Zone 31, Master Map
Normal View
Draco
+75°00'
Zone Master, Norm al View, 10 deg FOV
+74°00'
h1761
STF 2874
A 879
31-1
h3081
+72°00'
STF 2893
16 Cep
+73°00'
STF 2784
h3119
LDS 1988
+71°00'
h3035
h3044
A 783
H 28 β
STF 2771
STF 2835
Hussey 968
31-2
h1711
STF 2836
STF 2788 rej
OS 457
Stein 1054
Smart 157
Xi Cepξ Kurhah
STF 2844 rej
h1713
h1739
Espin 1921
22h 00m
Milburn 268
Hussey 959
SI 57
Milburn 309 NGC 7129
NGC 7142
STF 2843
STF 2842
NGC 7023
STF 2823
+67°00'
Milburn 1098
Haupt 28
h1747
Milburn 310
OS 226 rej
h1742
STF 2853
31-3
h1665
+65°00'
Milburn 431
Milburn 1096
Milburn 1099
+69°00'
A 1216
h1656
STF 2798
H I 48
NGC 7139
21h 48m
STF 2827
21h 36m
21h 24m
+68°00'
STF 2865
Beta Cep
Alfirk
+66°00'
h3110
STF 2883
+70°00'
h3112
21h 12m
21h 00m
Zone 31, Map 1
Normal Image
+77°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+76°00'
LDS 1948
+75°00'
OS 436
D
h1761
+74°00'
STF 2874
A 879
STF 2784
16 Cep
+73°00'
STF 2893
h3081
+72°00'
h3035
+71°00'
h3044
STF 2771
+70°00'
+69°00'
Alfirk β
Beta Cep
STF 2865
H 28
STF 2835
Milburn 431
Milburn 310
Hussey 968
OS 226 rej
STF 2853
Milburn 1096
22h 00m
21h 48m
NGC 7023
STF 2823
21h 36m
21h 24m
STF 2788 rej
21h 12m
21h 00m
+68°00'
Haupt 28
Zone 31, Map 2
Mirror Image
+77°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+76°00'
LDS 1948
+75°00'
OS 436
Draco
+74°00'
STF 2874
A 879
+73°00'
STF 2784
16 Cep
h3081
+72°00'
h3035
+71°00'
h3044
STF 2771
+70°00'
Alfirk H 28
Beta Cep
STF 2865
A 1216
+69°00'
β
STF 2835
Hussey 968
NGC 7023
21h 00m
21h 12m
STF 2823
STF 2788 rej
21h 24m
21h 36m
21h 48m
OS 226 rej
22h 00m
+68°00'
Haupt 28
+70°00'
Zone 31, Map 2
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+68°00'
+69°00'
A 1216
NGC 7023
+67°00'
STF 2788 rej
Milburn 268
+65°00'
+66°00'
Hussey 959
21h 24m
H I 48
21h 12m
21h 00m
20h 48m
+70°00'
Zone 31, Map 2
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+69°00'
A 1216
+68°00'
NGC 7023
+67°00'
STF 2788 rej
Milburn 268
+65°00'
+66°00'
Hussey 959
H I 48
20h 48m
21h 00m
21h 12m
21h 24m
Zone 31, Map 3
Normal Image
+71°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Beta Cep
Alfirk β
H 28
+70°00'
STF 2883
STF 2865
+69°00'
STF 2835
Milburn 431
Haupt 28
Hussey 968
Milburn 310
STF 2853
OS 226 rej
+68°00'
Milburn 1098
h1747
STF 2823
h1742
+67°00'
Milburn 1096
h1711
STF 2836
NGC 7129
Milburn 309
h1665
STF 2843 NGC 7142
h1656
+65°00'
OS 457
Stein 1054
STF 2798
+64°00'
STF 2844 rej
Smart 157
Kurhah
ξ
Xi Cep h1713
+66°00'
SI 57
Espin 1921
h1739
STF 2842
NGC 7139
STF 2827
22h 00m
21h 48m
21h 36m
21h 24m
Zone 31, Map 3
Mirror Image
+71°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Beta Cep
Alfirk
H 28
+70°00'
STF 2883
STF 2865
STF 2835
Milburn 431
+69°00'
β
Hussey 968
Milburn 310
STF 2823
OS 226 rej
STF 2853
+68°00'
Haupt 28
Milburn 1096
h1711
Milburn 309
NGC 7142 STF 2843
h1656
OS 457
STF 2844 rej Xi Cep
Smart 157
ξ Kurhah
h1713
+64°00'
Stein 1054
STF 2798
Espin 1921
STF 2842
NGC 7139
STF 2827
21h 24m
21h 36m
21h 48m
+65°00'
NGC 7129
+66°00'
STF 2836
SI 57
h1665
+67°00'
STF 2788 rej
22h 00m
Zone 31
Index
23 Double Stars, 3 Open Clusters
1
N
16 Cep ........................................................ 6
NGC 7023.................................................. 8
NGC 7129................................................ 17
NGC 7142................................................ 16
A
A 879 .......................................................... 5
O
B
Beta Cep..................................................... 3
OS 226 rej ................................................ 10
OS 457 ..................................................... 15
H
S
H 28 ............................................................ 4
h1656 ........................................................ 12
h1665 .......................................................... 9
h1711 ........................................................ 12
h3035 .......................................................... 2
h3044 .......................................................... 4
h3081 .......................................................... 5
Haupt 28................................................... 11
Hussey 959 ................................................ 7
Hussey 968 .............................................. 13
SI 57 ........................................................... 9
STF 2771 ................................................... 6
STF 2784 ................................................... 2
STF 2788 rej.............................................. 7
STF 2823 ................................................. 14
STF 2835 ................................................. 13
STF 2836 ................................................. 10
STF 2843 ................................................. 15
-1-
Zone 31
Zone 31, Map 1
Double Stars
Easy
STF 2784
Other name(s): ADS 14762; HD 202506; SAO 9983
Rating: 4 E
Position: 2111+7403
A
B
Magnitude
8.96
10.60
Separation PA
—
—
14.4 +
346 -
Year
—
1991
Spectra
A0 V
Colors
Y
rO
Notes:
1833: 14.1 @ 348. 14 measurements. The stars have different proper motions.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 16.2 miles.
Distance (LY): 720
Total luminosity (Suns): 14
h3035
Rating: 5 E
Position: 2126+7233
A
B
C
Magnitude
10.32
11.85
13.30
Separation
—
23.1 24.4 +
PA
—
128 204 +
Notes:
AB 1893: 22.4 @ 129. 5 measurements.
AC 1910: 23.6 @ 199. 2 measurements.
-2-
Year
—
1991
1925
Spectra
Colors
W
W
?
Zone 31
Observations:
C11 at 115x. C was very faint.
The entire system is bracketed by two 9.5m stars.
Distance (LY): 70
Total luminosity (Suns): 0.037
Beta Cep
Rating: 3 E
Other name(s): 8 Cep; Alfirk (Arabic name for the constellation); STF 2806; ADS
15032; HD 205021; SAO 10057
AL League Program: Double Star Certificate
Position: 2129+7034
A
B
Magnitude
3.20
7.90
Separation PA
—
—
13 251 +
Year
—
1984
Spectra
B2 III
A3 V
Colors
W
B
Notes:
AB 1830: 13.6 @ 250. 68 measurements.
The primary is a spectroscopic binary (10.893 day period).
The visual binary has an orbit of 50 years and the stars are at least 4,300 AU apart.
There is evidence for a shell surrounding the primary.
The system belongs to the Cep OB1 Association.
Beta Cep stars are classed as the same type of stars as Beta CMa stars. They are hot,
massive O9 to B3 stars just leaving the Main Sequence.
Observations:
C8 at 65x. Webb saw them as gW and B, then later as W and B. Franks in 1914
thought they were gW, V.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.00 inches; B = 8.10 inches.
Separation: AB = 12.2 miles; Aa = 2.59 feet.
Distance (LY): 600
Total luminosity (Suns): 1,540
-3-
Zone 31
H 28
Rating: 5 E
Position: 2132+7037
A
B
C
Magnitude
9.58
11.20
10.13
Separation
—
79.1 +
132.4 +
PA
—
343 +
169 -
Year
—
1984
1991
Spectra
G5
Colors
W
?
W
Notes:
AB 1904: 78.7 @ 340. 2 measurements.
AC 1894: 129.8 @ 170. 8 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.2 inches.
Separation: AB = 21.7 miles; AC = 36.4 miles.
Distance (LY): 176
Total luminosity (Suns): 0.652
h3044
Other name(s): ADS 15088
Rating: 5 E
Position: 2132+7133
A
B
Magnitude
10.03
10.46
Separation PA
—
—
7.7 255 =?
Year
—
1966
Notes:
1893: 8.1 @ 75. 5 measurements. Quadrant reversal?
Observations:
C8 at 83x.
Distance (LY): 79
Total luminosity (Suns): 0.08
-4-
Spectra
Colors
O
O
Zone 31
h3081
Rating: 4 E
Position: 2155+7307
A
B
Magnitude
9.85
11.07
Separation PA
—
—
32.2 315 =
Year
—
1991
Spectra
Colors
W
?
Notes:
1893: 32.3 @ 315. 5 measurements.
Observations:
C11 at 115x.
Moderate
A 879
Other name(s): ADS 14557; HD 200707; SAO 9927
Rating: 4 M
Position: 2100+7417
A
B
Magnitude
8.03
11.69
Separation PA
—
—
4.4 +
138 -
Year
—
1991
Notes:
1904: 4.1 @ 140. 5 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.3 inches.
Separation: AB = 5.69 miles.
Distance (LY): 830
Total luminosity (Suns): 35
-5-
Spectra
K0
Colors
Y
?
Zone 31
STF 2771
Other name(s): ADS 14630; SAO 9948
Rating: 3 M
Position: 2104+7045
A
B
Magnitude
9.53
9.61
Separation PA
—
—
2.7 =
212 -
Year
—
1999
Spectra
K2
Colors
W
W
Notes:
1832: 2.7 @ 213. 30 measurements.
Observations:
C8 at 280x. There is another 9.2m star about 6 min N.
Difficult
16 Cep
Other name(s): Bur 1509; HD 209369; SAO 10216
Rating: 5 D
Position: 2159+7311
A
B
Magnitude
5.03
11.80
Separation PA
—
—
131 173 -
Notes:
1910: 134 @ 174. 2 measurements.
Optical.
Observations:
C11 at 115x.
-6-
Year
—
1930
Spectra
F5 V
Colors
W
?
Zone 31
Zone 31, Map 2
Double Stars
Easy
STF 2788 rej
Other name(s): ADS 14819; SAO 19282
Rating: 4 E
Position: 2116+6721
A
B
Magnitude
8.43
10.25
Separation PA
—
—
8.0 354 -
Year
—
1992
Spectra
K0 III
Colors
Y
rO
Notes:
1893: 8.2 @ 355. 8 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 9.23 miles.
Distance (LY): 740
Total luminosity (Suns): 26
Difficult
Hussey 959
Other name(s): ADS 14578; HD 200708; SAO 19156
Rating: 3 D
Position: 2102+6643
A
B
Magnitude
8.24
9.20
Separation PA
—
—
1.3 159 +
-7-
Year
—
1991
Spectra
A2
Colors
W
W
Zone 31
Notes:
1904: 1.5 @ 153. 20 measurements.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.17 inches.
Separation: AB = 1.13 miles.
Distance (LY): 560
Total luminosity (Suns): 18
Deep Sky Objects
Difficult
NGC 7023
Other Names: Collinder 429, H IV 74
Astronomical League Program: Herschel II Certificate
Rating: 5 D
Position: 2102+6812
Type : Gn/Oc
Magnitude : 7.1
Dimensions: 5'
Observations:
C8 at 104x. A slight hint of fog just west of SAO 19158 (7.2m), a bW star.
-8-
Zone 31
Zone 31, Map 3
Double Stars
Easy
h1665
Other name(s): SAO 19484
Rating: 5 E
Position: 2133+6607
A
B
Magnitude
8.78
10.29
Separation PA
—
—
22.5 +
66 -
Year
—
1985
Spectra
G5
Colors
Y
W
Notes:
1893: 21.7 @ 72. 5 measurements.
The Tycho-2 Catalogue indicates a single star entry.
Observations:
C8 at 104x. Moderate field.
SI 57
Other name(s): HD 205741; SAO 19510
Rating: 5 E
Position: 2135+6643
Magnitude
A 6.95
B 7.03
Aa 11.00
Separation
—
182.4 +
125.2+
PA
—
25 347+
Year
—
1991
1987
Spectra
K1 III
K2 III
Colors
Y
W
?
Notes:
AB 1836: 179.0 @ 26. 11 measurements. Hipparcos/Tycho data show different
distances for these stars (580 and 1,050 light years); they may be optical. The stars also
have different proper motions.
Aa 1893: 123.1 @ 344. 6 measurements.
-9-
Zone 31
Observations:
C8 at 104x. You'd never know this was a binary without a double star list. Moderate
field.
STF 2836
Other name(s): ADS 15366; HD 207826; SAO 19665
Rating: 4 E
Position: 2149+6647
A
B
Magnitude
6.49
10.33
Separation PA
—
—
11.9 =
153 =
Year
—
1991
Spectra
F3 V
K2 IV
Colors
yW
O
Notes:
1832: 11.9 @ 153. 17 measurements. Star A is a spectroscopic binary (2.73 day
period). The stars share common proper motion.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.80 inches; B = 30.5 inches.
Separation: AB = 5.84 miles; Aa = 1.03 feet.
Distance (LY): 315
Total luminosity (Suns): 21
OS 226 rej
Other name(s): ADS 7880; HD 208411; SAO 19712
Rating: 5 E
Position: 2153+6806
A
B
Magnitude
7.41
8.90
Separation PA
—
—
77.0 +
248 +
Notes:
1876: 76 @ 246. 23 measurements.
- 10 -
Year
—
1991
Spectra
G8 II
A3 V
Colors
yW
W
Zone 31
This system may be optical as Hipparcos shows different distances (1,700 and 1,240
light years).
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 192 inches; B = 8.10 inches.
Separation: AB = 204 miles.
Distance (LY): 1,700
Total luminosity (Suns): 247
Haupt 28
Other name(s): HD 209044; SAO 19767
Rating: 3 E
Position: 2158+6842
A
B
Magnitude
8.39
8.73
Separation PA
—
—
35.8 37 -
Year
—
1991
Spectra
K2
Colors
Y
Y
Notes:
1894: 36.8 @ 41. 8 measurements.
This system may be optical as Hipparcos shows different distances (270 and 194 light
years).
Observations:
C11 at 115x.
- 11 -
Zone 31
h1711
Other name(s): ADS 15502; HD 209020; SAO 19766
Rating: 5 E
Position: 2158+6708
A
B
Magnitude
8.17
10.8
Separation PA
—
—
13.5
250
Year
—
1908
Spectra
F5+A
Colors
W
B
Notes:
1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.2 inches.
Separation: AB = 137 miles.
Distance (LY): 6,520
Total luminosity (Suns): 1,950
Moderate
h1656
Other name(s): Espin 1919 (a); ADS 15014
Rating: 5 M
Position: 2128+6525
A
B
C
Magnitude
9.52
10.60
10.20
Separation
—
13.6 +
22.3 +
PA
—
162 +
15 -
Year
—
1987
1987
Notes:
AB 1905: 13.5 @ 157. 6 measurements.
AC 1909: 15.0 @ 16. 5 measurements.
AD 1 measurement.
Abt found five more very faint comes, and Espin found one.
- 12 -
Spectra
K2 III
Colors
W
W?
W
Zone 31
Observations:
C11 at 115x.
STF 2835
Other name(s): ADS 15350; SAO 19657
Rating: 3 M
Position: 2148+6920
A
B
Magnitude
8.57
9.98
Separation PA
—
—
1.8 271 -
Year
—
1998
Spectra
F2
Colors
W
pO
Notes:
1832: 1.9 @ 276. 18 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.1 inches.
Separation: AB = 3.84 miles.
Distance (LY): 1,370
Total luminosity (Suns): 80
Difficult
Hussey 968
Other name(s): ADS 15225; HD 206631; SAO 19573
Rating: 4 D
Position: 2140+6823
A
B
Magnitude
8.52
9.79
Separation PA
—
—
1.3 +
145 +
Notes:
1904: 1.2 @ 144. 14 measurements.
- 13 -
Year
—
1991
Spectra
A0
Colors
W
W
Zone 31
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.32 inches.
Separation: AB = 1.35 miles.
Distance (LY): 670
Total luminosity (Suns): 18
STF 2823
Other name(s): ADS 15217; HD 206578; SAO 19566
Rating: 4 D
Position: 2140+6808
A
B
Magnitude
8.78
9.64
Separation PA
—
—
1.4 250 -
Year
—
1993
Notes:
1832: 1.6 @ 251. 16 measurements.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.40 inches.
Separation: AB = 3.51 miles.
Distance (LY): 1,610
Total luminosity (Suns): 91
- 14 -
Spectra
A2
Colors
W
W
Zone 31
STF 2843
Other name(s): ADS 15407; HD 208132; SAO 19686
Rating: 5 D
Position: 2152+6545
A
B
C
Magnitude
7.04
7.35
9.90
Separation
—
1.4 55.4 -
PA
—
148 +
276 +
Year
—
1997
1997
Spectra
A2m
G
Colors
W
B
?
Notes:
AB 1831: 2.4 @ 134. Over 100 measurements.
Hipparcos/Tycho data show different distances for the AB stars; they may be optical.
AC 1895: 55.5 @ 275. 8 measurements.
Observations:
C8 at 697x Webb saw A as Y.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.62 inches; B = 18.6 inches.
Separation: AB = 2,957 feet; AC = 22.5 miles.
Distance (LY): 260
Total luminosity (Suns): 21.3
OS 457
Other name(s): ADS 15467; HD 208682
Rating: 2 D
Position: 2156+6519
A
B
Magnitude
5.84
8.05
Separation PA
—
—
1.1 =
245 +
Notes:
1847: 1.1 @ 243. 27 measurements.
- 15 -
Year
—
1994
Spectra
B2.5 Ve
Colors
W
yW
Zone 31
Observations:
C8 at 697x + mask.
C11 at 560x. Very nice!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.2 inches.
Separation: AB = 2.05 miles.
Distance (LY): 1200
Total luminosity (Suns): 590
Deep Sky Objects
Easy
NGC 7142
Other Names: Collinder 442, H VII 66
Astronomical League Program: Herschel 400 Certificate
Rating: 4 E
Position: 2146+6548
Type : Oc
Dimensions: 4.3'
Class: I 2r
Cluster population: 100
Magnitude : 9.3
Notes:
It is 4 billion years old! Its earliest spectral type is a stodgy old F3. 186 stars belong
to this group. The brightest star is 12.1m.
The secret to its longevity lies in its position in the galaxy: 31,500 light years from
the galactic center and 1.600 light years above its plane.
Observations:
C8 at 104x. It resembles a cluster of grapes! Delicate and rich; note the 9m star on
the N side.
Model (where the Sun is a baseball):
Its diameter would be 1,330 miles, with the stars 139 miles (224 km) apart.
Distance (LY): 3,300
Luminosity (suns): 160
- 16 -
Zone 31
Moderate
NGC 7129
Other Names: H IV 75
Astronomical League Program: Herschel II Certificate
Rating: 3 M
Position: 2141+6606
Type : Oc/Gn
Dimensions: 2.7'
Class: IV 2pn
Cluster population: 10
Notes:
The brightest star is 11.5m.
Observations:
C8 at 65x. Nebulous, it surrounds four 10.5m stars. Rich field.
- 17 -
Magnitude : 12.0
Zone 31
Zone 31 Mini-Catalog
Double Stars
Star
Designation
Position
Rating
Map
Beta Cep
2129+7034
3E
1
Haupt 28
2158+6842
3E
3
STF 2784
2111+7403
4E
1
STF 2788 rej
2116+6721
4E
2
STF 2836
2149+6647
4E
3
h3081
2155+7307
4E
1
h3035
2126+7233
5E
1
h3044
2132+7133
5E
1
H 28
2132+7037
5E
1
h1665
2133+6607
5E
3
SI 57
2135+6643
5E
3
OS 226 rej
2153+6806
5E
3
h1711
2158+6708
5E
3
STF 2771
2104+7045
3M
1
STF 2835
2148+6920
3M
3
A 879
2100+7417
4M
1
h1656
2128+6525
5M
3
OS 457
2156+6519
2D
3
Hussey 959
2102+6643
3D
2
Hussey 968
2140+6823
4D
3
STF 2823
Star
2140+6808
Position
4D
Rating
3
Map
Component
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
C
A
B
A
B
a
Aa
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
- 18 -
Specifications
Mag
Sep from A
3.20
—
7.90
13 8.39
—
8.73
35.8 8.96
—
10.60
14.4 +
8.43
—
10.25
8.0 6.49
—
10.33
11.9 =
9.85
—
11.07
32.2 10.32
—
11.85
23.1 13.30
24.4 +
10.03
—
10.46
7.7 9.58
—
11.20
79.1 +
10.13
132.4 +
8.78
—
10.29
22.5 +
6.95
—
7.03
182.4 +
11.00
125.2+
7.41
—
8.90
77.0 +
8.17
—
10.80
13.5
9.53
—
9.61
2.7 =
8.57
—
9.98
1.8 8.03
—
11.69
4.4 +
9.52
—
10.60
13.6 +
10.20
22.3 +
5.84
—
8.05
1.1 =
8.24
—
9.20
1.3 8.52
—
9.79
1.3 +
8.78
—
9.64
1.4 Specifications
PA from A
—
251 +
—
37 —
346 —
354 —
153 =
—
315 =
—
128 24.4 +
—
255 =?
—
343 +
132.4 +
—
66 —
25 347+
—
248 +
—
250
—
212 —
271 —
138 —
162 +
22.3 +
—
245 +
—
159 +
—
145 +
—
250 -
Zone 31
Designation
STF 2843
2152+6545
5D
3
16 Cep
2159+7311
5D
1
Component
A
B
C
A
B
Mag
7.04
7.35
9.90
5.03
11.80
Sep from A
—
1.4 55.4 —
131 -
PA from A
—
148 +
55.4 —
173 -
Deep Sky Objects
Object
NGC 7142
NGC 7129
NGC 7023
Position
2146+6548
2141+6606
2102+6812
Rating
4E
3M
5D
Map
3
3
2
Type
Oc (I 2r)
Oc/Gn (IV 2pn)
Gn/Oc ()
- 19 -
Specifications
Surface
Mag
Br
9.3
12.0
7.1
Population
100
10