Burnham: Measures of Proper Motion Stars 
SD (15°) 4042 (9.0.. 
- 9 - 3 ) 
l Draconis (3.5...9.2) 
R. A. 15"3 m 38 s Decl.- 
* 15 ° 5 o' 
R. A. 15" 22 ,n 
16 5 Decl. + 59° 23' 
A and 
SD (15 0 ) 4040 
1909. I 12 
49?90 254"76 
1907.258 
354 ° 8 o 
114"15 
. 148 
49-77 254.67 
•425 
355-00 
114.42 
.164 
49-75 254.52 
•444 
355-00 
114.88 
1909.14 
49.81 254.65 
1910.414 
356.57 
125.35 
• 436 
357-27 
125.09 
The smaller star is DM (59°) 1655. The only other measure 
•452 
356.78 
125.32 
is: 
•455 
357-00 
125.33 
1879.26 5o?o 
254”67 in p 3 
A and a (11.3) 
It is obvious that the large star has no proper motion which 
1907.258 
178?15 
4 o "42 
can be separated from the 
errors of the observer in any form 
.425 
178.83 
40.02 
of measurement. This is 
shown by the contradictory results 
• 444 
178.37 
39-66 
found from meridian observations for the proper motion of 
1910.414 
172.33 
29.42 
1 Draconis: 
• 452 
171.58 
29.76 
Newcomb 
o"oi4 in 48?2 
•455 
171.11 
29-75 
Auwers 
0.015 in 336.4 
Groombridge 0.015 in 2.9 
No other measures of the small star. 
The mean 
results are: 
Gr. 10-year 
0.027 in 325.2 
1907.37 i 7°°45 
4o"oi 
3 n 
3 
Boss 
0.016 in 333.0 
1910.44 171.67 
29.64 
3 n 
P 
Both stars are given in A. G. Hels. from which we have: 
a and 
SD (15 0 ) 4041 
1875 
50?o 254"6 
1907.258 i 8 i ?35 
260". 27 
single dist. 
• 
The following are the measures of AB 
: 
1892.40 338^20 
66'! 2 2 • 
I 3 n 
Lv 
43 Librae (5-0...10.5) 
1894.44 341-02 
72.40 
2n 
Eng 
I 907-37 354-93 
114.48 
3 n 
(3 
R. A. 15"35 m 
2 s Decl. — 19 0 17' 
1910.44 356.90 
125.36 
4 n 
(3 
1909.378 
279 ? 6 o I 7 P -37 
From these positions the proper motion of A is 
.381 
279-55 170.91 
3*669 in I95?9 
.458 
279.45 171-44 
This is given from meridian observations: 
1909.40 
279-53 171-24 
Porter 
3"665 in 
195.0 
The small star is SD (19 0 ) 4187 (9.3). The other measures 
Bauschinger 
3■707 in 
195-4 
are: 
SD (15 0 ) 4041 has exactly the same proper motion. Com 
paring the above with O. Arg. S. and Cm 1 ' 1 shows no sensible 
relative motion. This is given from meridian observations: 
Porter 3 " 7 i 9 in 195V5 
Bauschinger 3-730 in 195.2 
1886.38 278?75 I 72 " 5 i 211 Eng 
1894.49 278.42 172.40 in Eng 
Rejecting the single observation, we have for the proper 
motion of 43 Librae: 
o"ii6 in 2i7?6 
o Coronae ( 5 - 7 -• -9-6) 
R. A. I5 h I5 m 11 s Decl. + 30° 3' 
1909.071 
337°45 
i 46"55 
.112 
337.60 
146.74 
.148 
337-33 
146.82 
1909.11 
337 A 6 
146.70 
The earlier measures of this star are: 
1887.50 336?73 
I 47”67 
2n 
Eng 
1894.56 336.77 
147.89 
2n 
Eng 
A mean of these positions compared with the present rela- 
tion indicates a smaller proper motion 
for the principal star 
than that previously given, 
the movement in declination being 
reversed. 
Measures 
o"n8 in 
275°6 
Auwers 
0.147 in 
250.5 
Boss 
0.138 in 
245.1 
From meridian observations this motion has been given: 
Auwers 
o"n7 
in 
2I4?0 
Newcomb 
0.117 
in 
205.1 
Boss 
0.127 
in 
200.8 
rp Serpentis (6. 
2.. 
.9.1) 
R. A. 15" 38’" o s Decl. + 2 0 56' 
1908.156 
.192 
.249 
A and B 
207^98 
207.65 
208.13 
2o8"oS 
208.29 
207.64 
1908.20 
207.92 
B and C (7.4) 
208.00 
1908.156 
235-55 
17TI92 
.192 
235-30 
171.78 
.249 
235-45 
171.63 
1908.20 
235-43 
I 7 I -78 
47 
