366 Proceedings of the Royal Irish Academy. 



'No. 408. LiCAiLLE 5601 or 5602 Cei^taijei. — In the Cape Cata- 

 logue, 1881, Stuve remarks : — " Only one seventh magnitude was seen 

 near this place, although two stars, Lacaille 5601 and 5602, were ob- 

 served by Lacaille on 1752, February 12." 



l^^o. 409. 65 Hets Cakts Yexatici =B.A.C. 4545. — 6 m. Lalande 

 (25157); 6 m. Harding; 6 Heis ; 6-88 Peirce, who says: — "Arge- 

 lander and Heis make this 5'8 ; I, 6*9. They make it equal to 60 

 Heis; the DM makes it 0*3 fainter ; and I 0'7 fainter. Argelander ; 

 and the HIT make it equal to 73 Heis ; Heis makes it 0"5 brighter; 

 and I, 0-1 fainter." 6 m. Pranks, April 7, 1878. 



March 23, 1884, 1 estimated it 6*9 m., one step less than 73 Heis. 



JSTo. 410. Lalajnde 25224 YrRGrs-is. — G m. Lalande ; 7 Bessel; 5-7 

 in DM; 5 Argelander and Heis: 5-3 Gould (at Albany) and 5-9 at 

 Cordoba. Suspected variable by Gould, although included in his 

 " Standards of Magnitude " ( V. A., p. 29). 5-60 and 5-4 H.P. 



1^0.411. ViEGLNTS. — One of Pigott's suspected variables. He says 

 {Phil. Trans., 1786) : — ^" This star, which is marked by Eiccioli of the 

 6th magnitude, could not be seen by Maraldi in 1709 ; nor was it of 

 the 9th magnitude, if at all visible, in 1785." It is not in Lalande's 

 Catalogue, or Harding's Atlas. 



1^0. 412. 83 Urs^ Majoris. — 5-6 Heis. Seen by Birmingham as 

 bright as S Ursae Majoris, or 3-7 m., Aug. 6, 1868. Bii-mingham 

 says : — " It was smaller on the next night, and slowly diminished to its 

 usual magnitude." He calls its colour "fine oransie." 4"83 and 5'1 

 H.P. 



Jan. 28, 1878, I found 83 brighter than Alcor (80), and 84 TJ. 

 Majoris ; Jan. 31, 1884, 83 five or six steps brighter than 84, and about 

 seven steps brighter than 81 ; Feb. 7, 1884, 83, three steps less than 

 Alcor (80). 



No. 413. T Boons.— A double star, 4-8, 11-4 : 347°8 : 10"-3. 11-4 

 is a suspected variable. "Ward saw it with 4 ^o inch achromatic, and 

 Sadler found it easy with 6|- in. speculum. 



No. 414. V Ce>"iatjei. — 3^ m. Lacaille ; 3-7 at Cordoba. Dr. Gould 

 suspects variation fi'om 3-3 to 3-7. 



Xo. 415. 7] TJes^ Majopjs. — 2-18 Sir J. Herschel {Cajje Ohs., d. 

 440) measured 2-01 by Pierce {Harvard Annals, vol. ix.). Several 

 observers have suspected a slight variation ; 1-75 Pritchard (1882'957). 



No. 416. 2 (g) Centaxtei.— 4 m. Lacaille; Sir W. Herschel 6-2; 

 4-6 Gould. The Cordoba estimates vary from 4-5 to 5-1, and Gould 

 says " show it to be probably variable by about half a unit. The colour 

 appears also to vary, as it has repeatedly been noted as reddish, and on 

 other occasions found without any marked tinge." 



