34.

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Younis, Ghadi [Verfasser], Matthias [Akademischer Betreuer] Becker, Reiner [Akademischer Betreuer] Jäger, and Carl [Akademischer Betreuer] Gerstenecker. "Regional Gravity Field Modeling with Adjusted Spherical Cap Harmonics in an Integrated Approach / Ghadi Younis. Betreuer: Matthias Becker ; Reiner Jäger ; Carl Gerstenecker." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2013. http://d-nb.info/1108093442/34.

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Brossard, Alexis. "Optimization of spherical proportional counter backgrounds and response for low mass dark matter search." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASS041.

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Les compteurs proportionnels sphériques sont utilisés pour la recherche de matière noire par la collaboration NEWS-G depuis 2013 avec le détecteur SEDINE installé au Laboratoire Souterrain de Modane. Ce premier détecteur a permis d'établir une nouvelle limite de la section efficace d'interaction WIMP-nucléon pour des WIMPs de masse inférieur à 0.6 GeV/c². Depuis, la collaboration travail à la mise au point d'un nouveau détecteur. Cette thèse se concentre sur deux aspects améliorés pour le second détecteur. L'étude du bruit de fond observé par SEDINE a permis de conclure que celui-ci est dominé par le présence de la chaine de désintégration du Pb²¹⁰ sur les surfaces et dans le matériaux composant le détecteur et son blindage. Ceci a permis de sélectionner des matériaux et des procédés de fabrication permettant de réduire le bruit de fond du prochain détecteur. Le second développement concerne l'anode du détecteur. Placée au centre de la sphère, l'anode assure la formation du signal. Les derniers développements montrent la capacité de ce composant à assurer la détection d'électrons uniques en étant stable et avec une bonne résolution
The spherical proportional counters have been used by the NEWS-G collaboration since 2013 for dark matter search with the SEDINE detector installed at the Laboratoire Souterrain de Modane. This first detector allowed for establishing a new limit on the WIMP-nucleon cross section for WIMPs of mass less than 0.6 GeV/c². Since then, the collaboration has been working on the development of a new detector. This thesis focuses on two improved aspects of the second detector. The study of the background observed by SEDINE led to the conclusion that it is dominated by the presence of Pb²¹⁰ decay chain on the surfaces and in the materials making up the detector and its shielding. This allowed for the selection of materials and manufacturing methods to reduce the background noise of the next detector. The second development concerns the detector anode. Placed in the center of the sphere, the anode ensures the formation of the signal. The latest developments show the ability of this component to ensure the detection of single electrons while being stable and with good resolution. This study made it possible to develop a new generation of detector which will be installed at SNOLAB in 2020
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Books on the topic "Spherical astronomy"

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Taff, Laurence G. Computational spherical astronomy. Malabar, Fla: Krieger Pub. Co., 1991.

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Lester, John B. Practical astronomy: An introduction to the methods of astronomy. [Mississauga: University of Toronto at Mississauga], 2005.

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al-Raqqām, Muḥammad ibn Ibrāhīm Ibn. Risāla fī ʻilm al-ẓilāl de Muhammad Ibn al-Raqqām al-Andalusī. [Barcelona]: Universidad de Barcelona, Instituto "Millás Vallicrosa" de Historia de la Ciencia Arabe, 1988.

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al-Raqqām, Muḥammad ibn Ibrāhīm Ibn. Risāla fī ʻilm al-ẓilāl de Muhammad Ibn al-Raqqām al-Andalusī. [Barcelona]: Universidad de Barcelona, Instituto "Millás Vallicrosa" de Historia de la Ciencia Arabe, 1988.

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Christian, Dumoulin. Astronomie pratique et informatique. Paris: Masson, 1987.

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J, Blondin, and Guillet Amédée 1863?-1939, eds. Astronomie sphérique: Notes sur le cours professé pendant l'année 1887. Paris: G. Carré, 1991.

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Sarkar, Tapan. Theories on astronomical bodies. Calcutta, India: N. Sarkar, 1991.

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Siṃha, Candraśekhara. Siddhāntadarpaṇaḥ. Calcutta: Indian Depository, 1991.

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Siṃha, Candraśekhara. Siddhānta darpaṇa: Bhūmikā, mūla, tathā anuvāda sahita. Dillī: Nāga Prakāśaka, 1997.

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DeVorkin, David H. Practical astronomy: Lectures on time, place, and space. Washington, D.C: Published for the National Air and Space Museum by the Smithsonian Institution Press, 1986.

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Book chapters on the topic "Spherical astronomy"

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Karttunen, Hannu, Pekka Kröger, Heikki Oja, Markku Poutanen, and Karl Johan Donner. "Spherical Astronomy." In Fundamental Astronomy, 9–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-05333-1_2.

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Karttunen, Hannu, Pekka Kröger, Heikki Oja, Markku Poutanen, and Karl Johan Donner. "Spherical Astronomy." In Fundamental Astronomy, 9–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-662-11794-1_2.

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Karttunen, Hannu, Pekka Kröger, Heikki Oja, Markku Poutanen, and Karl Johan Donner. "Spherical Astronomy." In Fundamental Astronomy, 11–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-53045-0_2.

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Karttunen, Hannu, Pekka Kröger, Heikki Oja, Markku Poutanen, and Karl Johan Donner. "Spherical Astronomy." In Fundamental Astronomy, 9–46. New York, NY: Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4612-3160-8_2.

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Karttunen, Hannu, Pekka Kröger, Heikki Oja, Markku Poutanen, and Karl Johan Donner. "Spherical Astronomy." In Fundamental Astronomy, 9–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-662-03215-2_2.

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Hanslmeier, Arnold. "Spherical Astronomy." In Introduction to Astronomy and Astrophysics, 5–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64637-3_2.

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Whittlesey, Marshall A. "Astronomy." In Spherical Geometry and Its Applications, 157–98. Boca Raton : CRC Press, Taylor & Francis Group, 2020.: Chapman and Hall/CRC, 2019. http://dx.doi.org/10.1201/9780429328800-5.

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Kleczek, J. "Spherical Triangles." In Exercises in Astronomy, 9–10. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3769-7_2.

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Gottwald, Michael. "Fundamentals of Spherical Astronomy." In Handbook of Practical Astronomy, 5–21. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-76379-6_2.

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Schmeidler, F. "Fundamentals of Spherical Astronomy." In Compendium of Practical Astronomy, 9–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-45688-6_2.

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Conference papers on the topic "Spherical astronomy"

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Pilarczyk, Rafal, and Władysław Skarbek. "Virtual reality for spherical images." In Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2017, edited by Ryszard S. Romaniuk and Maciej Linczuk. SPIE, 2017. http://dx.doi.org/10.1117/12.2281021.

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Mikuła, Marta, Tomasz Kozacki, Julianna Kostencka, Kamil Liżewski, and Michał Józwik. "On accuracy of holographic shape measurement method with spherical wave illumination." In Symposium on Photonics Applications in Astronomy, Communications, Industry and High-Energy Physics Experiments, edited by Ryszard S. Romaniuk. SPIE, 2014. http://dx.doi.org/10.1117/12.2075807.

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Vityazev, V. V., Manuel de León, D. M. de Diego, and R. M. Ros. "Scalar and Vector Spherical Functions: Solving the Problems of Astrometry and Stellar Kinematics." In MATHEMATICS AND ASTRONOMY: A JOINT LONG JOURNEY: Proceedings of the International Conference. AIP, 2010. http://dx.doi.org/10.1063/1.3506085.

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Okal, Paweł, Przemysław Rogalski, and Paweł Żukowski. "Visualization of the percolation phenomenon in two-dimensional arrangement of metallic spherical particles." In Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2017, edited by Ryszard S. Romaniuk and Maciej Linczuk. SPIE, 2017. http://dx.doi.org/10.1117/12.2280152.

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He, ShanHong, WenKai Li, XiaoJia Lu, Chen Zhu, and Chong Fan. "Predicting influence of the rest spherical surface on the instantaneous parabolic surface of multi-beam for radio astronomy." In 2018 IEEE MTT-S International Wireless Symposium (IWS). IEEE, 2018. http://dx.doi.org/10.1109/ieee-iws.2018.8400911.

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Liang, Xiaozhan, Yong Hu, and Xukun Shen. "“Embark the Journey · Embrace the Universe”: An Interactive System of Astronomy Education Based on Spherical TUI in MR." In SA '23: SIGGRAPH Asia 2023. New York, NY, USA: ACM, 2023. http://dx.doi.org/10.1145/3610549.3614609.

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Szałapak, J., K. Kiełbasiński, J. Krzemiński, and M. Jakubowska. "The impact of the proportion of nanoparticles to the spherical microparticles of silver on the connection parameters LTJT." In Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2017, edited by Ryszard S. Romaniuk and Maciej Linczuk. SPIE, 2017. http://dx.doi.org/10.1117/12.2280706.

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Avdeeva, A., D. Kovaleva, O. Malkov, and A. Nekrasov. "Determination of interstellar extinction parameters at high galactic latitudes." In ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021. Crossref, 2022. http://dx.doi.org/10.51194/vak2021.2022.1.1.179.

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The distribution of visual interstellar extinction A V has been mapped in selected areas over the Southern sky, using RAVEDR6 and Gaia EDR3 data. A V was modelled as a barometric function of galactic latitude and distance. The functionparameters were then approximated by spherical harmonics. The resulting analytical 3D model of the interstellar extinctioncan be used to predict A V values for stars with known parallaxes, as well as the total Galactic extinction in a given locationin the sky.
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Takacs, Peter Z., and Eugene L. Church. "Surface profiles and scatter from soft-x-ray optics." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.tuo1.

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The performance of soft-x-ray optics in synchrotron beam lines and for space astronomy use requires detailed knowledge of the topological properties of their surfaces. Instrumentation now exists for the measurement of surface profiles on spherical and aspherical surfaces up to one meter in length with subnanometer height resolution and submicroradian slope resolution. Analysis of surface profile data in terms of the power spectral density function over the entire range of spatial periods—from micrometers to meters—allows one to predict the performance of the component in a unified theoretical approach encompassing both the specular image and scattered light distribution. There is no longer any need for an artificial distinction between surface figure and surface finish. We will discuss numerous examples of actual surface profile measurements on grazing incidence and normal incidence optics, and we will relate them to measured performance at x-ray wavelengths where possible.
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Shamshiyev, F. T. "A special class of potentials admitting a local integral for rotating systems." In ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021. Crossref, 2022. http://dx.doi.org/10.51194/vak2021.2022.1.1.195.

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The search for qualitative regularities in the motion of bodies obeying Newton’s law has always been an important task incelestial mechanics. In stellar dynamics, the relevance of such searches remains, and they have become associated with awider class of possible potentials due to the variety of gravitational fields of the stars and galaxies encountered. A specialclass of potentials admitting a local integral is described in [1], which can be used to study the motion of stars in stellarsystems close to spherical symmetry. In the proposed article we will consider the same problem in the presence of rotation.The class of potentials are constructed.
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