AT THE OBSERVATORY AT PARAMATTA, 
13 
Canopus (Mean of several Observations about February 21). 
1823. 
Barom. 
Therm. 
’Observations. 
Micrometer not corrected. 
Refrac- 
tion. 
I. 
II. 
III. 
IV. 
Feb. 21 
inches. 
30.00 
29-83 
6°9.3 
74.5 
direct 
by reflect. 
O / // 
75 19 27.8 
292 53 49 
/ // 
20 22 
54 38.7 
19 57.4 
54 25.3 
19 47.1 
54 11.8 
18.9 
18.5 
Half sum — Horizon 184 6 38.1 
Half Diff. — Altitude 71 12 49.4 
From Mean of 4 Microscopes. True Alt. 71° 12' 29 
Lat. 33° 48' 50".7. 
7 30.1 
12 51.65 
"•99. Tr 
7 11.15 
12 46.05 
ae Dec. 5 
6 59.2 
12 47-65 
2° 36' 20 
".75. 
2 a Centauri and (3 Centauri. 
OO 
0*5 
Barom. 
Therm. 
Star observed. 
S. Pol. Dist. corrected for Polar point. 
I. 
II. 
III. 
IV. 
June 20 
inches. 
30.02 
O 
43 
42 
/3 Centauri by reflect. 
2 a Centauri by reflect. 
261 53 53.6 
262 28 36.6 
53 46.2 
28 42.2 
/ // 
54 2.0 
28 49.5 
54 7.5 
28 48.1 
21 
29.80 
58 
57.5 
/ 3 Centauri direct 
2 a. Centauri direct 
30 28 21.1 
29 53 32.1 
28 19.9 
53 28.2 
28 23.7 
53 35.7 
28 20.6 
53 29.9 
22 
29.93 
53 
47 
/3 Centauri by reflect. 
2 a Centauri 
261 53 52.6 
262 28 39.6 
54 0.2 
28 46.7 
53 58.7 
28 46.5 
54 0.4 
28 46.4 
23 
29-98 
44 
/3 Centauri direct 
2 a Centauri 
30 28 23.6 
29 53 30.6 
28 16.2 
53 30.2 
28 29.5 
53 36.5 
28 22.6 
53 34.4 
24 
29.70 
48 
47 
(3 Centauri by reflect. 
2 a Centauri 
261 53 54.6 
262 28 38.6 
53 58.2 
28 39.2 
54 3.9 
28 46.7 
54 3.0 
28 48.5 
tt c a ( Observat. of 3 Centauri direct . . . 
Hence mean of the | Do< d £ Do. by reflect. 
Barom. 
inches. 
29.89 
29-88 
Therm. 
51 
48 
Half Sum = Horizon 
Supplement = Latitude 
Mean of 4 Micros. 
30 28 22.13 
261 53 58.4 
Hence mean of the 
{ Observat. of 2 a Centauri direct 
Do. Do. Do. by reflect.. . 
29.89 
29.88 
51 
45.3 
326 11 10.25 
33 48 49.75 
29 53 32.7 
262 28 44.9 
Half Sum = Horizon 
Supplement = Latitude 
326 11 8.85 
33 48 51.15 
