A Treatise on Practical Astronomy: As Applied to Geodesy and Navigation |
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Page 102
... referred to the horizon as the primitive or fundamental plane are the altitude and azi- muth . THE ALTITUDE of a heavenly body is its distance above the horizon , measured on a vertical circle passing through that body . THE AZIMUTH of ...
... referred to the horizon as the primitive or fundamental plane are the altitude and azi- muth . THE ALTITUDE of a heavenly body is its distance above the horizon , measured on a vertical circle passing through that body . THE AZIMUTH of ...
Page 107
... 302 ; or any other work on analytical geometry of three dimensions . > Let the star now be referred to the equator as § 64 . 107 TRANSFORMATION OF CO - ORDINATES . Having altitude and azimuth, to find declination and hour-angle.
... 302 ; or any other work on analytical geometry of three dimensions . > Let the star now be referred to the equator as § 64 . 107 TRANSFORMATION OF CO - ORDINATES . Having altitude and azimuth, to find declination and hour-angle.
Page 108
As Applied to Geodesy and Navigation Charles Leander Doolittle. Let the star now be referred to the equator as the funda- mental plane , the positive axis of X being directed to the south point of the equator , the positive axis of Y to ...
As Applied to Geodesy and Navigation Charles Leander Doolittle. Let the star now be referred to the equator as the funda- mental plane , the positive axis of X being directed to the south point of the equator , the positive axis of Y to ...
Page 130
... - Parallax in declination and right ascension , having given the observed declination and right ascension . Case First . 79. Let the star be referred to 130 $ 78 . PRACTICAL ASTRONOMY . Parallax in zenith distance and azimuth.
... - Parallax in declination and right ascension , having given the observed declination and right ascension . Case First . 79. Let the star be referred to 130 $ 78 . PRACTICAL ASTRONOMY . Parallax in zenith distance and azimuth.
Page 131
... referred to a system of rectangular axes , the horizon of the observer being the plane of XY , the positive axis of X being directed to the south point , the positive axis of Y to the west point , and the positive axis of Z to the ...
... referred to a system of rectangular axes , the horizon of the observer being the plane of XY , the positive axis of X being directed to the south point , the positive axis of Y to the west point , and the positive axis of Z to the ...
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Common terms and phrases
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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