OCCULTATIONS OF FIXED STARS 
PUl. Jour, No, II. p. 282v 
OBSERVED AT THE 
royal palace in la VALETTE, in Latitude 35“ 54' Ol" N. by Observation. 
Month. 
Timekeeper 
slow of mean 
time at noon. 
Rate loos. 
Constella- 
tions. 
Magnitd. 1 
Per Timekeeper. 
Mean Time at 
Valette. 
Star’s Place. 
Supposed 
mean time 
at Green- 
wich. 
([ ’s true Place. 
Equatorial. 
Parallax 
in longi- 
tude. 
d ’s appar, 
latitude. 
Augmented 
Semidiame- 
ter. 
M 
Right Ascen. 
ean 
Declinationi 
Appi 
Longitude. 
irent 
Latitude, 
Longitude. 
Latitude. 
Parall. 
Semid, 
1818. 
Dec* 2* 
1h 
9 
Capricor. 
7 
7h iQm ogs imm. 
9h 12m 
' 16*.7 Imm. 
318° 
28' 19". 2 
21°36'40."4 
10> 14° 20' 31" 
5° 18' 09" 
8'' 
14“ 
16* 
10a4°S9'27" 
4°57'45.5" 
59' 25" 
16' 13." 
55' 00" 
5° 20' 30", 
16' 13".66 
5. 
1 
53 
37.7 
p Piscis 
6 
7 
43 
20 
Imm. 
9 
37 
01.2 Imm. 
357 
21 15.8 
4 33 33, 
11 25 45 25 
3 7 47 
8 
38 
59 
11 26 11 48.5 
2 47 
29.8 
57 00.3 
15 33.542 
18 
3 8 
23.8 
15 42.25 
5. 
q Piscis 
6 
9 
47 
17 
I mm. 
11 
40 
59.2 Imm. 
358 
8 20.2 
4 02 03.2 
11 26 41 05 
2 57 36 
10 
42 
57 
11 27 19 13.7 
2 42 
20,8 
56 56.6 
15 32.553 
50.42 56 
16 
15 35.93 
IS. 
1 
55 
12.6 
10.8 
V 2 Cane. 
6 
15 
08 
03 
Em. 
17 
03 
23. Em. 
124 
27 56.3 
24 44 18.7 
4 01 03 28 
4 54 57 
16 
5 
34 
4 01 37 08 
5 3 
50,3 
54 05. 
14 45.7 
21 
41. 
4 44 
33 
14 57,6 
1819. 
Jan. 4, 
1 
59 
01.3 
15.2 
Piscis 
7 
6 
31 
37 
Imm, 
8 
30 
43.6 Imm. 
S. 
1 
59 
16.6 
g 2 Ariel. 
6 
10 
41 
18 
Imm. 
12 
40 
42.4 Imm, 
41 
24 52,0 
17 35 38.7 
1 14 20 55.5 
1 30 03 
11 
42 
58 
1 14 56 25 
1 36 
12.4 
54 54.3 
14 59,1 
48 
49.0 
1 23 
26,0 
15 04.8 
9. 
2 
00 
12.2 
14.1 
19 
2 
2 
07. 
11.3 
Virgo 
7 
14 
37 
59 
Em. 
16 
40 
13. Em. 
20. 
2 
2 
19.5 
11.9, 
1 Virgo 
7 
12 
54 
03 
Em. 
14 
56 
28. Em. 
Mar. 12 
2 
12 
37.4 
11 
1 ) Virginis 
3 
5 
56 
16 
Imm, 
8 
8 
57,1 Imm, 
182 
40 03.3 
0 20 25.1 
6 2 18 56 
1 22 27 
7 
11 
13 
6 01 13 06.9 
1 43 
13.7 
56 20.0 
15 22.5 
52 
36.01 30 
22.8 
15 26,8 
0 Virginis 
6 
58 
56 
Em. 
9 
11 
37.4 Em, 
8 
13 
53 
6 01 46 44.6 
1 40 
19,8 
56 21.3 
15 22.9 
47 
33.2 
1 25 
15,0 
15 30,2 
16. 
2 
13 
19.4 
10.3 
Scorp. 
7 
10 
53 
40 
Em, 
13 
07 
05. Em, 
16. 
Scorp. 
6 
13 
00 
31 
Imm. 
15 
13 
56.8 Imm. 
235 
46 44,0 
23 59 31 
7 28 59 37.5 
48 17 8 
14 
16 
06 
7 28 24 06.4 
3 13 
31.8 
58 21.4 
15 55.6 
21 
50, 
3 59 
31.6 
16 03 7 
16. 
eadem. 
14 
19 
38 
Em. 
16 
33 
04.4 Em. 
15 
35 
13 
7 29 9 28. 
3 16 
51.7 
58 22.7 
15 56.0 
06 
19,94 6 
59.3 
16 04.3 
16. 
Scorp. 
6 
15 
49 
31 
Imm, 
18 
02 
58.1 Imm, 
17. 
2 
13 
29.7 
1 
Mar. 8. 
Jupiter’s 
first Satellite. 
15 
30 
12 
Imm. 
17 
42 
10. Imm. 
Immersion computed IC** it"" 36s.9 mean time at Greenwich, from Delambre’s Tables inserted in Vince’s System of Astronomy. 
The 6th and 7th columns contain the original Times of Immersion and Emersion by the Timekeeper, taken on the spot. The error from 
Mean Time at noon and Rate are carefully ascertained by equal altitudes. The Moon’s place, equatorial, parallax, and semidiameter, are calcu- 
lated from Burg’s Tables. The Stars places are taken from the Catalogues of Bradley, La Caille, Zach, T. Mayer, and Wollaston. Those 
not calculated will probably be found in the Catalogues of Piazzi and La Lande, to which I had no opportunity of referring. 
The Longitudes of the Palace, deduced from a comparison with Burg’s Tables, are respectively IP 31' 07".5, IP 25' 10".5, IP 26' 55", 
IP 2P 09, IP 32' 45", IP 26' 00", IP 29' 27", IP 22' 36", IP 30' 37".2; the mean of which is IP 27' 38".6. 
The Latitude of the Palace 35° 54' 01" is the result of 144 circummeridional altitudes of the Sun, and twenty-eight observations of Stars, 
calculated after the following formula : 
w? 7r Cos lat. X Cos deck 
1.6 ^ Sin (lat. + deck) = 
where n signifies the time from noon, expressed in minutes and decimal parts of minutes, and A a number of seconds, by which each respective 
true altitude is to be augmented to give the meridional altitude ; tt the ratio of the diameter to the circumference. ' 
