Gore — On Knoion Variable Stars. 



203 



M. Ceraski's comparison stars are :- 

 R.A. 1856. Decln. 



21 7 33 ... . 67 

 21 10 15 ... . 69 



21 12 11 ... . 69 



1855. 



Mag. 



40' . . 



. . 7-0 



54 . . 



. . 8-7 



51 . . 



. . 6-8 



27 . . 



. . 6-5 



176. T Capeicoeni. — The Elements, according to Schonfeld, well 

 represent 8 maxima since 1855, and an observation at Markree Castle, 

 1850, August 5. A 9 m. np. 



177. S. Cephei. — -According to Schonfeld, only regularly observed 

 by "Winnecke, from whose observations of minima the following Ele- 

 ments would result : — 



Ep. E. = 1866. 2. 12-4 + 487'^-l E. 



But other observations would seem to require the period given in the 

 Catalogue. Winnecke finds that the maxima occur approximately 

 240 days after the minima. 



178. Nova Ctgni (1876). — Discovered by Schmidt at Athens, near 

 p Cygni, on the evening of November 24, 1876, when it was 3 m., 

 and rather brighter than rj Pegasi. It rapidly decreased, however, 

 and on November 30 had descended to the 5th magnitude. The 

 following estimates of magnitude, determined by Schmidt, will show 

 how rapidly it faded : — 



^ov 



^24, 



}J 



25, 



!> 



26, 



)> 



27, 



}) 



28, 



>> 



29, 



}} 



30, 



)ec 



. 1, 



>) 



2, 



}} 



3, 



n 



4, 



)> 



5, 



)) 



7, 



)) 



8, 



}> 



9, 



;) 



10, 



>j 



11, 



I ) 



12, 



,, 



13, 



^, 



14, 



>7 



15, 



magnitude. 



1 



1 



2 



8 



7 „ 







2 



4 



9 ,, (hardly visible to the naked eye). 

 ,, (visible so for the last time). 



