Practical Astronomy and Geodesy: including the projections of the Sphere and Spherical TrigonometryLongman, Brown, Green and Longmans, 1845 |
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Page xxvi
... degrees of latitude , that the earth is compressed at the poles NOTE . - The following propositions relate to the ... degrees on a me- ridian - - 387 - 388 - 388 416. ( Prop . V. ) To investigate the law of the increase of the ...
... degrees of latitude , that the earth is compressed at the poles NOTE . - The following propositions relate to the ... degrees on a me- ridian - - 387 - 388 - 388 416. ( Prop . V. ) To investigate the law of the increase of the ...
Page 6
... degrees , and Venus to a distance not exceeding 48 degrees : they afterwards appear to return towards him , and after having been for some days invisible , they may be seen in the east before sun- rise ; at first they appear to recede ...
... degrees , and Venus to a distance not exceeding 48 degrees : they afterwards appear to return towards him , and after having been for some days invisible , they may be seen in the east before sun- rise ; at first they appear to recede ...
Page 7
... degrees northward and southward of the sun's apparent annual path , is called the zodiac , and twelve groups of stars immediately about that path bear the name of the zodiacal constellations . The designations of these are as follow ...
... degrees northward and southward of the sun's apparent annual path , is called the zodiac , and twelve groups of stars immediately about that path bear the name of the zodiacal constellations . The designations of these are as follow ...
Page 8
... degrees ) : 360 ° : AB circumference ( 24850 miles , nearly . ) 15. The processes by which the earth's form and mag- nitude are with precision determined , as well as those which are employed in finding the magnitudes of the sun , moon ...
... degrees ) : 360 ° : AB circumference ( 24850 miles , nearly . ) 15. The processes by which the earth's form and mag- nitude are with precision determined , as well as those which are employed in finding the magnitudes of the sun , moon ...
Page 10
... degrees in the arcs v T and T S , VR and RS , whether obtained by direct observation , or from astronomical tables , is sufficient to determine the place s of a star in the celestial sphere . It may be necessary to observe that the ...
... degrees in the arcs v T and T S , VR and RS , whether obtained by direct observation , or from astronomical tables , is sufficient to determine the place s of a star in the celestial sphere . It may be necessary to observe that the ...
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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