CATALOGUE OF BINARY STARS. 



223 



70 Opiiiuchi. 



2 2272. 



E. A. 17^ 5$^ 37^ 



Dec. N. 2° 32' 30". 



Mags, a =4-|, 6 =7. 

 Colours: Smyth, 1842, pale topaz, 

 violet; Webb, 1850, yell. -orange ; 

 Main, 1861, bright yell., reddish; 

 Dembowski, 1863, yell., rose-col. 



Epoch. P. D. 



Herschel. 



Struve. 

 South . 

 Smyth. 



Dawes 



Main 



Dembowski 

 Secchi 



177977 

 1804-41 

 1819-63 

 1825-56 

 1835-56 

 1842-55 

 1852-44 

 1859-72 

 1861-46 

 1863-06 

 1863-51 

 1865-41 

 1866-60 



90-00 

 318-48 

 i68"42 

 148-18 

 130-60 

 122-40 

 114-90 

 109-33 

 107-30 

 104-96 

 104-07 

 102-69 

 IOI-I3 



3-59 

 2-56 

 4-66 

 4-76 

 5-97 

 6-64 

 6-50 

 ,6-24 



5-89 

 5-66 

 5-28 



5-40 

 5-27 



Perihelion passage, 1 806. 



a Lyr^. 



E. A. jS^ 32™ 20^. 



Dec. N. 38° 39' 15". 



Mags, a =j, b —IT. 

 Colours: Smyth, 1843, p. sapphire, 

 smalt-blue. 



Herschel 1792-32 116-14 42-99 



South 1822-87 132-07 42-11 



Dawes 1830-42 1 35-03 42-46 



Smyth 1837-51 137-90 42-70 



,, 1843-34 140-30 43-40 



Secchi 1857-55 148-70 45-50 



Dembowski .. 1865-63 150-12 46-15 



e^ Lye^e 4. 



S 2382. 



E. A. iS^ 29^ 51^ 

 Dec. N. 39° 31' 43". 

 A:B. 



Mags. « =5, 6 =6|. 

 Colours : Smyth, 1 842, yell., ruddy : 

 Webb, 1 849, yellow, tawny. 



Herschel. 

 Struve.... 

 Smyth. . . . 



Secchi 



Dawes 



Main 



Dembowski 



1779-83 



33-55 



1831-44 



26-06 



1842-59 



20-6o 



1853-71 



19-70 



1856-23 



22-42 



1859-73 



19-32 



1861-45 



20-23 



1863-09 



19-35 



3-54 

 3-03 

 3-20 



3-00 



3-07 

 3-06 



3-06 



3-04 



6^ LyRvE 5. 



S 2383. 



C:D. 



Mags, c =5, <^ =5^. 

 Colours : Smyth, 1 842, both white ; 

 Webb, 1849, both yellowish wh. ; 

 Main, 1861, both white. 



Herschel. 

 Struve.... 

 Smyth.... 



Secchi 



Main 



Dembowski 

 Dawes 



Epoch. 



1779-83 

 1831-44 

 1842-59 



1853-71 

 1856-06 

 1861-45 

 1863-09 

 186575 



173-28 

 155-10 

 150-90 

 148-10 

 148-40 

 152-39 

 143-97 

 144-86 



D. 



3-50 

 2-57 

 2-60 

 2-50 

 2-57 

 2-43 

 2-47 

 2-56 



Smyth (Spec. Hart. 1853) considered 

 that the relationship between e 4 

 and 5 JjjvsQ was not yet established, 

 but that they have a common move- 

 ment in space. 



S 2402 Serpentis. 



E. A. (i860), 1 81' 43°^ o^ 

 Dec. N. 10° 32', 

 Mags, a =S,b =Si. 

 Colours: Secchi, 1856, both white. 



Struve.. 

 Madler 

 Secchi . . 



1830-20 

 1838-83 

 1856-64 



197-67 I 0-74 

 204-31 0-69 

 213-41 1 0-89 



P. XVin. 274 Antinoi. 2 2434. 



E. A. iS^ S5"'48^ 

 Dec. S. 0° 53' 56". 



A:B. 

 Mags, a =9-2, b —g. 

 Colours: Smyth, 1838, both white. 



26*09 

 25-56 



25-45 

 25-60 

 24-48 

 24-29 



Struve 



1822-67 

 1831-57 

 1835-53 

 1838-59 

 1856-93 

 1864-66 



149-06 

 147-02 

 145-78 

 146-80 

 138-87 

 136-85 





Madler 



Smyth 



Secchi 



Dembowski .. 



B:C. c =16, blue. 



Struve [1831-57 



Smyth 1838-59 



1857-12 

 1864-66 



Secchi 



Dembowski 



80-50 

 85-00 

 68-70 

 69-60 



1-93 



2-0O 

 1-73 



2-79 



