Burnham: Measures of Proper Motion Stars 
The principal star, DM (32 0 ) 3593, is variable, 5 m to 13.5 m. 
The former measures disagree in distance, and therefore 
change is uncertain. 
1880.32 254745 i6o'T8 in B 1 
1881.78 254.23 159.11 in B 1 
The variable has a small proper motion: 
Boss o'.'o93 in 23475 
Piazzi XIX. 306 (6.5...I2.0) 
R. A. 19" 46 m 26 s Decl. + n° 20' 
1909.551 159-90 93 ”48 
.570 I 59-98 94-34 
.589 I 59-76 _ 93-83 
1909.57 159-88 93.88 
Several faint stars nearer than that measured. No other 
observations. The proper motion is given: 
Paris o"470 in 21970 
Porter 0.481 in 229.9 
Groombridge 2961 (8.O...II.1) 
R. A. 19" 48 m 46 s Decl. + 38° 27' 
1909.340 3 I 3-58 43-76 
•342 313-75 43-70 
.381 3 I 3-32 43-62 
I 909-35 313-55 43-69 
No other measures. The proper motion of the principal star 
is given: 
Groombridge 
07321 
in 
357-0 
Porter 
0.358 
in 
354-9 
Gr. 10-year 
0-350 
in 
360.0 
DM (43° 
) 3425 (8.2... 
11.2) 
R. A.19" 53 
I ,n 20 s Decl. 4 
■ 43 ° 56 ' 
1909.342 
16703 
56741 
.381 
15-97 
56.29 
.400 
16.28 
56.03 
1909.37 
16.09 
56.24 
The principal star is red; erroneously called (43 0 ) 3422 in Bl. 
The early positions are discordant in distance; probably un¬ 
changed. 
1876.80 I5°76 56780 in Bl 
1880.26 16.03 55-86 in Bl 
A and C (7.0) 
1908.326 
3 i 8?07 
203725 
00 
318.48 
203.14 
.403 
318.48 
203.39 
1908.37 
318.34 
203.26 
C is Bradley 2567, and B is DM (16 0 ) 4117. 
The only direct measures are: 
AB 1886.78 272741 201^42 2n Eng 
AC 1886.78 315.04 202.80 2n Eng 
From the two comparison stars the apparent motion of A is: 
From AB 07508 in 22573 
From AC 0.542 in 224.4 
The proper motion of 15 Sagittae has been given from 
meridian positions: 
Auwers 
o 757 i 
in 
22874 
Porter 
0-573 
in 
225.6 
Boss 
0-577 
in 
224.4 
This would seem to be a little too large, as it is not probable 
that the small star B has any sensible motion. 
The 7 m star would be expected to have some movement, 
and undoubtedly has, although the amount is small, and un¬ 
certain. 
A. G. Berlin 
07015 
in 
2879 
Porter 
0.037 
in 
4.4 
Auwers 
0.012 
in 
330-1 
For an independent determination of the proper motions of 
the two bright stars, and showing the absence of change in B, 
if that is the fact, I have connected each with a small star. 
A and a (11.7) 
1908.326 320723 
.383 320.88 
.403 320.53 
58748 
58.74 
58.79 
1908.37 
320.55 
58.67 
B and b (9.2) 
1908.422 
231700 
183722 
.425 
231.12 
183.08 
• 444 
230.80 
183.25 
1908.43 
230.97 
183.18 
C and c (11.8) 
1908.326 
183760 
93738 
• 383 
184.05 
93-85 
• 403 
183.93 
93-59 
1908.37 
183.86 
93-45 
DM (20°) 4417 (8.9. ..13.5) 
R. A. 19" 59 m 48 s Decl. + 20° 18' 
15 Sagittae (6.0...8.8) 
R. A.19” 58 ra 
43 s Decl. + 16° 45' 
1908.326 
A and B 
274750 
194727 
.383 
274.82 
194.08 
• 403 
274-93 
194 .12 
1908.37 
274.78 
194.16 
1909.493 
.496 
A and B 
24679 
249-5 
13705 
13.13 
1909.49 
248.2 
13.09 
A and C (12.1) 
1909.381 
103780 
59734 
• 493 
103.87 
58.95 
• 496 
103.17 
59.28 
1909.46 
103.61 
59-19 
60 
