604 Table 759 



RIGHT ASCENSION, DECLINATION INTO GALACTIC COORDINATES 



Condensed from Tavole calcolate dal Emanuelli (1929), Secretario della Specola Vaticano. 

 Galactic pole, R. A., 191. i°, dec. +26.6° (Newcomb, 1904). The zero point of the tables 

 takes the longitude of the solar apex as o° (R. A., 270 , dec, +30 , 1900). To reduce the 

 galactic longitude as reckoned from the intersection of the galactic plane with equator, 

 add 23. 6° to "Long."; as reckoned from a Cygni (proposed by Int. Astron. Union, 1925), 

 add +27.9, 1900, (+23.7, 1930). 



N. B. — The reductions for plus and minus 90° are independent of the right ascension and 

 declination and respectively: 66°. 4, +26°.8 and 246°.4, — 26°-9. The Galactic pole has been 

 variously taken : Newcomb I2 h 44 m , +26°.6; Gould, I2 h 42 m , +32 ; Searle, I2 h 40 m , +28 , 

 for tables of conversion see Harvard Annals, 56, 1912; Kapteyn, I2 h 4i m , +27°.3; Van 

 Rhijn, I2 h 56 m , +25 , for tables, see Groningen Publications, 43, 1929. 



Smithsonian Tables 



