374 Proceedings of the Royal Irish Acadetyiy. 



No. 469. y Librae. — 4 m. Sufi and TJlTigli Beigh ; 3 Tycho Brahe ; 

 6 m. Hevelius ; 3^, 4 Lalande ; 4-5 Argelander and Heis; 4|- Armagh 

 Catalogue; 4-3 Radcliffe Catalogues (1845 and 1860); 4-4 Gould; 

 4-01 H.P. 



No. 470.— 8 Seepentis.— A double star, 3, 5 : 190°: 3"-5, 1876. One 

 of the components suspected of variation. It was rated 3-4 by Sufi ; 

 4^ and 3 by Lalande ; 3-4 by Argelander and Heis ; 3-80 Pritchard 

 (1882-467.) 3-96 H.P. 



No. 471. a CoEON^ BoEEALis. — 2 m. Sufi, Piazzi, and Harding, Ar- 

 gelander and Heis ; 2, 2^, and 1 m Lalande ; 2-69 Sir J. Herscbel {^Ca/pe 

 Ols., p. 440); 2-23 Pritchard (1883-201) Baxendell thinks that his 

 observations " indicate that the light of a Coronse is subject to slight 

 fluctuations" {English Mechanic, May 18, 1883). Sir W. Herschel 

 gives 5 (a)— 36 Bootis (e). 2-37 H.P. 



April 6, 1884, 1 estimated a Coronae about six steps brighter than c 

 Bootis. 



No. 472. /x CoEOisr^ Boeealis. — 5 m. Lalande, Harding, and Heis; 6 

 m. Pranks, 1878. Sir W. Herschel gives 11 (k)— 6 (//,), 9 (tt). 



April 6, 1884, I found jx less than k Coronae, but brighter than </> 

 Bootis. 



No. 473. T* Seepentis= Biemingham, 356. — 6 m. Lalande (28448) 

 7'5 d' Arrest ; 6 Bessel. Birmingham's observations 1872-76, vary; 

 from 6 m. to invisibility. 6-89 and 6-1 H.P. 



April 21, 1878, I found this star 7 or 7-8 m. About equal to, or 

 slightly brighter than a star s. of it (LL, 28460, rated 6 m. by 

 Hencke) ; 23rd Sept, 1878, with 3-in. achromatic, t* reddish orange, 

 and about half a magnitude brighter than the star s. of it ; May 1, 1883, 

 about two steps less than the star s. of it (with binocular). 



No. 474. Steuve 1964 Coeon^ Boeealis. — A double star, 6-8, 

 7-3: 86°-l : 15"-4. Webb suspects 6-8 of variation. It seems to be 

 Lalande 28568 and 28570 (both 8^) 



No. 475. Lalande 28590 Libe^ (= % 1966).— 9 m. Lalande. Sus- 

 pected variable by Struve, and the suspicion confirmed by Weiss, 1879. 



No. 476. Lalande 28607 Libeje. — 7 m. Lalande. Said to be 

 variable by Weiss, from 7-0 to 8-8 in a period of about 4 months. The 

 star has a considerable proper motion. 



No. 477. a Seepentis.— A wide double star, 2-5, 15 : 354°-5 : 58".9, 

 1878. Smyth calls the comes an " extremely delicate object." Webb 

 suspects it of variation. He found it "obvious with 9i-in. speculum," 

 1867, and Sadler saw it with 2i-inch achromatic, 1874. Burnham gives 

 it 12m. (1879-304). 



