Burnham: Measures of Proper Motion Stars 
2103. 02 (App.) 44. (6.2...7.2) 
R. A. 4 h 8 m 42 s Dccl. + 45 0 55' 
1908.709 
322?05 
58 " 3 S 
.711 
322.00 
58.29 
.728 
321.95 
58.19 
1908.72 
322.00 
58.28 
No relative motion since 
1875- 
2106. 
H VI. 98. (6.2.. 
• 6 - 7 ) 
R. A. 4' 
1 9 m 7 s Deck + 5 
° 55 ' 
A and B 
1907.845 
3 i 5°23 
6 4 "74 
.865 
315.15 
64.85 
.879 
315-23 
64.91 
1907.86 
315-20 
64.83 
These measures give a smaller distance. The meridian posi- 
tions in A. G. Leip. give: 
1884.0 
3 i 5°3 
64"9 
The proper motion of A 
is given 
; 
Bossert 
o"i75 
in 2io?8 
Porter 
0.169 
in 221.4 
A and C 
1907.865 
47°42 
2 I 5"78 
.879 
47-45 
215-67 
• 974 
47-43 
215-57 
1907.91 
47-43 
215.67 
The A. G. Leip. relation 
is: 
1885.3 
47°4 
2 i 3"3 
implying a proper motion for A of 0IT15. 
C and D (9.3.. 
• 9 - 4 ) 
1907.865 
138^40 
52 " 7 i 
.879 
138.85 
52.64 
•974 
138.75 
52.83 
1907.91 
138.67 
52.73 
C and D arc DM (5 0 ) 616 and 617. Repeating the measures 
of these stars after a proper interval of time will furnish an 
accurate and independent value of the proper motion of AB. 
2109. 
40 Eridani. N 
5 18. 
R. A. 4" 9 ,n 52 s Decl. — 
7 ° 47 ' 
A 
and a (11.0) 
1907.810 
5 i °43 
ii3"67 
7.845 
51.20 
1x3.76 
7.865 
51.28 
113.89 
8.000 
51-60 
114.87 
8.022 
51-33 
114.67 
1907.91 
51-37 
114.17 
1907.845 
A and b (11.5) 
7°93 
2 IO'.' 8 i 
7.865 
7-93 
210.53 
8.000 
8.12 
211.09 
8.022 
8.20 
211.43 
1907.93 
8.05 
210.96 
The most probable value of the proper motion of the large 
star from the ten sets of measures of A a and three of A b 
(1850-1907) is as follows: 
A a R. A. — 2"235 Decl. — 3"4ii 
A b 2.247 3-409 
Taking the mean, the corrected proper motion of 40 Eridani 
is: 
4"o8o in 2i3?3 
Other values from meridian positions are: 
Auwers 
4-054 
in 
2 II ?9 
Porter 
4.108 
in 
2x2.6 
Kustner 
4.082 
in 
212.9 
Newcomb 4.081 
in 
212.7 
Boss 
4.082 
in 
212.7 
B and C 
1907.675 
44°9 
2 "62 
.810 
42.0 
2-43 
.845 
44.2 
2.51 
.865 
44.2 
2.40 
1907.80 
43-8 
2-49 
1908.709 
42?2 
2"6 5 
•750 
40.4 
2.62 
.824 
45-3 
2.47 
.884 
43-3 
2.73 
• 974 
41.8 
2.36 
1908.83 
42.6 
2.57 
2116. ON 
(App.) 46. 
(7 
.0...7.3) 
R. A. 4" 1 i m 25 s Decl. + 55 0 14' 
1907.578 
I 59°57 
98 ''93 
.581 
159.80 
98.86 
.638 
159-75 
99.10, 
1907.60 
159-71 
98.96 
A 
and a (12 
0) 
1907-581 
i88?6 
3 3 ”67 
No relative motion. 
The proper motion of A is given 
A. G. Harv. o'.'o9 
in 
1S0 0 
2121 . 
S 445 - ( 6 . 5 -• 
.7.2) 
R. A. 4" 11* 
1 56 s Decl. + 49° 58' 
A and B 
1907.578 
327 ° 2 5 
73-75 
• 58 x 
327.47 
73.56 
.638 
327.55 
73 92 
1907.60 
327.42 
73-74 
122 
