Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
З цієї книги
Результати 1-5 із 44
Сторінка xvi
... Equinoctial time . APPENDIX . I. Lists of Northern and Southern Stars , with their approximate Magnitudes , on the Vulgar and Photometric Scales II . Synoptic Table of the Elements of the Planetary System III . Synoptic Table of the ...
... Equinoctial time . APPENDIX . I. Lists of Northern and Southern Stars , with their approximate Magnitudes , on the Vulgar and Photometric Scales II . Synoptic Table of the Elements of the Planetary System III . Synoptic Table of the ...
Сторінка 60
... equinoctial , is a great circle of the celestial sphere , marked out by the indefinite extension of the plane of the terrestrial equator . ( 98. ) DEF . 15. The celestial horizon of any place is a great circle of the sphere marked out ...
... equinoctial , is a great circle of the celestial sphere , marked out by the indefinite extension of the plane of the terrestrial equator . ( 98. ) DEF . 15. The celestial horizon of any place is a great circle of the sphere marked out ...
Сторінка 62
... equinoctial or celestial equator , or the complement to 90 ° of its angular distance from the nearest pole , which ... equinoctial . The hour circle , passing through any particular heavenly body , serves to refer it to a point in the ...
... equinoctial or celestial equator , or the complement to 90 ° of its angular distance from the nearest pole , which ... equinoctial . The hour circle , passing through any particular heavenly body , serves to refer it to a point in the ...
Сторінка 63
... equinoctial is 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 ...
... equinoctial is 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 ...
Сторінка 64
... equinoctial ; that what are me- ridians on the earth are called hour circles in the heavens , and the angles they include between them at the poles are called hour angles . All this is convenient and intelligible ; and had they been ...
... equinoctial ; that what are me- ridians on the earth are called hour circles in the heavens , and the angles they include between them at the poles are called hour angles . All this is convenient and intelligible ; and had they been ...
Інші видання - Показати все
Outlines of Astronomy John Frederick William Herschel,Sir John Frederick William Herschel Повний перегляд - 1851 |
Загальні терміни та фрази
angle angular appear apsides ascertained astronomical 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 Edition effect elements ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe heavens heliocentric horizon inclination 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 planet planetary pole portion position Post 8vo precession proper motions proportion recede recess reckoned refraction respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible vols whole Woodcuts zenith
Популярні уривки
Сторінка 674 - A Dictionary of Science, Literature, and Art : Comprising the History, Description, and Scientific Principles of every Branch of Human Knowledge ; with the Derivation and Definition of all the Terms in General Use. Edited by WT BRANDE, FRSL and E.