I 



Gore — On Suspected Variable Stars. 409 



No. 720. Lacaille 9535 Phcen-icis. — Dr. Gould thinks that this star 

 Las probably increased in light since the time of Lacaille, who rated 

 it 5^ and 6. The Cordoba estimates were 4-3 to 4-6 {U. A., p. 270). 



1^0. 721. t Andromeda. — Hated 4-3 by Sufi; 4m. and 5m. by 

 Lalande ; 6 m. by Harding ; 4 m. by Argelander and Heis ; 7 m. by 

 Piazzi ; and 3-4 and 7 m. by d'Agelet. Sir W. Herschel found X-l,k. 

 It was measured 4*44 by Peirce {Harvard Annals, vol. ix.). My own 

 observations since May, 1875, show well-marked fluctuations in its 

 light, to the extent of about half a magnitude. It is sometimes dis- 

 tinctly brighter than its neighbour, k Andromedaj, and sometimes quite 

 as distinctly fainter. The observations, however, do not seem to sbow 

 any regular period. The star is usually about one or two steps less 

 than K Andromedae, but I have seen it nearly three steps hrighter than 

 K on several occasions during the years 1875-1884 (a step being about 

 "iV of a magnitude). Pritchard gives 4-58 (1882*677), k being measured 

 4-34 on the same date. 4-30 and 4-1 H.P. (k- 4-42 and 4-1). 



ISTo. 722. y Cephei. — 4 m. Ptolemy and Sufi ; 3|- Lalande ; 3-4 

 Argelander and Heis ; 3-48 Sir J. Herschel. Sir W. Herschel found 

 35 (y) - , /3 (or y about ^ a mag. brighter than /5) ; 3*51 Pritchard 

 (1882-841. From comparisons with ^ Cephei in 1882 and 1883, Gem- 

 mill considers y variable to a small extent. 3-37 and 3-5 H.P. 



jSTo. 723. 104 Aquaeii.— 41 and 5 Lalande ; 4 Heis. Sir W. Her- 

 schel found 104 - 103 ; 5*0 Gould. 4-78 H.P. 



In December, 1875, and September, 1877, I found 104 brighter 

 than 103. 



J{o. 724. Lalande 46442 PrscitiM. — 7m. Lalande; 6|- Bessel; 6-5 

 DM ; 6-7 Heis ; 5*9 Gould, who suspects variation, although he includes 

 it in his Standards of Magnitudes {JJ.A., p. 36). 



IN'o. 725. 8245 B.A.C. Andromeda.— 7 m. Lalande (46462) ; 6-7 

 Heis; 7 m. Franks, 1877. 



No. 726. 0)2 AauAKTi. — 5 m. Ptolemy, Sufi, and Harding. Wot in 

 Lalande' s Catalogue ; 4-5 Argelander ; 5 Heis. Sir W. Herschel cu^, w^ ; 

 5 m. Franks (= a)i), Oct. 29, 1877. 



In December, 1875, and September, 1877, I found it brighter than 

 o)^ Aquarii (5-4 Heis). 



No. 727. Lalande 46504-8 Pegasi = 78 Pegasi. — Eated 4^, 5^, 

 and 6 m. by Lalande ; 5 m. Harding ; 5 Heis ; 4-93 H.P. 



No. 728. 107 AQTJAKn. — 6 m. Lalande and Harding; 5-6 Heis. Sir 

 W. Herschel gives 106, 107, 108 ; 5-4 Gould. I foundlo7 equal to 106 

 Aquarii in Dec. 1875. 



No. 729. 19 PiscitJM.— 6 m. Lalande (46575); 5 Harding; 6*2 Arge- 

 lander ; 6 Heis ; 6 m. Birmingham (No. 648), "red orange"), Sept. 17, 

 1873, and Sept. 16, 1876; 6 m. Franks ("fiery red"), Oct. 29, 1877. 



