and the Absolute Size of the Fixed Stars. 
230°1) 8 
232-7/15] 6 
233-313 
232513 
232:2/12 
2341/21 
234°8/12 
| 2360/12 
236:4)18 
236:0/17, 
2381/21 5 
238:0/17 5 
ei 5 
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=) |S\s 
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° FS a 
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2), | 3/2 
es Avo |e 
naa | 210 
o8 1o|2 
BS jnlo 
eM Sle 
So |v] 
ZF SE 
a | 3/5 
< |2/4 
Magnifying Power. 
152 
162 
152 
& |3 i | g | 
e 3 z 3 | E 
Ten | ear eal) ere 
2 lzi2\e| = 
S |sl | 3 
oS Is io) sg z 
S leis} S| 3 
8 \Si¢\6| & 
2 Si) 3 # 
A Flaie) 
11-03| 914] 87,1—2:5 
11:03} 4) 4] 87;)1—3 
11:09 | 5|4/152;1-3 | 
10-70 |12}4| 87;1—3 | 
10:12| 8|4| 87)1—3 | 
9°47 |19|6| 87 1—3 | 
9:40 11) 4| 871-3 | 
9:27 |, 8] 4} 87} 1-3 | 
9°67 |14| 4| 87)1—3 | 
9-30 |18}4) 87 1—3 
9°35 |14) 4| 87)1—3 
9:00 |10| 4/152, 1-3 © 
9°47 |11| 4] 87)/1—3 | 
9°64 |11) 4 |152)1-3 | 
981/13) 4 1521-3 | 
3:25 |14/4| 871-3 
8:25| 8|4| 87)1-3 | 
7:96 |13| 4 |152,1—3 
8:31 |10 4 152;1—3 
8'12|11)4/152)1—3 | 
8:03 /14|4 152)1—3 | 
7°95 |16| 4/152 1—3 | 
8-03 |14) 4152 1-25 
8-07 |14) 4|152 1-25 
7:78 \14) 4/152 125 
7-89 |16 4 {162 1—2°5, 
Date. 
1846, “17 
1848, -00 
05 
“05 
VOL. XLVI. NO. XCVI.—APRIL 1850. 
305 
periaster, actually 2° 40’ per day ; that it is but a very short space 
of time on the eastern side of its primary, and when at its aphaster 
on the west, moves again with proportionate slowness, and so is seen 
there for a long period with hardly any sensible alteration of place. 
The time of revolution seems to be as short as 77 years; and La- 
caille and Maskelyne’s observations, which had before appeared 
somewhat anomalous, are fully reconciled, as belonging to a former 
revolution ; indeed the small star seems to have been almost in 
precisely the same situation with respect to the large one when ob- 
served by Maskelyne in 1761, as it appeared to Sir J. Herschel in 
1838 ; and had observations been continued for twelve years after 
Maskelyne’s time, our knowledge of sidereal astronomy might have 
been almost a century in advance of its present position. 
Captain W. S. Jacob’s Observations of «a! and a? Centauri (A.R. 14 
29-5™, N.P.D. 150° 12’), made at Poonah, Lat. 18° 31’ N., Long. 
4> 55m 42s E., with a Five-Feet Achromatic Telescope. 
Remarks. 
do. 
definition tolerable. 
daylight; dancing. 
daylight ; definition tolerable. 
do, 
do. 
do. good. 
do tolerable, 
do. do. 
do. 
flaring 
do 
definition tolerable. 
daylight ; definition tolerable. 
do. do. 
do. very good. 
do. do. 
do. fair. 
do. excellent. 
do. do. 
do, do, 
do. good. 
do. do. 
do. do. 
do. slightly tremulous. 
U 
