Practical Astronomy and Geodesy: Including the Projections of the Sphere and Spherical Trigonometry. For the Use of the Royal Military CollegeLongman, Brown, Green, and Longmans, 1845 - 427 Seiten |
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Seite vi
... evident that faci- lities are afforded and repetitions avoided by comprehending the tract in a work for which it is immediately required . There is given a description of the principal instruments employed in making observations ; and ...
... evident that faci- lities are afforded and repetitions avoided by comprehending the tract in a work for which it is immediately required . There is given a description of the principal instruments employed in making observations ; and ...
Seite 14
... evident that the centre of the latter is the point in which the pole opposite to the pro- jecting point is projected . Cor . 2. Since every two great circles of the sphere intersect one another in a diameter of the sphere , it follows ...
... evident that the centre of the latter is the point in which the pole opposite to the pro- jecting point is projected . Cor . 2. Since every two great circles of the sphere intersect one another in a diameter of the sphere , it follows ...
Seite 16
... the surface of the sphere , & c . Scholium . If the plane of a circle of the sphere were parallel to the plane of projection , it is evident , whether E be on the surface of the sphere , or within it 16 CHAP . II . PROJECTIONS.
... the surface of the sphere , & c . Scholium . If the plane of a circle of the sphere were parallel to the plane of projection , it is evident , whether E be on the surface of the sphere , or within it 16 CHAP . II . PROJECTIONS.
Seite 40
... evident , since radius and the length of the equatorial degree are constant , that , on the projection , the distance of any parallel of latitude from the equator may be denoted approximatively by the sum of the secants of all the ...
... evident , since radius and the length of the equatorial degree are constant , that , on the projection , the distance of any parallel of latitude from the equator may be denoted approximatively by the sum of the secants of all the ...
Seite 45
... evident that the sum of the angles of a spherical triangle of given magnitude approaches nearer to equality to two right angles as the radius of the sphere increases . PROPOSITION I. 60. To express one of the angles of a spherical ...
... evident that the sum of the angles of a spherical triangle of given magnitude approaches nearer to equality to two right angles as the radius of the sphere increases . PROPOSITION I. 60. To express one of the angles of a spherical ...
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Practical Astronomy and Geodesy: Including the Projections of the ..., Band 5 John Narrien Keine Leseprobe verfügbar - 2016 |
Häufige Begriffe und Wortgruppen
angular distance apparent ascension and declination astronomical azimuth bisected celestial body celestial sphere centre circle passing circumference colatitude computed considered correction corresponding cosine cotan degrees described determined diameter difference earth ecliptic ellipse equal equator equatorial equinoctial point expressed fixed star formula geocentric given graduation Greenwich Greenwich mean horary motions horizontal parallax hour angle index error instant instrument interval latitude latter let fall limb longitude mean noon meridian micrometer moon moon's Nautical Almanac node observed altitude obtained optical axis orbit parallax parallel perihelion perpendicular plane passing polar distance pole position projection radius refraction represented revolution revolve right angles right ascension satellite screw sector semidiameter side sidereal sidereal clock sine sphere spherical triangle star's station subtended subtracted supposed surface tangent transit telescope true variation vertical wire zenith distance zero
Beliebte Passagen
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