Burnham: Measures of Proper Motion Stars 
From meridian observations the amount and direction of the 
proper motion of 43 Herculis is somewhat uncertain: 
Auwers o'.'oso in 335 °7 
Boss 0.016 in 354.7 
The four positions by 02, A and |3 (1852-1911) give: 
o"oi5 in 340?8 
It is safe to assume that the 9 m star has no motion which 
would affect this result, but I have connected with it a very 
small star: 
7758 . 19 Ophiuchi. 2 2096. (6.0...9.3) 
R. A. 16” 4i m 7 s Decl.+ 2°i7' 
A and B 
I9 1 1-373 90?40 22"76 
.392 90.37 22.72 
•395 90.26 22.72 
1911.39 90.34 22.73 
These stars appear to have a small common proper motion. 
B and C (12.0) 
1911.356 133-13 9S"57 
• 375 133-23 98.47 
•392 133-70 98.65 
I9II-37 133-35 98.56 
7752 . 22100 rej. (8.5...10.7) 
R. A. i6 h 40 m 38 s Decl. + 50° 53' 
Auwers o"c>46 in 251?5 
Boss 0.037 in 238.9 
I have therefore measured a third star. 
A and C (11.3) 
1911.356 
I94?20 
2i3"i9 
■ 373 
I94-I5 
213.46 
• 392 
194.47 
213-71 
1911.37 
194.27 
213-45 
I907.33I 
295 °° 
23"36 
8.156 
298.2 
23-63 
8.192 
295-3 
23.60 
1907.89 
296.2 
23-53 
The only other measures are given in the General Cata¬ 
logue. 
7756 . Espin 76. (9.7...9.9) 
R. A. i6 h 40 m 58’ Decl. + 50° 50' 
I907.35I 
44°° 
2"77 
8.425 
44.0 
1.97 
8.444 
46.6 
2.40 
1908.07 44.9 2.38 
7757 . 22098. (8.0...9.0) 
R. A. i6 h 41™ 2 s Decl. + 30° 14' 
A and C (9.5) 
1909.400 
10.148 
10.167 
136?18 
135-12 
134.40 
64"74 
64.08 
64.69 
1909.90 
135-23 
64.50 
A and D (8.0) 
1909.400 
i6?05 
61 "57 
10.148 
15.32 
61.66 
10.167 
15-30 
61.62 
1909.90 
15-56 
61.62 
The position of AC by 2 is evidently only a rough setting. 
The meridian observations give: 
1875 136^7 64V76 A. G. Leid. 
The other distant star has a very faint attendant: 
D and d (14.0) 
1910.184 272?s 5"65 
.203 269.9 5-51 
1910.19 271.2 5.58 
7768 . 22103. (52... 10.0) 
R. A. i6 h 44 m 2 s Decl. + 13 0 28' 
A and B 
1911.468 
4i?o 
5 "26 
.471 
40.3 
5-23 
.487 
42.6 
5.28 
1911.48 
41-3 
5.26 
Measures by 2, A, Sp and (3 on 14 n (1830-1911) give for the 
1 apparent proper motion of A: 
Measures o"oo8 in 350?2 
Boss 0.037 in 221.4 
It is not likely that B has any motion which would change 
this result, but for greater certainty I have connected two very 
faint stars: 
A and C (13.6) 
1911.468 246^1 
.471 244.8 
.487 244.7 
17*98 
17.98 
18.23 
1911.48 
245.2 
18.06 
A and D (12.8) 
1911.468 I40?9 
4o"27 
.471 
141.8 
40.53 
•487 
141.8 
40.72 
1911.48 
Mi-5 
40.51 
7770 . 
A. G. 206. 
(9-3-.-9-7) 
R.A. i6 h 
44 m 35 s 
Decl. + 67° o' 
1907-331 
I55°5 
5 "66 
• 35i 
155-1 
5.69 
1907.34 
155-3 
5-67 
By an error of the printer, the position-angle by Doolittle of 
i54?7 is printed 164^7 in the General Catalogue. 
215 
