Burnham: Measures of Proper Motion Stars 
6700 . 2 1798- (7-5-• -9-3) 
R. A. I3 h 55 m 17* Decl. + 78° 59' 
From the measures of AB by 2 , A, 02 , HI and |3 (1830-1911), 
and the measures of the faint star C (1886-1911) the proper 
motion of A is : 
1907.271 13° 3 7".2 5 
• 348 _13-9_7-23 
1907-31 13-6 7.24 
No change. 
6701 . x Virginis. Sh 171. (4.3...8.7) 
R. A. I3 b 55 m 33’ Decl. + 2° 8' 
AB o"o44 in i 64?8 
AC 0.028 in 146.3 
With a longer interval for AC, the results would doubtless 
be identical. 
The 6 m star, D, is known to have some proper motion; not 
in Boss’ General Catalogue. The measures of D from A of 
2 1831 show an apparent motion of D, assuming the other to 
be fixed: 
o"i25 in 330?8 
A and B 
1912.164 
.236 
.296 
290?03 
289.70 
289.68 
8 o "37 
79.60 
79-59 
1912.23 
289.80 
79-85 
B 
and C (13.0) 
1912.236 
21 ? 12 
I 57 " 8 5 
.274 
21.20 
158.99 
.296 
20.82 
158.79 
1912.27 
21.05 
158.54 
Complete measures on the necessary number of nights to 
give a safe result are entirely wanting in the first half century. 
The measures of the small star since 1823 tend to show no 
relative motion. I have therefore connected a very faint star. 
The proper motion of x Virginis, derived from meridian 
positions, is uncertain in direction: 
6802 . 1 Bootis. 2 26, App. I. (4.9...7.5) 
R. A. i4 h n m 56 s Decl.+ 51° 55' 
A and C (12.7) 
1911.260 197?10 85"75 
.337 197.08 85.62 
•353 I 97 -Q 5 _ 85.59 
1911.32 197.08 85.65 
For the common proper motion of AB. No other measures. 
The motion of A from the star catalogues is given: 
Auwers 
o"i7o 
in 
3C»o?o 
Newcomb 
0.160 
in 
301.7 
Boss 
0.169 
in 
300.6 
Auwers 
o"o 33 
in 
I92?8 
Newcomb 
0.033 
in 
151-8 
Boss 
0.032 
in 
142.0 
6705 . 2 
1797 - (8.2.. 
- 8 - 5 ) 
R. A. 13” 56 m 
18 s Decl. + 20 0 i' 
1910.148 
i 58?4 
2o"87 
.167 
159-5 
20.88 
.225 
159-4 
21.02 
1910.18 
159 -1 
20.92 
No change since 1828. 
6801 . 2 1830. (8.5...9.8) 
R. A. 14” n m 52 s Decl.+ 57 0 13' 
A and C (12.5) 
1911.260 
-334 
• 337 
8 i ?30 
80.10 
80.37 
35-53 
35-67 
35-55 
1911.31 
80.59 
35-58 
A 
and D (5.7) 
1911.260 
6i?6o 
I 4 i "39 
•334 
61.87 
141.96 
•337 
62.00 
141-59 
1911.31 
61.82 
141-65 
6803 . 3 1246. 
R. A. 14" I2 m 12 s Decl. — 25 0 16' 
A and C (5.5.. .11.0) 
1910.414 
97-98 
43'-20 
11.260 
98.73 
42.98 
n -334 
98.57 
42.87 
1911.00 
98.43 
43.02 
From the four positions of this star (1891-1911) we have for 
the proper motion of AB: 
o"439 in 318^9 
From the catalogues: 
Porter (>"458 in 307?o 
Boss 0.537 in 3 ^ 3-4 
6813 . 
P 
1272. (8.4.. 
■- 9 - 5 ) 
R. A. I4 h 
I 3 m 
22 s Decl. ■ 
OO 
t—1 
0 
$ 
4 - 
A 
and C (8.6) 
1911.260 
32i?30 
23-57 
-337 
321-33 
23.69 
• 353 
322.10 
23.92 
1911.32 
321.58 
23-73 
No change in AC. 
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