A Treatise on Practical Astronomy: As Applied to Geodesy and Navigation |
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Page vii
... Sidereal and mean solar unit .. To convert mean solar into sidereal time . To convert sidereal into mean solar time .. CHAPTER IV . PAGE 127 131 142 .. 153 154 155 157 160 ANGULAR MEAsurements - THE SEXTANT - THE CHRONOMETER AND CLOCK ...
... Sidereal and mean solar unit .. To convert mean solar into sidereal time . To convert sidereal into mean solar time .. CHAPTER IV . PAGE 127 131 142 .. 153 154 155 157 160 ANGULAR MEAsurements - THE SEXTANT - THE CHRONOMETER AND CLOCK ...
Page x
... . The Tabula Regiomontana . Conversion of mean solar into sidereal time . LIST OF TABLES .. 559 560 560 563 564 564 571 578 583 590 598 603 609 617 620 623 626 INTRODUCTION TO THE METHOD OF LEAST SQUARES . 1. When X CONTENTS .
... . The Tabula Regiomontana . Conversion of mean solar into sidereal time . LIST OF TABLES .. 559 560 560 563 564 564 571 578 583 590 598 603 609 617 620 623 626 INTRODUCTION TO THE METHOD OF LEAST SQUARES . 1. When X CONTENTS .
Page 143
... sidereal time . We have then x = p cos p ' cos ; yo = p cos p ' sin ; 21 = p sin q ' ; 0 and for passing from system ( 166 ) to ( 167 ) , ( 168 ) x = x Xoi y ' = y − yo ; - 2 ′ = 2 — 2 ,. - ( 169 ) Therefore 4 ' cos d ' cos a ' = 4 cos ...
... sidereal time . We have then x = p cos p ' cos ; yo = p cos p ' sin ; 21 = p sin q ' ; 0 and for passing from system ( 166 ) to ( 167 ) , ( 168 ) x = x Xoi y ' = y − yo ; - 2 ′ = 2 — 2 ,. - ( 169 ) Therefore 4 ' cos d ' cos a ' = 4 cos ...
Page 147
... sidereal time by the method to be explained hereafter ( p . 170 ) , we have Bethlehem sidereal time - 0 = From the Nautical Almanac , p . 114 , we find a = δ - Astronomical latitude of Bethlehem = Geocentric latitude of Bethlehem - - Φ ...
... sidereal time by the method to be explained hereafter ( p . 170 ) , we have Bethlehem sidereal time - 0 = From the Nautical Almanac , p . 114 , we find a = δ - Astronomical latitude of Bethlehem = Geocentric latitude of Bethlehem - - Φ ...
Page 151
... Sidereal time , π = 12h 55m 8.36 ; 11 ° 45 ′ 46 ′′ .79 . 56 ' 20 " .4 40 ° 25 ' 1.7 15h 52m 50.2 & p ' 0 = 0 - α ' : = 44 ° 25 ′ 27 ′′ .6 sec d ' = .009 2176 * sec 8 = .008 1471 cos ' 9.881 5812 = sin ( a ) = 9.845 0774 log p = 9.999 ...
... Sidereal time , π = 12h 55m 8.36 ; 11 ° 45 ′ 46 ′′ .79 . 56 ' 20 " .4 40 ° 25 ' 1.7 15h 52m 50.2 & p ' 0 = 0 - α ' : = 44 ° 25 ′ 27 ′′ .6 sec d ' = .009 2176 * sec 8 = .008 1471 cos ' 9.881 5812 = sin ( a ) = 9.845 0774 log p = 9.999 ...
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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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