Burnham: Measures of Proper Motion Stars 
DM (22°) 1620 (7.2...10.0) 
R. A. 7" 8 m 23“ Decl. + 22 0 10' 
1908.769 
263?30 
94"49 
.788 
264.03 
94-52 
.843 
263.90 
94.88 
1908.80 
263.74 
9463 
The only prior measures 
are: 
1879.52 263?50 
95 -' 4 ° 
2n 
Further observations are needed. The principal star has 
been called red, but only yellowish now. 
Oxford (Z 26°) 20681 (io.l) 
R. A. 7 h io’” 46*57 Decl. + 27 0 3' 32"8 
This is the 9.2 m star, DM (27 0 ) 1350. The place for 1900 
is from the Oxford Astrographic plate taken 1908.08. From a 
comparison with an earlier plate the proper motion is found: 
o"i5i in i8o?o 
A and C (9.9.. .12.7) 
1910.760 
I 34°93 
29"02 
.780 
134-73 
29-34 
.856 
135-97 
29.46 
1910.80 
135.21 
29.27 
There is a 14.5 m star 8" or 10" from A. 
A and D (11 
•i) 
1907.772 
76U0 
I 24"75 
.810 
76.40 
125.22 
■ 997 
76.93 
124.74 
A and E (10.9) 
1907.810 
3 io ?93 
I 38 '.' 8 3 
7-997 
311.02 
138.29 
8.000 
311.18 
139-05 
The results of all the 
measures are: 
AC 
1879.98 
22? 70 
97"o2 in 
P 3 
1907.89 
23.37 
98.48 4n 
P 
AD 
1879.99 
76.70 
123.15 2n 
P 
1907.86 
76.58 
124.90 3n 
P 
AE 
1879.99 
309.95 
138.98 2n 
P 
1907.86 
311.04 
138.72 3n 
P 
From these measures 
the motion of A is: 
AC R. A. 
— o"o 5 8 
Decl. — o'.'o32 
AD 
• 059 
.023 
AE 
.066 
.068 
—0.061 
— 0.041 
Giving for the proper 
motion of (3 Canis Minoris: 
o"o73 in 236?! 
From meridian positions 
we have: 
Auwers 
o"o69 
in 
247 °i 
Newcomb 
0.066 
in 
225.4 
Boss 
0.066 
in 
229.6 
T) Cants Majoris (2.5.. .8.0) 
R. A. 7" I9 m 21 s Decl. — 29 0 4' 
1909.206 
285?12 178"72 
.227 
285.35 178.71 
1909.22 
285.23 178.71 
The only prior measure is 
the following: 
1880.00 285?o 
178 ('65 2ii P 3 
Obviously these stars have no proper motion. This is 
apparent from the meridian observations : 
Auwers 
o"o30 in 298?0 
N ewcomb 
0.008 in 31.0 
Boss 
0.010 in 293.6 
There is a large error in the relative positions from 
Washington zones. 
1849 285 ?7 
185"3 Wash. Z. 
187s 285.5 
178.6 Cord. G. C. 
R. A. 7 h 
(3 Canis Minoris 
20 m 39 s Decl. + 8° 32' 
1907.772 
A and C (11.2) 
23° 43 
98 "o 5 
7.810 
23.23 
98.23 
7-997 
23.35 
98.94 
8.000 
23.48 
98.69 
22 Lyncis (5.5.. .10.3) 
R. A. 7 h 20 111 49 s Decl. + 49 0 54' 
1909.703 303^78 i69"i7 
.722 303.70 169.42 
.744 303-70 169.20 
1909.72 303-73 169.26 
The small star has been previously measured as follows: 
1888.29 303?87 i 65"92 2n Eng 
1894.25 303.77 167.27 2n Eng 
From the change shown in these observations, Engelhardt 
inferred that the small star, after allowing for the accepted 
J movement of 22 Lyncis, had a large proper motion of o"i90, 
and evidently this must be the case if the measures were sub¬ 
stantially correct; or else the motion of the large star as de¬ 
rived from meridian observations is much too small. As the 
chances are enormously against a star of this magnitude having 
any sensible movement, it was carefully re-measured. Ob¬ 
viously the suspected motion is not confirmed by the recent 
observations. One or the other of the early positions must be 
affected by a considerable error, accidental or otherwise. If 
we reject the first, and compare the other with the results 
given above, we have substantially the proper motion of A as 
given in the star catalogues. 
Measures 
0" 129 
in 
I20?8 
Groombridge 
0.135 
in 
124.8 
Auwers 
0.089 
in 
154-3 
Boss 
0.145 
in 
125.8 
28 
