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 vii
... nearly that of a sphere 2. Definition of the plane of the horizon , the plane of the meridian , a meridian line , its north and south points , a vertical line , the zenith and nadir , a vertical plane , the prime vertical , the east and ...
... nearly that of a sphere 2. Definition of the plane of the horizon , the plane of the meridian , a meridian line , its north and south points , a vertical line , the zenith and nadir , a vertical plane , the prime vertical , the east and ...
Page xxvi
... nearly , the same whether the earth be a spheroid or a sphere 414. ( Prop . III . ) To investigate the radius of curvature for a vertical section of a spheroid 415. ( Prop . IV . ) To investigate the ratio between the earth's axes from ...
... nearly , the same whether the earth be a spheroid or a sphere 414. ( Prop . III . ) To investigate the radius of curvature for a vertical section of a spheroid 415. ( Prop . IV . ) To investigate the ratio between the earth's axes from ...
Page 1
... nearly a circle ( that is , the solid whose section when cut any where by a plane is accurately or nearly a circle ) is ( Geom . 1. Prop . Cylind . ) accurately or nearly a sphere . The like inference may be drawn from the appearance ...
... nearly a circle ( that is , the solid whose section when cut any where by a plane is accurately or nearly a circle ) is ( Geom . 1. Prop . Cylind . ) accurately or nearly a sphere . The like inference may be drawn from the appearance ...
Page 2
... nearly parallel to his horizon . In the British Isles certain stars towards the north indicate by their movements that they describe during a day and a night the circumferences of circles whose planes are very oblique to the horizon and ...
... nearly parallel to his horizon . In the British Isles certain stars towards the north indicate by their movements that they describe during a day and a night the circumferences of circles whose planes are very oblique to the horizon and ...
Page 3
... nearly indicates the northern ex- tremity of the axis in the heavens , and an arc supposed to be traced through two bright stars ( y and a of the southern cross ) tends directly towards the opposite extremity . 5. The stars appearing to ...
... nearly indicates the northern ex- tremity of the axis in the heavens , and an arc supposed to be traced through two bright stars ( y and a of the southern cross ) tends directly towards the opposite extremity . 5. The stars appearing to ...
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Other editions - View all
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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