36 



REPORT 1871. 



Date. 



Hour. 



1871. 

 Mar.18 



23 



m 



20 a.m 

 (local time), 



24 



Apr. 11 



h 

 12 



Place of 

 Observation. 



6 35 p.m 



4 25 a.m. 

 (local time). 



Turin and other 

 places in Pied- 

 mont. 



Broadstairs 

 (Kent). 



Volpeglino, and 

 other stations 

 in Piedmont. 



Apparent Size. 



Colour. 



Apparent diameter 

 of full moon. 



Disk of apparent 

 size of Sirius, in- 

 cluding his rays. 



Nucleus 25' diame 

 ter. 



9 46 p.m. Ibid, Moncalieri 

 (local time). Piedmont. 



„ 12 



„ 14 



„ 22 



15 p.m 

 (local time) 



Lodi; Moncalieri, 

 Piedmont. 



11 39 p.m.TheObservatory, 

 (local time).] Naples 



10 37 30 



p.m. 

 (local time). 



Moncalieri, 

 Piedmont. 



Nucleus 10' diame. 

 ter. 



Very large and bril- 

 liant. 



Duration. 



Brilliant white 



Nucleus green, 

 with red 

 train. 



Brilliant white 



Apparent Course. 



About 2 mi- 

 nutes. Very 

 protracted 

 course, and 

 slow speed 



Bluish white. 



Slow and 

 stately mo- 

 tion. 



■n. 



■n. 



Reddish, then 

 bright blue. 



White 



Passed directly over 

 the townof Turin 

 from the moun- 

 tains near Susa, 

 towards the op 

 posite horizon. 



First appearance at. 

 a point about 30° 

 above the N. J E. 

 horizon. 



6. Meteors of the largest class, as described in the foregoing list of such 

 occurrences, were more than ordinarily frequent during the months of March 

 and April last, ajjpearing principally on the nights of the 17th-18th and 

 23rd-24th of March, and on those of the 11th and 12th of April last. On 

 the first of these dates two fireballs were observed in France and Italy, the 

 former of which was also seen in the south of England, at Chichester. A 

 large meteor was seen in Kent and Essex, on the second date, a few minutes 

 after sunset ; and two detonating meteors were observed at Urbiuo, and were 

 generally visible in Italy on the same night. The third detonating meteor 

 of which accounts have reached the Committee, made its appearance in Pied- 

 mont on the evening of the 12th of April last. Professor Serpieri and Mr. 

 Denza, at the Observatories of Urbino and Moncalieri, near Turin, are collect- 

 ing sufficient details of these large meteors to calculate their real course. 



