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The Complete Nautical Astronomer

By: Charles H. Cotter
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Celestial sphere

Encyclopedia Article

...The Earth rotating within a relatively small-diameter Earth-centered celestial sphere. Depicted here are stars (white), the ecliptic (red), and ... ...Earth rotating within a relatively small-diameter Earth-centered celestial sphere. Depicted here are stars (white), the ecliptic (red), and lines of r... ...tem. In astronomy and navigation, the celestial sphere is an imaginary sphere of arbitrarily large radius, concen... ... In astronomy and navigation, the celestial sphere is an imaginary sphere of arbitrarily large radius, concentric with ... ...imaginary sphere of arbitrarily large radius, concentric with a particular celestial body. All objects in the observer's sky can be thought of as proj... ...server's sky can be thought of as projected upon the inside surface of the celestial sphere, as if it were the underside of a dome or a hemispherical ... ...ky can be thought of as projected upon the inside surface of the celestial sphere, as if it were the underside of a dome or a hemispherical screen. Th... ...here, as if it were the underside of a dome or a hemispherical screen. The celestial sphere is a practical tool for spherical astronomy, allowing obse... ...f it were the underside of a dome or a hemispherical screen. The celestial sphere is a practical tool for spherical astronomy, allowing observers to p...

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Biblioteca Hispanica : Treaty Celestial Sphere and Its Application to Terrestrial Globe

By: Arroyo Pino

Description: Celestial sphere

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Celestial

Encyclopedia Article

...Celestial may refer to: Celestial bodies Angels and seraphs of Heaven ... ... Astronomical objects, see for detailed description of celestial bodies and objects Celestia,... ... users to travel through the universe Celestial coordinate system, a system for mapping positions on the celestia... ...lestial coordinate system, a system for mapping positions on the celestial sphere Celestial mechanics, the branch... ...ing positions on the celestial sphere Celestial mechanics, the branch of astronomy that deals with the motions of... ...elestial mechanics, the branch of astronomy that deals with the motions of celestial objects Celestial navigation... ...ps sailors cross the oceans Celestial sphere, an imaginary sphere concentric with the Earth – all objects in... ...– all objects in the sky can be thought of as projected upon the celestial sphere Celestial spheres, fundamental ...

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Biblioteca Hispanica : Celestial Sphere Description and Instruction for Using the Sky Map

By: Tirado Antonio Torres

Description: Celestial sphere

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Sublunary sphere

Encyclopedia Article

...ephen Toulmin, Night Sky at Rhodes (1963) p. 38 and p. 78 The sublunary sphere was the realm of changing nature. Beginning with the Moon, up to the... ...aether where the planets and star s are located. Only in the sublunary sphere did the powers of physics hold sway.C. C. Gillespie, The Edge of Ob... ...to and Aristotle helped to formulate the original theory of a sublunary sphere in antiquityGillespie, p. 13-5 - the idea usually going hand in hand... ...stotelian idea of generation and corruption being limited to the sublunary sphere.J. J. E. Garcia, Individuation in Scholasticism (1994) p. 41 Medi... ...eval scholastics like Thomas Aquinas - who charted the division between celestial and sublunary spheres in his work Summa Theologica - also drew ... ...Thomas Aquinas - who charted the division between celestial and sublunary spheres in his work Summa Theologica - also drew on Cicero and Lucan ...

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Biblioteca Digital Hispanica : Speech Balloon Light Seen on the Celestial Sphere

By: Diego Torres Villarroel
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Celestial pole

Encyclopedia Article

... Diagram of the path of the celestial north pole around the ecliptic north pole. The beginning of the f... ...d 3rd millennium. The north and south celestial poles are the two imaginary points in the sky where the Earth's a... ... where the Earth's axis of rotation, indefinitely extended, intersects the celestial sphere. The north and south celestial poles appear permanently di... ... Earth's axis of rotation, indefinitely extended, intersects the celestial sphere. The north and south celestial poles appear permanently directly ove... ... Pole and South Pole respectively. As the Earth spins on its axis, the two celestial poles remain fixed in the sky, and all other points appear to rot... ...g one circuit per day (strictly per sidereal day). The celestial poles are also the poles of the celestial equatorial coordinate s... ... precession of the equinoxes, the poles trace out circles on the celestial sphere, with a period of about 25,700 years. The Earth's axis is also subje... ...e the projection of the planet's axis of rotation intersects the celestial sphere. These points vary because different planets' axes are oriented diff... ... pole. See also Celestial sphere Celestial equator ...

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Record of Fallen Vampire 36: the Celestial Sphere of Feathers: The Record of Fallen Vampire, Vampire Juuji Kai, Vampire Juujikai, Vampire Cross-world

By: Shirodaira Kyou
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Celestial ocean

Encyclopedia Article

...Several mythologies have the notion of a celestial ocean or river, enveloping the world both above the heavenly sphe... ...f a celestial ocean or river, enveloping the world both above the heavenly sphere and below the underworld. See also ...

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Parere di Hercole Mariscotti patricio bolognese : se i concetti favolosi si debbano ammettere ne i corpi dell'imprese : problemma proposto nell' Academia de' Gelati all'istessa illustrissima Academia

By: Marescotti, Ercole, D. 1621; Accademia Dei Gelati (Bologna, Italy)

...Supplemental catalog subcollection information: American Libraries Collection; American University Library Collection; T.p. engraving of the celestial sphere, incorporating Marescotti's coat of arms. It is repeated on K4r with emblematic explanation. Wood...

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Celestial navigation

Encyclopedia Article

...A sextant Celestial navigation, also known as astronavigation, is the ancient art and... ...rely on estimated calculations, or dead reckoning, to know their position. Celestial navigation uses "sights," or angular measurements taken between a... ...elestial navigation uses "sights," or angular measurements taken between a celestial body (the sun, the moon, a planet or a star) and the visible hori... ...re tabulated in the Nautical Almanac and Air Almanacs. Celestial navigation is the use of angular measurements (sights) between ce... ...e's position on the globe, on land as well as at sea. At a given time, any celestial body is located directly over one point on the Earth's surface. T... ...sed systems which can locate the aircraft's position accurate to a 3-meter sphere with several updates per second. Celestial navig...

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An improved battery state-of-charge indicator

By: Calvert, R. T
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Armillary sphere

Encyclopedia Article

...erical astrolabe, armilla, or armil) is a model of objects in the sky (in the celestial sphere ), consisting of a spherical framework of rings, centr... ...rolabe, armilla, or armil) is a model of objects in the sky (in the celestial sphere ), consisting of a spherical framework of rings, centred on Eart... ...g of a spherical framework of rings, centred on Earth, that represent lines of celestial longitude and latitude and other astronomically important fea... ...mically important features such as the ecliptic . As such, it differs from a celestial globe, which is a smooth sphere whose principal purpose is to... ...the ecliptic . As such, it differs from a celestial globe, which is a smooth sphere whose principal purpose is to map the constellations. Descript... ...l purpose is to map the constellations. Description and use of the armillary sphere This section refers to labels in the diagram below. The exte... ...xtends from the north and south poles of the globe at n and s, to those of the celestial sphere at N and S. On this axis is fixed the flat celestial m... ...m the north and south poles of the globe at n and s, to those of the celestial sphere at N and S. On this axis is fixed the flat celestial meridian L ... ...ithin this ring, so as to place any given meridian upon it, directly under the celestial meridian L. The horizon is divided into 360 degrees all aroun...

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The Microwave Anisotropy Probe (Map) Mission

By: Ward, David K.

...Description: The Microwave Anisotropy Probe mission is designed to produce a map of the cosmic microwave background radiation over the entire celestial sphere by executing a fast spin and a slow precession of its spin axis about the Sun line to obtain a highly interconnected set of measurements. The spacecraft attitude is sensed and controlled using an Inertial Ref...

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Lie sphere geometry

Encyclopedia Article

...Sophus Lie, the originator of Lie sphere geometry and the line-sphere correspondence. ... ...d the line-sphere correspondence. Lie sphere geometry is a geometrical theory of planar or spatial geometry in wh... ...anar or spatial geometry in which the fundamental concept is the circle or sphere. It was introduced by Sophus Lie in the nineteenth century.[1] The m... ... Sophus Lie in the nineteenth century.[1] The main idea which leads to Lie sphere geometry is that lines (or planes) should be regarded as circles (or... ...phere geometry is that lines (or planes) should be regarded as circles (or spheres) of infinite radius and that points in the plane (or space) should ... ...e to (1,0,0,0,0), intersected with the Lie quadric, is the two dimensional celestial sphere S in Minkowski space-time. This is the Euclidean plane wit... ...gh infinity) in the Euclidean plane. This is easier to see in terms of the celestial sphere S: the circle corresponding to [λ(1,0,0,0,0) + v] ∈ Q (wit... ...e to (1,0,0,0,0), intersected with the Lie quadric, is the two dimensional celestial sphere S in Minkowski space-time. This is the Euclidean plane wit... ...gh infinity) in the Euclidean plane. This is easier to see in terms of the celestial sphere S: the circle corresponding to [λ(1,0,0,0,0) + v] ∈ Q (wit...

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Survey of Astronomy Lecture Notes

By: J. Bennett; M. Donahue

...iption: This note covers the following topics: Structure of the Universe, Copernicus, Brahe, Galileo, and Kepler, Newtonian Dynamics and Gravitation, Celestial Sphere, Motions of the Moon and Eclipses, Objects and Events in the Heavens, Thermal Radiation and Spectroscopy, Telescopes in Astronomy, Origin of Our Solar System, Solar Energy, Solar Activity and Sun-Earth Connec...

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Celestial spheres

Encyclopedia Article

... The celestial spheres, or celestial orbs, were the fundamental entities of the cosmological model... ... by Plato, Eudoxus, Aristotle, Ptolemy, Copernicus and others. In these celestial models the apparent motions of the fixed stars and the pla... ... and the planets are accounted for by treating them as embedded in rotating spheres made of an aetherial, transparent fifth element ( quintessence ... ...one another, it was argued that they must be on the surface of a single starry sphere.Grant, Planets, Stars, and Orbs, p. 440. In modern thought, the... ...ugh mostly empty space. Ancient and medieval thinkers, however, considered the celestial orbs to be thick spheres of rarefied matter nested one within... ...ient and medieval thinkers, however, considered the celestial orbs to be thick spheres of rarefied matter nested one within the other, each one in com... ...fied matter nested one within the other, each one in complete contact with the sphere above it and the sphere below.Lindberg, Beginnings of Western Sc... ...option of Copernicus's heliocentric model of the universe, new versions of the celestial sphere model were introduced, with the planetary spheres foll... ...istory Early ideas of spheres and circles In Greek antiquity the ideas of celestial spheres and rings first appeared in the cosmology of Anaxima...

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Gravity Probe B Project

By: Goebel, J

...ng gyroscopes. The guide-star telescope rotates about a central axis, thereby providing a constant pointed reference direction to a star fixed on the celestial sphere; this is the distant inertial reference frame. The satellite that contains this assembly will be in a polar orbit about Earth. The precession rate of the sensed gyroscope directional output from the distant i...

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Sphere of influence (astrodynamics)

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Appendix to the Congressional Globe for the First Session, Twenty-Ninth Congress : Containing Speeches and Important State Papers

... its being, amidst the corrupiions of the great cities; in the pure alnio- sphere of the country, it could not live. Who ever heard nf a Native Americ... ...g wandering from the faith, niny rc- 1 turii,niid catch n new spark of the celestial fires of modem Democracy—as comets, nfter a wide, ec- centric swe... ...onstrate her powers of exten- sion, by the corresponding diminution of the spheres of the systems that revolve in conliguous •^pace, and whose politic... ...rtments. It will find enough to occupy its attention in its own legitimate sphere ofaction. Thepower to dissolve the convention with Great Britain is ... ...ttle dmibl tlial the western contineiit would soon be fcniiid too narrow a sphere for otii ccmi|uesls. I'm Willi this brilliant prospect before lis, w... ...le worlil. lier language, hir laws, her military pniwc'ss, fill both hemi- spheres, while she has belted the globe with her fortresses, to say nothing... ... the En'ipei'or of the Cclesiial City i [.Mr. C. J. I.vrtitiisoi.i.. '1 he Celestial Km|iire.] Mr. Maui IS-. Well, the Kmperor of the Celes- tial F.mp... ...lation hoiiij, the eondilion of (axaliuii tliiin tlie inliahitaiiis of the Celestial Kniniic, VVe are loo prone, sir, to as- crihu American feelings t... ... laliors of llie plough. The (Jhinese will bring the silks and leas of the celestial empire; the Hindoo the muslins of Dacca; the swarthy Arab the eol...

...Each lecture has separate title page and pagination ; [v. 1] The celestial sphere and the doctrine of the Earth's perpendicular axis.--[v. 2] Parallax and aberration of light.--[v. 3] Theories of light based on astronomical observation.--[v. 4] Cometary orbits in relation to the law of gra...

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Celestial cartography

Encyclopedia Article

...latum Christianum by Julius Schiller. Celestial cartography,[1] uranography[2][3] or star cartography is the frin... ...cerned with mapping stars, galaxies, and other astronomical objects on the celestial sphere. Measuring the position and light of charted objects requi... ...h mapping stars, galaxies, and other astronomical objects on the celestial sphere. Measuring the position and light of charted objects requires a vari... .... In Renaissance times, Uranographia was used as the book title of various celestial atlases.[4][5][6] During the 19th century, "uranography" was defi... ...tars[11] Star Walk and Kepler Explorer OpenLab: 2 celestial cartography apps for smartphones Free ... ... ^ Warner, D. J. (1979). The Sky Explored: Celestial Cartography 1500–1800. Amsterdam and New York: Theatrum Orbis Ter... ...h mapping stars, galaxies, and other astronomical objects on the celestial sphere. Measuring the position and light of charted objects requires a vari...

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Parere Di Hercole Mariscotti Patricio Bolognese : Se I Concetti Favolosi Si Debbano Ammettere Ne I Corpi Dell'Imprese : Problemma Proposto Nell' Academia De' Gelati All'Istessa Illustrissima Academia

By: Marescotti, Ercole, D. 1621; Accademia Dei Gelati (Bologna, Italy)

...T.p. engraving of the celestial sphere, incorporating Marescotti's coat of arms. It is repeated on K4r with emblematic explanation. Woodcut initials, head- and tail-pieces; Includes errata, L3v; Binding: old limp vellum. Title written on spine; Si...

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Celestial coordinate system

Encyclopedia Article

...ow), ecliptic (red) and equatorial (blue) coordinates, as projected on the celestial sphere. Ecliptic and equatorial coordinates share the vernal equi... ...tic (red) and equatorial (blue) coordinates, as projected on the celestial sphere. Ecliptic and equatorial coordinates share the vernal equinox (magen... ...he galactic center (yellow). The origin of coordinates (the "center of the sphere") is ambiguous; see celestial sphere for more information. ... .... The origin of coordinates (the "center of the sphere") is ambiguous; see celestial sphere for more information. ... ...ormation. In astronomy, a celestial coordinate system is a system for specifying positions of celesti... ...ition in 3-dimensional space, or merely the direction of the object on the celestial sphere, if its distance is not known or not important. ... ...-dimensional space, or merely the direction of the object on the celestial sphere, if its distance is not known or not important. ... ...inates or rectangular coordinates. Spherical coordinates, projected on the celestial sphere, are analogous to the geographic coordinate system used on... ...rectangular coordinates. Spherical coordinates, projected on the celestial sphere, are analogous to the geographic coordinate system used on the surfa...

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The Sporadic Radiant and Distribution of Meteors in the Atmosphere as Observed by Vhf Radar at Arctic, Antarctic and Equatorial Latitudes : Volume 27, Issue 7 (15/07/2009)

By: N. J. Mitchell; I. Astin; D. J. Sandford; P. T. Younger

... count data from all the radars are combined to investigate the sporadic radiant distribution (i.e. the distribution of direction of arrival on the celestial sphere of sporadic meteors). This combined radiant distribution shows that there are six main source regions for meteors. The latitudinal and temporal dependence in observed meteor count rates appears to result f...

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Celestial equator

Encyclopedia Article

... The celestial equator is a great circle on the imaginary celestial sphere, in the same plane as the Earth 's equator . In oth... ... The celestial equator is a great circle on the imaginary celestial sphere, in the same plane as the Earth 's equator . In other words, ... ...rrestrial equator out into space. As a result of the Earth's axial tilt, the celestial equator is inclined by 23.4° with respect to the ecliptic pl... ...ecliptic plane . An observer standing on the Earth's equator visualizes the celestial equator as a semicircle passing directly overhead through t... ...tly overhead through the zenith . As the observer moves north (or south), the celestial equator tilts towards the opposite horizon. The celestial equ... ... The celestial equator is defined to be infinitely distant (since it is on the celestial sphere); thus the observer always sees the ends of the semici... ...tial equator is defined to be infinitely distant (since it is on the celestial sphere); thus the observer always sees the ends of the semicircle disap...

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Bright Celestials : The Chinaman at Home and Abroad

By: Lamont, Archibald

...assic Literature Collection World Public Library.org Title: BRIGHT CELESTIALS Author: JOHN COMING CHINAMAN Language: English Subject: Fiction... ...... ...RE 1894 VV '-$m L- 23 vl ^st /. tr, v V t-&L~ (i *Ue{_j PREFACE. 'Bright Celestials' is a story of Chinese life at Home and Abroad in relation to Ch... ...literary advice and aid in preparing the manuscript for the press. 'Bright Celestials' is intended as a tribute to the claims of Old and New China on ... ... HOMEWARD BOUND ... . 274 XXII. THE OLD AND NEW COVENANT . . . 284 BRIGHT CELESTIALS. CHAPTEE I. BLACK KOCK. The China Sea—the sea of sickness and ty... ...er gifts than myself.' ' I pray that you may have much success in your new sphere. Mr Kichmond told me that you are to get married at an early date.' ... ...he study of English in Deli and Dutch Borneo. In hisnew and more congenial sphere his English grew from day to day. Scholar Wu had as yet learnt no En... ...s perdition. Then it was that she was rescued and made a prisoner in a new sphere—the house of refuge, vigilantly circumscribed by the atten- tions of... ...DES: The Story of the Latin Kingdom of Jerusalem. Revised and enlarged TWO SPHERES ; Or, Mind v. Instinct. By " T. E. S. T. throughout. Demy 8vo, clot...

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Dynamics of the celestial spheres

Encyclopedia Article

... Fourteenth-century drawing of angels turning the celestial spheres ... ... Fourteenth-century drawing of angels turning the celestial spheres ... ... Ancient, medieval and Renaissance astronomers and philosophers developed many different theories about the dynamics of the celestial spheres. The... ...nt, medieval and Renaissance astronomers and philosophers developed many different theories about the dynamics of the celestial spheres. They explaine... ... explained the motions of the various nested spheres in terms of the materials of which they were made, external movers such as celestial intelligence... ...e force and resistance. Contents 1 The celestial material and... ... 1 The celestial material and its natural motions 2 The causes of celestial motion ... ... The celestial material and its natural motions In considering the physics of the celestial spheres, scholars foll... ...ing the physics of the celestial spheres, scholars followed two different views about the material composition of the celestial spheres. For Plato, th...

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Johnston's Handbook to the Celestial Globe

By: W. & A. K. Johnston Limited

... Classic Literature Collection World Public Library.org TO THE CELESTIAL GLOBE Title: JOHNSTON'S HANDBOOK TO THE CELESTIAL GLOBE Au... ...... ...g INTRODUCTION. This Handbook is specially intended to accompany Johnston's Celestial Globes. The Celestial Globe does not represent the true movemen... ...study the diurnal pheno- mena. Professor Young states that "the study of the celestial sphere and its circles is greatly aided by the use of a globe o... ...diurnal pheno- mena. Professor Young states that "the study of the celestial sphere and its circles is greatly aided by the use of a globe or armillar... ...gine the Globe trans- parent, and the eye placed at the centre of the hollow sphere upon which are drawn the circles and a map of the stars : then wil... ...he meridian, and sink in the west, exactly in a similar A'Kll 2 HANDBOOK TO CELESTIAL GLOBE. manner as we see them do in the Heavens. In the hands of... ...tial Globe is a ball on which are drawn a number of circles of the celestial sphere, and also a map representing the stars in their true positions as ... ...epresenting the stars in their true positions as seen from the centre of the sphere. The globe is mounted in a framework which represents the horizon ...

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Barycentric celestial reference system

Encyclopedia Article

... in the Milky Way galaxy, and extra-galactic objects. The Geocentric Celestial Reference System (GCRS), also created by the IAU in... ... The orientation of the BCRS coordinate system coincides with that of the International Celestial Reference System (ICRS). Both are centered at the b... ...t" in the same direction. That is, their axes are aligned with that of the International Celestial Reference Frame (ICRF), which was adopted as a stan... ... to define what "direction" means in space, by fixing its orientation in relation to the Celestial sphere, that is, to deep-space background. Speaking... ... what "direction" means in space, by fixing its orientation in relation to the Celestial sphere, that is, to deep-space background. Speaking casually,... ...it radio wavelengths, which are less subject than other wavelengths to being obscured by celestial gas in front of them. The ICRF adopts coordinates f...

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Bright Celestials; The Chinaman at Home and Abroad

By: Lamont, Archibald

... T. FISHER UNW'IN PATERNOSTER SQUARE 1894 •••,• •**,'. PREFACE. * Bkight Celestials ' is a story of Chinese life at Home and Abroad in relation to C... ...iterary advice and aid in preparing the manuscript for the press. * Bright Celestials ' is intended as a tribute to the claims of Old and New China on... ...ITY 254 XXI. HOMEWARD BOUND 274 XXII. THE OLD AND NEW COVENANT 284 BRIGHT CELESTIALS. CHAPTER I. BLACK EOCK. The China Sea—the sea of sickness and ty... ...f dashing foam, and lend protection to the creeks and bays in which Fokien Celestials prosecute their calling as fishermen. The Fokiens are the ploddi... ... reader's eye must turn mean- while, for here begins our tale. A 2 BRIGHT CELESTIALS. It is a low-roofed house — none of your perpen- dicular tenemen... ...er gifts than myself,' ' I pray that you may have much success in your new sphere. Mr Kichmond told me that you are to get married at an early date.' ... ...he study of English in Deli and Dutch Borneo. In hisnew and more congenial sphere his English grew from day to day. Scholar Wu had as yet learnt no En... ...s perdition. Then it was that she was rescued and made a prisoner in a new sphere—the house of refuge, vigilantly circumscribed by the atten- tions of...

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Mage: The Ascension

Encyclopedia Article

... Time 5.9 The tenth sphere 5.10 Sphere sigils 5.11 ... ...es to describe the areas of magic in which his character is proficient—the Spheres, look, mean, and are understood vary depending on the paradigm of t... ...ole. The nine traditions are: the Akashic Brotherhood, Celestial Chorus, Cult of Ecstasy, Dreamspeakers, Euthanatos, Order of Herm... ...Taoism, Shinto, Hinduism and other such religions. They are masters of the sphere of Mind. Mages of Celestial Chorus are piou... ... They are masters of the sphere of Mind. Mages of Celestial Chorus are pious believers in a supreme being that encompasses al... ...e being that encompasses all Gods ever worshipped. They are masters of the sphere of Prime, the raw essence that fuels magic itself. ... ...onsciousness-expanding techniques, and meditation. They are masters of the sphere of Time. Mages of Dreamspeakers are shamani...

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Professor Montgomery's Discoveries in Celestial Mechanics

By: Redman, Leander A

... Classic Literature Collection World Public Library.org DISCOVERIES IN CELESTIAL MECHANICS Title: PROFESSOR MONTGOMERY'S DISCOVERIES IN CELES... ...... ... of a mechanical device a sort of orrery he physically demon- strated that spheres having a retrograde rotation being in unstable equilibrium, will ne... ...hing is that no one seems to have perceived that there are no "couples" in celestial mechanics. Bodies in space caused to rotate by attraction do not ... ... of applying to a spheroid with tides, principles applicable only to rigid spheres. He impliedly denied precessional motion. He said that a planet wo... .... The same thing is true with respect to any body except a perfect (ideal) sphere. An iron bar rotating in space will finally point one end towards th... ...But Professor Moulton 's remarks apply only to the case of a rigid perfect sphere. If such a sphere be rotating around the Z axis and an attempt be ma... ...ound either, but around a new axis. The axis of rotation will shift in the sphere. But this it not true of a spheroid. In such case if the rotation be...

Montgomery, John J ; Celestial mechanics

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Colure

Encyclopedia Article

... Colure, in astronomy, is either of the two principal meridians of the celestial sphere. Contents ... ...e, in astronomy, is either of the two principal meridians of the celestial sphere. Contents ... ... The equinoctial colure is the meridian or great circle of the celestial sphere which passes through the celestial poles and the two equin... ... The equinoctial colure is the meridian or great circle of the celestial sphere which passes through the celestial poles and the two equinoxes: the ... ... The solstitial colure is the meridian or great circle of the celestial sphere which passes through the poles and the two solstices: the ... ... The solstitial colure is the meridian or great circle of the celestial sphere which passes through the poles and the two solstices: the first poin... ...nt of Capricorn. See also Celestial coordinate system Ecliptic ... ...ordinate system Ecliptic Celestial sphere Right ascension ... ...ystem Ecliptic Celestial sphere Right ascension Eq...

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Practical Astronomy for Engineers

By: Seares, Frederick Hanley, 1873

..., UNIVERSITY OF MISSOURI, June, 1909. CONTENTS CHAPTER I , , INTRODUCTION CELESTIAL SPHERE COORDINATES PAGE. 1 . The results of astronomical investig... ...TY OF MISSOURI, June, 1909. CONTENTS CHAPTER I , , INTRODUCTION CELESTIAL SPHERE COORDINATES PAGE. 1 . The results of astronomical investigations -' ... ...ERRATA J32 INDEX PRACTICAL ASTRONOMY FOR ENGINEERS CHAPTER I INTRODUCTION CELESTIAL SPHERE COORDINATES. 1. The results of astronomical investigations... ... INDEX PRACTICAL ASTRONOMY FOR ENGINEERS CHAPTER I INTRODUCTION CELESTIAL SPHERE COORDINATES. 1. The results of astronomical investigations. The inve... ...he following illustration : Let the various bodies be represented by small spheres whose diameters and mutual distances exhibit the relative dimension... ...ns more readily comprehensible let the scale be fixed by assuming that the sphere representing the sun is two feet in diameter. The corresponding diam... ...he only theory thus far formu- lated which satisfactorily accounts for the celestial phenomena in their more intricate relations, there is another con... ...immediately suggested by the most casual examination of the motions of the celestial bodies, we shall now turn to a consideration of these motions and... ...above. The surface to which the light-points seem at- tached is called the Celestial Sphere. Its radius is indefinitely great. Its period of rotation ...

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Ancient Greek astronomy

Encyclopedia Article

...nt Greek astronomy Antikythera mechanism Armillary sphere Astrolabe Astronomical rings ... ... C Callippic cycle Celestial Matters Celestial Sphere Woodrow Wilson Memorial ... ... Callippic cycle Celestial Matters Celestial Sphere Woodrow Wilson Memorial Celestial spheres Co... ...l Matters Celestial Sphere Woodrow Wilson Memorial Celestial spheres Concentric spheres ... ...odrow Wilson Memorial Celestial spheres Concentric spheres C cont. ... ... Deferent and epicycle Dioptra Dynamics of the celestial spheres E Equant ... ...ent and epicycle Dioptra Dynamics of the celestial spheres E Equant Eq... ... C Callippic cycle Celestial Matters Celestial Sphere Woodrow Wilson Memorial ... ...l Matters Celestial Sphere Woodrow Wilson Memorial Celestial spheres Concentric spheres ...

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Practical Astronomy for Engineers

By: Seares, Frederick Hanley, 1873

...TORY, UNIVERSITY OF MISSOURI, June, 1909. CONTENTS CHAPTER I INTRODUCTION CELESTIAL SPHERECOORDINATES PAGE. 1 . The results of astronomical investiga... ...ERSITY OF MISSOURI, June, 1909. CONTENTS CHAPTER I INTRODUCTION CELESTIAL SPHERECOORDINATES PAGE. 1 . The results of astronomical investigations '. 1... ...TA 132 INDEX 133 PRACTICAL ASTRONOMY FOR ENGINEERS CHAPTER I INTRODUCTION CELESTIAL SPHERE COORDINATES. 1. The results of astronomical investigations... ...EX 133 PRACTICAL ASTRONOMY FOR ENGINEERS CHAPTER I INTRODUCTION CELESTIAL SPHERE COORDINATES. 1. The results of astronomical investigations. The inve... ...e following- illustration : Let the various bodies be represented by small spheres whose diameters and mutual distances exhibit the relative dimension... ...ns more readily comprehensible let the scale be fixed by assuming that the sphere representing the sun is two feet in diameter. The corresponding diam... ...he only theory thus far formu- lated which satisfactorily accounts^for the celestial phenomena in their more intricate relations, there is another con... ...mmediately suggested b}' the most casual examination of the motions of the celestial bodies, we shall now turn to a consideration of these motions and... ...above. The surface to which the light-points seem at- tached is called the Celestial Sphere. Its radius is indefinitely great. Its period of rotation ...

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Spherical astronomy

Encyclopedia Article

...pherical astronomy is the branch of astronomy that is concerned with where celestial objects are located and how they move on the celestial sphere. It... ...ith where celestial objects are located and how they move on the celestial sphere. It is one of the oldest fields of the astronomical science. ... ... Celestial coordinate system ... ... Antisolar point C Celestial sphere Circumpolar constellation Circumpo... ... Antisolar point C Celestial sphere Circumpolar constellation Circumpolar star ... ...pherical astronomy is the branch of astronomy that is concerned with where celestial objects are located and how they move on the celestial sphere. It... ...ith where celestial objects are located and how they move on the celestial sphere. It is one of the oldest fields of the astronomical science. ... ... Celestial coordinate system ... ... Antisolar point C Celestial sphere Circumpolar constellation Circumpolar star ...

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A Treatise on Astronomy : Theoretical and Practical : Part I-[Ii], Vol. 1 : Vol. 1

By: Woodhouse, Robert, 1773-1827

... and which continually change their places. The Sun and Moon also, the two celestial objects of the greatest interest, are from day to day changing th... ..., in fact, is to suppose these circles to be the great circles of the same sphere. The meridian intersects (see 1.2.) the horizon in 5and Nthe South a... ... may be explained by supposing the concave Heavens, in form like an hollow sphere, to revolve round an axis passing through the pole and the centre of... ... scheme, is intended to shew, that the hypothesis of the revolution of the sphere of the Heavens round an axis passing through the poles, will adequat... ...kQ (which is the measure of the angle subtended by kQ at the centre of the sphere); the declination of a star whose parallel is mn, ismQ or nE: of the... ...he Poles and the Equator, that have hitherto been described, belong to the celestial sphere ; but the Earth also has its Equator, Poles and Axis. Conc... ... terminated by its surface. Or, we may reverse the process and give to the Celestial Sphere its Equator and Axis, by extending to the Heavens the Eart... ... arc of the meridian inter- cepted between the zenith of the place and the celestial Equator, or, which is the same thing, it is the complement of the... ... and his annual course would be amongst those fixed stars which lie in the celestial equator. But we have seen (pp. 15, &c.) that this is not the case...

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