Burnham: Measures of Proper Motion Stars 
The (3 measures of the faint star (1878-1911) give for the 
proper motion of 72 Ophiuchi: 
o"c»93 in 326 ?o 
Values from meridian observations are: 
Boss o'Tio in 323^0 
Auwers 0.116 in 318.5 
Newcomb o.m in 322.8 
8361 . H 1313. (9.3.. .11.6) 
R. A. i8 h 1“ 42 s Decl. + 28° 42' 
1907.482 309!1 14^38 
.504 310.0 14.50 
.542 308.9 14.66 
1907-51 309-3 I 4 - 5 I 
The apparent change in the distance is not likely to be real. 
8369 . H V. 74. (6.7...9.5) 
R. A. i8 h 2 m 17 9 Decl. + 13 0 3' 
1911.583 137°23 41-88 
.602 136.90 42.10 
.625 136.90 42.05 
1911.60 I37-OI 42.01 
Unchanged. 
8372 . 99 Herculis. A. C. 15. (5.2. ..10.5) 
R. A. i8 h 2 m 28 s Decl. + 30° 33' 
A and C (11 
• 5 ) 
1912.296 
52?55 
93"70 
-351 
52.90 
93-52 
-353 
53-26 
93-13 
1912.33 
52.90 
93-45 
No other measures of the 
faint star. 
The proper motion 
the close pair is: 
Auwers 
o"i35 
in 
30 i °7 
Paris 
0.115 
in 
310.5 
Boss 
0.113 
in 
303-7 
8380 . 73 Ophiuchi. 2 2281. 
( 5 - 7 --- 7 - 2 ) 
R. A. 18" 3 m 
36 s Decl. + 3 ° 58' 
AB 
and C (12.6) 
1912.236 
191-45 
67 "22 
-274 
191.00 
66.98 
-351 
191-43 
67-15 
1912.28 
191.29 
67.12 
The proper motion of the binary system is given from meri 
ian positions: 
Auwers 
o".022 in 
H 9°5 
Boss 
0.039 in 
107.8 
8381 . 
S 700. (7.7. 
..9.6) 
R. A.i8 h 
3 m 38 s Decl. 
—16 0 47' 
A and B 
1910.490 
292? 1 
i8"6 3 
• 493 
292.1 
18.81 
• 509 
292.6 
18.70 
1910.50 
292.3 
18.71 
A and C (8.0) 
1910.490 
353-8 
2S"8o 
•493 
353-7 
28.72 
• 509 
353-6 
28.56 
1910.50 
353-7 
28.69 
These stars form a part of h 1997. Probably unchanged 
8382 . 102 Herculis. A. G. Clark 8. (5.5. 
. .12.5) 
R. A. i8 h 
3 m 38 s Decl. + 20 0 48' 
1911.241 
I 36?7 
23 " 8 4 
.302 
135-3 
23-44 
•334 
136.6 
23-31 
•395 
136.0 
23-15 
1911-32 
136.1 
23-44 
The four measures 
(1878-1911) show no certain change. 
The proper motion of 
102 Herculis is small: 
Auwers o"oi5 in 
2I2?9 
Boss 
0.017 in 
184.7 
8383 . 
2 2290. (8.5.. 
.10.8) 
R. A.18" 
3 m 39 s Decl. + 50° 0' 
A and C (12.3) 
1909.170 
69?50 
i 77"48 
.186 
69.68 
177-44 
.227 
69.62 
177-51 
1909.19 
69.60 
177.48 
The former measures are somewhat uncertain in distance: 
1880.32 70? 
12 i 77"36 
in 
B 1 
1880. 80 70.00 176.25 
in 
Bl. 
No material change in AB. 
8384 . 
2 2283. (7.2. 
-- 7 - 7 ) 
> 
t-H 
00 
’ 3 m 43 s Decl. + 6° 8' 
1909-515 
8o?o 
o':86 
• 531 
83.0 
0.91 
1909.52 
81.5 
0.88 
Slow angular motion. 
The Herschel bright planetary nebula 
s about i° distant nf. 
The 15 m star, 
near the 
central star, 
measured at Lick Observatory in 1891, was too faint for good 
measures here. 
227 
