Burnham: Measures of Proper Motion Stars 
H 1877 (A) and h 2241 
1908.444 243? 3 5o:'o7 
.482 243.6 50.38 
.518 243.4 50.66 
1908.48 243.4 50.37 
This is a well known planetary nebula (Dreyer 7662) with 
the minute star in the center, which is characteristic of all 
nebulae of this class. The central star was rated 15 m in my 
measures at Mt. Hamilton. This, like many of the central 
stars in the planetary nebulae, and similar attendants to 
bright stars, is a test of atmosphere rather than aperture, and 
at times is beyond the reach of the largest telescopes. On 
the occasion of the foregoing measures it was not well seen 
owing to the unsteady condition of the air. The prior meas¬ 
ures of h 2241 and the principal star of H 1877 will be found 
in Pub. L. O. II p. 167. There is no suggestion of any change 
in the last fifty years. 
12366. 
See 485. (6.7. 
. .12.2) 
R. A.23 h 
20 m 16 s Deck - 
— 22° 24' 
1908.671 
I 3 I -3 
5 "o 3 
.826 
129.6 
5-*5 
1908.75 
130.4 
5-09 
The proper motion of the large star is given: 
Boss 0:036 in 85?2 
12369. x Piscium. S 830. 
(5.0...10. 
R. A. 23” 
20 m 46 s Deck + o° 36' 
A and B 
1907.540 
344-13 
160:91 
• 559 
344-25 
161.33 
.562 
344-25 
161.05 
I 907 -SS 
344-21 
161.10 
For the proper motion of the principal star. 
Measures 
of AB 0:169 
in 152:0 
Auwers 
0.109 
in 144.7 
A. G. Nico. 0.119 
in 148.9 
Boss 
0.124 
in 136.5 
B and 0 (13.2) 
1907.540 
153-7 
75 "92 
•675 
154-2 
76.50 
•731 
153-6 
76.00 
1907.65 
153-8 
76.14 
No other measures of the small star. 
12372, 
, p 386. (6.5.. 
.11.9) 
R.A. 23” 
2i m 13 8 Deck + 70° 1' 
A and B 
I 907 - 35 I 
3 * 3-6 
* 9 , - 9 * 
-444 
3 * 3-2 
19.77 
.463 
312.8 
19.72 
1907.42 
3 * 3-2 
19.80 
1910.720 
3 * 3°03 
2o'.'o6 
•739 
3*2.50 
T9.68 
.760 
3 * 3-28 
T9.74 
1910.74 
3 * 2-94 
* 9-83 
The proper motion of 
A is uncertain in direction 
amount; I have therefore connected a third faint star. 
A and C (12.1) 
I 907 - 35 I 
202 ?9 
46 "88 
•444 
203.3 
46.37 
•463 
203.0 
46.71 
1907.42 
203.1 
46.65 
1910.720 
203:50 
46^63 
•739 
202.93 
46.28 
.760 
203.48 
46.23 
1910.74 
203.30 
46.38 
A. G. Chris. 
o"026 
in 
96?7 
Battermann 
0.013 
in 
40.9 
Schroeter 
0.026 
in 
57-0 
Boss 
0.053 
in 
40.9 
12381. 
23014. (8.1... 
10.4) 
R. A. 23” 
2i m 52 s Deck + io° 29' 
1907.540 
280? 2 
S'.To 
.562 
281.8 
7.91 
• 657 
281.7 
8.01 
1907.59 
281.2 
8.01 
There appears to be 
a slight increase in 
the distance, 
12384. 02 (App.) 246. (7.3...8.2) 
R. A. 23” 
2i m 58 s Deck + 
22° 55 ' 
A and B 
1907.810 
H 4-33 
86:74 
• 845 
114.23 
86.80 
.865 
H 4-45 
S6.80 
1907.84 
1 * 4-34 
86.78 
1911.602 
1 * 4-53 
86:81 
.622 
114.41 
87.03 
.625 
114.70 
87.48 
1911.62 
H 4-55 
87.11 
A and C (10.9) 
1907.845 
*56^38 
*35:47 
7-865 
156.68 
135-82 
8-479 
156.47 
* 35 - 5 * 
1908.06 
156.51 
i35-6o 
B and C 
1907.845 
195-35 
92:41 
7-865 
195.68 
92.02 
8-479 
195-93 
92-57 
1908.06 
I 95-65 
92-33 
303 
