Outlines of Astronomy |
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Page xii
... Determination of geo- graphical positions — of latitudes - of longitudes . Conduct of a trigonometri- cal survey . Of maps . Projections of the sphere . Measurement of heights by the barometer ......... 118 CHAPTER V. OF URANOGRAPHY ...
... Determination of geo- graphical positions — of latitudes - of longitudes . Conduct of a trigonometri- cal survey . Of maps . Projections of the sphere . Measurement of heights by the barometer ......... 118 CHAPTER V. OF URANOGRAPHY ...
Page 21
... determined to make ourselves distinctly understood , and will appeal to reason at all . As for the method of asser- tion , or a direct demand on the faith of the student ( though in some com- plex cases indispensable , where ...
... determined to make ourselves distinctly understood , and will appeal to reason at all . As for the method of asser- tion , or a direct demand on the faith of the student ( though in some com- plex cases indispensable , where ...
Page 39
... determination of the angle S'A s , by which a celestial object at any assigned altitude , H A S , is raised in appearance above its true place , is , unfortunately , a very difficult subject of physical inquiry , and one on which ...
... determination of the angle S'A s , by which a celestial object at any assigned altitude , H A S , is raised in appearance above its true place , is , unfortunately , a very difficult subject of physical inquiry , and one on which ...
Page 66
... determined . ( 105. ) DEF . 22. The declination of a heavenly body is its angular distance from the equinoctial or celestial equator , or the complement to 90 ° of its angular distance from the nearest pole , which latter distance is ...
... determined . ( 105. ) DEF . 22. The declination of a heavenly body is its angular distance from the equinoctial or celestial equator , or the complement to 90 ° of its angular distance from the nearest pole , which latter distance is ...
Page 75
... ; and , therefore , the local sidereal time at that moment . This is a very useful observation for determining the latitude and time at an unknown station . CHAPTER III . ' . - OF THE NATURE OF ELEMENTARY RELATIONS . 75.
... ; and , therefore , the local sidereal time at that moment . This is a very useful observation for determining the latitude and time at an unknown station . CHAPTER III . ' . - OF THE NATURE OF ELEMENTARY RELATIONS . 75.
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Common terms and phrases
altitude amount angle angular appear apsides ascertained astronomers axis bright calculation celestial centre circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic effect ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity greater heavens heliocentric horizon inclination increase inequality instance instrument interval Jupiter latitude latter less light longitude lunar magnitude mass mean measure meridian moon moon's motion nearly nebula node normal force nutation object observed orbit parallax parallel perigee perihelion period perpendicular perturbations planet planetary pole portion position precession proper motions proportion recede recess reckoned refraction remarkable respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose syzygies tangential force telescope tion Uranus variation velocity visible whole zenith