GrORE — On Suspected Variable Stars. 40] 



star to be variable with a period of about 383 days {Ad. Xach., 1069). 

 It is a double star, 3, 8 : 251° : 13"-7, Webb, who says {Cel. OhjectSy 

 p. 270), " Cornish 3 decreasing, 1879; " 3-53 Pritchard (1883-011). 



jS'ovember 22, 1875. I found it slightly brighter than y Cephei. 



December 14, 1876. /3 Cephei about ^ mag. less than 8 Draconis. 



Ko. 664. 7489 B. A. C. CxGifi.— 6i Lalande (42004); 6 m. Heis. 

 2s ot in Argelander^s JJranometria ; 7 m. Franks, 1877, " quite invisible 

 to naked eye " {private letter). 



!N"o. 664A. BiKMiNGHAM 587 Ctgni = LL 42153. — 7|-m. Lalande; 

 8 Harding; 6'7 Argelander ; 7 Webb; 6*8 Birmingham, September 3, 

 1876. This star may possibly be identical with one measured 5'36 by 

 Peirce {Harvard Annals, vol. ix., p. 137), "Following p Cygni," but 

 which he could not afterwards find. He says (p. 141), "August 2, 

 1 875, I could find no star which could possibly be identified with the one 

 observed. The star was red." On I^ovember 25, 1878, I found Bir- 

 mingham's star less than LL 42205 and LL 42376, but brighter than 

 LL 42042. October 4, 1879, slightly brighter than LL 42205 and 

 42376. 



'Eo. 665. 41 CAPRicoEisri. — 6 m. Lacaille (8893) ; 6 m. Lalande 

 (42235); 5 Harding; 6-5 Heis and Behrmann ; 5*8 Gould. Sir W. 

 Herschel gives 41, 33. 6 m. Franks, and - 33 Capricorni (1877); 

 6-7 Cape Catalogue (1878*74). 



October 8, 1876. I found 41 = 30 Capricorni. 



Closely n.p. is the cluster 30 Messier. 



x^o. 666. e Pegasi. — 3m. Ptolemy, Sufi and Lalande; 2-3 Arge- 

 lander and Heis; 2-62 Sir J. Herschel (a and y8 Pegasi = 2-65) 2*3 

 Crould ; 3 m. Franks, October 5, 1877. Schwab suspected variation 

 in this star, and found a period of about 25|- days (A. IS". 2220). 

 Gould also finds fluctuations of brightness in his observations at Albany 

 and Cordoba ; at the latter place it was sometimes estimated as brighter 

 than a Pegasi, and sometimes decidedly fainter, but never below 2'6m. 

 Sir W. Herschel gives the following sequences : — 8 (e)-54 (a) 37 Cygni 

 -8 21 And 7 8, 54 (a) 8 , 53 (^) 8 ; 16 Ceti and 8 , 24 Piscis Aus- 

 tralis. Pritchard 2-43 (1882). 2-41 and 2-8 H.P. 



September 4, 1883, and September 10, 1883, I found e Pegasi 

 about 0'3m. less than a Pegasi. 



JS'o. 667. 46 {c^) Capkicoeni.— 6 m. Lalande (42369) ; 6 Harding; 

 Sir W. Herschel found 46 — , 47 ; 5 m. Heis ; b^ Gould ; 5 m. Franks 

 - ^ Aquarii (1877). Closely n.p. is Lalande 42368 (7^) (7*0 Gould). 



August, 1876. I found 46 one magnitude brighter than 47 Capri- 

 corni. 46 = 5-21 H.P. 



^0. 668. K Pegasi. A double star 4, 13 : 302°-5 : 12"-1. Webb 

 found 13 more like 11 in 1852, and 13 in 1871. Dembowski con- 

 sidered it variable. 



