Burnham: Measures of Proper Motion Stars 
A and D (12.2) 
1909-381 
95-77 
75 "99 
•493 
95-53 
75-69 
.496 
95 -60 
75-68 
1909.46 
95-63 
75-79 
large error in declination is obvious. If this is assumed to be 
i', the A. G. position with the measures would give the proper 
motion: 
07336 in 42?8 
The principal star is red. 
are too discordant for any in 
The only other measures of AD 
ference as to change 
1879.31 96757 
78739 m 
B 1 
1879.85 95.18 
80.12 in 
B 1 
27 Cygni (5.6... 
13 - 8 ) 
R. A. 20 h i m 
54 s Decl 
- + 35 ° 38 ' 
A and B 
1909.515 
.6275 
16721 
•531 
64.1 
16.28 
•534 
64.7 
16.10 
I 909-53 
63.8 
16.20 
A 
and C (11.7) 
I 909 - 5 I 5 
154-20 
40 "17 
•531 
154-47 
40.11 
•534 
I 54-83 
40.32 
I 909-53 
154-50 
40.23 
The small stars have 
not been seen before. Only a short 
interval will be required to show whether or not they are mov- 
ing with the large star. 
The proper 
motion of that is given : 
Auwers 
o7 4 85 
in 2io7o 
Paris 
0.467 
in 209.2 
Porter 
0.477 
in 208.7 
Boss 
0-495 
in 207.8 
Groombridge 
3042 (6.0. 
•- 9 - 3 ) 
R. A. 2o h 3 m 4 s 
Decl. + ‘ 
52 ° 49 ' 
1908.370 
124795 
170753 
•383 
124.79 
170.80 
•403 
124.85 
169.73 
.406 
124.80 
170.46 
1908.39 
124.85 
170.38 
Piazzi 
XX. 23 (7 
2.. 
.9.2) 
R. A. 2o h 
5 m 39” Decl. + 15 0 49' 
A and B 
1908.425 
151798 
152743 
•444 
152.18 
151.86 
.460 
151-77 
152.10 
•479 
152.00 
152.73 
1908.45 
I 5 I -98 
152.28 
B and C(11 
6) 
1908.425 
270748 
63792 
.460 
270.68 
63-63 
•479 
270.55 
63.72 
1908.45 
270.57 
63.76 
B is DM (15 0 ) 4075. No other measures of C. 
1893.80 152773 144.702 2n Eng 
1908.45 151.98 152.28 4n (I 
These positions give for the proper motion of the principal 
star: 
07582 in 319^4 
The correction to the former values from meridian observa¬ 
tions is small. 
Stumpe 
07587 
in 
30774 
A. G. Berlin 
0.580 
in 
313-4 
Porter 
0.596 
in 
312.6 
\ Capricorni 
( 5 - 8 . 
. .12 
.0) 
R. A. 20 h 5 m 45 s Decl. — 12° 58' 
1909.666 
258797 
7 i 757 
• 703 
258.62 
71.48 
.706 
258.87 
71.81 
1909.69 
258.82 
71.62 
No other measures. 
The proper motion is giv 
The small star is DM (52 0 ) 2626. This is given in the cata¬ 
logues O. Arg. N. and A. G. Harvard. The direct measures 
are: 
1893.98 I23?27 171784 3 n Eng 
1908.39 124.85 170.38 411 |3 
From these positions the proper motion of Groombridge 3042 
would be: 
Measures 
07342 
in 
5 i 7 o 
Stumpe 
0.304 
in 
40-3 
Porter 
0.307 
in 
39-6 
Groombridge 
0-334 
in 
40.0 
A. G. Har. 
0-347 
in 
43-3 
Boss 
0-334 
in 
41.0 
The two positions of A in the first catalogue referred to 
differ too much to be used in this connection. In the other the 
Auwers 
07239 
in 
13878 
Porter 
0.259 
in 
138.6 
Newcomb 
0.253 
in 
138.3 
Boss 
0.269 
in 
135-9 
DM (47°) 
3031 (9.4. 
--9-5) 
R. A.2o h 5 m 
51 s Decl.+ 47° 3i' 
1909.342 
139742 
145715 
.476 
139-45 
145.11 
•493 
139-85 
145-65 
1909.44 
139-57 
145-39 
A is reddish. Apparently without any proper motion. 
1879.05 139-68 I 45"05 2n B 1 
5 
61 
