Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
З цієї книги
Результати 1-5 із 100
Сторінка 15
... portion of it which we can see at a single view , to allow of our forming any judgment of the form of the whole , from that of a part so dis- figured . But with the surface of the sea or any vastly ex- tended level plain , the case is ...
... portion of it which we can see at a single view , to allow of our forming any judgment of the form of the whole , from that of a part so dis- figured . But with the surface of the sea or any vastly ex- tended level plain , the case is ...
Сторінка 17
... portion of the earth's surface visible to a spectator at M , and the angle N M Q included between the two extreme visual rays is the measure of its apparent angular diameter . Leaving , at present , out of con- sideration the effect of ...
... portion of the earth's surface visible to a spectator at M , and the angle N M Q included between the two extreme visual rays is the measure of its apparent angular diameter . Leaving , at present , out of con- sideration the effect of ...
Сторінка 18
... portion or zone of it which lies between X N and YQ ; i other words , his sky will be more than a hemisphere by the zone YQXN . It is the angular breadth of this redundan zone — the angle YMQ , by which the visible horizon appear ...
... portion or zone of it which lies between X N and YQ ; i other words , his sky will be more than a hemisphere by the zone YQXN . It is the angular breadth of this redundan zone — the angle YMQ , by which the visible horizon appear ...
Сторінка 18
... portion or zone of it which lies between X N and Y Q ; in other words , his sky will be more than a hemisphere by the zone YQXN . It is the angular breadth of this redundant the angle Y MQ , by which the visible horizon appears ...
... portion or zone of it which lies between X N and Y Q ; in other words , his sky will be more than a hemisphere by the zone YQXN . It is the angular breadth of this redundant the angle Y MQ , by which the visible horizon appears ...
Сторінка 19
... portion still continue to diminish in apparent size , but the hull begins to disappear bodily , as if sunk below the surface . When it has reached a certain T distance , as at C , its hull has c 2 THE HORIZON AND ITS DIP . 19.
... portion still continue to diminish in apparent size , but the hull begins to disappear bodily , as if sunk below the surface . When it has reached a certain T distance , as at C , its hull has c 2 THE HORIZON AND ITS DIP . 19.
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.