35 
“Observations of the new variable star, T Coronse,” by 
Joseph Baxendell, F.RA.S. 
While engaged on the night of the 15th of May last in 
observing some of the naked eye variables, my attention 
was suddenly arrested by a strange and rather conspicuous 
star about a degree distant from s Coronse in the south 
following quadrant. It was at once carefully compared 
with some of the neighbouring stars in order to ascertain 
its magnitude exactly, and a rough determination of its 
position was made, which led me to conclude that it was 
identical with Argelander’s No. 2,765 of Zone + 26°, 9 5 
magnitude, of the Bonner Sternverzeichniss, a conclusion 
which was fully confirmed the following night by more 
exact observations. On the night of the 7th of May I 
observed all the naked eye variables then visible, and also 
several telescopic ones, and among the latter It and S 
Coronse, but this star, if at that time really visible, entirely 
escaped my notice ; and as the nights between the 7th and 
15th were cloudy at Manchester, I am unable to say at 
what date it attained its maximum brilliancy. My obser- 
vations of its magnitude, colour, &c., from the date of 
discovery to the present time are as follows, and I may add 
that all determinations of magnitude after the star became 
invisible to the naked eye were, with only three exceptions, 
made at Mr. Worthington’s observatory with his equatorially 
mounted achromatic of five inches aperture, care being taken 
to use always the same eyepiece, a positive, having a mag- 
nifying power of 68 times. 
Obseevations of T Coeonje. 
Date. 
Mag 
Colour, &c.. 
1866. 
May 15 
3-7 
White, with a very slight yellow tinge, whiter than e. 
16 
4-2 
Cream coloured, but the light very bright, and star well 
17 
4-9 
defined, without any hazy appearance. 
With naked eye. Cream-coloured, exactly similar to e. 
5-1 
With 5in. Ach. p. 68. 
