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 xxiii
... computed latitude in this problem · 300 303 - 304 357. Methods of determining the latitude by two altitudes of a celestial body with the interval in azimuth ; and by simul- taneous altitudes of two fixed stars - 358. ( Prob . IX . ) To ...
... computed latitude in this problem · 300 303 - 304 357. Methods of determining the latitude by two altitudes of a celestial body with the interval in azimuth ; and by simul- taneous altitudes of two fixed stars - 358. ( Prob . IX . ) To ...
Page xxvi
... computed portions of the meridian to the surfaces of the different plane triangles ; and outline of the process for determining a meridional arc by com- puting the intervals between the perpendiculars let fall on it from the stations ...
... computed portions of the meridian to the surfaces of the different plane triangles ; and outline of the process for determining a meridional arc by com- puting the intervals between the perpendiculars let fall on it from the stations ...
Page xxvii
... computed heights of mountains , on account of the earth's curvature 399 428. The height of the mercury in a barometer applicable to the determination of the heights of mountains - 429. Law of the densities of the atmosphere in a series ...
... computed heights of mountains , on account of the earth's curvature 399 428. The height of the mercury in a barometer applicable to the determination of the heights of mountains - 429. Law of the densities of the atmosphere in a series ...
Page 7
... known , the angles Aam , вbn may be computed . But B 4 СНАР . І. 7 MAGNITUDE OF THE EARTH . The orbits of the earth and moon are differently inclined a plane which is perpendicular to the axis of the earth's rotation Page.
... known , the angles Aam , вbn may be computed . But B 4 СНАР . І. 7 MAGNITUDE OF THE EARTH . The orbits of the earth and moon are differently inclined a plane which is perpendicular to the axis of the earth's rotation Page.
Page 8
... computed . But c representing the centre of the earth , if Ec be drawn parallel to sa or sb , the angles ACE , BCE will be respectively equal to Aam , Bbn ; therefore the difference between these last angles is equal to the angle ACB ...
... computed . But c representing the centre of the earth , if Ec be drawn parallel to sa or sb , the angles ACE , BCE will be respectively equal to Aam , Bbn ; therefore the difference between these last angles is equal to the angle ACB ...
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Common terms and phrases
aberration altitude angular distance apparent ascension and declination astronomical axis azimuth bisected celestial body celestial sphere centre circumference co-ordinates colatitude computed considered correction cotan degrees described determined diameter difference earth ecliptic ellipse equal equator equatorial equinoctial point expressed fixed star formula geocentric given Greenwich horary horizontal parallax hour angle inclination instant instrument intersection interval latitude latter let fall longitude mean meridian micrometer moon moon's motion Nautical Almanac node nutation obliquity observed obtained parallax parallel perihelion perpendicular plane passing polar distance pole position primitive circle radius vector refraction represented revolution revolve right angles right ascension satellite sector semidiameter side sidereal sin.² sine sphere spherical triangle star's station substituting subtended subtracted sun's supposed surface tangent telescope transit transit telescope Trigon trigonometry vertical whence wire zenith distance zero