Double Stars. 



207 



7530 



Greenwicli Royal Observatory. Re- 

 sults of luicioiiieter measures of double 

 stars uuule with the 1'8-iiuh refractor at 

 tiie Roval Observatorv Greenwich iu 

 tlie year 1907. M.X., 68, (^525). 



Hall. Ou/x'Herculis. A.J., 25, (102). 



Hirst. 13119. On p Eridaui. 



Innes. 13150. The binary star 

 Liicaille 7194. 



Lau. Messungen von Doppelsteriien 

 mittels Photographie. A.N., 177, (117). 



Maw. 13420. Double star observa- 

 tions, 1902-1907. 



Morgan. Measures of double stars 

 made with the 12-iuch equatorial of the 

 Morrison observatoiy. A.J., 25, (76). 



Nangle. 13510. Measures of o 

 Centauri made at Stanmore Private Ob- 

 servatory. 



■ 13512. Measures of p 



Eridani. 



Oliver <fc Wilson. Observations of 

 double stiu-s. A.X., 177, (33). 



Roe. Observations and measures of 

 double stars. A.N., 178, (169). 



Salet et Bosler. Recherches sur les 

 erreurs dues a Tequation persomielle et 

 mesures micrometriques d'etoiles dou- 

 bles. B.A., 25, (18). 



Scott. Measures of southern double 

 stars in 1907. M.N., 68, (484). 



Tebbutt. Measures of southern bi- 

 nary stars in 1907. M.N., 68, (396). 



Zurhellen. Bahnbestimmung spektro- 

 skopischer Doppelsterne nebst Beobach- 

 tuiigen von Pegasi. (Xachtrag) Die 

 Verwendung des „Hodogi-apheu" bei 

 der Bahnbestimmung. A.N., 177, (321). 



7520 LISTS. CATALOGUES. 



COLOURS OF DOUBLE STARS. 

 SPECTROSCOPIC BINARY 



SYSTEMS. SPECTROSCOPIC 

 OB.SERVATIONS OF VISUAL 

 BINARY SYSTEMS. INVISIBLE 

 COMPANIONS. DISTRIBUTION 

 IN HEAVENS ACCORDING 

 TO NUMBER, MAGNITUDE, 

 COLOUR, Etc. 



Aitken. New companions to three 

 Struve double stars. A.S.P., 17, (112). 



New companions to known 



Aitken. Three new rapid liii.arios. 

 A.S.P., 18, (227). 



■ New companions to two 



Struve stars. A.S.P., 18, (251). 



Bumham. 12625. A general cata- 

 logue of double stars within 121° of the 

 north pole. Part 1. The catalogue. 

 Part 2. Notes to the catalogue. Wash- 

 ington, 1906. [Reviews.] 



Campbell. The radial motions of 

 Polaris. A.S.P., 18, (307). 



Doolittle. 12823. Catalogue and 

 re-measurement of the 648 double stars 

 discovered by G. W. Hough. 



Doppler. Abhandlungen [betr. Lich- 

 theorie ; farbiges Licht der Doppel- 

 sterne]. (Ostwald's Klassiker der 

 exakten Wissenschaften. No. 161.) 

 Leipzig, 1907. 



Espin', T. E. New^ double stars. M.N., 

 68, (523) ; 69, 1909, (223-225). 



Frost. On certain spectroscopic 

 binaries. A.N., 177, (171). 



LudendorfiF. Beobachtungen einiger 

 spektroskopisclier Doppelsterne. A.N., 

 178, (53). 



Scliroeter. Einige Berichtigungen und 

 Ergiinzungen zu Burnham's ,, General 

 catalogue of double stars." — Berichti- 

 gungen zu Lewis ,, Measures of the 

 double stars." A.N., 178, (179, 197). 



7530 DISCUSSION OF ORBITS. 

 DIMENSIONS, MASS AND 

 DISTANCE OF BINARY 



SYSTEMS. 



Campbell. The variable radial velocity 

 of Sirius and the inclination of its 

 orbit-plane. A.S.P., 17, (66). 



Comstock. The motion of 70 

 Ophiuchi. A.N., 178, (17). 



Doberck. Elements of the orbit of j 

 Virginis. A.N., 177, (161). 



On 5 Orionis. A.N., 178, 



(363). 



On the hypothetical paral- 



double stars. A.S.P., 17, (131, 192). 



laxes of double stars. A.N., 178, (371). 



• On the orbit of j' Cancri C. 



A.N., 179, (1). 



Hall. On / Herculis. A.J., 25, (102). 



Lau. Le systeme de [I'etoile double] 

 70 Ophiuchus. B.A., 25, (139). 



