KOTE otf THE NEW STAR. 55 



Tabular statement of light variations of Nova Persei, as given by 

 observers at Kensington, communicated to the Royal Astronomical 

 Society by Sir Norman Lockyer : 

 1901. 



March 5th . . 2"j 



6th .. ..2-9 



9th .. . . 3-5 



loth .. 37 



nth .. 4-0 



,, i2th .. . . 3-8 



2ist .. 4-2 



,, 22nd . . . . 



23rd .. 4-2 



24th .. 4-5 



25th .. ..5o 



The star has been long invisible to the unassisted eye, but its 

 place is being carefully watched by many competent observers in 

 hope of a possible revival. 



Sir Norman Lockyer gives the following general description 

 of its spectrum : 



" The photographs show that the bright hydrogen lines are 

 successively feeble as the ultra violet is approached. The 

 spectrum extends far into the ultra violet. Also, that there 

 have been changes in the photographic spectrum." 



The following metals are reported as being certainly 

 detected : Fe., Ti., Ce., Ca., Sr., and Se. The iron lines were 

 very distinct. Colour At discovery it was bluish white. During 

 the period of decline it assumed a reddish hue. These changes 

 in colour have been reported in the case of other Novea. 



Full particulars of the spectrum are given by Sir Norman 

 Lockyer in the "Monthly Notices" of the " Royal Astronomical 

 Society, also by other observers. 



It is hoped the discovery of Nova Persei by Dr. Anderson will 

 induce others to watch for Novea. 



