Burnham: Measures of Proper Motion Stars 
The corrected proper motion is less: 
o"372 in 149?5 
It is given from meridian positions: 
Stumpe o"439 in iSi?6 
Porter 0.428 in 153.2 
Paris 0.454 in 146.6 
It is extremely improbable that the small star has any sensible 
motion. To make this certain hereafter, I have measured a 
third 12.2 m star : 
A and a 
1907.964 30^65 86"7o 
8.102 30.90 86.60 
1908.03 
30.77 
86.65 
DM (54°) 444 (7.9.. 
• 9 - 3 ) 
R. A. 1" 55 m 7 s 
Decl. + 54 0 39' 
1909.573 
176^62 
22l"l2 
• 592 
176.68 
221.15 
.647 
176.10 
220.77 
1909.60 
176.47 
221.01 
This has been measured as 
follows: 
1879.40 1 76°. g6 
220"17 
2n B 1 
The principal star is reddish. The other is DM (54°) 445. 
The apparent change is probably not real, since the separating 
distance is too large for the most accurate measures. 
Lalande 3962 
R. A. 2 h 3 m 25 s 
Decl. + 29 0 15' 
A and B (8.5...11.7) 
I 907 . 79 I 
I70?20 
I03"89 
.807 
169.58 
103.58 
.865 
169.90 
103.69 
1907.82 
169.89 
103.72 
A and C (11.2) 
1907.788 
2° 10 
158"12 
• 791 
1.97 
158.22 
.865 
2.20 
158.82 
1908.81 
2.09 
158.39 
A and D (10.4) 
1907.791 239?93 213^69 Single dist. 
.865 240.20 213.18 “ “ 
1907.83 240.06 213.43 
There are no other measures of these stars. The observation 
in Engelhardt ascribed to the Lalande star is given: 
I 893-99 3 2 7°43 8o':o9 311 7.0...9.9 
I could not identify this with any star in the vicinity. 
The proper motion of L 3962 is given: 
Stumpe o"36i in i23?5 
Paris 0.366 in 122.2 
Porter 0.356 in 128.7 
6 Persei 
( 5 - 5 -..10. 
0) 
R. A. 2 h 5 ,n 38" 
Decl. + 
50 ° 30' 
1907.731 
70°43 
I 3 i"i 8 
•750 
70.50 
131.05 
• 772 
70.38 
131.19 
have the following measures of th 
e small star 
: 
1853.71 
75 “82 
I46'.'58 
3 n 
02 
1873.14 
74.10 
140.40 
in 
02 
1881.14 
73 -18 
139.56 
in 
02 
1907.75 
70.44 
131-14 
3 n 
|3 
Therefore the proper motion of the large star is: 
o "373 in H4°o 
From meridian observations: 
Auwers 
Greenwich 
Newcomb 
'Boss 
0.374 in 
0.357 in 
0.388 in 
0.386 in 
H 7°5 
II 5-4 
115.4 
115-8 
DM (67°) 
191 (7.8. 
•• 9 - 3 ) 
R. A. 2” 5 m 54 s Decl. + 67° 7' 
1907.731 
i 04?40 
42 " 3 S 
• 750 
104.13 
42.48 
.772 
104.25 
42.55 
The small star is DM (66°) 193. The proper motion is de¬ 
duced from the following positions : 
1875.6 io8?8o 62" 4 0 A. G. Chris. 
1892.21 106.62 52.03 211 Eng 
I 907 . 7 S 104.26 42.47 311 (3 
These give for the motion of A : 
o" 626 in ii 8?3 
From meridian positions: 
Porter 0^567 in 122^5 
A. G. Chris. 0.560 in 124.1 
DM (44°) 456 (8.6...10.6) 
R. A. 2 h io m 32" Decl. + 44 0 39' 
1908.862 35-38 98"8o 
.882 35.03 98.68 
.884 35.13 98.72 
1908.87 35.18 98.73 
Sometimes catalogued as a red star, but not red now. Ap¬ 
parently unchanged. 
1879.15 34?90 99"00 in B 1 
1879.64 34-50 98.16 in B 1 
1894.92 35-20 98.86 Donner 
The last position is photographic. 
DM (49°) 628 (7.2...10.7) 
R. A. 2 h n m 19 s Decl.+ 49 0 35' 
1908.845 354°07 i36"83 
.862 353-85 136.86 
.882 353-75 137 .25 
1908.86 353.89 136.98 
9 
