Burnham: Measures of Proper Motion Stars 
From the (3 measures (1881-1912) the proper motion of 47 
Cassiopeiae is: 
o"i28 in I05?9 
From meridian observations we have: 
Auwers o"i25 in H4?6 
Boss 0.143 in 112.2 
1048. 2 198 rej. (8.5...8.7) 
R. A. i* 53 m 52 s Decl. + 6° 7' 
My early measures are omitted in the General Catalogue. 
There is no change in 25 years. 
1879.88 H7?2 45 "47 2n (3 3 
1050. 2197. (7-3-• -8.3) 
R- A. i h 53 m 59 s Decl.+ 34° 43' 
A and C (13.2) 
1909.802 
.818 
.838 
68? 70 
68.40 
67-95 
So". 92 
50.55 
50.49 
1909.82 
68.35 
50.65 
Measured for an independent determination of the proper 
motion of A. This from the measures 
of AB is o?io8 in 53?o. 
1051. 49 Cassiopeiae. |3 785. 
(5-5---i3-o) 
R. A. i h 54 m 
4 s Decl. + 75 0 32' 
A and B 
I 9 H -775 
243 ?4 
5"56 
•777 
243-7 
5-34 
-835 
246.2 
5-32 
I 9 II -79 
244.4 
5-4i 
A and C (14.2) 
19x1.775 
I28?5 
28?0O 
• 777 
128.8 
28.68 
.813 
127.9 
27-45 
I 9 II -79 
128.4 
28.04 
There is no sensible change in AB since 1881. The proper 
motion of 49 Cassiopeiae 
is very uncertain in direction and 
amount from the catalogues; I have, therefore, measured an 
exceedingly faint third star. 
Auwers 
o"o4i in 
242 ?2 
Boss 
0.018 in 
20 S.0 
1074. 10 Arietis. 2208. 
(6.2...8.4) 
R. A. i h 56 m 
50 s Decl. + 25 0 21' 
AB and C (13.5) 
1912.562 
I43?55 
99 '.' 6 i 
.622 
143-13 
98.44 
.638 
144-30 
98.77 
1912.61 
143-66 
98.94 
No other measures of the faint star. 
The proper motion 
the binary system is given : 
Auwers 
o!'i 23 in 
83°9 
Bossert 
0.163 in 
90.0 
Boss 
0.139 in 
83.4 
1083. 61 Ceti. 
H V. 102. 
(6.0...9.0) 
R. A. i h 57 m 
39 s Decl. - 
- o° 55' 
A and B 
1908.652 
I 93°5° 
42"68 
.671 
193-57 
42.96 
.689 
193-58 
43 -t6 
1908.67 
193-55 
42.93 
A and C (11.9) 
1908.652 
3 2 5°75 
83*27 
.671 
325.88 
82.71 
.689 
325-68 
83.58 
1908.67 
325-77 
83.19 
The measures of C should be continued. The motion of A 
Boss 
o!'o88 in 
116? 1 
Auwers 
0.081 in 
135-5 
Bossert 
0.144 in 
123.7 
1094. S405. (6.0.. 
.6.2) 
R. A. i h 
59 m 14 s Decl. + 79° 7' 
A and B 
1912.545 
274?6o 
5 5 7 84 
.562 
275.08 
55-99 
• 564 
274.83 
55-71 
1912.55 
274.84 
55-85 
B and C (13.5) 
1912.562 
224?55 
51T17 
• 564 
224.70 
50-94 
1912.56 
224.62 
51-05 
The large stars are Groombridge 445 and 443. As there is no 
relative change, the proper motions must be the same. From 
the Groombridge catalogue we have: 
A o"o40 in 4?2 
B 0.057 in 1.9 
The meridian positions show no relative change : 
1810 
27i?8 
55*3 
Groombridge 
1842 
276.2 
56.2 
O. Arg. N. 
1103. A. 
G.31. (9-5-• 
.12.8) 
R. A. 2 11 o ,n 
25 s Decl. + 
T4° 5' 
1908.785 
I 47°2 
32 "9 1 
.788 
146.1 
31-59 
.824 
146.9 
32-37 
1908.80 
146.7 
32.29 
103 
Disagrees with former positions in angle and distance. 
