3 ° 
Profefor Bugge’s Agronomical Obfervations 
The name of the 
aftronomer. 
Time of obfer- 
vation. 
Heliocentric lon- 
gitude of & £ . 
Annual motion. 
A. 
B. 
Tycho Brahe 
Cassini 
Cassini 
de la Caili.e 
de la Caille 
\ 
Maskelyne 
Bugge 
1 595, Oct. 28 
1700, May 6 
1721, Nov. 13 
1747, May 14 
1753 * Nov - 4 
1778, April 1 7 
1783, Dec. 7 
8 * 0 / // 
1 16 24 33 
1 l l 13 43 
1 17 29 49 
1 17 37 11 
1 17 42 5 
1 17 51 40 
1 17 54 24 
Mean 
// 
28.7 
28,9 
23.8 
2 7>5 
24.6 
28,5 
// 
29.4 
3 L 3 
28,9 
29.6 
2 <I ,3 
28.7 
27,0 | 29,5 
The mean of the two feries A and B will give the mojl 
probable annual motion of Mars's node 28 ',2. In the tables or 
M. Cassini the annual motion is 34/ , in the tables ot Dr. 
Halley 38", and in the tables of M. de la Lande 40". 
IV. The inclination of the orbit of the planet Mars. 
Mean time at Copen- 
hagen. 
Geocentric lon- 
gitude of $ . 
0 
Geocentric 
latitude of 
i . 
£rror of the tables of 
M. de la Lande, 
in long, j 
in lat. 
/ // 
s • 0 / // 
0 
r // 
// 
it 
1788, Jan. 9 
11 57 7 
3 16 27 7 
4 
5 25 n 
+ 17 
4 - 1 
10 
II 51 28 
3 16 3 35 
4 
6 io 
+ 19 
+ 7 
1 1 
11 45 5 ° 
3 i 5 40 15 
4 
6 44 
+23 
+ 10 
26 
lO 24 5O 
3 i° 43 39 
4 
3 59 
+ 45 
+ l 9 
Feb. 14 
8 58 52 
3 8 13 29 
3 
39 35 
— 8 
+ 8 
Mar. 9 
7 37 35 
3 11 13 55 
3 
1 1 3 
- 7 
- 4 
12 
7 29 7 
3 n 59 16 
2 
5 6 5 2 
+ 2 
+ 7 
J 3 
7 26 19 
3 12 15 21 
2 
55 24 
+ 2 
+ 9 
14 
7 23 35 
3 12 31 44 
n 
53 5 6 
+ 3 
+ 8 
16 
7 18 10 
3 i 3 5 S 8 
2 
50 56 
— 18 
+ 7 
April 6 
6 27 49 
3 20 29 42 
22 46,7 
- J 7 
+ 8 
The geocentric longitudes of Mars are corrected for aberra- 
tion and nutation, and compared with M. de la Lande’s 
n ewe ft 
