12 
MR. RUMKER’S OBSERVATIONS 
3. Southern Solstice, December 1828, observed alternately direct and by Re- 
flection, with the Repeating Circle. 
1828. 
True Zenith Di- 
stance of Sun’s 
apparent place. 
Reduction to 
Solstice. 
Correction 
for Sun’s 
Latitude. 
True Zenith Di- 
stance of Tropic 
of Capricorn. 
Dec. 14 
10 35 17-34 
/ // 
— 14 2.37 
— 0.32 
10 21 14.65 
15 
„ 31 53.9 
10 38.92 
-0.19 
„ 21 14.80 
16 
„ 29 1.96 
7 43.36 
-0.05 
„ 21 18.55 
17 
„ 26 34.9 
5 15.73 
+ 0.08 
» „ 19.25 
18 
„ 24 29.9 
3 16.41 
0.24 
» )) 13.73 
19 
„ 22 56.43 
1 45.20 
0.38 
„ „ 11.61 
20 
„ 21 54.93 
42.15 
0.50 
„ „ 13.28 
21 
„ 21 19-77 
7.48 
0.59 
,, ,, 12.88 
10 21 14.83 
Both Nutations 
-9-8 
Mean Zenith Distance of Tropic of Capricorn 
10 21 5.03 
Mean Obliquity 
23 27 42.78 
Latitude 
33 48 47.81 
Latitude of the Observatory, by Observations direct and by Reflection, of 
Stars made with the Mural Circle. 
Sirius. 
1823. 
Barom. 
Therm. 
Observations. 
Micrometer not corrected. 
Refrac- 
I. 
II. 
III. 
IV. 
tion. 
Feb. 17 
18 
inches. 
29.92 
29.97 
O 
70.2 
71.0 
direct 
by reflect. 
Ill 26 16.49 
256 46 56.5 
27 14.2 
47 49.4 
26 55.7 
47 47.5 
26 38.9 
47 26.9 
// 
16.3 
Horizon — half Sum 
Apparent altitude = half Differ. . . 
184 6 36.5 
72 40 20.0 
7 31.8 
40 17.6 
7 21.6 
40 25.9 
7 2.9 
40 24.0 
Mean of the 4 Microscopes . . . . 
Refraction 
.. 72 40 
// 
21.9 
16.3 
True Altitude 
True Declination 
. . 72 40 
.. 16 28 
5.6 
50.6 
Latitude . . . . 
.. 33 48 
45.0 
