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Page vi
... Book IV . THE PHYSICAL PERIOD 12. THE SUN · PAGE 73 86 3 94 13. THE MOON AND PLANETS - 14. COMETS AND METEORS 107 120 15. THE STARS AND NEBULÆ - n 125 INDEX 147 PREFACE An attempt has been made in these pages to vi CONTENTS.
... Book IV . THE PHYSICAL PERIOD 12. THE SUN · PAGE 73 86 3 94 13. THE MOON AND PLANETS - 14. COMETS AND METEORS 107 120 15. THE STARS AND NEBULÆ - n 125 INDEX 147 PREFACE An attempt has been made in these pages to vi CONTENTS.
Page 83
... nebulæ , but also to obtain accurate relative positions of neighbouring stars ; to pick up objects that are invisible in any telescope ; and , most of all perhaps , in fixing the positions of faint satellites . Thus Saturn's distant ...
... nebulæ , but also to obtain accurate relative positions of neighbouring stars ; to pick up objects that are invisible in any telescope ; and , most of all perhaps , in fixing the positions of faint satellites . Thus Saturn's distant ...
Page 125
... Nebulæ . Passing now from our solar system , which appears to be subject to the action of the same forces as those we experience on our globe , there remains an innumer- able host of fixed stars , nebulæ , and nebulous clusters of stars ...
... Nebulæ . Passing now from our solar system , which appears to be subject to the action of the same forces as those we experience on our globe , there remains an innumer- able host of fixed stars , nebulæ , and nebulous clusters of stars ...
Page 127
... nebulæ and 806 double stars , counted the stars in 3,400 guage - fields , and compared the principal stars photometrically . Some of the things for which he is best known were results of those accidents that happen only to the ...
... nebulæ and 806 double stars , counted the stars in 3,400 guage - fields , and compared the principal stars photometrically . Some of the things for which he is best known were results of those accidents that happen only to the ...
Page 138
... nebula , cooled down , and rushed through another part of the nebula , rendering the nebular gas more luminous than itself . I Since 1892 one Nova after another has shown a spectrum as described above , like a meteor rushing towards us ...
... nebula , cooled down , and rushed through another part of the nebula , rendering the nebular gas more luminous than itself . I Since 1892 one Nova after another has shown a spectrum as described above , like a meteor rushing towards us ...
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accepted accurate ancient appear astronomers attraction bodies bright calculations called catalogue cause centre century Chinese circle comet compared complete Copernicus determined diameter direction discovered discovery distance earth eclipse effect elements enabled epicycles equal error explain fact fixed follow force four Galileo gave give given gravitation heavens held Herschel increased interesting Jupiter Kepler knowledge known later LIBRARIES light lunar Mars mass mathematical mean measured method miles moon moon's motion move Newton noticed object observations Observatory opposition orbit original parallax pass period photographic physical planet planetary pole position predicted progress proper motion proved records researches revolve ring rotation round Royal satellites seems seen showed SIGILLUM solar system spectroscope spectrum stars studied sun's supposed surface tables telescope theory tion trace true Tycho Brahe UNIVERSITY VERITAS