Burnham: Measures of Proper Motion Stars 
Oxford (Z 26°) 74272 (10.2) 
R. A. 2i h 39 m 30T34 Decl. + 26° 56'7"4 
This is DM (26°) 4251 (9.3). The place for 1900 is from a 
plate taken 1907.77 for the Oxford Astrographic Catalogue. 
The photographic positions give for the proper motion: 
o'?348 in 240?7 
A and B (9.4.. .10.3) 
1910.375 
i8?73 
I 24 w 47 
.397 
18.67 
124.65 
•436 
18.67 
124.84 
1910.40 
18.69 
124.65 
A and DM (26°) 4256 
1910.40 A R. A. + 79?01 A Decl. —■ 122'?5 (3 
1875 78.30 127.8 A. G. 
A and DM (26°) 4249 
1910.40 AR. A. — 26?80 ADecl. — i76"3 (3 
1875 27.24 I77-I A. G. 
The proper motion is doubtful at least. A later set of meas¬ 
ures of AB will at once show what the fact is. The last com¬ 
parison star is A 299. 
Oxford (Z 26°) 74061 (8.4) 
R. A. 2i b 39 m 3 8?os Decl. + 26° 3' 32"7 
This star is DM (25°) 4607 (8.2). Place for 1900 from an 
Oxford plate taken 1907.77. The photographic positions give 
a proper motion: 
o"i99 in 59?4 
A and B (8.2... 12.9) 
1910.436 
3i9°8o 
30^98 
• 455 
318.18 
30.85 
1910.44 
318.99 
30.91 
A and 
DM (25 0 ) 4602 (9 
.2) 
1910.44 
AR. A.- 
-40? 1 A Decl. - 
— 85 "5 
P 
1875 
39-6 
81.3 
A. G. 
A and 
DM (25 0 ) 4604 (9 
• 3 ) 
1910.44 
AR. A.- 
-29? 4 A Decl. ■ 
+ I 48"4 
P 
1875 
28.6 
151.1 
A. G. 
DM (25 0 ) 4602 and 4604 
1910.44 32?15 275"43 
2n 
P 
1875 
32.6 
275-8 
A. G. 
DM (49°) 3673 (9.1... 
11.1) 
R. A. 2i h 
50 m 48 s Decl. + 
49 ° 56 ' 
1909.342 
258?02 
8 3 "8o 
• 5 i 5 
257-93 
84.16 
• 53 i 
258.05 
84.38 
1909.46 
258.00 
84.11 
The larger star is red. The prior measures disagree in dis¬ 
tance, but probably unchanged. 
1876.94 258?32 
1879.45 257.90 
Lalande 42883 (7.4... 13.8) 
R. A. 2i h 53 m 22 ! ’ Decl. + 29 0 15' 
1909.458 133°35 29^94 
.512 133.70 29.43 
.515 134-10 29.92 
1909.49 13372 29.76 
No other measures. The principal star has a large proper 
motion: 
Stumpe 
o"57o 
in 
224? 2 
Porter 
0-559 
in 
225.9 
Paris 
0-549 
in 
223.0 
16 Cephei (5.2...12.0) 
R. A. 2i h 57™ 
1 32 s Decl. + 72 0 37' 
1910.551 
I 74 ° 7 § 
I 34 "i 2 
•589 
174.02 
134.40 
.605 
173-99 
134-40 
1910.58 
174.20 
134-31 
No other measures. For the proper 
motion we have: 
Auwers 
o"i 87 in 
20O?8 
Boss 
0.173 in 
202.7 
a Aquarii (3.0.. . 
12.0) 
R. A. 2i h 59* 
" 37 s Decl.-o° 54' 
1907.463 
4 i °25 
II2"80 
.482 
41.90 
113-32 
.523 
41.22 
113.04 
1907.49 
41.46 
113-05 
The proper motion of a 
Aquarii is very small, and altogethe 
uncertain so far as the meridian observations are concerned. 
From the leading authorities we have: 
Auwers 
(F. C.) 
0"0I2 
in 
279-5 
Auwers 
(A. N.) 
O.OOS 
in 
248.2 
Newcomb 
0.014 
in 
98.3 
Boss 
0.015 
in 
114.0 
The only measures 
; of the small star ; 
are: 
1879.50 
41-5 
ii 4 'T >4 
2n 
1907.49 
41.46 
113-05 
3 n 
It seems certain that the motion of the large star is in the 
first quadrant, and nearly in the direction of the faint com¬ 
panion; and that the values from star catalogues are incorrect. 
A continuation of these measures will finally give the exact 
motion. The two positions now available give the proper 
motion: 
o"o57 in 44° 5 
l Pegasi (3.8. ..II. 2) 
R. A. 22 h i m 26" Decl. + 24 0 46' 
1907.312 
220?52 
io 3"53 
.463 
220.40 
103.94 
.482 
220.55 
103.67 
•485 
219.95 
103.73 
1907.43 
220.35 
103.71 
84"55 
83.28 
in 
in 
B 1 
B 1 
7i 
