296 



REPORT — 18G9. 



" The positions of the radiant of this meteor-showor, as stated by other 

 authors, are as folloAvs : — 



Greg E. A. 282 



N. Decl. + 33 



A. Herschel , 



Heis 



Gallc and Karlinski . 



277-5 



277 



278 



more nearly 



+ 34-5 

 + 38 

 + 34-5 



conformable 



to the 



" Your observations, accordingly, arc 

 radiant-point of the comet than tliose of all the other observers." 



Eight meteors observed in one hour, on the evening of the 1st of May, 

 diverged from a radiant-point which remained sensibly fixed at about II. A. 

 202°, N. Dccl. 62°. The position of the radiant-point M 7, 8, near ij Ursa) 

 Majoris, as given by Mr. Greg in the last edition of the ' British Association 

 Atlas' (see Eeport for 1868, p. 401), for the interval between April 25th 

 and May 25th, is at 11. A. 202°, N. Deel. 52°, about 10° from the position 

 assigned to the vanishing-point of these meteors at Urbino. 



5. llie August Meteor-shower in 1869. — The following Table contains a 

 summary of observations by Mr. Greg, at Manchester, on the periodic nights 

 of the 9-llth of August. During the intervals of time recorded in the list, 

 the sky was generally clear. 



Date and interval of obser- 

 vations. 



Average rate 



of frequency 



of the meteor.-^ 



seen by one 



observer. 



18(«). h 



Aug. 9. 10 



11. 12 



12. 10 



m h m 



5 to II 25 r.M... 



5 I 25 A.M... 



15 II 45 A.M... 



m m 

 5 or 6 



4 



Eemarks and average radiant-point. 



Radiant about B Camclopardi. 

 Mostly Perseids ; radiant /c Persoi. 

 One half appeared in '20m., between lOh. 

 15m. and lOh. 35m. a.m. 



Mr. Greg observed a fireball, three times as bright as Jupiter, on the evening 

 of the 9th, at lOh. 23m. p.m. It was bluish white, and lasted one second, 

 commencing at y Pegasi, and proceeding 12° or 15° in a direct course from 

 7j Persei. The meteors on the night of the 10-1 1th were bluish white, of 

 short course, and leaving momentary streaks in those of first and second 

 magnitude, and dull yellowi.sh-red in the smaller stars ; they radiated from 

 near ri, h Persei, instead of from Cassiopeia as during the previous years, or 

 from B Camclopardi as on the preceding night, and were about twice and a 

 half as frequent as on the evening of the 9th, coming occasionally in groups 

 of two or three in a minute, after a lull of five or six minutes without any 

 appearance of a shooting-star. No large meteors were seen on the nights of 

 the 10th and 11th. 



At Broadstairs, in Kent, Mr. George Chapman noted the appearance of 

 eight meteors, about the average briglitncss of second-magnitude stars, two 

 of which left momentary trains, during the half-hour from 9h. to 9h. 30m. 

 P.M. on the evening of the 10th, and two similar shooting-stars during the 

 quarter of an hour ending at lOh. 15m. p.m. on the evening of the 12th of 

 August. The duration and length of path of these meteors was about ] 0° 

 in less than two seconds. Their colour was principally white, and the 

 apparent paths of all were remarkable for the uniformity with which they 

 radiated from a point about midway between y Persei and the bright stars 

 of Cassiopeia. On the niglit of tlic 11 th the sky was overcast. 



