Tables relating to the preceding papers. 
7 i 
TABLE XI. 
a Lyrce compared with y Draconis. 
No. of Ob 
y Draconi 
No. of Ol 
a Lyras. 
0 /II 
i8iz 
Summer 30 - - - - 24 - • 
- - 
12 53 5 6 >77 
1813 
Summer 36----40-- 
- - 
12 53 5 6 >77 
Mean of 2 years - - 
- - 
12 S3 56,77 
1812 
Winter 16 - - - - 23 - - 
- - 
12 S3 57,02 
1813 
3 
5 
rt 
<T> 
•1 
1 
1 
1 
1 
Os> 
0 
1 
1 
- - 
12 S3 56,80 
Mean of 2 years - - 
- - 
12 53 56,91 
Double Parallax of a Lyras 
- - 
- - 0,14 
1 822 
Winter 24 - - - 30 - - 
- + 
12 53 24,7 
1822 
Summer 50 - - - 25 - * 
- - 
12 53 24,7 
1823 
Winter 40 . - - 27 - - 
- - 
12 53 24,7 
Double Parallax of a . Lyrae 
- - 
- - 0,0 
Explanation of the preceding Tables. 
Table I. The predicted catalogue in this table is obtained from 
the Greenwich Catalogues of 1756 and 1813: all the computa- 
tions will be found at length in the volume of the Greenwich 
Observations for 1820. The five groupes of stars in the last 
column are those referred to in page 42. 
Table II. is the same catalogue arranged in the order of right 
ascension. 
Table III. is an interpolated catalogue : it was computed some 
time since from a catalogue less perfect than the present, but 
it is sufficiently exact to show that no explanation of the difficulty 
can be obtained by supposing any defect in the observations of 
1813. The numbers in this table under the columns Dublin and 
