Outlines of Astronomy |
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Page xi
... solar time . Of the measurements of time . Clocks , chronome- ters . Of astronomical measurements . Principle of telescopic sights to increase the accuracy of pointing . Simplest application of this principle . The transit instrument ...
... solar time . Of the measurements of time . Clocks , chronome- ters . Of astronomical measurements . Principle of telescopic sights to increase the accuracy of pointing . Simplest application of this principle . The transit instrument ...
Page xii
... solar radiation ...... Terrestrial effects of 185 CHAPTER VII . Its parallax , dis- An ellipse about Of the Moon . Its sidereal period . Its apparent diameter . tance , and real diameter . First approximation to its orbit . the Earth in ...
... solar radiation ...... Terrestrial effects of 185 CHAPTER VII . Its parallax , dis- An ellipse about Of the Moon . Its sidereal period . Its apparent diameter . tance , and real diameter . First approximation to its orbit . the Earth in ...
Page xiii
... SOLAR SYSTEM . Apparent motions of the planets . Their stations and retrogradations . The Sun their natural centre of motion . Inferior planets . Their phases , periods , etc. Dimensions and form of their orbits . Transits across the ...
... SOLAR SYSTEM . Apparent motions of the planets . Their stations and retrogradations . The Sun their natural centre of motion . Inferior planets . Their phases , periods , etc. Dimensions and form of their orbits . Transits across the ...
Page xv
... solar apex . Agreement of southern and northern stars in giving the same result . Principles on which the investigation of the solar motion depends . Absolute velocity of the Sun's motion . Supposed revolution of the whole sidereal ...
... solar apex . Agreement of southern and northern stars in giving the same result . Principles on which the investigation of the solar motion depends . Absolute velocity of the Sun's motion . Supposed revolution of the whole sidereal ...
Page xvi
... solar day affected by precession . Incommensurability of the day and year . Its inconvenience . How obviated . The Julian Calendar . Irregularities at its first introduction . Reformed by Augustus . Gregorian reformation . Solar and ...
... solar day affected by precession . Incommensurability of the day and year . Its inconvenience . How obviated . The Julian Calendar . Irregularities at its first introduction . Reformed by Augustus . Gregorian reformation . Solar and ...
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Common terms and phrases
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 ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity greater 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 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