and positions 0/458 double and triple stars , &c. 
47 
No. CCCCXLI. R. A. 3 h 43 ra ; Decl. 31 0 20 ' N. 
£ Persei ; Struve, 108 ; VI. 96. 
Quadruple ; A 4 th, B 12 th, C 15 th, and D of the 13 th mag- 
nitudes : all south preceding. B is decidedly blue ; bears 
a much better illumination than C or D ; and D bears more 
than C. 
Measures of A B. 
Passy ; December 22, 1824 ; Seven-feet Equatorial. 
4 ° | Difficult. 
•577 3 
This star B seems to have escaped the observations of Sir William Herschel, 
a circumstance which is rather singular, seeing that it is brighter than either of the 
more distant stars, whose situations relatively to £ have been determined by him. — 
Is the star B variable in point of lustre ? The stars between the clouds are magni- 
ficently bright, and are unusually steady, although the wind, which during the last 
thirty-six hours has been tremendously high, threatens every moment to carry away 
the roof of the observatory. The shutters are only separated from each other by a 
space equal to the diameter of the object end of the telescope. 
Position — 65° 47 ' s p I 5 Obs. Diff. =: 3 0 
Distance zz 12". 825 | 5 Obs. Diff. — o" 
Passy ; December 23, 1824 ; Seven-feet Equatorial. 
4 th and 12 th magnitudes. 
Position 64° 53 ' sp 
Distance 13". 767 
5 Obs. 
5 Obs. 
Diff.= i° 27' 
Diff. 2= o".72i 
| Very difficult. 
Night very fine, but of A C no measures can be procured; and these of A B just 
obtained were attended with much greater difficulty than were those of last night ; 
should therefore the two sets differ, those of last night must have the preference. 
Passy ; January 19, 1825 ; Seven-feet Equatorial. 
4 th and 12 th magnitudes. 
Position = 64° 33' sp | 6 Obs. J Diff. = 2 0 45'. Very difficult. 
To night I should certainly say that the nearest star B was not so distinct with- 
out illumination as either of the more distant stars, nor does it bear illumination so 
well as the distant star D ; but still allows much more of it than C. Are any of the 
group variable ? The angle of position of A B was this evening gotten with consi- 
derable difficulty. The night is very fine. 
