Burnham: Measures of Proper Motion Stars 
A and C (n.2) 
1911 -373 
1 56°97 
43 " 6 i 
• 392 
158.04 
43-91 
•395 
157-37 
43.62 
1911.39 
I 57-46 
43-71 
No other 
measures. The 
proper motion of the large star is 
small: 
Groombridge 
o"oi7 in I25?5 
Boss 
0.020 in 117.3 
DM (53°) 2911 (9.6...12.8) 
R. A. 22” 
27 m 47 s Decl. + 53° io' 
A and B 
1912.427 
209?6 
22"95 
• 430 
209.7 
22.60 
• 465 
209.5 
23-25 
1912.44 
209.6 
22.93 
A and C (10.7) 
1912.427 
I 94°23 
48”49 
• 430 
194.80 
48.45 
• 465 
194.81 
48.91 
1912.44 
194.61 
48.62 
From a comparison of photographic 
plates, Belanowsky 
( Mitteilungen, Pulkowa V) gives A a large proper motion : 
i"23 in 83?! 
I have, therefore, measured the nearest two stars, the larger 
of which should be on 
the photograph. A 
measure of that on 
the plate will at once settle the question of proper motion. 
The nearest catalogue star, DM (52 0 ) 3236, which is about 
7' s of the proper motion star, has a small companion not pre- 
viously measured: 
A and B (8.8.. .12.8) 
1912.408 
i8i?i 
i6':oi 
.427 
i8r.6 
16.02 
1912.41 
181.3 
16.01 
DM (64°) 1713 (7.3...9.2) 
R. A. 22” 4i m 46 s Decl. + 64° 40' 
1909.438 
• 473 
.496 
240 ?o 7 I46'.'6i 
239.88 146.61 
240.26 146.84 
1909.47 
240.07 146.69 
The smaller star is DM (64°) 1711. One of these stars, and 
presumably the larger, may have a small proper motion. 
1878 240?2 i 45"9 A. G. Hels. 
1879.15 239.77 I45-OI 2n B 1 
Groombridge 
o"o8i in 87?2 
Lalande 
44708 (8.0. 
- 9 - 5 ) 
R. A. 22"45 
m 26 s Decl. 
+ 
Go 
0 
A and B 
1908.460 
337*70 
I 98"94 
• 479 
337-95 
198.77 
• 556 
337-74 
199.08 
1908.49 
337 -80 
198.93 
B 
and C (11.0) 
1908.460 
193*17 
106'(52 
• 479 
193-37 
106.45 
•556 
193-50 
107.18 
1908.48 
193-35 
106.72 
B is DM (13 0 ) 5005. For comparison we have the following 
measures of AB: 
1853-68 
343*31 
20o"56 
2n 
02 
1865.91 
342.08 
200.18 
in 
02 
1883.73 
340-22 
199-59 
in 
H 2 
1891.80 
339-25 
199.67 
2n 
Eng 
1908.49 
337 - 8 o 
198.93 
3 n 
3 
Therefore the proper motion of Lalande 44708 is: 
o"357 in 66?o 
The value heretofore given from meridian observations 
appears to be too large: 
Stumpe 
o" 4 i 4 
in 58^2 
Porter 
0.444 
in 58.8 
Boss 
0.474 
in 63.2 
I have measured a third 
star to 
make it certain hereafter 
that B has no motion. 
60 Pegasi (6.4...8.7) 
R. A. 23" 6 m 0" Decl. + 26° 12' 
1909.381 294?50 231"09 
.496 294.30 231.88 
.512 294.33 231.13 
1909.46 
294.38 
231-47 
The prior measures are : 
I853-77 292?10 
238"43 
211 
ON 
1874.82 292.97 
235-97 
in 
ON 
From these positions the 
corrected 
proper motion of 60 
Pegasi is: 
o"209 in 239?4 
This has been given from meridian observations: 
Auwers 
o"225 in 
242^2 
Porter 
0.236 in 
240.6 
Paris 
0.207 in 
239-6 
Boss 
0.229 in 
237.8 
As a further check on this movement, I have measured a 
much fainter star: 
A and a (11.3) 
1909.496 
240?20 
86" 4 8 
• 5 i 5 
240.70 
86.81 
•531 
240.60 
86.77 
1909.51 
240.50 
86.69 
