Outlines of AstronomyBlanchard & Lea, 1856 - 557 стор. |
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Сторінка xiv
... nearly circular orbits . Application to the case of the Moon . Theory of the lunar apsides and excentricity . Experimental illustration . Application of the foregoing principles to the planetary theory . Compensation in orbits very nearly ...
... nearly circular orbits . Application to the case of the Moon . Theory of the lunar apsides and excentricity . Experimental illustration . Application of the foregoing principles to the planetary theory . Compensation in orbits very nearly ...
Сторінка 32
... nearly to the surface of the sea . By this time the sun was set , and the shades of evening began to close in . He threw out nearly all his ballast , and suddenly sprang upwards to a great height , and by so doing brought his horizon to ...
... nearly to the surface of the sea . By this time the sun was set , and the shades of evening began to close in . He threw out nearly all his ballast , and suddenly sprang upwards to a great height , and by so doing brought his horizon to ...
Сторінка 36
... nearly equable thick- ness , enveloping our globe on all sides ; or rather as an aërial ocean , of which the surface of the sea and land constitutes the bed , and whose infe- rior portions or strata , within a few miles of the earth ...
... nearly equable thick- ness , enveloping our globe on all sides ; or rather as an aërial ocean , of which the surface of the sea and land constitutes the bed , and whose infe- rior portions or strata , within a few miles of the earth ...
Сторінка 51
... nearly where to look for them . During total eclipses of the sun , the larger stars also appear in their proper situations . ( 62. ) But to return to our incipient astronomer , whom we left contem- plating the sphere of the heavens , as ...
... nearly where to look for them . During total eclipses of the sun , the larger stars also appear in their proper situations . ( 62. ) But to return to our incipient astronomer , whom we left contem- plating the sphere of the heavens , as ...
Сторінка 53
... nearly parallel to the horizon ; and , in short , every appearance leads to suppose that could he travel far enough to the north , he would at length attain a point vertically under the northern pole of the heavens , at which none of ...
... nearly parallel to the horizon ; and , in short , every appearance leads to suppose that could he travel far enough to the north , he would at length attain a point vertically under the northern pole of the heavens , at which none of ...
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Outlines of Astronomy John Frederick William Herschel,Sir John Frederick William Herschel Повний перегляд - 1851 |
Загальні терміни та фрази
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 elements ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity 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 render 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