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 pages |
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Page viii
... circle defined . — A projected great circle intersects it in one of its diameters 25. ( Prop . I. ) Circles of the sphere , passing through the eye , are projected in straight lines 26. ( Prop . II . ) If a circle of the sphere be ...
... circle defined . — A projected great circle intersects it in one of its diameters 25. ( Prop . I. ) Circles of the sphere , passing through the eye , are projected in straight lines 26. ( Prop . II . ) If a circle of the sphere be ...
Page ix
... circle of the sphere , and the centre of the projection of the same circle , are in the representation of a great circle passing through the poles of the primitive and given circle - · - 32. ( Prop . VII . ) The radius of the circle ...
... circle of the sphere , and the centre of the projection of the same circle , are in the representation of a great circle passing through the poles of the primitive and given circle - · - 32. ( Prop . VII . ) The radius of the circle ...
Page xi
... circle to the corresponding arc on a great circle parallel to it ; and the converse 71. Two great circles making with each other a small angle at their line of section , and from a point in one of these an arc of a great circle being ...
... circle to the corresponding arc on a great circle parallel to it ; and the converse 71. Two great circles making with each other a small angle at their line of section , and from a point in one of these an arc of a great circle being ...
Page xii
... circle with respect to the meridian 99. Process for finding the polar point on the circle 100. Processes for finding the horizontal point - 101. Formula for obtaining the correction of a star's observed declination , when , at the time ...
... circle with respect to the meridian 99. Process for finding the polar point on the circle 100. Processes for finding the horizontal point - 101. Formula for obtaining the correction of a star's observed declination , when , at the time ...
Page xiii
... circle 126. Description of the repeating circle 96 8885890 127. Manner of using the instrument in observing altitudes or zenith distances 96 97 128. Manner of observing horizontal and oblique angles - 129. Hadley's reflecting octant ...
... circle 126. Description of the repeating circle 96 8885890 127. Manner of using the instrument in observing altitudes or zenith distances 96 97 128. Manner of observing horizontal and oblique angles - 129. Hadley's reflecting octant ...
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Practical Astronomy and Geodesy: Including the Projections of the ..., Volume 5 John Narrien No preview available - 2016 |
Common terms and phrases
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
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