H ALLEY'S COMET 



19 





3 



* 



3 • 



T a U r U 



C a n s 

 m Cl Lor 



Or rv 



-* — 



Apparent Orbit of Halley's Comet from October 2, 1908, to December 7, 1909. 



1908 (1) Oct. 2, (2) Nov. 25. 1909 (3) Jan. 15, (4) March 3, (5) April 15, 



(6) May 25, (7) June 31, (8) Aug. 3, (9) Sept. 3. (10) Sept. 30, 



(11) Oct. 26, (12) Nov. 17, (13) Dec. 7. 



lous star which proved to be the comet. There were not wanting 

 skeptics who doubted whether the comet would be found, but its return 

 put an end forever to the old notions, and left no foothold for the 

 opponents of Newton's theory of universal gravitation. 



The Constellation at 9 p.m., December 1, 1899. 



