Burnham: Measures of Proper Motion Stars 
A and a (11.0) 
1911.184 14H2 
2 "29 
.200 146.1 
2-49 
1911.19 143-6 
2-39 
The near companion not previously seen. 
7735. 02 (A PP .) 149. (6.7...7-3) 
R. A. i6 h 38 m 19 9 Decl. + 20° 57' 
1911.280 I35° 2 3 98"73 
.299 135-25 98.88 
.302 135-04 99-38 
1911.29 135-17 99.00 
Relatively fixed. 
7738. rj Herculis. 
R. A. i6 h 38"’ 
47 s Decl. + 39° 9' 
1911.241 
262?60 
H3"70 
.258 
262.28 
113-90 
.260 
262.40 
113-61 
.280 
262.30 
113-83 
1911.26 262.39 113.76 
The later measures compared with my single night in 1879 
give for the proper motion of tj Herculis: 
Measures 
o"c>90 
in 
I57°0 
Auwers 
0.079 
in 
161.2 
Boss 
O.IOI 
in 
160.4 
Newcomb 
0.100 
in 
159-3 
7740. 41 Herculis. (6.2...9.0) 
R. A. i6 h 39 m 9 s Decl. + 6° 19' 
A and B 
1907.217 
I 9 I ?2 
i 62"53 
.258 
191.2 
163.15 
.291 
I 9 I -4 
162.83 
1907.26 
I 9 I -3 
162.84 
A and C (9.5) 
1907.217 
246?4 
i59"o6 
.258 
246.3 
159-50 
.291 
246.5 
159.20 
1907.26 
246.4 
159-25 
1911.241 
246?28 
158'.'09 
.260 
246.47 
158.20 
.280 
246.18 
157-77 
.302 
246.18 
I 57-83 
1911.27 
246.28 
157-97 
From all the measures of AC by 02 and (5 (1854-1911) the 
proper motion of 41 Herculis is: 
o"343 in 222?5 
B and a (12.5) 
I907-I97 
348?3 
62 "90 
.217 
346.6 
62.83 
.258 
347-8 
6350 
1907.22 
347-6 
63.08 
C and a 
1907.197 
io8?6 
io6"37 
.217 
107.6 
106.45 
.258 
108.5 
105.76 
1907.22 
108.2 
106.19 
1911.241 
io8?30 
105V94 
.260 
107.83 
105.61 
.302 
107.92 
105-74 
1911.27 
108.02 
105.76 
The measures of C are continued for a more accurate proper 
motion of 41 Herculis. The positions of the faint star show 
that C has no motion. 
Auwers 
o "336 
in 
233-4 
Porter 
0-341 
in 
224.8 
Boss 
0-352 
in 
218.2 
7745. A. G. 205. 
R. A. 16 11 39 m 28 s Decl. + 24 0 i' 
This is the planetary nebula h 1970 (Dreyer 6210). In the 
course of my measures of all the well-known planetary nebulae 
in 1891 at the Lick Observatory, this was examined with others 
as stated in the introductory remarks (Publ. L. O. II, p. 159) ; 
but for some reason, which I am unable to explain at this time, 
the central star, which is characteristic of all nebulae of this 
class, was not seen. At the present time it could not be over¬ 
looked with any moderate aperture. It is nearly twelfth magni¬ 
tude, and appears with favorable atmospheric conditions as a 
sharp, brilliant point. Doubtless this has been seen by others. 
If it is not variable, I cannot account for my failure to see and 
measure it with the 36-inch at Mt. Hamilton. 
It is now connected by measures with the nearest compari¬ 
son star. 
h 1970 and star (12.3.. .11.3) 
1908.156 
271°73 
I23"i9 
.249 
271.85 
123.64 
.266 
271.92 
123.77 
9.167 
272.17 
124.64 
.227 
271.65 
123.84 
•304 
272.20 
124.17 
1908.72 
271.92 
123.87 
7747. 43 Herculis. Sh 239. (5.5...9.0) 
R. A. i6 h 40”’ 4 s Decl. + 8° 48' 
A and B 
I9H-35 3 
230?23 
82 "43 
• 356 
229.70 
82.44 
-373 
229.80 
82.24 
1911.36 
229.91 
82.37 
214 
