Outlines of AstronomyLongman, green and Roberts, 1859 - 714 pages |
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Page xvii
... rings and belts . PLATE IV . Fig . 1. The great Nebula in Orion . Fig . 2. The great Nebula in Argo . PLATE V. Fig . 1. Nebula ( 30 Doradûs ) in the Nubecula Major . Fig . 2. Lunar Volcano , as shown by a 20 feet reflecting Te- lescope ...
... rings and belts . PLATE IV . Fig . 1. The great Nebula in Orion . Fig . 2. The great Nebula in Argo . PLATE V. Fig . 1. Nebula ( 30 Doradûs ) in the Nubecula Major . Fig . 2. Lunar Volcano , as shown by a 20 feet reflecting Te- lescope ...
Page 159
... C D , on opposite ends of the diameter of a ring of metal , which is itself provided with exterior pivots on the extremities of a diameter at right angles to the former , E H D B and let these rest in pivot THE GYROSCOPE . 159.
... C D , on opposite ends of the diameter of a ring of metal , which is itself provided with exterior pivots on the extremities of a diameter at right angles to the former , E H D B and let these rest in pivot THE GYROSCOPE . 159.
Page 207
... ring like that in the figure ( where , however , the undulations are much exaggerated ) . ( See fig . to art . 325. ) ( 323. ) These movements of precession and nutation are common to all the celestial bodies , both fixed and erratic ...
... ring like that in the figure ( where , however , the undulations are much exaggerated ) . ( See fig . to art . 325. ) ( 323. ) These movements of precession and nutation are common to all the celestial bodies , both fixed and erratic ...
Page 256
... ring or corona of light is seen , fading gradually away , as represented in Pl . I. fig . 3. , which ( in cases where the moon is not centrally superposed on the sun ) is observed to be concentric with the latter , not the former body ...
... ring or corona of light is seen , fading gradually away , as represented in Pl . I. fig . 3. , which ( in cases where the moon is not centrally superposed on the sun ) is observed to be concentric with the latter , not the former body ...
Page 268
... ring of light projecting on all sides beyond the dark circle occupied by the moon in its centre . ( 412. ) A solar eclipse can only happen when the sun and moon are in conjunction , that is to say , have the same , or nearly the same ...
... ring of light projecting on all sides beyond the dark circle occupied by the moon in its centre . ( 412. ) A solar eclipse can only happen when the sun and moon are in conjunction , that is to say , have the same , or nearly the same ...
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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