Practical Astronomy and Geodesy: including the projections of the Sphere and Spherical TrigonometryLongman, Brown, Green and Longmans, 1845 |
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Page xi
... distance between the two arcs and the difference of their lengths CHAP . IV . - - DESCRIPTION OF THE INSTRUMENTS EMPLOYED IN PRACTICAL ASTRONOMY . 58 THE SIDEREAL CLOCK . - MICROMETER . - TRANSIT INSTRUMENT . - ZENITH MURAL CIRCLE ...
... distance between the two arcs and the difference of their lengths CHAP . IV . - - DESCRIPTION OF THE INSTRUMENTS EMPLOYED IN PRACTICAL ASTRONOMY . 58 THE SIDEREAL CLOCK . - MICROMETER . - TRANSIT INSTRUMENT . - ZENITH MURAL CIRCLE ...
Page xii
... distance of any wire from the mean wire , when the transit of a star near the pole is used 93. Correction to be ... zenith sector - 108. Improved zenith sector by the Astronomer Royal 109. Manner of making the observations 110 ...
... distance of any wire from the mean wire , when the transit of a star near the pole is used 93. Correction to be ... zenith sector - 108. Improved zenith sector by the Astronomer Royal 109. Manner of making the observations 110 ...
Page xiii
... distances 120. Manner of deducing from thence the differences of declina- tion and right ascension between two ... zenith distance , as- suming the earth to be a plane and the upper surface of the atmosphere parallel to it - 143 ...
... distances 120. Manner of deducing from thence the differences of declina- tion and right ascension between two ... zenith distance , as- suming the earth to be a plane and the upper surface of the atmosphere parallel to it - 143 ...
Page xxiii
... distances of the sun , the latter being near the meridian ; with an example 352. Formula for determining the ... zenith distance of the sun on account of the change in the ship's place in the interval between the observations 356 ...
... distances of the sun , the latter being near the meridian ; with an example 352. Formula for determining the ... zenith distance of the sun on account of the change in the ship's place in the interval between the observations 356 ...
Page 10
... zenith of that station ; R will express its geographical longitude , and R s its geographical latitude . The arc T ... distance . A plane passing through any point , parallel to the ecliptic Ev L , will cut the celestial sphere in ...
... zenith of that station ; R will express its geographical longitude , and R s its geographical latitude . The arc T ... distance . A plane passing through any point , parallel to the ecliptic Ev L , will cut the celestial sphere in ...
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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 circle colatitude computed considered correction corresponding cotan degrees described determined diameter difference disk earth ecliptic ellipse equal equator equatorial equinoctial point error expressed fixed star formula given Greenwich heliocentric horary horizontal parallax hour angle instant instrument interval latitude latter let fall mean meridian micrometer moon moon's motion movement Nautical Almanac nearly node noon nutation obliquity observed obtained P'PR parallax parallel perihelion perpendicular plane passing polar distance pole position projection radius vector refraction represented revolution revolve right angles right ascension satellite screw sector semidiameter sidereal sidereal clock sine solar sphere spherical triangle star's station subtracted sun's supposed surface tangent telescope transit transit telescope Trigon variation vertical wire zenith distance zero