A Treatise on Practical Astronomy: As Applied to Geodesy and NavigationJ. Wiley and Sons, 1885 - 642 страници |
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Резултати 1 - 5 от 68.
Страница vi
... azimuth , to find declination and hour - angle .. Having declination and hour - angle , to find altitude and azimuth To find hour - angle of star in the horizon .... To find distance between two stars .... CHAPTER II . PARALLAX ...
... azimuth , to find declination and hour - angle .. Having declination and hour - angle , to find altitude and azimuth To find hour - angle of star in the horizon .... To find distance between two stars .... CHAPTER II . PARALLAX ...
Страница vii
... azimuth ... Parallax in right ascension and declination .. Refraction ...... Descartes ' laws .. Bessel's formula for refraction .... Refraction in right ascension and declination .. Dip of the horizon .... CHAPTER III . TIME . Sidereal ...
... azimuth ... Parallax in right ascension and declination .. Refraction ...... Descartes ' laws .. Bessel's formula for refraction .... Refraction in right ascension and declination .. Dip of the horizon .... CHAPTER III . TIME . Sidereal ...
Страница viii
... azimuth constant .. Value of level ....... Adjustments of instrument . Methods of observing ... Theory of the transit ... Diurnal aberration .... Equatorial intervals of threads .. Reduction of imperfect transits . Determination of ...
... azimuth constant .. Value of level ....... Adjustments of instrument . Methods of observing ... Theory of the transit ... Diurnal aberration .... Equatorial intervals of threads .. Reduction of imperfect transits . Determination of ...
Страница ix
... .. 502 Reduction to the meridian ... ... 504 Combination of individual values of the latitude ... 507 Value of micrometer from latitude observations .. 509 CHAPTER IX . DETERMINATION OF AZIMUTH . PAGE The theodolite CONTENTS . ix.
... .. 502 Reduction to the meridian ... ... 504 Combination of individual values of the latitude ... 507 Value of micrometer from latitude observations .. 509 CHAPTER IX . DETERMINATION OF AZIMUTH . PAGE The theodolite CONTENTS . ix.
Страница x
... Azimuth by a circumpolar star near elongation . Correction for diurnal aberration ... Circumpolar stars at any hour - angle ... Correction for second differences in the time . Conditions favorable to accuracy .. Azimuth when time is ...
... Azimuth by a circumpolar star near elongation . Correction for diurnal aberration ... Circumpolar stars at any hour - angle ... Correction for second differences in the time . Conditions favorable to accuracy .. Azimuth when time is ...
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Други издания - Преглед на всички
Често срещани думи и фрази
accuracy altitude angle applied approximation arithmetical mean ascension and declination axis azimuth Bessel catalogue celestial sphere centre chronograph chronometer circle circumpolar stars clamp co-ordinates coefficients collimation computation constant convenient culmination determined difference differential dt dt earth east ecliptic elongation emersion ephemeris equal example follows formulæ geocentric given gives Greenwich horizon hour-angle instant latitude limb logarithms longitude mean solar measured meridian method micrometer middle thread moon moon's right ascension multiplied Nautical Almanac obtained occultation parallax plane position prime vertical probable error proper motion reading reduced refraction right ascension screw semidiameter sextant sidereal sin² star's stars observed Substituting subtract telescope tion transit instrument unknown quantities values vernier weight write zenith distance ΙΟ
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