400 Proceedings of the Royal Irish Academy. 



]S'o. 655. Lacaille 8768 Indi. — 7 m.Lacaille; 6-7 Cape Catalogue 

 (1876-75). The Cordoba estimates (1871-74) range from 6-1 to 7-3, 

 and Gould considers establish the variability of this star. 



1^0. 656. P XXI., 87 Capeicohni (= 7413 B.A.C = LL 41494).— 6 m. 

 Lalande, Lacaille (8794), Argelander, Heis, and Behrmann; 6-7 

 Honzeau; 6-0 Gonld ; 7 Franks, "orange," October 4, 1877; 6 m. 

 Cape Catalogue (1878'68). It is not in Birmingham's Catalogue. 

 Harding shows a 6 m. star, with a 7 m. closely s.f. The 6 m. star 

 seems to be Lalande 41494, and identical with 7413 BAG. 5-82 H.P. 



Ko. 657. y Patonis.— 31 Lacaille (8778); 3 m. Gilliss (1851); 

 4-0 Ellery (1868); 4-5 at Cordoba; 4-3 Cape Catalogue (1873-62); 

 4-09 Sir J. Herschel, who says, " Yery doubtful or variable"; his 

 estimates make y 0-47 m. brighter than ^ Pavonis, whereas Dr. Gould 

 makes it 0-3 m.. fainter. 



Iv"o. 658. 1 Pegasi.— A double star 4, 9 : 310°-8 : 36"-4. Smyth 

 says, "4 considered variable" {^Bedford Catalogue., p. 499). It is 6, 4 

 and 4J Lalande (41545-8), and is 4 m. in Harding'' s Atlas; 4-5 Heis ; 

 4 Pranks, October 5, 1877 {private letter'). It was measured 3-4 by 

 Johnson with the heliometer, 1851. Sir W. Herschal found 24 (i)- 1 , 

 10 (k) and 1* 9). Pritchard 4-30 (1882-645). 4-28 and 4-4 H.P. 



jSTo. 659. 33 Capeicoeni. — 6 m. Lalande (41543) ; 5-6 Argelander; 

 6-5 Heis and Behrmann; 5-7 Gould (red). Sir W. Herschel gives 

 36, 33, 35 and 41, 33 and 28, 33, 35. Chacornac found it "sometimes 

 brighter and sometimes fainter than a star of 7 magnitude near it." 

 It is JSTo. 581 of Birmingham^ s Catalogue of Red Stars. 6 m. Franks, 

 October 3, 1877 (35 = 61 m.), {private letter). 5-59 H.P. 



In August, 1875, I estimated it 6|^m. 



In August, 1876, it seemed about 6 m., and slightly brighter than 

 35 Capricorni, but much less than 36. About the same magnitude in 

 October, 1876. 



^0. 660. 18 Aquaeii. — 6 m. Lalande, Harding, and Heis; 5-7 

 Gould. Suspected variable by Pierce at Harvard. 

 Sir W. Herschel gives 6 (/x) ,18,7. 5-38 H.P. 



No. 661. y Indi. — 4|- and 5 Lacaille; 6 Behrmann; 5-6 Cape 

 Catalogue (1875-70). The Cordoba estimates vary from 6-0 to 6*6, 

 and Gould says "it seems clearly variable" {Uranometria Argentina, 

 p. 247). 



No. 662. BiEMijfGHAM 584 Cygni. — 11 mag. ruddy star in cluster, 

 Schjellerup; 9 m. Secchi, who says "must be variable," (Notes ta 

 Birmingham'' s Catalogue, p. 323). 



No. 663. ^ Cephei. — 4-3 and 3-4 Sufi; 3m. Harding and Heis; 

 3-45 Sir J. Herschel (y Cephei = 3-48); 3^ Pranks, October 14, 1877. 

 Sir W. Herschel gives 35 (y)-, 8 (^)-, 32 (t). Schmidt considers this 



