A Treatise on Practical Astronomy: As Applied to Geodesy and Navigation |
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Page viii
As Applied to Geodesy and Navigation Charles Leander Doolittle. CHAPTER V. DETERMINATION OF TIME AND LATITUDE - METHODS ADAPTED TO THE USE OF THE SEXTANT . Determination of time- By a single altitude of the sun ... By a single altitude ...
As Applied to Geodesy and Navigation Charles Leander Doolittle. CHAPTER V. DETERMINATION OF TIME AND LATITUDE - METHODS ADAPTED TO THE USE OF THE SEXTANT . Determination of time- By a single altitude of the sun ... By a single altitude ...
Page x
As Applied to Geodesy and Navigation Charles Leander Doolittle. CHAPTER IX . DETERMINATION OF AZIMUTH . PAGE The ... determined by transit instrument . Circumpolar star at any hour - angle .. 546 552 CHAPTER X. PRECESSION - NUTATION ...
As Applied to Geodesy and Navigation Charles Leander Doolittle. CHAPTER IX . DETERMINATION OF AZIMUTH . PAGE The ... determined by transit instrument . Circumpolar star at any hour - angle .. 546 552 CHAPTER X. PRECESSION - NUTATION ...
Page 1
... determined by observation , the re- sult can never be regarded otherwise than as an approxima- tion to the true ... determination of a quantity depending on in- strumental measurement , however carefully made , must be imperfect . It ...
... determined by observation , the re- sult can never be regarded otherwise than as an approxima- tion to the true ... determination of a quantity depending on in- strumental measurement , however carefully made , must be imperfect . It ...
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... determined by observation either directly or indirectly . Let M , M2 , M ,, . . . Mm be the individual values obtained . Then regarding M , as a determination of the unknown quantity , its error will be ( M , - x ) . Similarly , ( M ...
... determined by observation either directly or indirectly . Let M , M2 , M ,, . . . Mm be the individual values obtained . Then regarding M , as a determination of the unknown quantity , its error will be ( M , - x ) . Similarly , ( M ...
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... determining as soon as the form of the function is known , and this can best be determined by considering a particular case . As this func- tion is strictly general , if we have once determined its form in a special case the result will ...
... determining as soon as the form of the function is known , and this can best be determined by considering a particular case . As this func- tion is strictly general , if we have once determined its form in a special case the result will ...
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Common terms and phrases
accuracy altitude angle apparent approximation arithmetical mean ascension and declination axis azimuth Bessel catalogue celestial sphere centre chronograph chronometer circle circumpolar stars clamp clock co-ordinates coefficients collimation computation constant convenient correction culmination determined difference differential earth east ecliptic elongation emersion ephemeris equal example follows formulæ geocentric given gives Greenwich horizontal 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