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 7
... divided into twelve equal parts called signs , which bear the names of the zodiacal constellations before mentioned . They follow one another in the same order as those constel- lations , that is , from the west towards the cast ; and ...
... divided into twelve equal parts called signs , which bear the names of the zodiacal constellations before mentioned . They follow one another in the same order as those constel- lations , that is , from the west towards the cast ; and ...
Page 9
... divided into twelve equal parts called signs , which bear the names of the zodiacal constellations before mentioned . They follow one another in the same order as those constel- lations , that is , from the west towards the east ; and ...
... divided into twelve equal parts called signs , which bear the names of the zodiacal constellations before mentioned . They follow one another in the same order as those constel- lations , that is , from the west towards the east ; and ...
Page 56
... divided by ( s ) , in the last Proposition , there will be obtained after the necessary reductions COS . - ( B c ) cos . ( BC ) tan . — ( AB + AC ) = and tan . ( AB — AC ) sin . ( B 1 ―― = c ) tan . BC . .. ( 1 ) , tan . BC . . ( II ) ...
... divided by ( s ) , in the last Proposition , there will be obtained after the necessary reductions COS . - ( B c ) cos . ( BC ) tan . — ( AB + AC ) = and tan . ( AB — AC ) sin . ( B 1 ―― = c ) tan . BC . .. ( 1 ) , tan . BC . . ( II ) ...
Page 61
... divided into twenty - four equal parts , the hour- hand is made to indicate xxiv , or 0 hours at the instant that the first point of Aries is in the meridian ; and if the clock were duly adjusted , it is evident that the hour , minute ...
... divided into twenty - four equal parts , the hour- hand is made to indicate xxiv , or 0 hours at the instant that the first point of Aries is in the meridian ; and if the clock were duly adjusted , it is evident that the hour , minute ...
Page 62
... divided by the number of revolutions , will give the value of an angle subtended at the eye by the positions of the micro- meter wire at the commencement and end of one revolution of the screw : and as one revolution of a screw carries ...
... divided by the number of revolutions , will give the value of an angle subtended at the eye by the positions of the micro- meter wire at the commencement and end of one revolution of the screw : and as one revolution of a screw carries ...
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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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