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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 NEBULĘ - 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 NEBULĘ - n 125 INDEX 147 PREFACE An attempt has been made in these pages to vi CONTENTS.
Page 2
... comet was sometimes noted simul- taneously with the death of a great ruler , or an eclipse with a scourge of plague , these might well be looked upon as causes in the same sense that the veering or backing of the wind is regarded as a ...
... comet was sometimes noted simul- taneously with the death of a great ruler , or an eclipse with a scourge of plague , these might well be looked upon as causes in the same sense that the veering or backing of the wind is regarded as a ...
Page 5
... comet has been a member of the solar system , and to identify it in the Chinese observations of comets as far back as 12 B.C. Cowell and Cromellin extended the date to 240 B.C. In the same way the comet 1861.i. has been traced back in ...
... comet has been a member of the solar system , and to identify it in the Chinese observations of comets as far back as 12 B.C. Cowell and Cromellin extended the date to 240 B.C. In the same way the comet 1861.i. has been traced back in ...
Page 10
... comets were added . Biot gave a list of these , and Mr. John Williams , in 1871 , published Observations of Comets from 611 B.C. to 1640 A.D. , Extracted from the Chinese Annals . With regard to those centuries concerning which we have ...
... comets were added . Biot gave a list of these , and Mr. John Williams , in 1871 , published Observations of Comets from 611 B.C. to 1640 A.D. , Extracted from the Chinese Annals . With regard to those centuries concerning which we have ...
Page 36
... comets of 1577 , 1580 , 1582 , 1585 , 1590 , 1593 , and 1596 , and proved that they too had no measurable parallax and must be very distant . The startling discovery that stars are not necessarily permanent , that new stars may appear ...
... comets of 1577 , 1580 , 1582 , 1585 , 1590 , 1593 , and 1596 , and proved that they too had no measurable parallax and must be very distant . The startling discovery that stars are not necessarily permanent , that new stars may appear ...
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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