172 
Mr. wargentin’s Letter on 
Obfervation.es comparatae primi fatellitis Jovis. 
Anni. Temp. Obfervationis. Calculus. Diff. Calc. Obfervatorium. 
M. D. 
h in 
h • " 
/ // 
1766. Apr. 20. 
9 34 24 
Em. 
9 34 42 
0 18 -j- Stockholm- 
10 23 9 
- 
10 23 45 
0 36 4- Peterfb. 
27- 
11 30 20 
- 
11 30 42 
0 22 + Stockh. 
May 13. 
9 47 45 
- 
9 48 2 
0 17 4- Tyrnav. 
9 49 24 
- 
9 50 1 
0 37 4“ Stockholm^ 
20. 
11 25 12 
- 
11 25 4 
0 8 — Lund. 
Jun. 5. 
9 54 1 
- 
9 53 44 
017 — Wien. 
9 58 39 
- 
9 58 29 
0 10 — Tyrnaw 
Oft. 10. (d) 17 I 20 
Im. 
16 59 31 
1 49 — Greenw. 
18 11 45 
- 
18 11 42 
0 3 — Stockh. 
26. 
16 27 59 
- 
16 28 13 
0 14 4- Tyrnav. 
Nov. 2. 
17 21 9 
- 
17 21 18 
0 9 4" Paris. Cl. 
18 22 20 
- 
18 22 12 
0 8 — Tyrnav. 
18 24 19 
- 
18 24 11 
0 8 — Stockholm. 
18. 
16 36 1 
- 
35 51 
0 10 — Tyrnav. 
25- 
18 9 27 
- 
18 10 1 
0 34 4* Lund, d . 
18 29 37 
- 
18 29 27 
0 10 — Stockh. 
Dec. 4. 
13 44 46 
- 
*3 45. 9 
0 23 + Paris. O. 
13 44 53 
- 
13 45 
018+ Paris. Cl. 
18. 
17 25 29 
- 
17 25 29 
0 0 Paris. O. 
1767. Jan. 3. 
15 24 1 
- 
*5 23 57 
0 4 — Greenw. 
12. 
11 41 41 
- 
11 42 15 
0 34 + Greenw. 
” 5° 57 
- 
11 51 31 
0 34 4- Paris. O. 
26. 
15 34 34 
- 
15 34 40 
0 6 4- Paris. Cl. 
Feb. 2. 
17 26 54 
- 
17 27 20 
0 26 4- Paris. Obf. 
17 27 13 
- 
17 27 22 
0 94- Paris. Cl. 
*3- 
9 18 13 
- 
9 18 44 
0 31 4“ Tyrnav. 
20. 
11 14 44 
- 
11 i 5 14 
0 3° 4 “ Stockholm. 
27- 
11 57 7 
11 58 6 
0 59 + Greenw. d . 
Mart. 17. 
8 12 16 
Em. 
8 11 32 
0 44 — Tyrnav. 
22. 
14 28 48 
- 
14 28 40 
0 8 — Greenw. 
\ d ) This obfervation rightly reduced to apparent time is i6 h 59' 31", which 
happens to agree exactly with Mr. wargentin’s calculation. N. m. 
Obfervationes 
