Zone 112, Master Map
Normal View
Zone Master, Normal View, 10 deg FOV
+34°00'
Gemini
θ
+32°00'
c
+30°00'
e
Auriga
d
+26°00'
f
Taurus
+28°00'
κ
ε
Mebsuta
ω
M35
07h 00m
06h 48m
06h 36m
06h 24m
06h 12m
06h 00m
Zone 112, Map 1
Normal Image
+35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 902
+33°00'
+34°00'
h380
+32°00'
A. G. 106
Espin 417
A. G. 111
A. G. 113
h379
+31°00'
Scheiner 453
h5468
STF 861
A. G. 115
STF 907
STF 834
STF 879
06h 30m
06h 25m
06h 20m
06h 15m
06h 10m
06h 05m
06h 00m
Zone 112, Map 1
Mirror Image
+35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 902
+33°00'
+34°00'
h380
A. G. 106
Espin 417
+32°00'
Scheiner 448
A. G. 111
A. G. 113
h379
h5468
STF 861
STF 907
A. G. 115
STF 834
STF 879
06h 00m
06h 05m
06h 10m
06h 15m
06h 20m
06h 25m
06h 30m
+31°00'
Scheiner 453
Zone 112, Map 2
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+30°00'
STF 834
STF 879
OS 129
STF 862
+29°00'
κ
h378
Bur 1020
Taurus
Gemini
+28°00'
Auriga
STF 888
STF 830
+27°00'
h386
+26°00'
Barton 142
STF 897
A. G. 322
h391
OSS 74
STF 889
STF 860
06h 30m
06h 25m
06h 20m
06h 15m
06h 10m
IC 2156-7
Pourteau 856 Kustner 89
Pourteau 849
06h 05m
06h 00m
Zone 112, Map 2
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+30°00'
STF 834
STF 879
OS 129
κ
+29°00'
STF 862
h378
Bur 1020
Auriga
Taurus
+28°00'
STF 888
Gemini
STF 830
+27°00'
h386
Barton 142
+26°00'
STF 897
A. G. 322
OSS 74
STF 889
Pourteau 856
Kustner 89IC 2156-7
Pourteau 849
06h 00m
06h 05m
STF 860
06h 10m
06h 15m
06h 20m
06h 25m
06h 30m
Zone 112, Map 3
Normal Image
+35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 2240
Gemini
Vilkki 13
+34°00'
STF 983
Theta Gemθ
Goyal 80
+33°00'
NGC 2274
LDS 6201
STF 984
+32°00'
Espin 339
A. G. 129
South 528
+31°00'
Scheiner 466
STF 957
A. G. 115
STF 981
h730
07h 00m
06h 55m
06h 50m
06h 45m
06h 40m
06h 35m
06h 30m
Zone 112, Map 3
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+35°00'
NGC 2240
Gemini
Vilkki 13
θ
+34°00'
STF 983
Theta Gem
Goyal 80
+33°00'
NGC 2274
LDS 6201
+32°00'
STF 984
South 528
Scheiner 466
+31°00'
A. G. 113
STF 957
STF 907 A. G. 115
STF 981
h730
06h 30m
06h 35m
06h 40m
06h 45m
06h 50m
06h 55m
07h 00m
Zone 112, Map 4
Normal Image
+30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 981
h730
+29°00'
Hipparcos 949
Milburn 688
h742
h739
+28°00'
Auriga
54
Aur
25 Gem
OS 151 rej
h406
Barton 145
Barton 144
h404
OS 149
h395
+27°00'
Fox 151
NGC 2266
Hough 28
STF 962
Barton 13
+26°00'
STF 1008
h391
OS 153 rej
h392
STF 1000
STF 991
07h 00m
06h 55m
Epsilon Gemε
Mebsuta
A 513
06h 50m
OS 155
06h 45m
Pourteau 1912
06h 40m
06h 35m
06h 30m
Zone 112, Map 4
Mirror Image
+30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 981
h730
+29°00'
Hipparcos 949
Milburn 688
h742
Auriga
54 Aur
+28°00'
h739
25 Gem
OS 151 rej
h406
Barton 145
Barton 144
NGC 2266
Hough 28
+27°00'
h404
OS 149
h395
STF 962
+26°00'
Barton 13
h391
OS 153 rej
h392
ε
STF 1000
Mebsuta
Epsilon Gem
A 513
STF 991
Pourteau 1912
06h 30m
06h 35m
06h 40m
OS 155
06h 45m
06h 50m
06h 55m
07h 00m
Zone 112
Index
57 Double Stars, 1 Open Cluster, 1 Galaxy
Flamsteed
h404........................................................... 30
h5468........................................................... 7
h730........................................................... 24
h739........................................................... 28
h742........................................................... 28
Hipparcos 949 ........................................... 27
Hough 28................................................... 31
25 Gem...................................................... 29
54 Aur ....................................................... 32
A
A. G. 106..................................................... 8
A. G. 111..................................................... 6
A. G. 113..................................................... 5
A. G. 115................................................... 19
A. G. 322................................................... 11
L
LDS 6201 .................................................. 18
B
M
Barton 13................................................... 31
Barton 142................................................. 14
Barton 144................................................. 30
Barton 145................................................. 27
Bur 1020.................................................... 13
Milburn 688 .............................................. 31
E
O
Epsilon Gem.............................................. 26
Espin 417 .................................................... 6
Goyal 80.................................................... 17
OS 129 ...................................................... 13
OS 149 ...................................................... 32
OS 151 rej ................................................. 25
OS 153 rej ................................................. 25
OSS 74 ...................................................... 11
H
S
h378........................................................... 10
h379............................................................. 4
h380............................................................. 3
h386........................................................... 12
h391........................................................... 29
h392........................................................... 23
h395........................................................... 24
Scheiner 453................................................ 4
Scheiner 466.............................................. 18
South 528 .................................................. 17
STF 1000................................................... 24
STF 830..................................................... 12
STF 834....................................................... 3
STF 861....................................................... 9
N
NGC 2266 ................................................. 33
NGC 2274 ................................................. 22
G
-1-
Zone 112
STF 981..................................................... 21
STF 983..................................................... 21
STF 984..................................................... 16
STF 862..................................................... 14
STF 879....................................................... 8
STF 888..................................................... 15
STF 889..................................................... 11
STF 897..................................................... 10
STF 902....................................................... 5
STF 907....................................................... 7
STF 957..................................................... 19
STF 962..................................................... 23
T
Theta Gem................................................. 20
V
Vilkki 13 ................................................... 16
-2-
Zone 112
Zone 112, Map 1
Double Stars
Easy
STF 834
Rating: 3 E
ADS 4646; HD 41163; SAO 58711
Position: 0605+3014
A
B
Magnitude
8.64
9.58
Separation PA
—
—
22.8 309 +
Year
—
1991
Spectra
A
A0
Colors
W
L
Notes:
1831: 22.9 @ 308. 12 measurements.
Observations:
C8 at 104x. The colors are elusive in this pair.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.86 inches; B = 6.70 inches.
Separation: AB = 9.07 miles.
Distance (LY): 255
Total luminosity (Suns): 2.5
h380
Rating: 3 E
SAO 58800
Position: 0609+3428
A
B
Magnitude
9.69
9.82
Separation PA
—
—
20.7 +
22 =
Year
—
1991
Spectra
K0
Colors
Y
Y
Notes:
1900: 19.3 @ 22. 11 measurements.
Hipparcos gives discordant distances: 245 light years to A, 1,300 to B. The stars also
have different proper motions.
-3-
Zone 112
Observations:
C11 at 115x.
Scheiner 453
Rating: 4 E
HD 40587; SAO 58659
Position: 0601+3132
A
B
Magnitude
8.08
11.91
Separation PA
—
—
19.6 +
212 =
Year
—
1989
Spectra
G5
Colors
yW
?
Notes:
1899: 18.8 @ 212. 2 measurements.
Observations:
C8 at 83x. Star B is very difficult.
h379
Rating: 4 E
ADS 4734; HD 41889; SAO 58791
Position: 0609+3116
A
B
Magnitude
7.62
10.73
Separation PA
—
—
9.1 =
112 -
Year
—
1926
Notes:
1877: 9.1 @ 120. 8 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches.
Separation: AB = 18.5 miles.
Distance (LY): 1,300
Total luminosity (Suns): 107
-4-
Spectra
A2 V
Colors
W
L
Zone 112
A. G. 113
Rating: 4 E
HD 257514
Position: 0628+3116
A
B
Magnitude
10.16
10.26
Separation PA
—
—
11.2 +
316 +
Year
—
1991
Spectra
G5
Colors
yW
W
Notes:
1894: 10.8 @ 315. 6 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.8 inches.
Separation: AB = 3.72 miles.
Distance (LY): 213
Total luminosity (Suns): 0.59
STF 902
Rating: 4 E
ADS 5066; SAO 59092
Position: 0628+3457
A
B
Magnitude
9.40
10.40
Separation PA
—
—
11.3 151 +
Year
—
1960
Spectra
Colors
yW
B?
Notes:
1831: 11.9 @ 149. 13 measurements. The stars have different proper motions.
Observations:
C8 at 104x. Moderately rich field.
Distance (LY): 103
Total luminosity (Suns): 0.2
-5-
Zone 112
Espin 417
Rating: 5 E
ADS 4766; HD 42175; SAO 58832
Position: 0611+3300
A
B
Magnitude
8.56
11.87
Separation PA
—
—
38.2 +
278 +
Year
—
1991
Spectra
F0
Colors
W
W
Notes:
1902: 14.1 @ 332. 3 measurements.
Observations:
C8 at 104x. Note the shallow triangle of 8.6m stars about 12 min W.
Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches.
Separation: AB = 38.2 miles.
Distance (LY): 640
Total luminosity (Suns): 11
A. G. 111
Rating: 5 E
ADS 5020; HD 256465; SAO 59058
Position: 0625+3150
A
B
Magnitude
10.10
10.40
Separation PA
—
—
7.0 165 +
Year
—
1926
Notes:
1894: 7.2 @ 164. 9 measurements.
Observations:
C11 at 115x. It is at the center of a lopsided "X".
-6-
Spectra
A0
Colors
W
W
Zone 112
STF 907
RT Aur; ADS 5085; HD 257491; SAO 59113
Position: 0628+3025
A
B
Magnitude
9.30
10.38
Separation PA
—
—
12.0 +
303 +
Rating: 5 E
Year
—
1991
Spectra
A7 V
Colors
yW
W
Notes:
1830: 11.7 @ 302. 12 measurements.
Observations:
C8 at 104x. 48 Aur (5.6m F8, 200 times brighter than the Sun and 650 light years
away) is 6’ NE and overpowers it.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.75 inches.
Separation: AB = 3.98 miles.
Distance (LY): 213
Total luminosity (Suns): 0.9
Moderate
h5468
Rating: 4 M
HD 41750; SAO 58783
Position: 0608+3112
A
B
Magnitude
8.27
9.40
Separation PA
—
—
16.3 74 =
Year
—
1991
Notes:
1827: 17.0 @ 74. 2 measurements.
The Tycho-2 Catalog indicates a single star entry.
Observations:
C8 at 83x.
-7-
Spectra
F8
Colors
bW
?
Zone 112
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.2 inches.
Separation: AB = 5.11 miles.
Distance (LY): 201
Total luminosity (Suns): 2
A. G. 106
Fox 144 (B
Position: 0611+3302
A
B
C
Magnitude
10.13
13.30
10.16
Rating: 5 M
Separation
—
17.9 27.7 +
PA
—
286 218 +
Year
—
1926
1991
Spectra
G0
Colors
yW
?
W
Notes:
AB 1911: 18.1 @ 288. 2 measurements.
AC 1902: 27.2 @ 216. 6 measurements.
Observations:
C11 at 115x.
STF 879
Rating: 5 M
ADS 4867
Position: 0616+3005
A
B
Magnitude
10.20
11.70
Separation PA
—
—
7.7 69 =
Year
—
1930
Spectra
Notes:
1828: 8.3 @ 69. 9 measurements.
Observations:
C8 at 104x. The 6.9m star to the N (SAO 58927) is overpowering.
-8-
Colors
B?
R
Zone 112
Difficult
STF 861
Rating: 3 D
ADS 4779; HD 42313; SAO 58838
Position: 0611+3040
A
B
C
BC
Magnitude
8.20
9.06
9.25
Separation PA
—
—
62.9 19 +
1.7 +
315 -
Year
—
1979
1999
Spectra
A
Colors
W
W
W
Notes:
AB 1831: 67.1 @ 15. 28 measurements. The stars have different proper motions
BC 1830: 1.6 @ 318. 36 measurements.
.
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.66 inches.
Separation: AB = 108 miles; BC = 2.92 miles.
Distance (LY): 1,100
Total luminosity (Suns): 150
-9-
Zone 112
Zone 112, Map 2
Double Stars
Easy
STF 897
Rating: 2 E
ADS 4983; HD 44328; SAO 78284
Position: 0623+2640
A
B
Magnitude
8.85
8.99
Separation PA
—
—
18.1 =
348 -
Year
—
1997
Spectra
A0
A0
Colors
W
B?
Notes:
1830: 18.1 @ 349. 21 measurements. The stars have a small difference in proper
motion.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.44 inches; B = 6.49 inches.
Separation: AB = 11.2 miles.
Distance (LY): 398
Total luminosity (Suns): 6
h378
Rating: 3 E
HD 251914; SAO 77993
Position: 0608+2858
A
B
Magnitude
9.77
9.86
Separation PA
—
—
12.6 78 -?
Year
—
1991
Notes:
1896: 12.4 @ 259. 13 measurements. Quadrant reversal?
- 10 -
Spectra
A2
Colors
W
W
Zone 112
Observations:
C11 at 115x. A small 10m 30-60-90 right triangle lies 5 min N.
A. G. 322
Rating: 3 E
HD 254518; SAO 78188
Position: 0618+2612
A
B
Magnitude
9.97
10.56
Separation PA
—
—
22.8 +
75 +
Year
—
1991
Spectra
G5
Colors
Y
B
Notes:
1904: 21.7 @ 73. 2 measurements.
The stars have different proper motions.
Observations:
C11 at 115x.
STF 889
Rating: 3 E
ADS 4930; HD 43906; SAO 78231
Position: 0620+2501
A
B
Magnitude
7.50
9.80
Separation PA
—
—
21.3 242 +
Year
—
2000
Spectra
K2
Colors
O!
B!
Notes:
1830: 22.1 @ 222. 17 measurements.
Observations:
C8 at 83x.
OSS 74
Rating: 3 E
HD 44050; SAO 78251
Position: 0621+2511
A
B
a.
Magnitude
7.08
8.94
12.40
Separation
—
56.7 42.2+
PA
—
265 +
292+
- 11 -
Year
—
1996
1990
Spectra
B9
A0
Colors
bW
W
No
Zone 112
Notes:
AB 1874: 58 @ 264. 17 measurements.
Aa 1911: 41 @ 290. 3 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.73 inches; B = 6.47 inches.
Separation: AB = 221 miles; Aa = 165 miles.
Distance (LY): 2,500
Total luminosity (Suns): 840
h386
Rating: 3 E
HD 255627; SAO 78271
Position: 0622+2731
A
B
C
Magnitude
9.66
9.60
9.51
Separation
—
21.4 +
57.3 -
PA
—
65 167 =
Year
—
1987
1981
Spectra
G0 V
Colors
Y
W
W
Notes:
AB 1895: 20.3 @ 66. 6 measurements.
AC 1894: 57.5 @ 167. 9 measurements.
Hipparcos gives discordant distances for A, C: 32 light years and 78. The stars also
have different proper motions.
There are three more very faint comes.
Observations:
C11 at 115x. It makes a nice, narrow triangle.
STF 830
Rating: 4 E
ADS 4629; HD 40959; SAO 77894
Position: 0603+2738
A
B
C
Magnitude
8.80
9.55
11.08
Separation
—
11.6 25.2 =
PA
—
261 +
189 +
- 12 -
Year
—
1991
1961
Spectra
F2
Colors
W
B
?
Zone 112
Notes:
AB 1830: 12.8 @ 250 33 measurements. The stars have different proper motions.
AC 1831: 25.2 @ 188. 9 measurements.
Observations:
C8 at 83x. Some observers see colors of Y, O, and O. Webb thought they were Y, ?,
and ?.
OS 129
Rating: 4 E
ADS 4673; HD 41429; SAO 77958
Position: 0606+2931
A
B
Magnitude
6.08
11.72
Separation PA
—
—
9.5 211 +
Year
—
1998
Spectra
M3 III
Colors
O!!
W?
Notes:
1848: 9.6 @ 208. 8 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 1.05 inches.
Separation: AB = 13.2 miles.
Distance (LY): 890
Total luminosity (Suns): 230
Bur 1020
Rating: 4 E
ADS 4994; HD 44512
Position: 0623+2845
A
B
C
Magnitude
8.34
10.98
9.58
Separation
—
1.3 =
84.8 -
PA
—
158 63 -
Notes:
AB 1891: 1.3 @ 159. 17 measurements.
AC 1900: 87 @ 65. 5 measurements.
- 13 -
Year
—
1991
1991
Spectra
B8
Colors
W
No
O
Zone 112
Observations:
C8 at 104x. It forms the N vertex of a very acute 8m triangle.
Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.36 inches.
Separation: AB = 24.3 miles; AC = 1,588 miles.
Distance (LY): 12,000
Total luminosity (Suns): 5,300
Barton 142
Rating: 5 E
HD 254119; SAO 78166
Position: 0616+2643
A
B
Magnitude
9.24
11.20
Separation PA
—
—
4.8
86
Year
—
1895
Spectra
Colors
W
bW
Notes:
1 measurement.
Observations:
C11 at 115x.
Moderate
STF 862
Rating: 4 M
ADS 4790; HD 42454; SAO 78095
Position: 0612+2929
A
B
Magnitude
7.38
10.66
Separation PA
—
—
6.7 +
337 =
Notes:
1831: 6.6 @ 337. 11 measurements.
Observations:
C8 at 104x.
- 14 -
Year
—
1991
Spectra
G2 Ib
Colors
pO
?
Zone 112
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 27 feet.
Separation: AB = 10.7 miles.
Distance (LY): 1,020
Total luminosity (Suns): 103
STF 888
Bur 895 (B); ADS 4929; HD 43885; SAO 78233
Position: 0620+2826
A
B
C
Magnitude
7.30
8.10
9.20
Separation
—
0.3 =
3.1 +
PA
—
143 +
265 +
Rating: 4 M
Year
—
1997
1999
Spectra
A3 V
Colors
yW
No
W
Notes:
AB 1879: 0.3 @ 133. 96 measurements. The AB orbital period is 54 years (or 108
years, ambiguous case), with semi-major axis of 0.18" or 0.28", direct motion..
AC 1831: 2.7 @ 246. 57 measurements.
Observations:
C8 at 280x. Webb: W, W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.10 inches.
Separation: AB = 686 feet; AC = 1.36 miles.
Distance (LY): 282
Total luminosity (Suns): 8.6
- 15 -
Zone 112
Zone 112, Map 3
Double Stars
Easy
STF 984
Rating: 3 E
ADS 5588;
Position: 0656+3227
A
B
Magnitude
9.73
10.80
Separation PA
—
—
4.2 158 -
Year
—
1977
Spectra
G5
Colors
Y
O
Notes:
1831: 6.0 @ 167. 14 measurements.
Observations:
C11 at 115x!
Vilkki 13
Position: 0638+3447
A
B
Magnitude
9.19
9.44
Rating: 4 E
Separation PA
—
—
12.0 351 +
Notes:
1900: 12.1 @ 349. 5 measurements.
Observations:
C11 at 115x.
- 16 -
Year
—
1984
Spectra
Colors
W
W
Zone 112
Goyal 80
Rating: 4 E
HD 261309
Position: 0640+3342
A
B
Magnitude
10.28
10.23
Separation PA
—
—
28.3 -! 118 -!!
Year
—
1991
Spectra
G5
G5
Colors
W
W
Notes:
AB 1940: 39.0 @ 290. 5 measurements.
The stars show similar proper motions, although Hipparcos gives different distances
(480 and 508 light years).
There are six more very faint comes.
Observations:
C8 at 104x.
South 528
AK Aur; Sinachopoulos 21 (C, D, E); HD 261026; SAO 59333
Position: 0639+3135
A
B
C
D
E
Magnitude
8.69
10.50
14.40
14.90
14.70
Separation
—
83.1 +
104.6
106.1
157.9
PA
—
27 =
39
32
76
Year
—
1989
1989
1989
1989
Rating: 5 E
Spectra
A0
Colors
yW
bW
No
No
No
Notes:
AB 1825: 81.7 @ 27. 7 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. A is an Algol-type system.
AC, AD and AE, all 1 measurement.
Observations:
C8 at 104x. Rich field.
- 17 -
Zone 112
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.38 inches.
Separation: AB = 52.3 miles; AC = 65.8 miles; AD = 66.7 miles; AE = 99.3
miles.
Distance (LY): 403
Total luminosity (Suns): 5
LDS 6201
Rating: 5 E
HD 263175; SAO 59465
Position: 0646+3233
A
B
Magnitude
8.81
12.15
Separation PA
—
—
31.0
101
Year
—
1960
Spectra
K3 V
Colors
Y!
W
Notes:
1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.6 inches.
Separation: AB = 3.96 miles.
Distance (LY): 82
Total luminosity (Suns): 0.165
Scheiner 466
Rating: 5 E
HD 265345; SAO 59578
Position: 0653+3128
A
B
Magnitude
9.40
11.33
Separation PA
—
—
29.4 +
154 -
Year
—
1991
Spectra
G0
Colors
Y
W
Notes:
1899: 28.8 @ 156. 9 measurements.
Hipparcos gives discordant distances: 388 light years to A, 219 to B. The stars have
similar proper motions, though.
- 18 -
Zone 112
Observations:
C11 at 115x. D, E, F and G were not noted.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.3 inches.
Separation: AB = 17.8 miles.
Distance (LY): 387
Total luminosity (Suns): 2.60
Moderate
A. G. 115
Rating: 3 M
ADS 5120
Position: 0631+3027
A
B
Magnitude
8.77
9.95
Separation PA
—
—
4.0 354 =
Year
—
1998
Spectra
K2 III
Colors
Y
O
Notes:
1091: 4.3 @ 354. 16 measurements.
Observations:
C8 at 104x. It rules a moderately bright but sparse field. Nice view.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 49.5 inches.
Separation: AB = 1,214 feet.
Distance (LY): 38
Total luminosity (Suns): 0.054
STF 957
Rating: 4 M
ADS 5403; HD 48510; SAO 59444
Position: 0645+3050
A
B
C
Magnitude
7.27
9.43
13.10
Separation
—
3.7 +
18.9
PA
—
90 101
- 19 -
Year
—
1991
1907
Spectra
A0
Colors
W
O
?
Zone 112
Notes:
AB 1831: 3.4 @ 96. 20 measurements.
AC 1 measurement.
Observations:
C8 at 280x. Webb saw them as W and W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.84 inches.
Separation: AB = 1.30 miles; AC = 6.66 miles.
Distance (LY): 226
Total luminosity (Suns): 6.02
Theta Gem
34 Gem; Fox 150; ADS 5532; HD 50019; SAO 59570
Position: 0653+3358
A
B
C
Magnitude
3.60
12.60
12.70
Separation
—
78.2 =
102.4 +
PA
—
322 =
185 =
Year
—
1922
1922
Rating: 5 M
Spectra
A3 III
Colors
W
?
?
Notes:
AB 1913: 78.2 @ 322. 2 measurements. Star A is a spectroscopic binary. It also
rotates at 128 kps.
AC 1913: 102.1 @ 185. 2 measurements.
Observations:
C8 at 104x. A 12m star lies 130" away @ pa200.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches.
Separation: AB = 24.0 miles; AC = 31.5 miles.
Distance (LY): 197
Total luminosity (Suns): 112.052
- 20 -
Zone 112
STF 983
Rating: 5 M
ADS 5583; HD 266241; SAO 59624
Position: 0656+3428
A
B
C
Magnitude
8.51
12.20
12.24
Separation
—
11.0 23.1
PA
—
31 193
Year
—
1963
1913
Spectra
B9
Colors
W
W?
?
Notes:
AB 1830: 11.9 @ 37. 7 measurements.
AC 1 measurement.
Observations:
C11 at 115x. C was very difficult.
Difficult
STF 981
Rating: 3 D
ADS 5570; HD 50662; SAO 59611
Position: 0656+3010
A
B
Magnitude
8.76
9.07
Separation PA
—
—
1.4 131 -
Year
—
1997
Spectra
G0
Colors
dB
dB
Notes:
1831: 3.7 @ 149. 97 measurements. The orbital period may be 5,343 years,
implying a separation several hundred times that of the Sun and Pluto.
Observations:
C8 at 280x. The colors make it difficult to see.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.7 inches.
Separation: AB = 1,426 feet.
Distance (LY): 128
Total luminosity (Suns): 1.1
- 21 -
Zone 112
Deep Sky Objects
Difficult
NGC 2274
Rating: 5 D
Other Names: H II 615; UGC 3541
Astronomical League Program: Herschel II Club
Position: 0647+3334
Type: Gal
Surface brightness: 13.2
Class: E
Dimensions: 1.8' x 1.8'
Magnitude: 12.1
PA: 169
Observations:
C8 at 83x. It showed up as a very faint hazy patch barely noticed with slight tube
movement. It lies 10 min S of a 7.9m star. Moderate field.
Radial velocity (km/sec): +5,072
- 22 -
Zone 112
Zone 112, Map 4
Double Stars
Easy
h392
Rating: 3 E
HD 46220; SAO 78484
Position: 0633+2517
A
B
Magnitude
9.18
9.31
Separation PA
—
—
24.1 36 =
Year
—
1991
Spectra
A0
A0
Colors
W
W
Notes:
1899: 24.4 @ 36. 11 measurements.
The stars show similar proper motions.
Observations:
C8 at 83x.
STF 962
Rating: 3 E
HD 49141; SAO 78756
Position: 0648+2642
A
B
Magnitude
9.31
9.47
Separation PA
—
—
26.0 +
242 +
Notes:
1830: 25.7 @ 241. 15 measurements.
Observations:
C11 at 115x.
- 23 -
Year
—
1991
Spectra
A0
Colors
W
yW
Zone 112
STF 1000
A 1061 (B); HD 266717; SAO 78901
Position: 0657+2508
A
B
C
Magnitude
9.80
9.10
9.03
Separation
—
0.1 22.2 -
Rating: 3 E
PA
—
84 +!
68 +
Year
—
1990
1991
Spectra
F8 V
Colors
W
No
B
Notes:
AB 1904: 0.3 @ 314. 24 measurements.
AC 1829: 22.4 @ 67. 18 measurements. Similar proper motion.
Observations:
C8 at 104x. Moderate field.
h730
Position: 0633+2945
A
B
Magnitude
9.80
11.00
Rating: 4 E
Separation PA
—
—
11.6 +
9=
Year
—
1923
Spectra
Colors
O
W
Notes:
1908: 11.1 @ 9. 2 measurements.
Observations:
C11 at 115x.
Distance (LY): 164
Total luminosity (Suns): 0.337
h395
Rating: 4 E
HD 260491; SAO 78552
Position: 0637+2716
A
B
Magnitude
9.09
11.02
Separation PA
—
—
16.8 +
139 +
- 24 -
Year
—
1987
Spectra
G5
Colors
Y
W
Zone 112
Notes:
1923: 16.2 @ 138. 2 measurements.
Observations:
C8 at 104x. A 7m star is about 12 min W.
OS 151 rej
Rating: 4 E
HD 47256; SAO 78580
Position: 0639+2748
A
B
C
Magnitude
7.32
10.41
13.40
Separation
—
28.7 29.9
PA
—
132 235
Year
—
1981
1898
Spectra
A2
Colors
W
B
No
Notes:
AB 1843: 29.8 @ 140. 11 measurements.
AC 1 measurement.
Hipparcos/Tycho data show different distances for these stars (500 and 224 light
years); they may be optical.
Observations:
C8 at 104x. A moderate field lies to the S.
OS 153 rej
Rating: 4 E
HD 47960; SAO 78653
Position: 0642+2528
A
B
Magnitude
7.35
11.18
Separation PA
—
—
19.0 92 +
Notes:
1843: 20.0 @ 71. 8 measurements.
Observations:
C8 at 83x. A nice pair lies 5 min S.
- 25 -
Year
—
1998
Spectra
M0 III
Colors
yO
?
Zone 112
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 63.0 inches.
Separation: AB = 35.9 miles.
Distance (LY): 1,210
Total luminosity (Suns): 104
Epsilon Gem
Rating: 4 E
27 Gem; Mebsuta, "the outstretched" paw of a lion; H 246; South 533; ADS 5381;
HD 48329; SAO 78682
Position: 0644+2508
A
B
Magnitude
3.10
9.60
Separation PA
—
—
111.2 +
94 =
Year
—
1982
Spectra
A3m
K2
Colors
W
B
Notes:
1825: 110.3 @ 94. 13 measurements. This is probably an optical pair. However, the
stars exhibit common proper motion. The primary is a spectroscopic binary and is a red
star member of the Pleiades Group. It is also an infra-red source.
The system was occulted by Mars on April 7, 1976. Its diameter (as determined by
occulation) is 0.0018" to 0.0056".
From James Kaler's Star Notes:
Mebsuta is one of the sky's rarer stars, a cool class G supergiant. In the early days of
stellar studies, astronomers thought that stars were born hot and then cooled and dimmed
as they died. In fact (at least for a time), they do just the opposite, brightening and
swelling (though indeed cooling at their surfaces) when internal hydrogen fusion, which
powers ordinary stars, ceases. Hot stars were therefore erroneously called "early," cool
stars "late." Mebsuta is a prime example of a "late G" supergiant.
And it lives up to its class. It has a surface temperature of 4,360 Kelvin, notably
cooler than solar. These numbers give a diameter 150 times that of the Sun, or about the
size of the orbit of Venus. Mebsuta is one of the few supergiants that lie along the path of
the Moon. By timing how long it takes the moving Moon to cover, or occult, a star, we
can measure the star's angular diameter. Such measurement, combined with another
method that involves interference of light waves from the star, gives exactly the same
diameter, showing the star's various parameters are correct. Mebsuta's luminosity and
temperature suggest that its mass lies between 7 and 9 times that of the Sun and that it is
now in a rather advanced state of aging, most likely fusing helium into carbon in its deep
core. Stars like the Sun will become white dwarfs (like Sirius B) of about 6/10 of a solar
mass. Mebsuta will push the envelope, and when it dies will weigh in just short of the
limit at white dwarfs cannot exist, more massive stars exploding as supernovae. Mebsuta
has a ninth magnitude but distant "companion" about 2 minutes of arc away, long thought
- 26 -
Zone 112
to be just a line-of- sight coincidence. Its nature (an evolved class K star) suggests a
distance exactly equal to that of Mebsuta. However, given Mebsuta's age of at most 50
million years, no true lower mass companion, one born at the same time, could possibly
have evolved. The "companion" is probably just passing through Mebsuta's neighborhood, enjoying the show put on by its brilliant, but temporary, acquaintance.
Observations:
C8 at 83x. Webb saw them as yW and pB.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.0 inches; B = 29.4 inches.
Separation: AB = 156 miles.
Distance (LY): 900
Total luminosity (Suns): 7,600
Barton 145
Position: 0646+2741
A
B
Magnitude
10.08
10.40
Rating: 4 E
Separation PA
—
—
4.3 106 -
Year
—
1947
Spectra
Colors
W
W
Notes:
1894: 4.5 @ 107. 2 measurements.
Observations:
C11 at 115x. A beautiful deep gold star (SAO 78710) lies 5 min W. This wonderful
6.7m gem is a K3 giant some 910 light years away, making it as luminous as 135 Suns.
Hipparcos 949
Rating: 4 E
HD 264672;
Position: 0651+2927
A
B
Magnitude
10.28
11.44
Separation PA
—
—
6.4
26
Notes:
1 measurement.
- 27 -
Year
—
1991
Spectra
G0
Colors
yW
W
Zone 112
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.2 inches.
Separation: AB = 8.00 miles.
Distance (LY): 800
Total luminosity (Suns): 5.20
h739
Rating: 4 E
HD 265379; SAO 78826
Position: 0653+2843
A
B
Magnitude
8.83
12.34
Separation PA
—
—
15.6
297
Year
—
1910
Spectra
F5
Colors
W
W
Notes:
1 measurement.
Observations:
C11 at 193x. It lies 2 min S of an 8.5m star.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.7 inches.
Separation: AB = 13.4 miles.
Distance (LY): 550
Total luminosity (Suns): 7.22
h742
Sinachopoulos 25 (C, D, E, F, G); HD 266479
Position: 0657+2858
A
B
Magnitude
9.61
10.62
Separation PA
—
—
10.0 =
5+
- 28 -
Rating: 4 E
Year
—
1991
Spectra
F5
Colors
W
W
Zone 112
Notes:
AB 1900: 10.0 @ 4. 10 measurements.
Hipparcos gives discordant distances: 139 light years to A, 55 to B. The stars also
have different proper motions.
There are five more very faint comes.
Observations:
C11 at 115x. C, D, E and F were not detected.
h391
Rating: 5 E
HD 45768; SAO 78447
Position: 0631+2541
A
B
Magnitude
9.32
11.21
Separation PA
—
—
18.0 +
231 -
Year
—
1926
Spectra
A2
Colors
W
?
Notes:
1906: 17.8 @ 233. 2 measurements.
The Tycho-2 Catalogue indicates a single star entry.
Observations:
C8 at 104x. A very, very nice field lies just to the N.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.62 inches.
Separation: AB = 13.5 miles.
Distance (LY): 480
Total luminosity (Suns): 4
25 Gem
h397; HD 47731; SAO 78636
Position: 0641+2812
A
B
C
Magnitude
6.45
13.26
10.30
Separation
—
31
56
Rating: 5 E
PA
—
46
57
- 29 -
Year
—
1904
Spectra
G5 II
K0
Colors
yW
O
?
Zone 112
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.5 feet; B = 31.3 inches.
Separation: AB = 68.2 miles; AC = 123 miles.
Distance (LY): 1,410
Total luminosity (Suns): 416
Barton 144
Position: 0644+2734
A
B
Magnitude
11.09
11.20
Rating: 5 E
Separation PA
—
—
5.3 +
272 -
Year
—
1947
Spectra
Colors
W
W
Notes:
1897: 4.8 @ 273. 2 measurements.
Observations:
C11 at 115x.
h404
Position: 0657+2719
A
B
Magnitude
11.27
11.30
Rating: 5 E
Separation PA
—
—
8.0
80
Year
—
1820
Notes:
1 measurement.
Observations:
C11 at 115x. It is very faint.
Distance (LY): 29
Total luminosity (Suns): 0.004
- 30 -
Spectra
Colors
W
W
Zone 112
Moderate
Barton 13
Rating: 4 M
ADS 5229
Position: 0636+2641
A
B
Magnitude
10.38
10.80
Separation PA
—
—
5.1 =
37 +
Year
—
1988
Spectra
Colors
W
O?
Notes:
1895: 5.1 @ 28. 4 measurements.
Observations:
C11 at 115x. It is at the center of a "Y" asterism of 10m stars.
Milburn 688
Position: 0635+2912
A
B
C
Magnitude
10.68
12.21
13.60
Rating: 5 M
Separation
—
21.6
6.9
PA
—
241
196
Year
—
1931
1931
Spectra
Colors
W
B
W
Notes:
AB and AC, 1 measurement.
Observations:
C11 at 115x. C was very difficult.
Distance (LY): 32
Total luminosity (Suns): 0.006
Hough 28
Rating: 5 M
ADS 5613;
Position: 0657+2650
A
B
Magnitude
9.50
12.44
Separation PA
—
—
6.3 +
256 -
- 31 -
Year
—
1907
Spectra
Colors
W
W?
Zone 112
Notes:
1886: 5.4 @ 257. 7 measurements.
Observations:
C11 at 115x. B was very faint.
Difficult
OS 149
Rating: 3 D
ADS 5234; HD 46780; SAO 78540
Position: 0636+2717
A
B
Magnitude
6.89
8.62
Separation PA
—
—
0.7 +
301 -
Year
—
1998
Spectra
dG2
Colors
Y
W
Notes:
AB 1843: 0.6 @ 24. Over 100 measurements.
Orbital period of 121 years, with semi-major axis of 0.89", motion retrograde.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.6 inches.
Separation: AB = 634 feet.
Distance (LY): 118
Total luminosity (Suns): 2.30
54 Aur
OS 152; ADS 5289; HD 47395; SAO 78593
Position: 0640+2816
A
B
Magnitude
6.02
7.62
Rating: 3 D
Separation PA
—
—
0.9 +
35 +
Year
—
1995
Spectra
B7 III
Notes:
1843: 0.7 @ 29. 68 measurements. A is a spectroscopic binary.
- 32 -
Colors
W
W
Zone 112
Observations:
C11 at 634x. I got a figure "8" on a windy night.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches.
Separation: AB = 1.00 mile.
Distance (LY): 710
Total luminosity (Suns): 189
Deep Sky Objects
Easy
NGC 2266
Rating: 2 E
Other Names: Melotte 50; Collinder 113; Raab 38; H VI 21
Astronomical League Program: Herschel 400 Club
Position: 0643+2658
Type: Oc
Dimensions: 6'
Class: II 2m
Cluster population: 50
Magnitude: 9.5
Notes:
This cluster lies 38,500 light years from the galactic center and 2,000 light years
above the galactic plane.
The brightest star is 11m (380 times brighter than the Sun).
It is 631 million years old.
Observations:
C8 at 83x. Small and rich, use high powers to get the most out of this triangular
group. Note the 8m chain on the SE edge. At low powers it appears nebulous but begins
to resolve around 100 power.
Model (where the Sun is a baseball):
Its diameter would be 6,180 miles, with its stars 840 miles apart.
Distance (LY): 11,000
Luminosity (suns): 1,500
See sketch on the next page.
- 33 -
Zone 112
NGC 2266
Open cluster (II 2 m; 50 stars)
Observed with C8 on 3/26/92
Magnification: 80x
- 34 -
Zone 112
Zone 112 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
STF 897
0623+2640
2E
2
STF 834
0605+3014
3E
1
h378
0608+2858
3E
2
h380
0609+3428
3E
1
A. G. 322
0618+2612
3E
2
STF 889
0620+2501
3E
2
OSS 74
0621+2511
3E
2
h386
0622+2731
3E
2
h392
0633+2517
3E
4
STF 962
0648+2642
3E
4
STF 984
0656+3227
3E
3
STF 1000
0657+2508
3E
4
Scheiner 453
0601+3132
4E
1
STF 830
0603+2738
4E
2
OS 129
0606+2931
4E
2
h379
0609+3116
4E
1
Bur 1020
0623+2845
4E
2
STF 902
0628+3457
4E
1
A. G. 113
0628+3116
4E
1
h730
0633+2945
4E
4
h395
0637+2716
4E
4
Component
A
B
A
B
A
B
A
B
A
B
A
B
A
B
a
A
B
C
A
B
A
B
A
B
A
B
C
A
B
A
B
C
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
- 35 -
Mag
8.85
8.99
8.64
9.58
9.77
9.86
9.69
9.82
9.97
10.56
7.50
9.80
7.08
8.94
12.40
9.66
9.60
9.51
9.18
9.31
9.31
9.47
9.73
10.80
9.80
9.10
9.03
8.08
11.91
8.80
9.55
11.08
6.08
11.72
7.62
10.73
8.34
10.98
9.58
9.40
10.40
10.16
10.26
9.80
11.00
9.09
11.02
Separation
—
18.1 =
—
22.8 —
12.6 —
20.7 +
—
22.8 +
—
21.3 —
56.7 42.2+
—
21.4 +
57.3 —
24.1 —
26.0 +
—
4.2 —
0.1 22.2 —
19.6 +
—
11.6 25.2 =
—
9.5 —
9.1 =
—
1.3 =
84.8 —
11.3 —
11.2 +
—
11.6 +
—
16.8 +
PA
—
348 —
309 +
—
78 -?
—
22 =
—
75 +
—
242 +
—
265 +
292+
—
65 57.3 —
36 =
—
242 +
—
158 —
84 +!
22.2 —
212 =
—
261 +
25.2 =
—
211 +
—
112 —
158 84.8 —
151 +
—
316 +
—
9=
—
139 +
Zone 112
Designation
Position
Rating
Map
Vilkki 13
0638+3447
4E
3
OS 151 rej
0639+2748
4E
4
Goyal 80
0640+3342
4E
3
OS 153 rej
0642+2528
4E
4
Epsilon Gem
0644+2508
4E
4
Barton 145
0646+2741
4E
4
Hipparcos 949
0651+2927
4E
4
h739
0653+2843
4E
4
h742
0657+2858
4E
4
Espin 417
0611+3300
5E
1
Barton 142
0616+2643
5E
2
A. G. 111
0625+3150
5E
1
STF 907
0628+3025
5E
1
h391
0631+2541
5E
4
South 528
0639+3135
5E
3
25 Gem
0641+2812
5E
4
Barton 144
0644+2734
5E
4
LDS 6201
0646+3233
5E
3
Scheiner 466
0653+3128
5E
3
h404
0657+2719
5E
4
A. G. 115
0631+3027
3M
3
h5468
0608+3112
4M
1
STF 862
0612+2929
4M
2
STF 888
0620+2826
4M
2
Component
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
D
E
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
- 36 -
Mag
9.19
9.44
7.32
10.41
13.40
10.28
10.23
7.35
11.18
3.10
9.60
10.08
10.40
10.28
11.44
8.83
12.34
9.61
10.62
8.56
11.87
9.24
11.20
10.10
10.40
9.30
10.38
9.32
11.21
8.69
10.50
14.40
14.90
14.70
6.45
13.26
10.30
11.09
11.20
8.81
12.15
9.40
11.33
11.27
11.30
8.77
9.95
8.27
9.40
7.38
10.66
7.30
8.10
9.20
Separation
—
12.0 —
28.7 29.9
—
28.3 -!
—
19.0 —
111.2 +
—
4.3 —
6.4
—
15.6
—
10.0 =
—
38.2 +
—
4.8
—
7.0 —
12.0 +
—
18.0 +
—
83.1 +
104.6
106.1
157.9
—
31
56
—
5.3 +
—
31.0
—
29.4 +
—
8.0
—
4.0 —
16.3 —
6.7 +
—
0.3 =
3.1 +
PA
—
351 +
—
132 29.9
—
118 -!!
—
92 +
—
94 =
—
106 —
26
—
297
—
5+
—
278 +
—
86
—
165 +
—
303 +
—
231 —
27 =
104.6
106.1
76
—
46
56
—
272 —
101
—
154 —
80
—
354 =
—
74 =
—
337 =
—
143 +
3.1 +
Zone 112
Designation
Position
Rating
Map
Barton 13
0636+2641
4M
4
STF 957
0645+3050
4M
3
A. G. 106
0611+3302
5M
1
STF 879
0616+3005
5M
1
Milburn 688
0635+2912
5M
4
Theta Gem
0653+3358
5M
3
STF 983
0656+3428
5M
3
Hough 28
0657+2650
5M
4
STF 861
0611+3040
3D
1
OS 149
0636+2717
3D
4
54 Aur
0640+2816
3D
4
STF 981
0656+3010
3D
3
Component
A
B
A
B
C
A
B
C
A
B
A
B
C
A
B
C
A
B
C
A
B
A
B
C
A
B
A
B
A
B
Mag
10.38
10.80
7.27
9.43
13.10
10.13
13.30
10.16
10.20
11.70
10.68
12.21
13.60
3.60
12.60
12.70
8.51
12.20
12.24
9.50
12.44
8.20
9.06
9.25
6.89
8.62
6.02
7.62
8.76
9.07
Separation
—
5.1 =
—
3.7 +
18.9
—
17.9 27.7 +
—
7.7 —
21.6
6.9
—
78.2 =
102.4 +
—
11.0 23.1
—
6.3 +
—
62.9 BC 1.7 +
—
0.7 +
—
0.9 +
—
1.4 -
PA
—
37 +
—
90 18.9
—
286 27.7 +
—
69 =
—
241
6.9
—
322 =
102.4 +
—
31 23.1
—
256 —
19 +
BC 315 —
301 —
35 +
—
131 -
Deep Sky Objects
Specifications
Object
NGC 2266
NGC 2274
Position
0643+2658
0647+3334
Rating
2E
5D
Map
4
3
Type
Oc (II 2m)
Gal (E)
- 37 -
Mag
9.5
12.1
Surface
Br
13.2
Population
50