(8) 
| Observation. | Number Ay As 
N°. Date. Observer.” PE EE of n 
fp | r | nights. | 6 r 4 r 
1 | 1896.920 | Schaeberle *) | 189920 (3773) 4 | 3 [+4-4960/—0"35|—0°27 —0"06 
2 | 97.017 | Aitken 2) | 187.03 |3.84 8:5 |4]+3.81|—0.97}—0.83/-10.03 
3 „206 | Hussey 2) | 186.62 3.78 1. |1]+6.04/-0.39]4+1 84—0.06 
4 -216 | Brenner —*) | 189.07 3.68 2-0] +8.63|—0.49] 4.4.46 —0.16 
| 
5 | 1897.802 | See s)| 173.89 |4.63| 4 |3{41.19|40.99|-1.521-10.67 
6 818 | Aitken © | 174.78 14.03) 4:3 |3]49.98|\—0.32]~0.38|4.0.07 
7 828 | Boothroyd 7) | 173.66 |4.95| 9 lg 41.29 +0.60]—1.35)+0.99 
8 839 | Schacberle s) [175.18 3.95 3 |2|2.94—0.40|0.34—0.02 
9 .940 | Hussey *) | 175.04 4.01) 3:2 | 2]44.07|\—0.37/4+1.72/+0.02 
10 | 1898.151 | Aitken 10) | 170.82 |4.29 2 | 2]4+2.44/—0.2914-0.63,40.18 © 
11 „273 | See 11) | 168.93 (4.79 3 |2]49.09|+0.31]+0.52/40.73 
12 .276 | Boothroyd ™) | 170.74 4.86, 3 |214+8.87/40.38]42.37/40.79 
13 | 1898.737 | Aitken 10) | 161.68 |4.22 3 | 2]+0.14,—0.40]—0.21,+0.04 
14 .785 | Hussey 10) | 162.10 (4.18) 2 | 2}+1.10/—0.45]4+-0.86/—0.02 
15 | 1899.177 | Aitken?) | 154.30 4.55) 1 |1|—2.44—0.20|—1.76/40.24 
16 .286 | Hussey 10) | 154.63 ie! 3 | 2}—0.96 —0.38;—0.04,+0.06 
') A. J. 394; mean having regard to the weights. — 2) A. N. 3465; Ist, 7th and 
8th nights weight 2. — %) A. J. 427. — 4) A. N. 3421; excluded for unreliability of 
the method — *) A. N. 3469; every night weight 1. — %) A. J. 424 and 429; mean 
having regard to the weights. — 7) A. N. 3469; the two nights equal weight. — 
5) A. J. 420. — %) A. J. 427; every night weight 1. — 1°) Received in MS.; mean 
having regard to the weights. — 11) M. N., lviii 7; all the nights weight 1. 
The manner in which the weights 2 have been deduced shall be 
stated farther on; in both eclumns A; are contained the differences 
from my elements of A. N. 3336 in the sense Obs. — Comp. 
My first work was to investigate anew the personal errors of the 
observers. These attaining considerable amounts especially in the 
distances I resolved to found the correction of the orbit exclusively 
on the angles of position. With the exclusion of the evidently un- 
successful measurements the means were taken of the differences 
Obs. — Comp. for every opposition, a diagram of these was made, the 
points being connected by a curve in the best way possible. Ac- 
cording to the method of Prof. Auwers I aiso assigned weights of 
the form g= mn, where m depends on the telescope and on the 
number of nights. I assumed preliminarily : 
