Burnham: Measures of Proper Motion Stars 
7268. 
Sh 202. (7.2. 
•• 7 - 5 ) 
R. A.i 5 h 
2i m 4o’ Decl. 
-8° 55 ' 
B and SD (8°) 3984 (10.5) 
1910.356 
109 ?73 
166769 
•395 
109.58 
166.17 
• 397 
109.46 
166.47 
19x0.38 
109.59 
166.44 
For proper motion of AB. 
The proper motions by Porter are: 
A o"339 in i72?o 
B 0.355 in 158.4 
As these stars have remained relatively fixed for half a 
century, the motions must be exactly the same. 
7276. O2296. (7.0...8.6) 
R. A. i5 h 22 m 18 s Decl. + 44 0 26' 
A and C (12.1) 
1911.260 3 X 5°73 67"23 
•337 315-97 67.33 
_ .356 315-73 67.41 
1911.32 315-81 67.32 
No other measures of C. The principal star, Lalande 28230, 
is given some proper motion: 
Bossert o"i78 in io6?3 
Boss 0.105 in 125.4 
DM (44 0 ) 2466 and 2468 
1911.337 47-70 I 57"07 
•353 47-92 I 56.93 
1911.34 47.81 157-00 
These 9.3 m stars are about 10 's of 02 296. The meridian 
positions give: 
1875 46?5 156"! A. G. Bonn 
7277. 21945. (8.8...9.5) 
R. A. i5 h 22 m 26 s Decl. + 15 0 7' 
A and B 
1908.249 
292?8 
32"47 
.2 88 
292.6 
33-00 
• 33 i 
292.7 
32.42 
1908.29 
292.7 
32.63 
From the measures of 2 , A and P (1830-1908) the proper 
motion of the larger star is: 
o"i40 in i82?3 
A and E (10.7) 
1908.249 54° 1 5 I46"22 
.288 54-15 146.26 
1908.27 54.15 146.24 
7289. Ho 393. (9.2... 13.0) 
R. A. I5 h 24 m 21 s Decl. — 18 0 27' 
A and B 
1908.479 287?i 6"s6 
10.395 280.2 7.01 
1904.44 283.6 6.78 
Perhaps change in AB, but the distances are very discordant. 
A and SD (18 0 ) 4083 (7.9) 
1908.479 3i3°98 i68"84 
08.842 313.90 168.42 
10.395 312.88 168.53 
1909.12 3I3.59 168.60 
The SD approximate places give 305°: 155". 
7302. P 945. (6.8.. .12.7) 
R. A. 15" 26 m 6 s Decl. + 57 0 51' 
1908.425 
44°5 
15 "80 
•444 
44-3 
15.66 
.460 
45-9 
15-81 
1908.44 44.9 15.76 
The seven positions by P, A and Doo (1879-1908) give for the 
corrected proper motion of the principal star: 
o"302 in 301?4 
This is given from the star catalogues: 
Stumpe 
o "304 
in 
297-4 
Krueger 
0.295 
in 
298.5 
Porter 
0.308 
in 
299.1 
7314. Y Librae. (4.5...11.7) 
R. A. i5 h 28™ 48 s Decl. — 14 0 23' 
1912.487 I52?84 41^90 
.504 152.80 41.72 
.507 153.40 41-98 
1912.49 153-01 41-87 
To make it certain hereafter that B has no motion, I have 
connected two small stars. 
B and C (9.5) 
1908.249 
281 ?4 
8'.'84 
.288 
281.4 
9.04 
• 331 
282.9 
9.06 
1908.29 
281.9 
8.98 
The measures of the small star indicate a smaller proper 
motion of y Librae than that of the star catalogues, but the 
first position depends on a single night, and therefore the 
result is uncertain, and the measures should be continued. 
From meridian observations we have: 
Auwers 
0"057 
in 
70?6 
Newcomb 
0.069 
in 
84.7 
Boss 
0.065 
in 
90.9 
204 
