Outlines of Astronomy |
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Page vii
... present state of our knowledge in those departments . The chief novelty in the volume , as it now stands , will be found in the manner in which the subject of Perturbations is treated . It is not it cannot be made elementary , in the ...
... present state of our knowledge in those departments . The chief novelty in the volume , as it now stands , will be found in the manner in which the subject of Perturbations is treated . It is not it cannot be made elementary , in the ...
Page x
... on mature consideration , to present the sub- ject in its simplest form , avoiding altogether entering into mi- nutiæ of chronological discussion . Collingwood , April 12 , 1849 . J. F. W. HERSCHEL . PREFACE INTRODUCTION ...
... on mature consideration , to present the sub- ject in its simplest form , avoiding altogether entering into mi- nutiæ of chronological discussion . Collingwood , April 12 , 1849 . J. F. W. HERSCHEL . PREFACE INTRODUCTION ...
Page xiv
... present attached to cometary astronomy , and its reasons . Re- marks on cometary orbits in general 295 PART II . OF THE PLANETARY PERTURBATIONS . CHAPTER XII . Subject propounded . Problem of three bodies . Superposition of small ...
... present attached to cometary astronomy , and its reasons . Re- marks on cometary orbits in general 295 PART II . OF THE PLANETARY PERTURBATIONS . CHAPTER XII . Subject propounded . Problem of three bodies . Superposition of small ...
Page 18
... present only lucid sparks or brilliant atoms , are to him suns of various and transcendent glory - effulgent centres of life and light to myriads of unseen worlds . So that when , after dilating his thoughts to comprehend the grandeur ...
... present only lucid sparks or brilliant atoms , are to him suns of various and transcendent glory - effulgent centres of life and light to myriads of unseen worlds . So that when , after dilating his thoughts to comprehend the grandeur ...
Page 20
... present work ( though of such , at least in the latter predicament , -I trust the num- ber will be few ) , that its utmost pretension is to place them on the threshold of this particular wing of the temple of Science , or rather on an ...
... present work ( though of such , at least in the latter predicament , -I trust the num- ber will be few ) , that its utmost pretension is to place them on the threshold of this particular wing of the temple of Science , or rather on an ...
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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