Astronomy, as it is Known at the Present Day: To which is Added,a Supplement, Containing an Account of the Nature and Use of Astronomical Instruments, the Manner of Calculating the Notes of the Calendar, the Distances and Magnitudes of the Planets, and a Number of Other Useful and Interesting Calculations in AstronomyI. Chidley, 1836 - 254 من الصفحات |
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الصفحة 9
... Parallax of any celestial object is the difference of its angular position as it would be seen from the centre of the earth , and as it is seen from a point on the surface of the earth . This is called the diurnal parallax , to ...
... Parallax of any celestial object is the difference of its angular position as it would be seen from the centre of the earth , and as it is seen from a point on the surface of the earth . This is called the diurnal parallax , to ...
الصفحة 25
... parallax , which is of so much use in practical astronomy . See page 9th of this work , Art . 25 . * The two points where the orbit of a planet crosses the ecliptic , or earth's orbit , is called its nodes . OF THE EARTH . More distant ...
... parallax , which is of so much use in practical astronomy . See page 9th of this work , Art . 25 . * The two points where the orbit of a planet crosses the ecliptic , or earth's orbit , is called its nodes . OF THE EARTH . More distant ...
الصفحة 42
... parallax , that wondrous clue , By which the distance and the magnitude Of the celestial spheres are known on earth . No astronomer has ever done more to improve the telescope , or made more observations and discoveries in the heavens ...
... parallax , that wondrous clue , By which the distance and the magnitude Of the celestial spheres are known on earth . No astronomer has ever done more to improve the telescope , or made more observations and discoveries in the heavens ...
الصفحة 49
... parallax , and therefore was not only far above the regions of our atmosphere , but much higher than the moon ; that few have come so near the earth as to have any diurnal parallax , yet all Comets have an annual parallax , the revolu ...
... parallax , and therefore was not only far above the regions of our atmosphere , but much higher than the moon ; that few have come so near the earth as to have any diurnal parallax , yet all Comets have an annual parallax , the revolu ...
الصفحة 50
... parallax . Descartes advanced aother opinion , which is , that Comets are only stars , that were formerly fixed like the rest , but becoming gra- dually covered with macula or spots , and at length wholly deprived of their light ...
... parallax . Descartes advanced aother opinion , which is , that Comets are only stars , that were formerly fixed like the rest , but becoming gra- dually covered with macula or spots , and at length wholly deprived of their light ...
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Astronomy, as It Is Known at the Present Day <span dir=ltr>George G. Carey</span> لا تتوفر معاينة - 2015 |
عبارات ومصطلحات مألوفة
altitude angle appear ascertained astronomers atmosphere Aurora Borealis axis calculations called celestial bodies centre circle clouds colour Comets conjunction constellation degrees direction disc discovered diurnal diurnal motion Dominical letter earth's orbit eccentric anomaly eclipse equal equator equinox eye-glass fixed stars glass globe gravity greater greatest half heat heavenly bodies heavens Hence Herschel horizon inferior conjunction Jupiter known latitude length less light longitude luminous lunar magnitude mean anomaly mean distance Mercury meridian miles minutes moon moon's motion move nearly night node object observed opposite parallax passing perihelion period phenomena poles produced quantity of matter rays refracting telescope refraction retrograde motion revolution round revolve right ascension rise round the earth round the sun satellites Saturn seen shadow shines sidereal solar spherical spots sun and moon sun's supposed surface telescope tides tion true anomaly tube Uranus Venus visible