Zone 113, Master Map
Normal View
Lynx
Auriga
ο
θ
c
α
Castor
+32°00'
e
ρ
+30°00'
π
Gemini
+34°00'
Zone Master, Normal View, 10 deg FOV
τ
β
Pollux
φ
f
d
ι
υ
+26°00'
χ
+28°00'
σ
ω1
ω2
κ
08h 00m
07h 48m
ω
07h 36m
07h 24m
07h 12m
07h 00m
Zone 113, Map 1
Normal Image
+35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h411
STF 1054
+34°00'
OS 172 rej
STF 1070
NGC 2379
+33°00'
NGC 2389
Bur 22
A. G. 129
+32°00'
Espin 339
Espin 341
Rho Gemρ
Scheiner 472
+31°00'
South 546
Scheiner 479
A 673
Tau Gemτ
Hough 518
Hough 31
07h 30m
07h 25m
07h 20m
07h 15m
07h 10m
07h 05m
07h 00m
Zone 113, Map 1
Mirror Image
+35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h411
STF 1054
OS 172 rej
STF 1070
+34°00'
STF 983
+33°00'
NGC 2389
NGC 2379
Espin 339
+32°00'
Espin 341
A. G. 129
ρ
Scheiner 472
Rho Gem
+31°00'
South 546
Scheiner 479
A 673
Hough 518
τ Tau Gem
Hough 31
07h 00m
07h 05m
07h 10m
07h 15m
07h 20m
07h 25m
07h 30m
Zone 113, Map 2
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Tau Gem
+30°00'
τ
Hough 31
+28°00'
+29°00'
NGC 2371-2
NGC 2371
STF 1012
Hipparcos 1025
ι
h406
Fox 151
+27°00'
NGC 2331
STF 1037 rej
h421
+26°00'
STF 1008
STF 1014
A. G. 332
OSS 83
Hipparcos 1012
A. G. 335
Bpm 98
STF 1023
OS 164 rej
52 Gem
07h 30m
OSS 85
Engelmann 30
07h 25m
07h 20m
07h 15m
07h 10m
07h 05m
07h 00m
Zone 113, Map 2
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Tau Gem
+30°00'
τ
Hough 31
+29°00'
NGC 2371-2
NGC 2371
+28°00'
h742
STF 1012
Hipparcos 1025
ι
h406
Fox 151
+27°00'
NGC 2331
STF 1037 rej
h421
+26°00'
STF 1008
STF 1014
A. G. 332
OSS 83
Hipparcos 1012
STF 1023
OS 164 rej
Bpm 98
52 Gem
Engelmann 30
07h 00m
07h 05m
07h 10m
07h 15m
07h 20m
07h 25m
OSS 85
07h 30m
Zone 113, Map 3
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+35°00'
NGC 2415
70 Gem
Gemini
OS 172 rej
OS 181
Kustner 30
NGC 2389
STF 1119
+34°00'
ο
Espin 419
Lynx
+33°00'
STF 1123
Pi Gem
Ball 25
OS 173 rej
Bur 22
Ball 24
Alpha Gemα
Rho Gemρ
NGC 2435
OS 89
+31°00'
Scheiner 483
Castor
OS 175
A 673
Kustner 95
08h 00m
07h 55m
07h 50m
+32°00'
π
07h 45m
07h 40m
07h 35m
07h 30m
Zone 113, Map 3
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+35°00'
NGC 2415
70 Gem
Gemini
OS 172 rej
ο
OS 181
+34°00'
Kustner 30
NGC 2389
NGC 2379
STF 1119
Espin 419
Lynx
Pi Gem
+33°00'
π
STF 1123
Ball 25
OS 173 rej
Bur 22
ρ
Rho Gem
+32°00'
α
Ball 24
Castor
Alpha Gem
NGC 2435
Scheiner 483
+31°00'
OS 89
OS 175
Scheiner 479
A 673
Kustner 95
07h 30m
07h 35m
07h 40m
07h 45m
07h 50m
07h 55m
08h 00m
Zone 113, Map 4
Normal Image
+30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
σ
South 560
Sigma Gem
Espin 420
STF 1144
β
Olivier 170
+28°00'
H V 67
+29°00'
Kustner 95
Beta Gem
Pollux
+27°00'
Couteau 951
NGC 2492
NGC 2449
φ
υ
+26°00'
h765
STF 1155
ω1
A. G. 335
NGC 2498
Pourteau 2835
08h 00m
STF 1156
07h 55m
07h 50m
07h 45m
07h 40m
07h 35m
07h 30m
Zone 113, Map 4
Mirror Image
+30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Sigma Gem
Espin 420
South 560
Beta Gemβ
H V 67
STF 1144
+28°00'
σ
+29°00'
Kustner 95
Pollux
Couteau 951
Olivier 170
+27°00'
Cancer
NGC 2449
υ
+26°00'
φ
h765
STF 1155
ω1
A. G. 335
ω2
Pourteau 2835
OSS 85
07h 30m
07h 35m
07h 40m
07h 45m
07h 50m
07h 55m
STF 1156
08h 00m
Zone 113
Index
52 Double Stars, 1 Planetary Nebula,
1 Open Cluster, 4 Galaxies
A
Hough 31................................................... 12
Hough 518................................................... 7
A 673......................................................... 21
A. G. 129..................................................... 4
A. G. 332................................................... 11
A. G. 335................................................... 29
Alpha Gem ................................................ 24
K
Kustner 30................................................. 19
Kustner 95................................................. 20
B
N
Ball 24....................................................... 23
Ball 25....................................................... 23
Beta Gem .................................................. 33
Bpm 98...................................................... 15
Bur 22........................................................ 19
NGC 2331 ................................................. 17
NGC 2371 ................................................. 16
NGC 2379 ................................................... 9
NGC 2389 ................................................... 9
NGC 2435 ................................................. 28
NGC 2449 ................................................. 35
C
O
Couteau 951 .............................................. 33
F
Olivier 170 ................................................ 31
OS 172 rej ................................................. 27
OS 173 rej ................................................. 26
OS 175 ...................................................... 22
OS 181 ...................................................... 27
OS 89 ........................................................ 18
OSS 83 ...................................................... 10
Fox 151 ..................................................... 14
P
H
Pi Gem ...................................................... 20
H V 67....................................................... 30
h406........................................................... 12
h421........................................................... 11
h765........................................................... 32
Hipparcos 1012 ......................................... 12
Hipparcos 1025 ......................................... 13
R
E
Espin 339 .................................................... 7
Espin 341 .................................................... 3
Espin 419 .................................................. 22
Espin 420 .................................................. 34
Rho Gem ..................................................... 5
S
Scheiner 472................................................ 6
Scheiner 479................................................ 5
-1-
Zone 113
STF 1070..................................................... 6
STF 1119................................................... 18
STF 1123................................................... 26
STF 1144................................................... 30
STF 1155................................................... 31
Scheiner 483.............................................. 21
Sigma Gem................................................ 32
South 546 .................................................... 3
South 560 .................................................. 29
STF 1008................................................... 14
STF 1012................................................... 10
STF 1014................................................... 13
STF 1037 rej ............................................. 15
STF 1054..................................................... 4
T
Tau Gem...................................................... 8
-2-
Zone 113
Zone 113, Map 1
Double Stars
Easy
Espin 341
Rating: 3 E
ADS 5974
Position: 0720+3226
A
B
Magnitude
10.10
10.60
Separation PA
—
—
3.1 252 +
Year
—
1906
Spectra
Colors
W
W
Notes:
1899: 3.8 @ 250. 3 measurements.
Observations:
C11 at 115x. It is part of a small triangle.
Distance (LY): 154
Total luminosity (Suns): 0.28
South 546
Rating: 3 E
SAO 59990
Position: 0721+3128
A
B
C
Magnitude
8.64
9.41
9.81
Separation
—
86.8 +
143.6 +
PA
—
358 67 -
Year
—
1979
1979
Spectra
M2
Colors
Y
W
W
Notes:
AB 1825: 79.6 @ 359. 11 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. The stars have different proper motions.
AC 1825: 142.6 @ 69. 8 measurements.
Observations:
C8 at 104x. It makes a nice triangle!
-3-
Zone 113
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.3 inches.
Separation: AB = 176 miles; AC = 291 miles.
Distance (LY): 1,300
Total luminosity (Suns): 76
A. G. 129
Rating: 4 E
ADS 5670; HD 267598; SAO 59684
Position: 0701+3156
A
B
Magnitude
9.68
10.67
Separation PA
—
—
6.3 +
24 +
Year
—
1991
Spectra
F0
Colors
W
W
Notes:
1899: 6.2 @ 23. 5 measurements.
Hipparcos gives discordant distances: 106 light years and 459. The proper motions
are also different.
Observations:
C11 at 115x.
STF 1054
Rating: 4 E
ADS 5954; HD 56327; SAO 59962
Position: 0718+3457
A
B
C
Magnitude
8.10
9.65
9.93
Separation
—
18.7 +
96.9 +!
PA
—
292 =
274 +
Year
—
1991
1991
Spectra
F2
F0
Colors
W
R
B
Notes:
AB 1830: 18.5 @ 292. 19 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. The stars have different proper motions.
AC 1880: 79.4 @ 268. 7 measurements.
Observations:
C8 at 83x. Webb saw them as Y and B.
-4-
Zone 113
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.7 inches; B = 11.5 inches.
Separation: AB = 13.7 miles; AC = 71.1 miles.
Distance (LY): 470
Total luminosity (Suns): 14
Scheiner 479
Position: 0727+3054
A
B
Magnitude
10.61
10.76
Rating: 4 E
Separation PA
—
—
15.1 +
42 -?
Year
—
1991
Spectra
Colors
W
W
Notes:
1894: 13.7 @ 227. 5 measurements. Quadrant reversal?
Hipparcos gives discordant distances: 1,300 light years to A, 403 to B. Also different
proper motions.
Observations:
C11 at 115x.
Rho Gem
62 Gem; A 2124; ADS 6109; HD 58946; SAO 60118
Position: 0729+3147
A
B
Magnitude
4.16
10.92
Separation PA
—
—
220.4 +! 288 -
Rating: 4 E
Year
—
1962
Spectra
F0 V
K2 V
Colors
W
W
Notes:
1886: 211.6 @ 293. 5 measurements.
Star A is a spectroscopic binary.
Observations:
C8 at 104x. Without a double star list, you would not know it was a physical pair!
-5-
Zone 113
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.70 inches; B = 31.3 inches.
Separation: AB = 20.6 miles.
Distance (LY): 60
Total luminosity (Suns): 5.94
Scheiner 472
Position: 0710+3134
A
B
Magnitude
10.32
11.48
Rating: 5 E
Separation PA
—
—
18.1 185 =
Year
—
1991
Spectra
Colors
W
W
Notes:
1899: 18.2 @ 185. 4 measurements.
Observations:
C11 at 115x.
Distance (LY): 86
Total luminosity (Suns): 0.058
STF 1070
Rating: 5 E
ADS 5999; HD 57158; SAO 59996
Position: 0721+3401
A
B
C
Magnitude
8.69
9.43
10.60
Separation
—
1.7 87.3 -
PA
—
325 +
122 =
Notes:
AB 1829: 1.9 @ 318. 31 measurements.
AC 1880: 87.5 @ 122. 2 measurements.
Observations:
C8 at 104x.
-6-
Year
—
1997
1908
Spectra
A0
Colors
W
No
?
Zone 113
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.38 inches.
Separation: AB = 20.7 miles; AC = 1,063 miles.
Distance (LY): 7,800
Total luminosity (Suns): 3,080
Moderate
Hough 518
Rating: 4 M
ADS 5836; HD 54535; SAO 59843
Position: 0711+3022
A
B
Magnitude
8.32
10.30
Separation PA
—
—
2.9 =
143 -
Year
—
1978
Spectra
A2
Colors
W
W
Notes:
1896: 2.9 @ 144. 9 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.20 inches.
Separation: AB = 1.44 miles.
Distance (LY): 320
Total luminosity (Suns): 4.44
Espin 339
Rating: 5 M
ADS 5680; HD 52100; SAO 59697
Position: 0701+3225
A
B
C
Magnitude
6.59
13.00
11.54
Separation
—
15.9 32.1
PA
—
188 +
293
Notes:
AB 1907: 16.1 @ 187. 2 measurements.
AC 1 measurement.
-7-
Year
—
1925
1925
Spectra
A9 IV
Colors
W
?
W
Zone 113
Observations:
C11 at 115x. B was difficult!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.30 inches.
Separation: AB = 10.6 miles; AC = 21.4 miles.
Distance (LY): 427
Total luminosity (Suns): 33.0
Tau Gem
46 Gem; Bur 1009; ADS 5846; HD 54719; SAO 59858
Position: 0711+3015
A
B
Magnitude
4.41
12.35
Separation PA
—
—
60.2 +
345 +
Year
—
1963
Rating: 5 M
Spectra
K2 III
Colors
yO!
bW
Notes:
1913: 58.7 @ 342. 3 measurements. Star A is an irregular variable and an infra-red
source.
Observations:
C8 at 104x. Moderate field to the NE.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 49.5 inches.
Separation: AB = 28.4 miles.
Distance (LY): 302
Total luminosity (Suns): 126.08
-8-
Zone 113
Deep Sky Objects
Difficult
NGC 2379
Rating: 5 D
Other Names: UGC 3857
Position: 0727+3349
Type: Gal
Surface brightness: 12.8
Class: SA0:
Dimensions: 48"
Magnitude: 13.5
Observations:
C11 at 125x. Very small and faint spot without a nucleus. Two very faint stars align
just N of it.
Radial velocity (km/sec): +4,030
NGC 2389
Rating: 5 D
Other Names: H III 901; UGC 3872
Position: 0729+3352
Type: Gal
Surface brightness: 13l.8
Class: SAB(rs)c
Dimensions: 2.0 x 1.5
Observations:
C8 at 206x. It looks like a 12m star without a halo.
Radial velocity (km/sec): +3,957
-9-
Magnitude: 12.9
PA: 83
Zone 113
Zone 113, Map 2
Double Stars
Easy
STF 1012
Rating: 3 E
ADS 5750; HD 268551
Position: 0705+2807
A
B
Magnitude
9.05
9.83
Separation PA
—
—
12.7 168 =
Year
—
1991
Spectra
G0
Colors
Y
W
Notes:
1829: 12.8 @ 168. 14 measurements. Hipparcos gives discordant distances: 55 light
years and 69. The stars also have different proper motions.
Observations:
C11 at 115x.
OSS 83
Hough 519; ADS 5827; HD 54371; SAO 79121
Position: 0710+2544
A
B
C
Magnitude
7.09
13.11
7.77
Separation
—
22.2 +
119.0 +!
PA
—
103 80 -
Rating: 4 E
Year
—
1927
1992
Spectra
G8 V
F0
Colors
W
?
W
Notes:
AB 1891: 19.7 @ 124. 6 measurements.
AC 1874: 105.4 @ 87. 26 measurements. Hipparcos/Tycho mission data show
different distances for these stars (80 and 475 light years); they may be optical.
Star A is a spectroscopic binary.
Observations:
C8 at 206x.
- 10 -
Zone 113
A. G. 332
Rating: 4 E
HD 55705; SAO 79205
Position: 0715+2601
A
B
Magnitude
9.33
10.46
Separation PA
—
—
27.1 +
353 +
Year
—
1991
Spectra
A2
Colors
W
O
Notes:
1893: 24.7 @ 352. 6 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.62 inches.
Separation: AB = 24.5 miles.
Distance (LY): 580
Total luminosity (Suns): 10
h421
Rating: 4 E
SAO 79369
Position: 0725+2638
A
B
Magnitude
9.16
11.51
Separation PA
—
—
23.6 +
195 =
Year
—
1991
Notes:
1910: 23.2 @ 195. 4 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 36.8 inches.
Separation: AB = 50.8 miles.
Distance (LY): 1,380
Total luminosity (Suns): 37
- 11 -
Spectra
K5
Colors
Y
?
Zone 113
h406
Rating: 5 E
ADS 5662; HD 267497; SAO 78956
Position: 0700+2745
A
B
Magnitude
9.77
10.00
Separation PA
—
—
11.1 =
192 +
Year
—
1912
Spectra
Colors
W
?
Notes:
1895: 11.1 @ 188. 4 measurements.
Observations:
C11 at 115x.
Distance (LY): 92
Total luminosity (Suns): 0.148
Hough 31
Rating: 5 E
ADS 5897;
Position: 0714+2957
A
B
Magnitude
10.53
11.20
Separation PA
—
—
11.0 +
8+
Year
—
1930
Spectra
Colors
W
?
Notes:
1886: 10.9 @ 7. 5 measurements.
Observations:
C11 at 115x.
Hipparcos 1012
Position: 0719+2518
A
B
Magnitude
9.81
11.61
Rating: 5 E
Separation PA
—
—
12.6 184 -
- 12 -
Year
—
1991
Spectra
G5
Colors
Y
W
Zone 113
Notes:
1894: 13.2 @ 186. 4 measurements.
The Tycho-2 Catalog indicates a single star entry.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.5 inches.
Separation: AB = 9.69 miles.
Distance (LY): 493
Total luminosity (Suns): 2.70
Moderate
STF 1014
Rating: 3 M
ADS 5770; SAO 79046
Position: 0706+2608
A
B
Magnitude
9.91
9.93
Separation PA
—
—
2.0 220 +?
Year
—
1991
Spectra
F8
Colors
W
W
Notes:
1830: 2.1 @ 32. 28 measurements. Quadrant reversal?
Observations:
C11 at 339x.
Hipparcos 1025
Position: 0720+2758
A
B
Magnitude
9.85
11.54
Rating: 4 M
Separation PA
—
—
3.2
106
Notes:
1 measurement.
- 13 -
Year
—
1991
Spectra
G0
Colors
yW
W
Zone 113
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.8 inches.
Separation: AB = 136 miles.
Distance (LY): 27,200
Total luminosity (Suns): 8,050
Fox 151
Rating: 5 M
HD 52202; SAO 78976
Position: 0701+2723
A
B
Magnitude
8.15
12.00
Separation PA
—
—
30.8
248
Year
—
1921
Spectra
A0
Colors
W
?
Notes:
1 measurement.
Observations:
C11 at 115x. It is at the end of a curving, meandering line of 8m stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.18 inches.
Separation: AB = 437 miles.
Distance (LY): 9,100
Total luminosity (Suns): 3,660
STF 1008
Rating: 5 M
ADS 5693; HD 52255; SAO 78983
Position: 0702+2634
A
B
Magnitude
8.58
9.96
Separation PA
—
—
2.4 =
272 +
- 14 -
Year
—
1991
Spectra
B9
Colors
W
O
Zone 113
Notes:
1830: 2.4 @ 270. 14 measurements.
Observations:
C11 at 339x.
Bpm 98
Rating: 5 M
SAO 79187
Position: 0714+2501
A
B
C
Magnitude
8.41
12.00
10.20
Separation
—
50.3
227.4
PA
—
156
249
Year
—
1910
Spectra
K1 V
Colors
Y
?
W
Notes:
Both 1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 2.25 inches.
Separation: AB = 6.43 miles; AC = 29.1 miles.
Distance (LY): 82
Total luminosity (Suns): 0.236
Difficult
STF 1037 rej
AC = OS 166; ADS 5871; HD 55130; SAO 79170
Position: 0713+2713
A
B
C
Magnitude
7.26
7.34
12.30
Separation
—
1.1 14.1 -
PA
—
316 88 -
- 15 -
Rating: 3 D
Year
—
1998
1962
Spectra
F8 V
F
Colors
W
W
No
Zone 113
Notes:
AB 1827: 1.2 @ 338. Over 100 measurements. The orbit has an extremely high
eccentricity; the stars were closest together in 1921; in 1965 they were about 1.3 @ 326.
Period is 116.5 years (Kamel, 1939), with semi-major axis of 0.93" and retrograde
motion.
AC 1898: 15.5 @ 110. 9 measurements.
Observations:
C8 at 280x.
C11 at 339x!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.60 inches; AB = 12.5 inches.
Separation: AB = 1,267 feet; AC = 3.16 miles.
Distance (LY): 144
Total luminosity (Suns): 6.2
Deep Sky Objects
Moderate
NGC 2371
Rating: 3 M
Other Names: PK 189+19.1; H II 316-317; The Gemini Nebula; The Doubler Bubble
Astronomical League Program: Herschel 400 Club
Position: 0726+2929
Type: Pn
Dimensions: 55"
Class: 3a+6
Magnitude: 11.3
Notes:
It was discovered by William Herschel in 1785.
It is expanding at 53 k/s.
Observations:
C11 at 115x + O-III filter. Very obvious with this rig (but almost invisible without
the O-III). Brighter towards the center, and slightly oblong. No ring, no central star
visible. Strangely, higher magnification degrades the view.
- 16 -
Zone 113
C8 at 83x. Small, faint, and almost stellar. It has uneven surface brightness, the SE
lobe being brighter. The central star is hard to pick up (12.5m).
Model (where the Sun is a baseball):
Its diameter would be 335 miles.
Distance (LY): 3,900
Luminosity (suns): 36
NGC 2331
Rating: 5 M
Other Names: Collinder 126; H VIII 40
Astronomical League Program: Herschel II Club
Position: 0707+2721
Type: Oc
Dimensions: 18'
Class: IV 1m
Cluster population: 30
Magnitude: 8.4
Notes:
The brightest star is 9m.
Observations:
C8 at 83x. Dominated by a 10m "W". Using averted vision, I was able to resolve 12
stars. Note the triangular shape.
C11 at 115x. Very sparse; not much richer than the general field. 22 stars counted.
- 17 -
Zone 113
Zone 113, Map 3
Double Stars
Easy
STF 1119
Rating: 3 E
ADS 6230; HD 60987; SAO 60242
Position: 0739+3343
A
B
Magnitude
7.78
9.18
Separation PA
—
—
3.1 +
353 +
Year
—
1998
Spectra
F0
Colors
W
B
Notes:
1829: 2.9 @ 350. 19 measurements.
Observations:
C11 at 115x!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.3 inches.
Separation: AB = 1.83 miles.
Distance (LY): 379
Total luminosity (Suns): 10.9
OS 89
Franks; HD 63610; SAO 60380
Position: 0751+3137
A
B
Magnitude
6.83
7.73
Rating: 3 E
Separation PA
—
—
76.7 =
84 +
Year
—
1995
Notes:
1875: 76.7 @ 83. 19 measurements.
The stars share common proper motion and distance.
- 18 -
Spectra
A5 IV
A5
Colors
W
bW
Zone 113
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.15 inches; B = 8.00 inches.
Separation: AB = 83.8 miles.
Distance (LY): 700
Total luminosity (Suns): 102
Bur 22
Rating: 4 E
ADS 6162; HD 59848; SAO 60171
Position: 0733+3252
A
B
Magnitude
8.26
10.40
Separation PA
—
—
6.4 =
150 +
Year
—
1988
Spectra
G5
Colors
Y
W
Notes:
1875: 6.4 @ 149. 12 measurements.
The stars have similar proper motions.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.7 inches.
Separation: AB = 2,482 feet.
Distance (LY): 48
Total luminosity (Suns): 0.099
Kustner 30
Rating: 4 E
ADS 6194
Position: 0736+3419
A
B
Magnitude
8.91
9.72
Separation PA
—
—
3.1 111 =
Notes:
1901: 3.4 @ 111. 12 measurements.
- 19 -
Year
—
1997
Spectra
F0
Colors
W
bW
Zone 113
Observations:
C11 at 115x!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.0 inches.
Separation: AB = 4.78 miles.
Distance (LY): 990
Total luminosity (Suns): 31
Kustner 95
Position: 0745+3014
A
B
Magnitude
9.95
10.74
Rating: 4 E
Separation PA
—
—
41.4 +
58 +
Year
—
1991
Spectra
G5
Colors
Y
W
Notes:
AB 1901: 39.4 @ 53. 7 measurements.
Observations:
C11 at 115x.
Pi Gem
80 Gem; STF 1135; ADS 6364; HD 62898; SAO 60340
Position: 0748+3325
A
B
C
Magnitude
5.14
11.40
10.63
Separation
—
19.8 91.8 -
PA
—
215 +
343 +
Notes:
Variable?
AB 1831: 22.6 @ 212. 7 measurements.
AC 1903: 92.0 @ 341. 5 measurements.
Observations:
C11 at 115x.
- 20 -
Year
—
1988
1988
Rating: 4 E
Spectra
M1 IIIa
Colors
Y!!
W
bW
Zone 113
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 1.20 inches.
Separation: AB = 17.3 miles; AC = 80.2 miles.
Distance (LY): 560
Total luminosity (Suns): 226
Scheiner 483
Position: 0753+3138
A
B
Magnitude
10.51
10.70
Rating: 4 E
Separation PA
—
—
22.6 +
151 +
Year
—
1991
Spectra
K0
Colors
Y
W
Notes:
1894: 21.6 @ 150. 9 measurements.
Hipparcos gives discordant distances: 82 light years to A, 44 to B. The stars also
have different proper motions.
Observations:
C11 at 115x.
A 673
Dommanget 1 (C); ADS 6137; HD 59372; SAO 60144
Position: 0731+3034
A
B
C
Magnitude
8.59
8.93
8.77
Separation
—
0.4 =
94 +
PA
—
352 +
112 =
Year
—
1995
1955
Rating: 5 E
Spectra
A0
Colors
W
No
W
Notes:
AB 1904: 0.4 @ 341. 17 measurements.
AC 1952: 90 @ 112. 3 measurements.
Hipparcos gives discordant distances: 1,400 light years to A and 2,970 to C.
Observations:
C11 at 115x.
B was not detected at any magnification.
- 21 -
Zone 113
OS 175
Rating: 5 E
ADS 6185; HD 60318; SAO 60204
Position: 0735+3058
A
B
Magnitude
5.34
10.29
Separation PA
—
—
80.9 195 -
Year
—
1989
Spectra
K0 III
Colors
Y
W
Notes:
1893: 81.1 @ 196. 7 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 38.3 miles.
Distance (LY): 303
Total luminosity (Suns): 56
Espin 419
Rating: 5 E
ADS 6203
Position: 0737+3342
A
B
C
Magnitude
10.32
11.84
12.50
Separation
—
58.7 3.6
PA
—
43 126
Notes:
AB 1899: 58.9 @ 44. 8 measurements.
AC 1 measurement.
Observations:
C11 at 115x. C was not detected.
- 22 -
Year
—
1991
Spectra
Colors
W
W
No
Zone 113
Ball 24
S Cnc; Sinachopoulos 32 (C, D, E); HD 63015; SAO 60345
Position: 0748+3251
A
B
C
D
Magnitude
7.21
11.38
14.20
13.80
Separation
—
47.6 +
65
77
PA
—
40 67
340
Year
—
1989
Rating: 5 E
Spectra
G5
Colors
Y
W
No
No
Notes:
AB 1879: 44.3 @ 47. 4 measurements.
AC 1989: 65 @ 67. 2 measurements.
AD 1989. 1 measurement.
A is an Algol-type system.
Observations:
C11 at 115x. C and D were not detected.
Ball 25
Rating: 5 E
HD 63589; SAO 60379
Position: 0751+3314
A
B
Magnitude
6.03
10.96
Separation PA
—
—
78 =
146 =
Year
—
1989
Notes:
1879: 78 @ 146. 3 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.13 inches.
Separation: AB = 25.3 miles.
Distance (LY): 208
Total luminosity (Suns): 13.6
- 23 -
Spectra
A2m
Colors
W
W?
Zone 113
Moderate
Alpha Gem
Rating: 1 M
Castor; 66 Gem; C = YY Gem; STF 1110; ADS 6175; HD 60178; SAO 60198
Position: 0735+3153
A
B
C
D
Magnitude
1.58
2.62
8.80
Separation
—
3.7 68.0 186.2 -!
PA
—
61 -?
163 =
222 =
Year
—
1999
1998
1987
Spectra
A1 V
A5 V
Colors
W
W
?
No
Notes:
It was first recorded by Cassini in 1678. 1819: 5.5 @ 270. Over 100 measurements.
AC 1835: 72.5 @ 163. Over 100 measurements.
AD 1902: 204.4 @ 222. 3 measurements.
Star A is a spectroscopic binary with a 2.9283 day period and an infra-red source.
Each star is twice the size of the Sun. Star B is also a spectroscopic binary, as is C (both
are red dwarfs). The orbital period of AB is 511.3 years (Muller, 1956), although Heintz
(1988) suggests 467.0 years. The C star’s orbit may take as long as 37,000 years.
In 1803 Herschel coined the term "binary" to refer to this star, a tag that has been
applied to all true double stars.
Castor A and Castor A’ are both A-type main sequence stars of equal size and
luminosity (each being twice the size of the Sun, 12 times as bright, and 1.6 times as
massive). Castor B and Castor B’ are both the same size (1.5 times the Sun’s diameter)
and brightness (6 times the Sun’s luminosity each). Each weighs in at 1.15 solar masses.
Castor C and Castor C’ are a pair of red dwarfs (dK6) orbiting about 1,100 AU from AB.
CC’ are also an eclipsing binary (the orbit lies in the same plane as our line of sight, so
the stars periodically pass in front of each other). Castor C is about 63% as massive as
the Sun, 76% as large, and 2.5% as bright; Castor C’ has vital stats of 57%, 68%, and
2.5%.
From James Kaler's Star Notes:
In classical mythology, Castor is the mortal twin of Pollux, the twin warriors whose
stars dominate the bright zodiacal constellation of Gemini. Though Castor is the fainter of
the two, it still received the Alpha designation from Bayer, who made Pollux the Beta
star. To the naked eye, Castor shines down to us as a seemingly ordinary hydrogen-fusing
"class A" star that appears much like Vega, the "A" stars fairly hot, with temperatures
between about 7,000 and 10,000 degrees Kelvin.
Castor has no physical relation with Pollux, and at a distance of 52 light years is half
again as far away as its mythological companion.
- 24 -
Zone 113
The telescope reveals Castor's real claim to fame as a remarkable multiple star. Even a
modest amateur instrument shows bright Castor to consist of a pair of similar stars only a
couple seconds of arc apart. About a minute of arc away to the south lies a ninth
magnitude companion. The bright pair are in elliptical orbit about each other with a 400
year period, and are now about as close in the sky as they can get, making them
something of a challenge to separate. The dim companion is so far away from the bright
pair, about 1,000 times the distance between the Earth and the Sun, that its orbital motion
is too slow to have been seen.
Castor A and Castor B are also doubles (spectrographic)! Castor A consists of almost
identical stars, each with about two solar masses, in a 9.2 day orbit about each other, the
stars about a tenth of Mercury's distance from the Sun apart. Castor B's twin stars orbit
even faster, making their circuit in a mere 2.9 days. Moreover, the faint distant member,
Castor C, is also double! It too consists of nearly identical stars, though much cooler lowmass "class M" stars with temperatures of only about 4,000 Kelvin. The two are only
about two solar diameters apart and orbit each other every 20 hours. One or both are
"flare stars," stars that will suddenly change their brightnesses as a result of erratic
surface magnetism. Such stars are thought to be made when their contracting birth-clouds
divide, then divide and each divide again as a result of rapid rotation.
Castor may be part of a hugely extended, physically related, group of stars called the
"Castor Moving Group" that includes Vega, Fomalhaut, Zubenelgenubi, and Alderamin
in Cepheus. The properties of the whole set suggest an age, and an age for its member
stars, of about 200 million years.
Observations:
C8 at 206x. Some observers see both A and B as bW. John Herschel called it "the
largest and finest of all the double stars in our hemisphere."
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.50 inches; B = 3.00 inches; C = 0.19 inches; A’ = 4.50 inches; B’
= 3.50 inches; C’ = 0.18 inches.
Separation: AB = 510 feet; AC = 1.28 miles; AA’ = 3.45 feet; BB’ = 2.55 feet;
CC’ = 16.5 inches.
Distance (LY): 52
Total luminosity (Suns): 52.06
- 25 -
Zone 113
STF 1123
Rating: 2 M
ADS 6275; HD 61629; SAO 60273
Position: 0742+3325
A
B
Magnitude
9.25
9.79
Separation PA
—
—
3.6 166 +
Year
—
1999
Spectra
F8
Colors
W
W
Notes:
1829: 3.7 @ 163. 12 measurements.
Observations:
C8 at 280x. It is a lonely pair in a bleak field, nestled inside a large 45-45-90 right
triangle of 12m stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.1 inches.
Separation: AB = 1.35 miles.
Distance (LY): 242
Total luminosity (Suns): 1.6
OS 173 rej
Rating: 4 M
ADS 6173; HD 60106; SAO 60193
Position: 0735+3307
A
B
C
Magnitude
7.89
12.57
9.67
Separation
—
18.9 =
45.5 +
PA
—
234 =
350 +
Year
—
1987
1991
Spectra
A2 V
Colors
W
?
W
Notes:
AB 1843: 18.9 @ 234. 13 measurements.
AC 1867: 43.1 @ 347. 16 measurements.
Observations:
C8 at 104x. Star B is very difficult and will require averted vision. There is a nice 5star chain to the N; the brightest star in this chain is 9m and dO.
- 26 -
Zone 113
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches.
Separation: AB = 9.91 miles; AC = 23.9 miles.
Distance (LY): 336
Total luminosity (Suns): 7.08
OS 172 rej
h 3295; BDS 4152; ADS 6111; HD 58987; SAO 60125
Position: 0731+3448
A
B
Magnitude
7.91
11.90
Separation PA
—
—
15.4 +
248 +
Year
—
1929
Rating: 5 M
Spectra
A0
Colors
W
?
Notes:
1878: 12.0 @ 245. 4 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.09 inches.
Separation: AB = 35.6 miles.
Distance (LY): 1,480
Total luminosity (Suns): 121
OS 181
Rating: 5 M
ADS 6337; HD 62488; SAO 60322
Position: 0746+3433
A
B
Magnitude
7.99
12.30
Separation PA
—
—
6.7 +
267 +
Notes:
1848: 6.0 @ 255. 5 measurements.
Observations:
C11 at 115x.
- 27 -
Year
—
1987
Spectra
A3
Colors
W
?
Zone 113
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.39 inches.
Separation: AB = 5.18 miles.
Distance (LY): 496
Total luminosity (Suns): 12.4
Deep Sky Objects
Moderate
NGC 2435
Rating: 5 M
Other Names: UGC 3996; H II 616
Position: 0744+3139
Type: Gal
Surface brightness: 12.8
Class: Sa
Dimensions: 2.2' x 0.5'
Magnitude: 12.8
PA: 36
Observations:
C11 at 125x. A faint streak, about 3x1 in ratio of dimensions. Fairly even with no
obvious nucleus.
Radial velocity (km/sec): +4,189
- 28 -
Zone 113
Zone 113, Map 4
Double Stars
Easy
A. G. 335
Rating: 4 E
ADS 6139
Position: 0731+2510
A
B
Magnitude
9.77
10.63
Separation PA
—
—
3.9 +
298 +
Year
—
1991
Spectra
Colors
Y
O
Notes:
1899: 3.2 @ 286. 10 measurements.
Observations:
C11 at 115x.
Distance (LY): 124
Total luminosity (Suns): 0.216
South 560
Rating: 4 E
HD 63138; SAO 79703
Position: 0748+2846
A
B
Magnitude
6.97
9.79
Separation PA
—
—
88.4 358 -
Year
—
1991
Spectra
K0 III
Colors
Y
rO
Notes:
1825: 89.7 @ 359. 11 measurements. The stars show similar proper motions.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 78.6 miles.
Distance (LY): 570
Total luminosity (Suns): 43
- 29 -
Zone 113
H V 67
Rating: 4 E
SAO 79706
Position: 0749+2855
A
B
Magnitude
9.09
10.82
Separation PA
—
—
50.6 +
10 =
Year
—
1991
Spectra
K2
Colors
O
R
Notes:
1899: 49.1 @ 10. 4 measurements.
Observations:
C8 at 104x. I viewed this pair a year apart and the second time I thought the colors
looked more like Y and B. Rich, bright field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 28.6 inches.
Separation: AB = 8.68 miles.
Distance (LY): 110
Total luminosity (Suns): 0.3
STF 1144
Rating: 4 E
ADS 6382; HD 63238
Position: 0749+2834
A
B
Magnitude
7.82
10.48
Separation PA
—
—
8.2 +
358 =
Year
—
1991
Spectra
F0
Colors
W
W
Notes:
1829: 8.0 @ 358. 10 measurements.
Observations:
C8 at 104x. This star is the E vertex of a right triangle in which South 560 is the right
angle; the third vertex is a 7.5m star to the NW (SAO 79697).
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.3 inches.
Separation: AB = 10.9 miles.
Distance (LY): 850
Total luminosity (Suns): 35
- 30 -
Zone 113
Olivier 170
Couiteau 951; SAO 79780
Position: 0754+2753
A
B
Magnitude
9.60
10.05
Rating: 4 E
Separation PA
—
—
3.1 +
135 -
Year
—
1999
Spectra
Colors
W
W
Notes:
1937: 2.7 @ 136. 3 measurements.
Identity with Couteau 951 likely-- same position and Couteau AB 1973: 2.9 @ 137. 3
measurements. 1999 was 3.1 @ 135.
Observations:
C11 at 115x.
Distance (LY): 89
Total luminosity (Suns): 0.171
STF 1155
Couteau 1111 (Aa); ADS 6444; HD 64350; SAO 79784
Position: 0754+2610
A
B
a.
Magnitude
7.80
11.40
10.00
Separation
—
17.2 +
0.5 +
PA
—
341 166 +
Year
—
1959
1988
Rating: 4 E
Spectra
K2
Notes:
AB 1827: 14.7 @ 343. 7 measurements.
Aa 1974: 0.4 @ 156. 2 measurements.
Observations:
C8 at 104x. A triangle of 10.2m stars (90" per side) lies to the E.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 26.5 inches.
Separation: AB = 2.49 miles; AC = 382 feet.
Distance (LY): 93
Total luminosity (Suns): 0.56
- 31 -
Colors
O!
W
No
Zone 113
h765
Rating: 5 E
HD 61364; SAO 79590
Position: 0740+2643
A
B
C
Magnitude
8.66
12.63
12.68
Separation
—
21.9 46.4 +
PA
—
226 +
301 +
Year
—
1987
1987
Spectra
G5 V
Colors
yW
W
W
Notes:
AB 1901: 23.6 @ 213. 5 measurements.
AC 1901: 40.7 @ 297. 4 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches.
Separation: AB = 10.7 miles; AC = 22.7 miles.
Distance (LY): 313
Total luminosity (Suns): 3.35
Sigma Gem
75 Gem; Ball 23; HD 62044; SAO 79638
Position: 0743+2853
A
B
Magnitude
4.23
11.43
Rating: 5 E
Separation PA
—
—
182.2 +
316 +
Year
—
1909
Spectra
K1 III
Colors
dO!
W
Notes:
1877: 178.6 @ 315. 2 measurements.
Star A is a spectroscopic binary with a 19.605 day period and an infra-red source..
Member of the Eta Cep Group. It might also be a radio binary.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 2.40 inches.
Separation: AB = 34.7 miles.
Distance (LY): 122
Total luminosity (Suns): 24.7
- 32 -
Zone 113
Couteau 951
Rating: 3 M
SAO 79780
Position: 0754+2753
A
B
Magnitude
9.87
10.69
Separation PA
—
—
3.1 +
135 -
Year
—
1999
Spectra
G5
Colors
Y
Y
Notes:
1973: 2.7 @ 136. 4 measurements.
Observations:
C8 at 206x. It is the acute vertex of a bright right triangle.
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.5 inches.
Separation: AB = 2,270 feet.
Distance (LY): 89
Total luminosity (Suns): 0.16
Beta Gem
Rating: 5 M
Pollux; Bur 580 (B, D, E, F, G); SII 5; ADS 6335; HD 62509; SAO 79666; H VI 42 (C)
Position: 0745+2802
A
B
C
D
E
F
Magnitude
1.14
13.70
8.90
11.70
9.7
10.4
Separation
—
29.7 -!!
243 +!!
1.4 =
275 +!!
301 +!!
PA
—
280 +
75 +
135 +
89 77 +
Year
—
1987
1987
1922
Notes:
AB 1880: 41.4 @ 275. 6 measurements.
AC 1781: 117 @ 66. 9 measurements.
AD 1878: 1.4 @ 128. 7 measurements.
AE 1879: 206 @ 90. 8 measurements. 1987 shown.
AF 1836: 204 @ 74. 15 measurements. 1987 shown.
- 33 -
Spectra
K0 IIIb
Colors
Y!
No
W
No
W
W
Zone 113
Observations:
C11 at 193x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 1.57 miles; AC = 12.9 miles; AD = 370 feet; AE = 463 feet; AF
= 507 feet.
Distance (LY): 34
Total luminosity (Suns): 32
Difficult
Espin 420
Rating: 5 D
SAO 79675
Position: 0746+2845
A
B
Magnitude
9.35
11.37
Separation PA
—
—
60.8 +
118 -
Year
—
1907
Notes:
1901: 59.0 @ 119. 2 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 37.1 inches.
Separation: AB = 12.6 miles.
Distance (LY): 133
Total luminosity (Suns): 0.24
- 34 -
Spectra
K5
Colors
Y
?
Zone 113
Deep Sky Objects
Difficult
NGC 2449
Rating: 5 D
Other Names: UGC 4026
Position: 0747+2656
Type: Gal
Surface brightness: 13.1
Class: Sab
Dimensions: 1.3' x 0.6'
Magnitude: 13.4
PA: 137
Observations:
C11 at 193x. The faintest of ovals just west of a 12m triangle. The nucleus did not
stand out at all.
Radial velocity (km/sec): +4,778
- 35 -
Zone 113
Zone 107 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
STF 1012
0705+2807
3E
2
Espin 341
0720+3226
3E
1
South 546
0721+3128
3E
1
STF 1119
0739+3343
3E
3
OS 89
0751+3137
3E
3
A. G. 129
0701+3156
4E
1
OSS 83
0710+2544
4E
2
A. G. 332
0715+2601
4E
2
STF 1054
0718+3457
4E
1
h421
0725+2638
4E
2
Scheiner 479
0727+3054
4E
1
Rho Gem
0729+3147
4E
1
A. G. 335
0731+2510
4E
4
Bur 22
0733+3252
4E
3
Kustner 30
0736+3419
4E
3
Kustner 95
0745+3014
4E
3
South 560
0748+2846
4E
4
Pi Gem
0748+3325
4E
3
H V 67
0749+2855
4E
4
STF 1144
0749+2834
4E
4
Scheiner 483
0753+3138
4E
3
Component
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
C
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
- 36 -
Mag
9.05
9.83
10.10
10.60
8.64
9.41
9.81
7.78
9.18
6.83
7.73
9.68
10.67
7.09
13.11
7.77
9.33
10.46
8.10
9.65
9.93
9.16
11.51
10.61
10.76
4.16
10.92
9.77
10.63
8.26
10.40
8.91
9.72
9.95
10.74
6.97
9.79
5.14
11.40
10.63
9.09
10.82
7.82
10.48
10.51
10.70
Separation
—
12.7 —
3.1 —
86.8 +
143.6 +
—
3.1 +
—
76.7 =
—
6.3 +
—
22.2 +
119.0 +!
—
27.1 +
—
18.7 +
96.9 +!
—
23.6 +
—
15.1 +
—
220.4 +!
—
3.9 +
—
6.4 =
—
3.1 —
41.4 +
—
88.4 —
19.8 91.8 —
50.6 +
—
8.2 +
—
22.6 +
PA
—
168 =
—
252 +
—
358 143.6 +
—
353 +
—
84 +
—
24 +
—
103 119.0 +!
—
353 +
—
292 =
96.9 +!
—
195 =
—
42 -?
—
288 —
298 +
—
150 +
—
111 =
—
58 +
—
358 —
215 +
91.8 —
10 =
—
358 =
—
151 +
Zone 113
Designation
Position
Rating
Map
Olivier 170
0754+2753
4E
4
STF 1155
0754+2610
4E
4
h406
0700+2745
5E
2
Scheiner 472
0710+3134
5E
1
Hough 31
Hipparcos
1012
0714+2957
5E
2
0719+2518
5E
2
STF 1070
0721+3401
5E
1
A 673
0731+3034
5E
3
OS 175
0735+3058
5E
3
Espin 419
0737+3342
5E
3
h765
0740+2643
5E
4
Sigma Gem
0743+2853
5E
4
Ball 24
0748+3251
5E
3
Ball 25
0751+3314
5E
3
Alpha Gem
0735+3153
1M
3
STF 1123
0742+3325
2M
3
STF 1014
0706+2608
3M
2
Couteau 951
0754+2753
3M
4
Hough 518
Hipparcos
1025
0711+3022
4M
1
0720+2758
4M
2
OS 173 rej
0735+3307
4M
3
Fox 151
0701+2723
5M
2
Component
A
B
A
B
a
A
B
A
B
A
B
A
B
A
B
C
A
B
C
A
B
A
B
C
A
B
C
A
B
A
B
C
D
A
B
A
B
C
D
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
- 37 -
Mag
9.60
10.05
7.80
11.40
10.00
9.77
10.00
10.32
11.48
10.53
11.20
9.81
11.61
8.69
9.43
10.60
8.59
8.93
8.77
5.34
10.29
10.32
11.84
12.50
8.66
12.63
12.68
4.23
11.43
7.21
11.38
14.20
13.80
6.03
10.96
1.58
2.62
8.80
9.25
9.79
9.91
9.93
9.87
10.69
8.32
10.30
9.85
11.54
7.89
12.57
9.67
8.15
12.00
Separation
—
3.1 +
—
17.2 +
0.5 +
—
11.1 =
—
18.1 —
11.0 +
—
12.6 —
1.7 87.3 —
0.4 =
94 +
—
80.9 —
58.7 3.6
—
21.9 46.4 +
—
182.2 +
—
47.6 +
65
77
—
78 =
—
3.7 68.0 186.2 -!
—
3.6 —
2.0 —
3.1 +
—
2.9 =
—
3.2
—
18.9 =
45.5 +
—
30.8
PA
—
135 —
341 166 +
—
192 +
—
185 =
—
8+
—
184 —
325 +
87.3 —
352 +
94 +
—
195 —
43 3.6
—
226 +
46.4 +
—
316 +
—
40 65
77
—
146 =
—
61 -?
68.0 186.2 -!
—
166 +
—
220 +?
—
135 —
143 —
106
—
234 =
45.5 +
—
248
Zone 113
Designation
Position
Rating
Map
Espin 339
0701+3225
5M
1
STF 1008
0702+2634
5M
2
Tau Gem
0711+3015
5M
1
Bpm 98
0714+2501
5M
2
OS 172 rej
0731+3448
5M
3
Beta Gem
0745+2802
5M
4
OS 181
0746+3433
5M
3
STF 1037 rej
0713+2713
3D
2
Espin 420
0746+2845
5D
4
Component
A
B
C
A
B
A
B
A
B
C
A
B
A
B
C
D
E
F
A
B
A
B
C
A
B
Mag
6.59
13.00
11.54
8.58
9.96
4.41
12.35
8.41
12.00
10.20
7.91
11.90
1.14
13.70
8.90
11.70
9.70
10.40
7.99
12.30
7.26
7.34
12.30
9.35
11.37
Separation
—
15.9 32.1
—
2.4 =
—
60.2 +
—
50.3
227.4
—
15.4 +
—
29.7 -!!
243 +!!
1.4 =
275 +!!
301 +!!
—
6.7 +
—
1.1 14.1 —
60.8 +
PA
—
188 +
32.1
—
272 +
—
345 +
—
156
227.4
—
248 +
—
280 +
243 +!!
1.4 =
89 –
77 +
—
267 +
—
316 14.1 —
118 -
Deep Sky Objects
Object
NGC 2371
NGC 2331
NGC 2435
NGC 2379
NGC 2389
NGC 2449
Position
0726+2929
0707+2721
0744+3139
0727+3349
0729+3352
0747+2656
Rating
3M
5M
5M
5D
5D
5D
Map
2
2
3
1
1
4
Type
Pn (3a+6)
Oc (IV 1m)
Gal (Sa)
Gal (SA0:)
Gal (SAB(rs)c)
Gal (Sab)
- 38 -
Specifications
Surface
Mag
Br
11.3
8.4
12.8
12.8
13.5
12.8
12.9
13l.8
13.4
13.1
Population
30