58 A. W. Roberts.—Catalogue of Variable [March 30}. 
(20) Carin (L. 4179) 
R.A. 105- 4™- 308 
Dec. — 619° 41°0 
This star was constantly used as a comparison star for S Carine.- 
Its usual magnitude is 6°9, equal to L. 4224. In February its: 
magnitude suddenly increased half a magnitude, and it is now 
between L. 4153 and L. 4066 or 6°4 mag. The star has been so- 
constantly used that there can be little doubt as to its variation. 
(21) S Carinz# (L. 4189) 
R.A. 108°5™: 525 
Dec. — 61°:0'6 
A variable discovered at Cordova. At a maximum it becomes: 
visible to the naked eye and at a minimum it is between the 9th: 
and 10th mag. In Mr. Gore’s catalogue the periodic time is entered 
as seven months. This is an error. A careful examination of all 
the measures taken here, nearly one hundred, gives a period of 145- 
days. A maximum took place on June 27th, 1891. The star is- 
quickly increasing in magnitude and a maximum may be expected: 
in April. 
(21a) g CaRInz 
BRA, 108° 12m" 55° 
Dec. — 60° 42'°5 
This star was suspected of variation by Dr. Gould. In May, 1891, 
it was greater than p Carine or 3°4 mag. It is now decidedly 
fainter, being almost equal to « Carine or 3°7 mag. 
(22) » Arcus (L. 4457 
R.A. 105: 40™: 478 
Dec. — 59°:63 
This famous variable has not varied during 1891. Its magnitude 
now is 7:0 or 6°9. It can be seen with the naked eye but no doubt 
this is because of the combined brilliance of the nebula and star. 
(23) T Carine (L. 4530) 
BA 1O8- 502 508 
Dec. — 59°°56"0 
The variation of this star was suspected at Cordova but the limits 
of its variation—four-tenths of a magnitude—are so small that it 
ought not to be included among the better known variables. Several 
