S64 Proceedings of the Royal Irinh Academy. 



]S"o. 391. - ViEGiNis. — " Bayer's star of 6th magnitude, 1° south of 

 g Yirginis." Suspected variable by Pigott, who says, " This star is 

 not in any of the nine catalogues that I have. Maraldi looked for it 

 in vain, and in May, 1785, I could not see the least appearance of it. 

 It certainly was not of the 8th magnitude." It may possibly be either 

 Lalande 24283-4 (7^, 9^) orLalande 24393 (7^). The latter answers 

 butter to Bayer's description, but the position of the former agrees 

 more closely with the place given by Pigott (R.A. 12'^ 53, S. 10° 00 

 for 1786). 



No. 392. Lacaille 5397 Centatjei. — 6^ Lacaille ; 8 Brisbane ; 

 6 m. Taylor ; 5-2 Yarn all ; 6*3 Gould. The Cordoba estimates show 

 discordances of 0'6 magnitude. 



1^0. 393. x]/ Htdrje. — 6 m, Lalande ; 5 m. Heis and Behrmann ; 5-3 

 Gould ; 5 m Franks, 1876, and 6, 1878. 5-13 H.P. 



Ifo. 394. 50 Yirginis.— 9 and 7 m. Lalande (24434-6) ; 7 Hard- 

 ing; 6 Piazzi ; 7 m. Argelander ; 6'2 to 6'5 at Cordoba {tfranometria 

 Argentiria, p. 319). 



ISTo. 395. Lacaille 5412 Centaxjri. — 7m. Lacaille. "Mr. Thome 

 is confidant of having seen this star at the magnitudes 6"7 and 7*2, as 

 Avell as at intermediate degrees of brightness" ( Uranometria Argentina, 

 p. 267). 



No. 396. -Yirginis. — About 40' s/ 53 Yirginis. l^ot'va. Lalande' s 

 Catalogue^ or Harding'' s Atlas. Suspected by Olbers in 1797 to be 

 a remarkable variable. He found it the brightest star in the imme- 

 diate vicinity of 53 Yirginis. In July and August, 1876, Tebbutt, 

 at Windsor, N. S. W. estimated it at 8^ m. On May 10 and 11, 1876, 



I found it 9 m., and equal to Lalande 24421 (Olber's star c), but 

 brighter than Lalande 24597 (Olber's star d) (See Nature, April 13, 

 1876). Lalande 24597 seemed to be about 9^ or 10 m, though rated 



I I m. by Olbers. 



No. 397. Lacaille 5460 Centauei. — 7 m. Lacaille. Dr Gould 

 says, " is a red star, which seems to be variable between the limits 7™ 

 and 71-'"." 



No. 398. y HYDRJi.— 4-3 Ptolemy; 3-4 Sufi; 3 Tycho Brahe, 

 and Hevelius, Argelander and Heis ; 4 m. Armagh Catalogue ; 3*46 

 Sir J. Herschel i^Cape Ohs., p. 433) ; 3'2 Gould. Birmingham, in the 

 notes to his Catalogue of Red Stars, says, May 9,1869: "5 mag. at 

 most; yellow, with lines in the green Sugli S2Mri,^^ &c., Margo, 1872. 

 Type II. : Imes and zone var — Prodromo, &c., 1876. 3*35 H.P. 



No. 399. Struve 1734 Yirginis. — Lalande 24747 ; 7 m. Hencke; 

 6-7 Gould. A close double star, 7-2, 7-9 : 198°-1 : 0"-7. Secchi sus- 

 ];ected the smaller component of being "changeable" {Gel. Ohj. 

 p. 41 1). 



