Outlines of AstronomyLongman, green and Roberts, 1859 - 714 pages |
From inside the book
Results 1-5 of 100
Page 6
... determined to make ourselves distinctly understood , and will appeal to reason at all . As for the method of assertion , or a direct demand on the faith of the student ( though in some complex cases indispensable , where illustrative ...
... determined to make ourselves distinctly understood , and will appeal to reason at all . As for the method of assertion , or a direct demand on the faith of the student ( though in some complex cases indispensable , where illustrative ...
Page 29
... 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 63
... 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 64
... determined , will be explained further on . ( 109. ) The right ascensions of celestial objects are always reckoned eastwards from the equinox , and are estimated either in degrees , minutes , and seconds , as in the case of terrestrial ...
... determined , will be explained further on . ( 109. ) The right ascensions of celestial objects are always reckoned eastwards from the equinox , and are estimated either in degrees , minutes , and seconds , as in the case of terrestrial ...
Page 74
... ; 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 74 OUTLINES OF ASTRONOMY .
... ; 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 74 OUTLINES OF ASTRONOMY .
Other editions - View all
Common terms and phrases
amount angle angular appear apsides ascertained astronomical attraction axis bright calculation celestial circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic effect epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity heavens heliocentric hemisphere 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 perturbations phænomena planet planetary pole portion position precession precisely proper motions proportion recede recess reckoned refraction remarkable render respect result revolution revolving right ascension ring rotation round satellites Saturn seen sidereal sidereal day situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible whole zenith