+66°00'
Zone 52, Master Map
Zone Master, Normal View, 10 deg FOV
STF 2284
Kuiper 86
STF 2343
STF 2332 rej
Hussey 938
OS 586
Espin 1840
Espin 126
STF 2377 rej
Comstock 4
Hussey 926
Espin 186
STF 2273
+64°00'
STF 2423
STF 2357
STF 2365 rej
STF 2334 rej
STF 2440e
+62°00'
c
Espin 2669
STF 2403
Omicron Dra
ο
STF 2410
Fox 81
+60°00'
h2836
NGC 6701
Milburn 139
Espin 2666
STF 2300 rej
STF 2398
LDS 1466
Milburn 1079
+58°00'
39 Dra
STF 2438
h2848
f
Bur 1274
+56°00'
d
STF 2433
46 Dra
19h 00m
18h 48m
18h 36m
18h 24m
A G 217
18h 12m
18h 00m
Zone 52, Map 1
Normal Image
+66°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2284
+65°00'
Kuiper 86
STF 2343
STF 2332 rej
OS 586
STF 2273
Espin 186 Hussey 926
Espin 126
+64°00'
Comstock 4
+63°00'
STF 2357
STF 2365 rej
STF 2334 rej
+61°00'
+62°00'
OSS 163
h2836
Fox 81
Espin 2662
+60°00'
Espin 2666
+59°00'
STF 2300 rej
39 Dra
18h 32m
18h 24m
18h 16m
18h 08m
18h 00m
Zone 52, Map 1
Mirror Image
STF 2284
Kuiper 86
STF 2343
STF 2332 rej
+65°00'
+66°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Comstock 4
STF 2273
OS 586
Hussey 926
Espin 186
+64°00'
Kruger 47
STF 2334 rej
+63°00'
STF 2357
+61°00'
+62°00'
OSS 163
Fox 81
Espin 2662
+60°00'
Espin 2666
+59°00'
STF 2300 rej
39 Dra
18h 00m
18h 08m
18h 16m
18h 24m
18h 32m
Zone 52, Map 2
Normal Image
+61°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Fox 81
h2836
Espin 2662
+60°00'
Espin 2666
+59°00'
STF 2300 rej
+57°00'
Espin 20
+58°00'
39 Dra
Bur 1274
+54°00'
+55°00'
Espin 79
+56°00'
STF 2278
18h 32m
18h 24m
18h 16m
A. G. 217
18h 08m
18h 00m
Zone 52, Map 2
Mirror Image
+61°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Fox 81
Espin 2662
+60°00'
Espin 2666
+59°00'
STF 2300 rej
39 Dra
+58°00'
Espin 20
+57°00'
Espin 1744
Bur 1274
+56°00'
STF 2278
+54°00'
+55°00'
Espin 79
18h 00m
18h 08m
A. G. 217
18h 16m
18h 24m
18h 32m
Zone 52, Map 3
Normal Image
Kuiper 86
STF 2423
STF 2343
STF 2332 rej
+65°00'
+66°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+64°00'
Hussey 938
Espin 1840
STF 2357
STF 2365 rej
STF 2377 rej
+63°00'
Espin 126
+62°00'
STF 2440
+61°00'
Espin 2669
STF 2403
h2836
NGC 6701
+60°00'
Milburn 139
STF 2398
19h 04m
18h 56m
LDS 1466
Milburn 1079
STF 2410
18h 48m
18h 40m
+59°00'
Omicron Draο
18h 32m
18h 24m
Zone 52, Map 3
Mirror Image
+66°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+65°00'
Kuiper 86
STF 2423
STF 2343
STF 2332 rej
+64°00'
Hussey 938
Espin 1840
Espin 126
STF 2365 rej
STF 2377 rej
+63°00'
STF 2357
STF 2334 rej
+62°00'
STF 2440
+61°00'
Espin 2669
STF 2403
h2836
NGC 6701
Milburn 139
+60°00'
Espin 2666
STF 2398
+59°00'
LDS 1466
ο Omicron Dra
Milburn 1079
STF 2410
39 Dra
18h 24m
18h 32m
18h 40m
18h 48m
18h 56m
19h 04m
Zone 52, Map 4
Normal Image
+61°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2403
h2836
NGC 6701
+60°00'
Milburn 139
STF 2398
+59°00'
LDS 1466
Milburn 1079
STF 2410
+58°00'
Omicron Draο
STF 2438
h2848
+57°00'
Stein 2405
Argelander 33
+56°00'
STF 2433
+54°00'
+55°00'
46 Dra
Bemporad 37
19h 04m
18h 56m
18h 48m
18h 40m
18h 32m
Zone 52, Map 4
Mirror Image
+61°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2403
h2836
NGC 6701
Milburn 139
+60°00'
Espin 2666
STF 2398
+59°00'
LDS 1466
ο Omicron Dra
Milburn 1079
STF 2410
+58°00'
39 Dra
STF 2438
h2848
+57°00'
Stein 2405
+56°00'
STF 2433
+54°00'
+55°00'
46 Dra
18h 32m
18h 40m
18h 48m
18h 56m
19h 04m
Zone 52
Index
Flamsteed
M
39 Dra....................................................... 11
46 Dra....................................................... 21
Milburn 1079........................................... 21
B
NGC 6701................................................ 19
Bur 1274 .................................................. 10
O
C
Comstock 4 ................................................ 2
Omicron Dra............................................ 22
OS 586 ....................................................... 5
E
S
Espin 126 ................................................. 17
Espin 1840 ............................................... 15
Espin 186 ................................................... 5
Espin 2666 ................................................. 4
Espin 2669 ............................................... 16
Espin 79 ..................................................... 7
STF 2278 ................................................... 8
STF 2300 rej.............................................. 9
STF 2332 rej.............................................. 6
STF 2334 rej.............................................. 4
STF 2357 ................................................. 13
STF 2365 rej............................................ 13
STF 2377 rej............................................ 14
STF 2398 ................................................. 20
STF 2403 ................................................. 18
STF 2410 ................................................. 24
STF 2433 ................................................. 23
STF 2438 ................................................. 25
STF 2440 ................................................. 15
N
F
Fox 81 ........................................................ 3
H
h2836 ........................................................ 16
h2848 ........................................................ 23
Hussey 926 ................................................ 2
Hussey 938 .............................................. 18
-1-
Zone 52
Zone 52, Map 1
Double Stars
Easy
Hussey 926
Other name(s): ADS 11143
Rating: 3 E
Position: 1810+6414
A
B
Magnitude
9.88
9.93
Separation PA
—
—
4.0 =
265 -
Year
—
1992
Spectra
F0
Colors
W
W
Notes:
1895: 3.3 @ 257. 14 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.6 inches.
Separation: AB = 1,373 feet.
Distance (LY): 42
Total luminosity (Suns): 0.03
Comstock 4
Other name(s): HD 168267; SAO 17831
Rating: 5 E
Position: 1814+6445
A
B
Magnitude
7.30
9.43
Separation PA
—
—
299 =
281 =
-2-
Year
—
1924
Spectra
K2
Colors
yW
W
Zone 52
Notes:
1903: 299 @ 281. 2 measurements.
Observations:
C11 at 115x. Nice field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.6 inches.
Separation: AB = 490 miles.
Distance (LY): 1,050
Total luminosity (Suns): 118
Fox 81
Other name(s): ADS 11263
Rating: 5 E
Position: 1818+6050
A
B
C
BC
Magnitude
11.13
10.60
11.50
Separation PA
—
—
34.0 +
86 +?
15.4 =
203 =
Year
—
1988
1988
Notes:
AB 1921: 32.1 @ 262. 2 measurements. Quadrant reversal?
BC 1921: 15.4 @ 203. 2 measurements.
Observations:
C8 at 104x.
-3-
Spectra
F5 V
Colors
W
W
W
Zone 52
STF 2334 rej
Other name(s): SAO 17884
Rating: 3 E
Position: 1826+6255
A
B
Magnitude
9.41
10.93
Separation PA
—
—
16.4 +
202 -
Year
—
1991
Spectra
K0
Colors
Y
W?
Notes:
1899: 13.8 @ 205. 8 measurements.
Observations:
C8 at 104x. This pair is the NE vertex of a nice 9m triangle of stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 26.4 inches.
Separation: AB = 1.94 miles.
Distance (LY): 76
Total luminosity (Suns): 0.11
Espin 2666
Other name(s): HD 170508; SAO 17882
Rating: 4 E
Position: 1826+6029
A
B
Magnitude
8.40
9.73
Separation PA
—
—
45.3 270 -
Year
—
1991
Spectra
F2
Colors
W
V?
Notes:
1898: 46.4 @ 273. 9 measurements.
The stars have different proper motions and Hipparcos gives different distances (228
and 166 light years).
Observations:
C8 at 104x. Bright field.
-4-
Zone 52
Moderate
OS 586
Other name(s): HD 168151; SAO 17828
Rating: 5 M
Position: 1814+6424
A
B
Magnitude
5.03
9.00
Separation PA
—
—
28.4 +
264 -
Year
—
1881
Spectra
F5 V
Colors
W
?
Notes:
1857: 27.3 @ 265. 2 measurements.
Observations:
C11 at 115x. B looks more like 10.5m.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches.
Separation: AB = 3.41 miles.
Distance (LY): 77
Total luminosity (Suns): 4.75
Espin 186
Other name(s): ADS 11243; HD 168618; SAO 17839
Rating: 5 M
Position: 1816+6404
A
B
Magnitude
8.18
12.00
Separation PA
—
—
7.6 328 -
Notes:
1903: 7.8 @ 331. 5 measurements.
Observations:
C11 at 115x.
-5-
Year
—
1991
Spectra
A2
Colors
W
?
Zone 52
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.14 inches.
Separation: AB = 9.13 miles.
Distance (LY): 770
Total luminosity (Suns): 26
Difficult
STF 2332 rej
Other name(s): SAO 17881
Rating: 5 D
Position: 1825+6455
A
B
Magnitude
8.65
11.20
Separation PA
—
—
10.6 261 -
Year
—
1921
Notes:
1901: 11.2 @ 263. 2 measurements.
Observations:
C11 at 193x. B looks more like 12.5m.
Distance (LY): 192
Total luminosity (Suns): 1.09
-6-
Spectra
Colors
W
?
Zone 52
Zone 52, Map 2
Double Stars
Easy
Espin 79
Other name(s): ADS 11027; HD 238800
Rating: 5 E
Position: 1803+5552
A
B
C
Magnitude
10.67
12.60
10.61
Separation
—
7.0 +
24.6 =
PA
—
59 93 -
Year
—
1994
1991
Notes:
AB 1901: 5.6 @ 81. 7 measurements.
AC 1901: 24.6 @ 94. 13 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.1 inches.
Separation: AB = 2,534 feet; AC = 1.68 miles.
Distance (LY): 44
Total luminosity (Suns): 0.02
-7-
Spectra
F5
Colors
W
No
W?
Zone 52
STF 2278
Other name(s): ADS 11035; HD 165502; SAO 30715
Rating: 1 E
Position: 1803+5626
A
B
C
D
Magnitude
7.62
7.79
8.16
9.70
Separation
—
36.2 33.9 197.7 -
PA
—
28 +
37 +
189 -
Year
—
1995
1995
1995
Spectra
A5 V
A3
Colors
B
?
W
W
Notes:
AB 1831: 38.9 @ 23. 61 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. However, the stars exhibit common proper
motion.
AC 1888: 35.5 @ 34. 18 measurements.
AD 1880: 200.8 @ 191. 4 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.50 inches; B = 7.30 inches.
Separation: AB = 23.8 miles; AC = 22.3 miles; AD = 130 miles.
Distance (LY): 422
Total luminosity (Suns): 43
See sketch, next page.
-8-
Zone 52
Σ2278
Double star; B, W; 7.6 /7.8; 36” @ 28
Observed with C8 on 7/6/95
Magnification: 104x
STF 2300 rej
Rating: 4 E
Other name(s): A 239 (C); ADS 11129; HD 238823; SAO 30778
Position: 1809+5945
A
B
C
D
BC
Magnitude
9.20
10.30
12.60
9.70
Separation PA
—
—
16.0 40 +
24.7 3.7 +!
88 +
189 +
-9-
Year
—
1957
1918
1931
Spectra
A2
Colors
W
B
W
No
Zone 52
Notes:
AB 1901: 17.6 @ 39. 9 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. The stars have a small difference in proper
motion.
BC 1901: 1.5 @ 180. 5 measurements.
AD 1901: 24.9 @ 85. 5 measurements.
Observations:
C8 at 104x. Faint but rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.60 inches.
Separation: AB = 11.5 miles; AD = 17.7 miles; BC = 2.65 miles.
Distance (LY): 459
Total luminosity (Suns): 4
Bur 1274
Other name(s): ADS 11213; HD 168092; SAO 30836
Rating: 5 E
Position: 1815+5635
A
B
C
D
BC
BD
Magnitude
6.66
10.23
10.60
10.40
Separation PA
—
—
92.9 239 =
0.8 6.0
146 186
Year
—
1984
1976
1878
Notes:
1878: 96.0 @ 239. 11 measurements.
BC 1892: 0.9 @ 147. 6 measurements.
BD 1 measurement.
Star A is a spectroscopic binary with a period of 2.0476 days.
- 10 -
Spectra
F1 V
Colors
W
?
No
No
Zone 52
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.70 inches.
Separation: AB = 50.3 miles; BC = 2,287 feet; BD = 3.25 miles.
Distance (LY): 347
Total luminosity (Suns): 27
39 Dra
Rating: 2 E
Other name(s): STF 2323; ADS 11336; HD 170073; SAO 30949
Position: 1824+5848
A
B
C
D
E
F
G
Magnitude
4.98
7.98
7.30
10.80
11.10
14.10
14.10
Separation
—
3.7 +
88.6 197.9 50.5
36.1
41.3
PA
—
349 19 67 +
80
255
86
Year
—
1998
1994
1910
1910
1918
1918
Spectra
A1 V
F5 V
Colors
W
V
O
?
W?
No
No
Notes:
AB 1833: 3.1 @ 6. 85 measurements. Star A is a double-lined spectroscopic binary.
AC 1834 89 @ 22. 41 measurements. C is physical and a spectroscopic binary
(period of 2.71 days) and shares common proper motion with A.
AD 1880: 198.0 @ 66. 2 measurements.
AE, AF, AG all 1 measurement.
Observations:
C8 at 206x. There is a neat and small triangle of 9m stars 15 min SE. Webb saw
them as Y, B, W, and W.
- 11 -
Zone 52
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.70 inches.
Separation: AB = 1.08 miles; AC = 26.0 miles; AD = 58.1 miles; AE = 14.8
miles; AF = 10.6 miles; AG = 12.1 miles.
Distance (LY): 188
Total luminosity (Suns): 36.1
Zone 52, Map 3
Double Stars
Easy
STF 2357
Other name(s): ADS 11464
Rating: 3 E
Position: 1833+6343
A
B
Magnitude
8.77
9.40
Separation PA
—
—
4.6 +
271 =
Year
—
1998
Notes:
1832: 4.5 @ 271. 17 measurements.
Observations:
C8 at 104x. Very nice; too bad it is not brighter!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.4 inches.
Separation: AB = 2.31 miles.
Distance (LY): 322
Total luminosity (Suns): 3.93
- 12 -
Spectra
K0
Colors
Y
B
Zone 52
STF 2365 rej
Other name(s): ADS 11503; HD 172323; SAO 17936
Rating: 4 E
Position: 1835+6341
A
B
Magnitude
8.10
10.20
Separation PA
—
—
20.0 +
23 -
Year
—
1991
Spectra
F9 V
Colors
Y
bW
Notes:
1898: 19.9 @ 26. 13 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 31.5 inches.
Separation: AB = 5.43 miles.
Distance (LY): 174
Total luminosity (Suns): 1.6
STF 2377 rej
Other name(s): ADS 11559; HD 172923; SAO 17963
Rating: 3 E
Position: 1838+6332
A
B
Magnitude
6.85
9.83
Separation PA
—
—
16.9 +
339 =
Year
—
1995
Spectra
K0 III
Colors
Y
B
Notes:
1900: 16.6 @ 339. 12 measurements.
Hipparcos/Tycho data show different distances for these stars; they may be optical.
However, the stars exhibit common proper motion.
Observations:
C8 at 104x.
- 13 -
Zone 52
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 16.4 miles.
Distance (LY): 620
Total luminosity (Suns): 54
Espin 1840
Other name(s): ADS 11684; SAO 18008
Rating: 4 E
Position: 1846+6404
A
B
Magnitude
9.69
11.26
Separation PA
—
—
8.9 +
216 -
Year
—
1991
Spectra
A2
Colors
W
W
Notes:
1898: 8.3 @ 223. 7 measurements.
Observations:
C11 at 115x.
STF 2440
Other name(s): ADS 11901; HD 176668; SAO 18082
Rating: 3 E
Position: 1857+6223
A
B
C
Magnitude
6.50
9.55
10.50
Separation
—
17.3 +
160.3 +
PA
—
122 61 -
Year
—
1991
1908
Spectra
G5 III
G8
Colors
W
dB
?
Notes:
AB 1832: 16.6 @ 123. 20 measurements. The stars show a similar, but small, proper
motion.
AC 1880: 160.0 @ 62. 2 measurements.
- 14 -
Zone 52
Observations:
C8 at 104x. Webb saw them as Y and B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39.0 inches; B = 27.1 inches.
Separation: AB = 8.23 miles; AC = 76.3 miles.
Distance (LY): 305
Total luminosity (Suns): 20.46
Moderate
h2836
Other name(s): HD 172825; SAO 17961
Rating: 5 M
Position: 1838+6043
A
B
C
D
Magnitude
6.65
11.00
12.84
8.90
Separation
—
33.4 56.3 +
155.8
PA
—
317 253 313
Year
—
1982
1982
1982
Spectra
F2
Notes:
AB 1905: 36.9 @ 324. 2 measurements.
AC 1905: 54.7 @ 259. 2 measurements.
AD 1 measurement.
Observations:
C8 at 104x. Use averted vision to glimpse the companions.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.6 inches.
Separation: AB = 18.1 miles; AC = 30.6 miles; AD = 84.6 miles.
Distance (LY): 348
Total luminosity (Suns): 22
- 15 -
Colors
W
W
W
No
Zone 52
Espin 2669
Other name(s): SAO 18068
Rating: 4 M
Position: 1855+6143
A
B
Magnitude
9.63
10.60
Separation PA
—
—
11.3 +
166 +
Year
—
1920
Spectra
G5
Colors
W
bW?
Notes:
1901: 11.1 @ 165. 2 measurements.
Observations:
C11 at 115x. B looks more like 12.0m.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.3 inches.
Separation: AB = 18.0 miles.
Distance (LY): 1,020
Total luminosity (Suns): 16
Espin 126
Other name(s): ADS 11575; HD 173108; SAO 17965
Rating: 5 M
Position: 1839+6347
A
B
C
BC
Magnitude
8.33
11.53
12.70
Separation PA
—
—
74.2 +
52 =
4.4 -
27 +
Year
—
1985
1921
Spectra
A3
Colors
W
?
No
Notes:
AB 1898: 73.1 @ 52. 6 measurements.
BC 1898: 4.8 @ 23. 6 measurements.
May be optical because Hipparcos gives different distances (490 and 43 light years).
Observations:
C8 at 104x. Use averted vision to get B.
- 16 -
Zone 52
Difficult
STF 2403
Other name(s): ADS 11661; HD 173949
Rating: 5 D
Position: 1844+6103
A
B
Magnitude
6.02
8.08
Separation PA
—
—
1.1 +
281 +
Year
—
1997
Spectra
G8 III
Colors
Y
W
Notes:
1832: 1.9 @ 259. 38 measurements.
Observations:
C8 at 697x. (s2, t3) Webb saw them as Y and B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 43.5 inches.
Separation: AB = 3,274 feet.
Distance (LY): 364
Total luminosity (Suns): 47
Hussey 938
Other name(s): ADS 11866; SAO 18070
Rating: 4 D
Position: 1855+6432
A
B
Magnitude
9.81
10.54
Separation PA
—
—
1.8 =
214 -
Notes:
1905: 1.8 @ 217. 12 measurements.
Observations:
C11 at 193x.
- 17 -
Year
—
1991
Spectra
F5
Colors
W
W
Zone 52
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.4 inches.
Separation: AB = 2.55 miles.
Distance (LY): 910
Total luminosity (Suns): 11.6
Deep Sky Objects
Difficult
NGC 6701
Other Names: UGC 11348
Rating: 5 D
Position: 1843+6039
Type : Gal
Surface brightness: 12.7
Class: (R')SB(s)a
Dimensions: 1.5' x 1.3'
Magnitude : 12.1
PA: 25
Observations:
C11 at 140x. It is small and faint, and lies about 60 sec N of a faint (~10 m) field star.
Two very faint (~14 m) field stars are superimposed, or else one is a star and the other the
nucleus. Fairly uniform light level across the surface.
Distance: 180,000,000 light years
Radial velocity (km/sec): +3,965
Luminosity: 36,700,000,000 Suns
- 18 -
Zone 52
Zone 52, Map 4
Double Stars
Easy
STF 2398
Rating: 2 E
Other name(s): Popovic 1224 (D); LDS 1466; ADS 11632; HD 173739
Position: 1843+5938
A
B
C
D
Magnitude
8.94
9.69
12.80
11.00
Separation
—
12.9 +
180.4 +!!
91.5
PA
—
173 +!
161 -!!
100
Year
—
1997
1983
1988
Spectra
K5 V
K5 V
Colors
O
O
?
No
Notes:
AB 1832: 12.4 @ 134. Over 100 measurements. The orbital period is 453.0 years
(Heintz, 1968) with semi-major axis of 13.88" and direct motion.
AC 1904: 50.9 @ 243. 17 measurements.
AD 1 measurement.
The A star is 0.0027 times the Sun's brightness and 0.29 times its mass, where the B
star's vital numbers are 0.0013 and 0.25 respectively.
Observations:
C8 at 206x. It lies midway between an E-W pair of 7m stars.
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 54.3 inches; B = 37.8 inches.
Separation: AB = 1,267 feet; AC = 3.37 miles; AD = 1.71 miles.
Distance (LY): 12
Total luminosity (Suns): 0.004083
- 19 -
Zone 52
46 Dra
Other name(s): HD 173524; SAO 31119; Herschel H VI 37
Rating: 4 E
Position: 1843+5532
A
B
Magnitude
5.04
10.70
Separation PA
—
—
146.5 160 =
Year
—
1910
Spectra
B9.5p
Colors
W
B
Notes:
1879: 146.8 @ 160. 3 measurements. Star A is a spectroscopic binary with a period
of 9.8107 days.
This star is a member of the Pleiades group.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.00 inches.
Separation: AB = 83.2 miles; Aa = 28.9 miles.
Distance (LY): 364
Total luminosity (Suns): 97
Milburn 1079
Rating: 5 E
Position: 1846+5923
A
B
C
BC
Magnitude
9.64
10.46
12.30
Separation PA
—
—
34.6 203 +
8.8
279
Notes:
AB 1902: 36.3 @ 202. 4 measurements.
BC 1 measurement.
- 20 -
Year
—
1984
1918
Spectra
Colors
O
W
No
Zone 52
Observations:
C8 at 104x. A large triangle of 7m stars dominates the field. This pair is about
midway along the SW leg. Within the triangle proper is a dense, almost grainy field of
very faint stars.
Omicron Dra
Other name(s): 47 Dra; STF 2420; ADS 11779; HD 175306
Rating: 2 E
Position: 1851+5923
A
B
C
Magnitude
4.66
7.90
11.50
Separation
—
36.1 +
139 +!!
PA
—
320 326 -
Year
—
1992
Spectra
G7 III-IV
Colors
Y!
B
W?
Notes:
A is a spectroscopic binary and slightly variable.
AB 1832: 30.3 @ 347. 62 measurements.
AC 1880: 107.8 @ 327. 3 measurements.
Observations:
C8 at 104x. C as very difficult and only seenwith averted vision. Great colors!
Webb saw Y! and W; Franks yO and B or Y!! and B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches.
Separation: AB = 18.1 miles; AC = 69.8 miles.
Distance (LY): 322
Total luminosity (Suns): 117
- 21 -
Zone 52
STF 2433
Other name(s): ADS 11883; HD 176409; SAO 31286
Rating: 4 E
Position: 1857+5645
A
B
C
Magnitude
7.11
10.20
11.90
Separation
—
7.4 =
36.3 +
PA
—
123 128 +
Year
—
1991
1919
Spectra
F2 V
Colors
W
?
?
Notes:
AB 1834: 7.4 @ 128. 12 measurements.
AC 1905: 36.0 @ 126. 2 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.10 inches.
Separation: AB = 5.34 miles; AC = 26.2 miles.
Distance (LY): 463
Total luminosity (Suns): 25.29
Moderate
h2848
Other name(s): ADS 11861
Rating: 5 M
Position: 1855+5750
A
B
C
Magnitude
10.34
12.00
12.13
Separation
—
6.7 33.0
PA
—
292 =
55
- 22 -
Year
—
1908
1908
Spectra
Colors
W
?
?
Zone 52
Notes:
AB 1903: 6.4 @ 292. 5 measurements.
AC 1 measurement.
Observations:
C11 at 115x.
Distance (LY): 242
Total luminosity (Suns): 0.47
Difficult
STF 2410
Other name(s): ADS 11697; HD 174455
Rating: 5 D
Position: 1847+5920
A
B
Magnitude
7.94
8.27
Separation PA
—
—
1.7 +
86 -
Year
—
1997
Notes:
1833: 1.5 @ 98. 43 measurements.
Observations:
C8 at 697x. (s2, t3)
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.9 inches.
Separation: AB = 1.19 miles.
Distance (LY): 451
Total luminosity (Suns): 18
- 23 -
Spectra
F8
Colors
W
W
Zone 52
STF 2438
Other name(s): ADS 11897; HD 176560; SAO 31292
Rating: 4 D
Position: 1857+5813
A
B
Magnitude
7.09
7.43
Separation PA
—
—
0.8 +
3+
Year
—
1999
Spectra
A2 IV
A3 V
Colors
Y
Y
Notes:
1832: 0.7 @ 341. Over 100 measurements. The orbital period is 259.07 years
(Jastrzebski, 1959), with semi-major axis of 0.60" and retrograde motion.
Observations:
C8 at 516x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches.
Separation: AB = 2,482 feet.
Distance (LY): 380
Total luminosity (Suns): 41
- 24 -
Zone 52
Zone 52 Mini-Catalog
Double Stars
Star
Designation
Position
Rating
Map
STF 2278
1803+5626
1E
2
39 Dra
1824+5848
2E
2
STF 2398
1843+5938
2E
4
Omicron Dra
1851+5923
2E
4
Hussey 926
1810+6414
3E
1
STF 2334 rej
1826+6255
3E
1
STF 2357
1833+6343
3E
3
STF 2377 rej
1838+6332
3E
3
STF 2440
1857+6223
3E
3
STF 2300 rej
1809+5945
4E
2
Espin 2666
1826+6029
4E
1
STF 2365 rej
1835+6341
4E
3
46 Dra
1843+5532
4E
4
Espin 1840
1846+6404
4E
3
STF 2433
1857+5645
4E
4
Espin 79
1803+5552
5E
2
Component
A
B
C
D
A
B
C
D
E
F
G
A
B
C
D
A
B
C
A
B
A
B
A
B
A
B
A
B
C
A
B
C
D
BC
A
B
A
B
A
B
A
B
A
B
C
A
B
C
- 25 -
Specifications
Mag
Sep from A
7.62
—
7.79
36.2 8.16
33.9 9.70
197.7 4.98
—
7.98
3.7 +
7.30
88.6 10.80
197.9 11.10
50.5
14.10
36.1
14.10
41.3
8.94
—
9.69
12.9 +
12.80
180.4 +!!
11.00
91.5
4.66
—
7.90
36.1 +
11.50
139 +!!
9.88
—
9.93
4.0 =
9.41
—
10.93
16.4 +
8.77
—
9.40
4.6 +
6.85
—
9.83
16.9 +
6.50
—
9.55
17.3 +
10.50
160.3 +
9.20
—
10.30
16.0 12.60
24.7 9.70
3.7 +!
8.40
—
9.73
45.3 8.10
—
10.20
20.0 +
5.04
—
10.70
146.5 9.69
—
11.26
8.9 +
7.11
—
10.20
7.4 =
11.90
36.3 +
10.67
—
12.60
7.0 +
10.61
24.6 =
PA from A
—
28 +
33.9 197.7 —
349 88.6 197.9 80
255
86
—
173 +!
180.4 +!!
91.5
—
320 139 +!!
—
265 —
202 —
271 =
—
339 =
—
122 160.3 +
—
40 +
24.7 189 +
—
270 —
23 —
160 =
—
216 —
123 36.3 +
—
59 24.6 =
Zone 52
Star
Designation
Position
Rating
Map
Comstock 4
1814+6445
5E
1
Bur 1274
1815+5635
5E
2
Fox 81
1818+6050
5E
1
Milburn 1079
1846+5923
5E
4
Espin 2669
1855+6143
4M
3
OS 586
1814+6424
5M
1
Espin 186
1816+6404
5M
1
h2836
1838+6043
5M
3
Espin 126
1839+6347
5M
3
h2848
1855+5750
5M
4
Hussey 938
1855+6432
4D
3
STF 2438
1857+5813
4D
4
STF 2332 rej
1825+6455
5D
1
STF 2403
1844+6103
5D
3
STF 2410
1847+5920
5D
4
Component
A
B
A
B
C
D
BC
BD
A
B
C
CD
A
B
C
BC
A
B
A
B
A
B
A
B
C
D
A
B
C
BC
A
B
C
A
B
A
B
A
B
A
B
A
B
Specifications
Mag
Sep from A
7.30
—
9.43
299 =
6.66
—
10.23
92.9 –
10.60
10.40
0.8 –
6.0
11.13
—
10.60
34.0 +
11.50
15.4 =
9.64
—
10.46
34.6 12.30
8.8
9.63
—
10.60
11.3 +
5.03
—
9.00
28.4 +
8.18
—
12.00
7.6 6.65
—
11.00
33.4 12.84
56.3 +
8.90
155.8
8.33
—
11.53
74.2 +
12.70
4.4 10.34
—
12.00
6.7 12.13
33.0
9.81
—
10.54
1.8 =
7.09
—
7.43
0.8 +
8.65
—
11.20
10.6 6.02
—
8.08
1.1 +
7.94
—
8.27
1.7 +
PA from A
—
281 =
—
239 =
146 –
186
—
86 +?
203 =
—
203 +
279
—
166 +
—
264 —
328 —
317 56.3 +
155.8
—
52 =
27 +
—
292 =
33.0
—
214 —
3+
—
261 —
281 +
—
86 -
Deep Sky Objects
Object
NGC 6701
Position
1843+6039
Rating
5D
Map
3
Type
Gal ((R')SB(s)a)
- 26 -
Specifications
Surface
Mag
Br
12.1
12.7
Population