in Right Ascension . 
51 
Stars. 
JR 
1824. 
Ann. Yar. 
1824. 
Sec. Var. 
Arcturus, 
h 
14 7 40,77 
2,730 
+ 0*001 
a 1 Librae, 
14 41 1,20 
3,297 
0,016 
^ 
14 41 12,61 
+ 3,300 
0,016 
Ursae minor. 
14 51 18,91 
— 0,301 
0,111 
a Cor. bor. 
15 27 16,68 
4- 2,534 
0,002 
a Serpentis, 
15 35 39,09 
2,947 
0,006 
An tares. 
16 18 41,33 
3,658 
0,015 
« Herculis, 
17 6 40,17 
2,729 
0,004 
Ophiuchi, 
17 26 48,74 
2,775 
0,003 
y Draconis, 
17 52 32,61 
1,390 
0,004 
a Lyrae, 
18 31 0,73 
2,028 
+ 0,002 
y Aquilae, 
19 37 56,22 
2,853 
— 0,001 
a. 
19 42 14,49 
2,927 
0,001 
0 
19 46 42,82 
2,948 
0,001 
a 1 Capricorni, 
20 7 56,33 
3,331 
0,008 
a 2 
20 8 20,14 
3,335 
— 0,008 
« Cygni, 
20 35 27,90 
2,038 
+ 0,002 
a Cephei, 
21 14 23,68 
1,440 
— 0,006 
fi 
21 26 21,92 
0,812 
0,032 
a Aquarii, 
21 58 47,45 
3,083 
0,004 
F omalhaut, 
22 47 57,63 
3,338 
— 0,022 
« Pegasi, 
22 56 2,84 
2,979 
+ 0,005 
« Andromedae, 
23 59 21,43 
+ 3,076 
+ 0,018 
The above Right Ascensions are, in their mean quantity, about 0",2 less 
than those of M. Bessel ; and about 0",3 less than those of Mr Pond. The an- 
nual variation is determined by comparing this catalogue with Bradley’s cata- 
logue in the Fundamenta Astronomies. 
Mean error of the catalogue in JR, in space , by observations of the Sun in 
Spring and Autumn, with the 8-feet astronomical circle : 
Days 
obs. 
Spring 1823, n } + 0,40 + 0,04 d L _ 0,06 0,0? d O 
Spring" 35 U } - °’ 62 - «.l 1 «* L + 0,10 dr + 0,14 d O 
Spring " lift W } + °’ 34 + °’° 4 d L + °' 10 * ■ -°’ 16 rf ° 
Mean error of Catalogue — + 0,04 — - 0,01 + 0,05 dr . — 0,03 d O 
where dL — error in latitude, dr == error in constant of refraction. dO = 
error in obliquity of ecliptic. 
The small coefficient of dr shows that the error arising from the errors of 
division must be absolutely insensible. 
