the Places of Fixed Stars. 

 Table [continued). 



271 



The places of the stars ought strictly to be corrected for the 

 daily aberration, before they are compared with the observa- 

 tions. 



If + ^ is the eastern hour angle, <$ the altitude of the pole, 

 8 the declination of a star ; 



The correction in right ascension is + 0"-021 



cos ^ . COS t 



time. 



The correction of the declination is 



— 0"-31 cos ip.sin f .sin 8 in seconds of a degree. 

 For the superior culmination we have 



du = + 0"-021 cos ^ . sec 8 in time, dZ = 

 For the inferior culmination we have 



da= — 0"-021 cos (p . sec 8 in time, J 8 = 

 that is to say, the observations must be thus corrected : 

 Sup, Culm. — 0"-021 cos <^ . sec 8 

 Inf. Culm. + 0"-021 cos f . sec 8. 



[I laving now given whatever is susceptible of translation in Prof. Encke's 

 Enliemcris for 1S30; we hope in sonic future Nunihcr to be able to give 

 wliat IS interesting from the volume for lH;il, which has lately been pub- 

 lished. — Edit. J 



XL. Some 



