Burnham: Measures of Proper Motion Stars 
If there is any proper motion, it seems to be common to the 
three components. 
The principal star is Piazzi VI. 62. 
A. G. Berlin o"ioi in 270° 
3327 . H 2315. (11.7...11.7) 
R. A. 6 h I5 m 6 s Decl. — 7 °i 4 ' 
1 9 10- 933 3 -i 6"5 o 
11.796 3-4_Mi 
1911- 36 3-2 6.45 
The only other measures are my own in 1901. 
H 2315 is in h 386, the principal star of which is SD (7 0 ) 1384. 
Most of the stars are 10 to 13 m. 
3339 . 2896. (8.3...8.7) 
R. A. 6 b i6 m 2i" Decl.+ 51° 56' 
A and C (10.9) 
1910.684 
324-30 
40^89 
.701 
323-70 
40.71 
.703 
323-92 
40.64 
1910.70 
323-97 
40.75 
The proper motion given A from meridian observations 
seems doubtful from the measures of this star. 
1880.48 324°. 42 40" 36 211 Bl. 
A. G. Harv. 0:047 in 90° 
3379 . 2905. (8.0...10.0) 
R. A. 6“ 20” 31* Decl.+ 40°i2' 
A and C (10.5) 
1908.884 
147:53 
151:41 
.898 
147-73 
I 5 I -52 
.900 
148.34 
151-45 
1908.89 
147.87 
151-46 
From the earlier positions it is apparent that 2 905 has no 
sensible proper motion. The second is from the Astrographic 
Catalogue. 
1880.48 147:52 151:54 2n Bl 
1894.95 147-70 151.20 Donner 
3381. 2906. (8.3...9.5) 
R. A. 6 h 20 m 34 s Decl. + 37° 27' 
A and C (10.2) 
1910.701 
I 4 I ?20 
155:28 
.720 
141.17 
155-58 
• 739 
140.83 
155-62 
1910.72 
141.07 
155-49 
In the early measure the distances are discordant, and differ 
as much as i"7, hence change is doubtful. 
1880.60 140:78 154:57 3n Bl. 
3349 . 8 Monocerotis. 2 900. 
(4.0...6.7) 
R. A. 6 h I7 m 25 s Decl. + 4 0 39' 
A and B 
I 9 H -775 
25:9 
13:25 
.796 
27-3 
13-21 
.815 
28.4 
13-15 
1911.79 
27.2 
13-20 
A and C (12.2) 
1911.777 
254:50 
93:42 
.796 
254-17 
94.30 
.832 
254.67 
93.43 
1911.80 254.45 93.72 
Large stars relatively fixed. No other measures 
proper motion of A is small and uncertain: 
Auwers 
o!'02I 
in 
299:1 
Boss 
0.012 
in 
255-9 
Newcomb 
O.OII 
in 
325-7 
3375 . 2 
904. (9. 
.0.. 
.10.2) 
R. A.6 h 20™ 
16 s Decl. + 5i°5i' 
A 
and C (8 
- 5 ) 
1910.684 
92.60 
237:78 
.701 
92.75 
237-75 
1910.69 
92.67 
237.76 
Apparently no proper motion in either. 
1880.59 92:30 237:24 3n Bl. 
3383. 15 Geminorum. 
Sh 70. (6.8...8.2) 
R. A. 6" 2Q m 37 s Decl. + 20° 52' 
A and B 
1911.720 
• 755 
• 775 
204:45 
204.65 
204.78 
29:00 
29.08 
29.00 
I 9 H -75 
204.63 
29.03 
A and C (12.8) 
1911.720 
34^8 
77:68 
• 775 
33-90 
77-73 
I 9 II -75 
34-09 
77.70 
The faint star for the 
proper 
motion of A, 
measures: 
Auwers 
0:058 
in 237:8 
Hedrick 
0.058 
in 201.6 
Boss 
0.063 
in 206.6 
3402. 11 Monocerotis. (3 570. 
R. A. 6 h 23 m o 8 Decl. —6° 57' 
A and D (5.0.. .12.5) 
1911.796 
54:6 
25:72 
11.942 
55-1 
25.82 
12.046 
56.9 
26.06 
1911.93 
55-5 
25.87 
No other 
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