Burnham: Measures of Proper Motion Stars 
A and a (12.0) 
1912.526 159°° 24" 56 
•545 158-8 24.36 
.562 159-0 24.66 
1912.54 158.9 24.53 
The change in AB is probably due to the proper motion of 
the larger star, though B might have a smail movement of its 
own. The measures (1875-1912) give for the apparent motion 
of A: 
o"o96 in i8o°4 
From the star catalogues 
we have 
; 
Paris 
o"i7i 
in 
I 58 ?i 
Porter 
0.145 
in 
163.2 
Boss 
0.160 
in 
165.1 
The continued measures of the faint star near A will give an 
independent value. 
11464. 
P 696. (8.0.. 
.8.0) 
R. A. 2i h 58 r 
‘'43 s Decl. + 15 0 17' 
AB and C (8.3) 
1912.638 
3 i 8?55 
59 "?o 
.660 
318.53 
59-89 
• 675 
318.30 
59.66 
1912.66 
318.46 
59-75 
C 
and D (9.3) 
1912.660 
27° 30 
85" 18 
•675 
27.62 
85-30 
1912.67 
27.46 
85.24 
The proper motion of the close pair is: 
A. G. Ber. o''o92 in 2o6°o 
C and D are respectively DM (15 0 ) 4556 and 4557. For 
comparison there is only the following: 
AC 
1870 
3i6?6 
58"6 
A. G. Ber 
1900.80 
317.2 
59-48 
in Doo 
AD 
1870 
24-5 
84.6 
A. G. Ber 
From a comparison of the A. G. position of C with the 
present relation, the proper motion of AB is: 
0^048 in I93?6 
11472. 
O2460. (7.3... 
11.7) 
R. A. 2i h 
59 m 32 s Decl. + 
1° 12' 
A and B 
1908.537 
347 ° 9 
8"86 
.556 
347-4 
8.92 
• 573 
347-6 
8.72 
1908.56 
347-6 
8.83 
A and C (11.0) 
1908.537 
4°°4 
i 6"75 
•556 
4 i -3 
16.73 
•573 
40-3 
16.73 
1908.56 
40.7 
16.74 
With the measures by 02 and Hu (1849-1908) we have for 
the proper motion of the large star: 
AB R. A. + o"oi9 Decl. — o"o49 
AC 0.017 0.038 
+ 0.018 —0.0435 
Therefore the proper motion of A is: 
o?047 in I57?5 
11483. | Cephei. 22863. (4-7---6.5) 
R. A. 22” o m 18 s Decl. + 64° 2' 
A and C (12.7) 
1912 
■353 
199°59 
95 "03 
.408 
198.98 
95.60 
.411 
199-33 
95-30 
1912 
• 39 
199.30 
95-31 
The large stars form 
a system of 
the 61 Cygni type. No 
other measures of the small star. The proper motion of A is 
given from the star catalogues: 
Auwers 
0M95 
in 
70?2 
Paris 
0.254 
in 
75 -i 
Porter 
0.197 
in 
70.4 
Boss 
0.231 
in 
68.2 
11499. 19 Cephei. 3 697. 
(6.0...12.0) 
R. A. 22 h I 1 
”27 s Decl.+ 61° 42' 
1912 .753 
92° 5 
I 9"87 
•755 
92.8 
19.49 
.791 
92.7 
19.83 
1912.77 
92.7 
19-73 
The four |3 positions 
of the faint 
star (1878-1912) show 
clearly that the proper motion of the brig 
ht star is substantially 
in declination, and not in R. A. as appears from the meridian 
observations. The several results are : 
Measures 
o"o32 
in 
i86?7 
Auwers 
0.081 
in 
114.0 
Groombridge 0.014 
in 
37-8 
Boss 
0.011 
in 
95-0 
11504. 
22865. (8.5.. 
.9.0) 
R. A.22 h I 
m 45 s Decl. + 69° 38' 
1908.655 
188! 1 
21 ”27 
.671 
188.9 
21.40 
•673 
189.0 
21.49 
1908.67 
188.7 
21.39 
No third star near enough to measure. The apparent motion 
of A from the measures is: 
o"o88 in 47?2 
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