Zone 78, Master Map
Normal View
+54°00'
Zone Master, Normal View, 10 deg FOV
f
c
+52°00'
i
g
j
+50°00'
ψ
d
+48°00'
ω2
ω1
h
e
+46°00'
k
δ
α
North American Nebula
ξ
21h 12m
21h 00m
Deneb
Pelican Nebula
20h 48m
20h 36m
20h 24m
20h 12m
20h 00m
19h 48m
Zone 78, Map 1
Normal Image
+55°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h1516
Bur 426
+54°00'
Stein 2478
Stein 2497
Hough 455
Franks 9
Argelander 35
+53°00'
STF 2681
Engelmann 70
STF 2658
OS 404 rej
ψ
Psi Cyg
+52°00'
Espin 2692
STF 2645
20h 24m
20h 18m
20h 12m
20h 06m
20h 00m
19h 54m
Zone 78, Map 1
Mirror Image
+55°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h1516
Bur 426
Stein 2478
Stein 2497
+54°00'
Hough 455
Argelander 35
Engelmann 70
ψ
+53°00'
STF 2681
STF 2658
OS 404 rej
Psi Cyg
+52°00'
Espin 2692
STF 2645
19h 54m
20h 00m
20h 06m
20h 12m
20h 18m
20h 24m
Zone 78, Map 2
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2645
AC 17
+51°00'
Espin 800
+50°00'
Engelmann 73
26 Cyg
STF 2648
Argelander 87
Espin 2693
h1481
+49°00'
Espin 502
Espin 2694
STF 2619
20h 24m
20h 18m
20h 12m
20h 06m
20h 00m
19h 54m
Zone 78, Map 2
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2645
AC 17
+51°00'
Espin 800
+50°00'
Engelmann 73
26 Cyg
STF 2648
Argelander 87
Espin 2693
+49°00'
h1481
Espin 502
STF 2619
19h 54m
20h 00m
20h 06m
20h 12m
20h 18m
20h 24m
Zone 78, Map 3
Normal Image
+48°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Ball 49
h1510
NICE
ASTERISM
Omicron 2 Cyg
+47°00'
STF 2611
Hipparcos 2861
Omicron 1 Cyg
h1513
NGC 6884
+46°00'
A 719
h1463
STF 2667
+45°00'
Espin 499
Espin 1329
OS 393
OS 391 rej
20h 24m
20h 18m
20h 12m
20h 06m
20h 00m
Zone 78, Map 3
Mirror Image
+48°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Ball 49
h1510
NICE
ASTERISM
Omicron 2 Cyg
+47°00'
STF 2611
Hipparcos 2861
Omicron 1 Cyg
h1513
NGC 6884
+46°00'
A 719
h1463
STF 2667
+45°00'
Espin 499
Espin 1329
OS 393
20h 00m
20h 06m
20h 12m
20h 18m
20h 24m
Zone 78, Map 4
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Cepheus
STF 2671
+55°00'
h1562
h1516
Espin 991
Hough 455
Holden 41
Franks 9
+54°00'
STF 2693
A 1681
+53°00'
STF 2681
Espin 2698
OS 404 rej
Espin 2692
Espin 995
20h 42m
20h 36m
20h 30m
20h 24m
20h 18m
Zone 78, Map 4
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Cepheus
STF 2671
+55°00'
h1562
h1516
Espin 991
Hough 455
Holden 41
Franks 9
+54°00'
STF 2693
A 1681
STF 2658
Espin 2698
OS 404 rej
Espin 2692
20h 18m
Espin 995
20h 24m
20h 30m
20h 36m
20h 42m
+53°00'
STF 2681
Zone 78, Map 5
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Bur 365
+51°00'
Espin 800
Espin 88
h1524
51 Cyg
Holden 39
+50°00'
Engelmann 73
Espin 2696
Argelander 39
ω2
South 755
+49°00'
Espin 2693
Omega 2 Cyg
Omega 1 Cygω1
Espin 2694
h1558
Espin 89
20h 42m
20h 36m
20h 30m
20h 24m
20h 18m
Zone 78, Map 5
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+51°00'
Espin 800
Espin 88
h1524
Holden 39
51 Cyg
+50°00'
Engelmann 73
Espin 2696
Espin 2693
ω2
South 755
ω1
+49°00'
Argelander 39
Espin 502
Omega 2 Cyg
Omega 1 Cyg
Espin 2694
h1558
Espin 89
20h 18m
20h 24m
20h 30m
20h 36m
20h 42m
Zone 78, Map 6
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
ω1
Espin 2694
Espin 89
STF 2707
Ball 49
+48°00'
h1558
h1510
+47°00'
Espin 665
OSS 208
Bur 1489
+46°00'
h1513
OS 411
STF 2667
α
Deneb
Alpha Cyg
Espin 2699
20h 42m
20h 36m
20h 30m
20h 24m
20h 18m
Zone 78, Map 6
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
ω1
Omega 1 Cyg
Espin 2694
+48°00'
h1558
Espin 89
STF 2707
Ball 49
h1510
+47°00'
Espin 665
OSS 208
Omicron 1 Cyg
Bur 1489
+46°00'
h1513
OS 411
STF 2667
Alpha Cygα
20h 18m
20h 24m
20h 30m
20h 36m
Deneb
20h 42m
Zone 78, Map 7
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+55°00'
h1562
h1587
Espin 991
+54°00'
NGC 7008
h1606
Argelander 41
Espin 2704
Holden 41
A 1681
+53°00'
Bur 680
Espin 2698
+52°00'
STF 2757
Espin 995
STF 2732
Bur 365
21h 00m
20h 54m
20h 48m
20h 42m
20h 36m
20h 30m
Zone 78, Map 7
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+55°00'
h1562
h1587
Espin 991
+54°00'
NGC 7008
h1606
Argelander 41
Holden 41
+53°00'
A 1681
+52°00'
Espin 2698
Espin 995
STF 2732
Bur 365
20h 30m
20h 36m
20h 42m
20h 48m
20h 54m
21h 00m
Zone 78, Map 8
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+52°00'
STF 2757
Espin 995
STF 2732
Bur 365
Espin 88
Bur 366
STF 2741
Holden 39
51 Cyg
+50°00'
Bur 68
+51°00'
Bur 155
Espin 94
+49°00'
Argelander 39
OS 425
h1558
21h 06m
21h 00m
20h 54m
20h 48m
20h 42m
20h 36m
Zone 78, Map 8
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+52°00'
STF 2757
Espin 995
STF 2732
Bur 365
+51°00'
Bur 155
Espin 88
Bur 366
Holden 39
STF 2741
51 Cyg
+50°00'
Bur 68
Espin 94
+49°00'
Argelander 39
OS 425
20h 36m
h1558
20h 42m
20h 48m
20h 54m
21h 00m
21h 06m
Zone 78, Map 9
Normal Image
Espin 89
STF 2707
+48°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Bur 158
OSS 208
+47°00'
59 Cyg
NGC 6991
IC 5076
h1597
Bur 250
+46°00'
Hipparcos 3001
55 Cyg
Bark 1
Bur 1138
OS 411
Hipparcos 2979
α
Deneb
Alpha Cyg
+45°00'
Argelander 40
NGC 6989
OS 422
Espin 2699
Espin 2701
Espin 675
Collinder 428
Espin 667
NGC 6996
NGC 7000
21h 00m
NGC 6997
North American Nebula
20h 54m
Pelican Nebula
IC 5067 / 70
20h 48m
20h 42m
20h 36m
Zone 78, Map 9
Mirror Image
+48°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 89
STF 2707
Bur 158
59 Cyg
+47°00'
NGC 6991
IC 5076
h1597
OSS 208
Bur 1489
55 Cyg
Bark 1
Bur 1138
OS 411
Argelander 40
Deneb
NGC 6989
Hipparcos 2979
OS 422
+45°00'
Alpha Cygα
Espin 2699
Espin 2701
Espin 675
NGC 6996
NGC 6997
Espin 667
IC 5067 / 70
20h 36m
20h 42m
+46°00'
Bur 250
20h 48m
Pelican Nebula
20h 54m
NGC 7000 North American Nebula
21h 00m
Zone 78
Index
68 Double Stars, 1 Galactic Nebula,
1 Planetary Nebula, 3 Open Clusters
Flamsteed
26 Cyg ........................................................ 7
51 Cyg ...................................................... 40
55 Cyg ...................................................... 44
Espin 2696 ............................................... 26
Espin 2698 ............................................... 22
Espin 499 ................................................. 18
Espin 502 ................................................. 10
Espin 665 ................................................. 31
Espin 800 ................................................... 8
Espin 88 ................................................... 27
Espin 89 ................................................... 33
Espin 94 ................................................... 37
Espin 991 ................................................. 22
Espin 995 ................................................. 35
A
A 1681...................................................... 23
A 719 ........................................................ 17
AC 17 ....................................................... 13
Alpha Cyg................................................ 46
Argelander 39.......................................... 36
Argelander 40.......................................... 43
Argelander 41.......................................... 34
F
B
Franks 9 ................................................... 21
Ball 49 ...................................................... 29
Barkanova 1 ............................................ 48
Bur 1489 .................................................. 32
Bur 155 .................................................... 41
Bur 250 .................................................... 45
Bur 365 .................................................... 38
Bur 366 .................................................... 41
Bur 426 ...................................................... 5
H
h1463 ........................................................ 18
h1481 .......................................................... 9
h1510 ........................................................ 31
h1513 ........................................................ 33
h1516 ........................................................ 20
h1524 ........................................................ 25
h1558 ........................................................ 29
h1597 ........................................................ 48
Hipparcos 2861 ....................................... 16
Hipparcos 2979 ....................................... 45
Holden 39 ................................................ 27
Holden 41 ................................................ 35
Hough 455 ................................................. 4
E
Engelmann 70 ........................................... 6
Engelmann 73 ......................................... 12
Espin 1329 ............................................... 16
Espin 2692 ................................................. 5
Espin 2693 ............................................... 10
Espin 2694 ............................................... 28
-1-
Zone 78
N
S
NGC 6884................................................ 19
NGC 6989................................................ 49
NGC 6991................................................ 49
South 755 ................................................. 26
Stein 2497 .................................................. 6
STF 2619 ................................................. 11
STF 2645 ................................................. 12
STF 2648 ................................................... 9
STF 2658 ................................................... 3
STF 2667 ................................................. 15
STF 2681 ................................................. 23
STF 2693 ................................................. 20
STF 2707 ................................................. 30
STF 2732 ................................................. 39
STF 2741 ................................................. 39
O
Omega 1 Cyg .......................................... 24
Omega 2 Cyg .......................................... 25
Omicron 1 Cyg........................................ 14
Omicron 2 Cyg........................................ 14
OS 404 rej .................................................. 3
OS 411 ..................................................... 43
OS 422 ..................................................... 46
OSS 208 ................................................... 32
-2-
Zone 78
Zone 78, Map 1
Double Stars
Easy
OS 404 rej
ADS 13616; HD 193054; SAO 32404
Rating: 2 E
Position: 2016+5230
A
B
Magnitude
7.40
9.90
Separation PA
—
—
28.7 115 +
Year
—
1991
Spectra
K5 III
Colors
Y!!
dB!!
Notes:
1843: 30.0 @ 114. 8 measurements.
Observations:
C8 at 83x. The field nearby goes suddenly dark— is there a dark nebula nearby?
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 54.3 inches.
Separation: AB = 38.1 miles.
Distance (LY): 850
Total luminosity (Suns): 66
STF 2658
ADS 13560; HD 192679; SAO 32380
Rating: 3 E
Position: 2014+5307
A
B
C
Magnitude
7.02
9.45
10.33
Separation
—
5.6 +
60.7 +!!
PA
—
105 206 -
-3-
Year
—
1994
1991
Spectra
F5 V
Colors
Y
O
V
Zone 78
Notes:
AB 1831: 5.5 @ 127. 55 measurements.
AC 1832: 32.1 @ 217. 30 measurements.
A has a 12.7m companion at 33.9 @ 312 (1913).
B has a 14.0m companion at 11.3 @ 83 (1910).
Observations:
C8 at 83x. Some observers report Y, W and B. Webb saw them as Y, B and O.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches.
Separation: AB = 1.31 miles; AC = 14.3 miles.
Distance (LY): 151
Total luminosity (Suns): 3.3
Hough 455
ADS 13610; HD 192967; SAO 32392
Rating: 3 E
Position: 2015+5409
A
B
C
D
Magnitude
7.26
9.08
13.59
10.60
Separation
—
39.7 +
32.4 +
38.1 +
PA
—
72 258 +
75 -
Year
—
1997
1925
1925
Spectra
M0
Colors
Y
?
?
?
Notes:
AB 1889: 36.7 @ 76. 6 measurements.
AC 1889: 32.3 @ 256. 6 measurements.
AD 1889: 36.7 @ 76. 5 measurements.
B has an 11.5m companion at 3.7 @ 182 (1925).
Observations:
C8 at 83x. It forms the W vertex of a large triangle composed of 6.7m SAO 32443
(NE) and 8.2m SAO 32446 (SE).
-4-
Zone 78
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 38.2 inches.
Separation: AB = 84.9 miles; AC = 69.2 miles; AD = 81.5 miles.
Distance (LY): 1,370
Total luminosity (Suns): 217
Espin 2692
HD 235175; SAO 32462
Rating: 3 E
Position: 2019+5212
A
B
Magnitude
9.44
9.44
Separation PA
—
—
24.6 =
86 -?
Year
—
1991
Spectra
K2
Colors
O
W
Notes:
1897: 24.6 @ 271. 9 measurements. Quadrant reversal?
The stars share common proper motion.
Observations:
C8 at 104x.
Bur 426
CD = Bur 427; ADS 13301
Rating: 5 E
Position: 2002+5439
A
B
C
Magnitude
8.41
9.94
8.28
Separation
—
5.8 =
162.3 -
PA
—
307 52 -
Year
—
1999
1999
Spectra
K0
F0
Colors
Y
?
W
Notes:
AB 1877: 5.8 @ 310. 13 measurements.
AC 1877: 166.2 @ 53. 7 measurements. C is shown by Hipparcos to be 990 light
years away.
C has a 10.18m companion at 3.1 @ 338 (1999).
-5-
Zone 78
Observations:
C8 at 206x. The star is the westernmost vertex of an equilateral triangle of 8.5m stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.9 inches; C = 10.6 inches.
Separation: AB = 3.88 miles; AC = 109 miles.
Distance (LY): 429
Total luminosity (Suns): 15
Engelmann 70
HD 191195; SAO 32286
Rating: 5 E
Position: 2006+5310
A
B
Magnitude
5.85
9.67
Separation PA
—
—
168.5 132 +
Year
—
1990
Spectra
F5 V
Colors
W
W
Notes:
AB 1893: 171.8 @ 123. 3 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches.
Separation: AB = 31.3 miles.
Distance (LY): 119
Total luminosity (Suns): 5.21
Moderate
Stein 2497
HD 190780; SAO 32254
Rating: 5 M
Position: 2004+5428
A
B
Magnitude
7.70
11.30
Separation PA
—
—
8.4 64 -!
-6-
Year
—
1972
Spectra
K0
Colors
Y
?
Zone 78
Notes:
1917: 10.1 @ 123. 2 measurements.
Observations:
C8 at 83x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 23.8 inches.
Separation: AB = 3.26 miles.
Distance (LY): 249
Total luminosity (Suns): 4.2
Zone 78, Map 2
Double Stars
Easy
26 Cyg
OSS 197; ADS 13278; HD 190147; SAO 49098; H V 47
Rating: 3 E
Position: 2001+5006
A
B
C
D
E
Magnitude
5.05
10.10
12.90
15.80
10.50
Separation PA
—
—
42.3 +
148 +
167.4
347
Year
—
1995
1995
1899
Spectra
K1 III
Colors
Y
O
?
No
No
Notes:
AB 1875: 41.3 @ 146. 18 measurements. The primary is an infra-red emitter. The
stars have a small difference in proper motion.
AE 1 measurement.
BC (Burnham) 1878: 9.0 @ 74. 1995: 9.0 @ 74. 4 measurements.
BD 1898: 10.1 @ 258. 1 measurement.
-7-
Zone 78
Observations:
C8 at 65x. Some observers report Y and B; Webb thought they were D and B. Very
rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 2.40 inches.
Separation: AB = 28.3 miles.
Distance (LY): 429
Total luminosity (Suns): 135
Espin 800
ADS 13732; HD 235183; SAO 32481
Rating: 3 E
Position: 2020+5115
A
B
C
Magnitude
8.90
10.30
11.51
Separation
—
30.0 +
42.50 +
PA
—
320 +
103 =
Year
—
1988
1988
Spectra
K3 III
Colors
Y
B
?
Notes:
AB 1897: 29.2 @ 313. 9 measurements. The stars have different proper motions.
AC 1899: 41.2 @ 103. 4 measurements.
There are four more very faint comes.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 51.3 inches.
Separation: AB = 11.1 miles; AC = 15.7 miles.
Distance (LY): 238
Total luminosity (Suns): 2.2
-8-
Zone 78
h1481
Rating: 4 E
Position: 2005+4924
A
B
C
Magnitude
10.44
10.39
10.36
Separation
—
18.0 +
27.5 =
PA
—
187 -?
92 +
Year
—
1987
1987
Spectra
K2 III
Colors
W
O
W
Notes:
AB 1907: 17.5 @ 8. 3 measurements. Quadrant reversal?
AC 1901: 27.5 @ 87. 6 measurements.
There are six more very faint comes (all discovered by George Abt).
Observations:
C8 at 104x. It forms a nice, tiny triangle. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 49.5 inches.
Separation: AB = 6.37 miles; AC = 9.74 miles.
Distance (LY): 227
Total luminosity (Suns): 0.9
STF 2648
ADS 13471; HD 191974; SAO 49271
Rating: 4 E
Position: 2010+4949
A
B
Magnitude
7.84
9.51
Separation PA
—
—
6.8 +
116 =
Notes:
1831: 6.2 @ 116. 16 measurements.
Observations:
C8 at 83x. Moderate field.
-9-
Year
—
1995
Spectra
F5
Colors
W
rO
Zone 78
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.9 inches.
Separation: AB = 3.20 miles.
Distance (LY): 302
Total luminosity (Suns): 6
Espin 502
ADS 13545; HD 192494; SAO 49329
Rating: 4 E
Position: 2013+4911
A
B
Magnitude
7.02
10.23
Separation PA
—
—
13.3 +
221 -
Year
—
1991
Spectra
A0 V
Colors
Y
?
Notes:
1907: 11.3 @ 223. 4 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 17.2 miles.
Distance (LY): 830
Total luminosity (Suns): 95
Espin 2693
HD 193609; SAO 49464
Rating: 4 E
Position: 2019+4938
A
B
C
BC
Magnitude
8.72
9.53
12.50
Separation PA
—
—
30.7 110 17.4
186
- 10 -
Year
—
1991
1911
Spectra
A2
Colors
W
bW
No
Zone 78
Notes:
AB 1899: 31.4 @ 111. 7 measurements.
BC 1 measurement.
Observations:
C8 at 104x.
STF 2619
ADS 13269; HD 190042; SAO 49086
Rating: 5 E
Position: 2001+4815
A
B
C
Magnitude
8.00
8.03
11.70
Separation
—
4.1 17.1 -
PA
—
240 313 +
Year
—
1998
1924
Spectra
G5
Notes:
AB 1831: 4.3 @ 245. 41 measurements.
AC 1862: 17.3 @ 299. 5 measurements.
C has a dim companion (13.20m) discovered in 1879 at 5.5 @ 184.
Observations:
C8 at 104x. This pair is framed by five 9m stars. Very rich field to the E.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.4 inches.
Separation: AB = 1.26 miles; AC = 5.25 miles.
Distance (LY): 197
Total luminosity (Suns): 2
- 11 -
Colors
Y
W
O?
Zone 78
Moderate
Engelmann 73
Bpm 243 (b, d); HD 193216; SAO 32429
Rating: 5 M
Position: 2017+5017
A
B
C
D
E.
Magnitude
8.15
10.91
10.37
11.74
10.10
Separation
—
74.4 +!
93.7 122.0 +
160.4 +
PA
—
77 -!
160 329 118 -
Year
—
1988
1998
1988
1988
Spectra
G5
Colors
Y
W
W
W
W?
Notes:
AB 1892: 54.4 @ 96. 7 measurements.
AC 1892: 110.0 @ 176. 6 measurements.
AD 1892: 117.7 @ 331. 7 measurements.
AE 1892: 155.7 @ 131. 7 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.6 inches.
Separation: AB = 11.7 miles; AC = 14.7 miles; AD = 19.2 miles; AE = 25.2
miles.
Distance (LY): 101
Total luminosity (Suns): 0.573
Difficult
STF 2645
ADS 13447; HD 191807
Rating: 4 D
Position: 2010+5140
A
B
Magnitude
7.99
8.49
Separation PA
—
—
1.6 +
138 +
- 12 -
Year
—
1998
Spectra
A0 V
Colors
W
Y
Zone 78
Notes:
1831: 1.5 @ 137. 32 measurements.
Observations:
C8 at 280x.
Distance (LY): 1,600?
Total luminosity (Suns): 208
AC 17
ADS 13535; HD 192439; SAO 32354
Rating: 5 D
Position: 2012+5128
A
B
C
D
E
Magnitude
6.01
10.34
13.00
12.55
??
Separation
—
4.3 +
83.5 +
74.0 130.7
PA
—
82 +
8=
81 =
149
Year
—
1991
1922
1922
Spectra
K1 III
Colors
Y
?
No
?
No
Notes:
AB 1859: 3.9 @ 80. 11 measurements.
AC 1913: 83.2 @ 8. 2 measurements.
AD 1913: 74.3 @ 81. 2 measurements.
AE 1 measurement.
Observations:
C8 at 206x. Star B is very difficult.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 2.40 inches.
Separation: AB = 2.76 miles; AC = 53.6 miles; AD = 47.5 miles; AE = 84.0
miles.
Distance (LY): 412
Total luminosity (Suns): 54.413
- 13 -
Zone 78
Zone 78, Map 3
Double Stars
Easy
Omicron 1 Cyg
Rating: 3 E
31 Cyg; V695 Cyg; SI 50 rej; ADS 13554; HD 192577; SAO 49337
Astronomical League Program: Double Star Club
Position: 2014+4644
A
B
Magnitude
3.80
7.01
Separation PA
—
—
107
173
Year
—
1926
Spectra
K1 II
B9 V
Colors
Y
B
Notes:
This pair is an eclipsing variable (10.42 year orbit), similar to 32 Cygni. The primary
has a gassy corona that extends out to 350 times the Sun's diameter and an infra-red
source. The B star is five times as big as the Sun. The stars are probably about 13 AU
apart.
The 5.0m A3 star at 338" (pa 323) is 30 Cygni and is an optical companion.
Hipparcos/Tycho mission data show different distances for these stars (1,30 and 1,720
light years); they may be optical.
Observations:
C8 at 83x. Rich field.
Omicron 2 Cyg
32 Cyg; V1488 Cyg; South 743 HD 192909; SAO 49385
Rating: 3 E
Position: 2015+4743
A
B
Magnitude
3.96
8.49
Separation PA
—
—
208.9 =
175 =
Notes:
1824: 208.9 @ 175. 3 measurements.
- 14 -
Year
—
1902
Spectra
K3 II
B3 V
Colors
dY!!
B!
Zone 78
May be optical because Hipparcos gives different distances (1,110 and 1,550 light
years). Different proper motions.
Star A is an eclipsing spectroscopic binary and is 200 times as big as the Sun and an
infra-red source. It has a deep, extensive atmosphere, the presence of which shows up
just before and after the small companion passes behind the larger primary as the light
from the companion shows a preliminary drop before the maximum drop. The companion, a, orbits A at 5.9 AU and is a normal A star five times as large as the Sun. The
orbital period is 3.15 years.
Observations:
C8 at 104x. Webb saw them as Y!, B and B. The rich field has a dense N-S "bar".
There is a nice little asterism of about 8 stars centered 1.5 deg E at 2006+4733.
STF 2667
ADS 13655; HD 193267; SAO 49431
Rating: 3 E
Position: 2017+4538
A
B
Magnitude
8.66
9.00
Separation PA
—
—
8.4 +
229 +
Year
—
1994
Spectra
A5
Colors
W
W
Notes:
1821: 8.3 @ 225. 24 measurements. The stars show a similar, but small, proper
motion.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.46 inches.
Separation: AB = 35.4 miles.
Distance (LY): 2,700
Total luminosity (Suns): 350
- 15 -
Zone 78
Hipparcos 2861
HD 190698; SAO 49144
Rating: 4 E
Position: 2004+4645
A
B
Magnitude
9.64
10.70
Separation PA
—
—
16.7 +
109 +
Year
—
1991
Spectra
A
Colors
W
W
Notes:
1892: 16.4 @ 108. 5 measurements.
Observations:
C11 at 115x. This pair lies 5 min SE of a 9m O star.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.31 inches.
Separation: AB = 34.7 miles.
Distance (LY): 1,330
Total luminosity (Suns): 27
Moderate
Espin 1329
ADS 13386; HD 191044; SAO 49179; H N 73
Rating: 1 M
Position: 2006+4500
A
B
Magnitude
8.09
10.70
Separation PA
—
—
8.1 +
211 -
Notes:
1914: 6.5 @ 216. 2 measurements.
Observations:
C8 at 104x.
- 16 -
Year
—
1972
Spectra
F0
Colors
W
?
Zone 78
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.5 inches.
Separation: AB = 12.5 miles.
Distance (LY): 990
Total luminosity (Suns): 44
Espin 1329
Double star; W, ?; 8.1 / 10.7; 8” @ 211
Observed with C11 on 8/6/01
Magnification: 339x
A 719
ADS 13245
Rating: 3 M
Position: 2000+4621
A
B
Magnitude
9.50
9.75
Separation PA
—
—
3.0 +
108 -
- 17 -
Year
—
1991
Spectra
A0
Colors
W
W
Zone 78
Notes:
1904: 2.8 @ 109. 8 measurements.
Observations:
C11 at 115x.
h1463
Rating: 5 M
Position: 2000+4550
A
B
Magnitude
10.34
11.50
Separation PA
—
—
10.2 +
313 +
Year
—
1907
Spectra
Colors
W
W
Notes:
1907: 10.1 @ 312. 2 measurements.
Observations:
C11 at 115x. This pair lies 6 min N of a 6m star.
Distance (LY): 20
Total luminosity (Suns): 0.003
Espin 499
ADS 13483; HD 192036; SAO 49285
Rating: 5 M
Position: 2011+4535
A
B
C
Magnitude
8.35
12.80
13.20
Separation
—
14.4
26.2
PA
—
340
77
Notes:
Both 1 measurement.
Observations:
C8 at 104x. Use averted vision for B.
Very rich field.
- 18 -
Year
—
1907
1907
Spectra
B9
Colors
W
W
No
Zone 78
Deep Sky
Moderate
NGC 6884
Other Names: PK 82+7.1
Rating: 5 M
Position: 2010+4628
Type : Pn
Dimensions: 7"
Class: 2b
Magnitude : 12.5
Notes:
Ralph Copeland discovered this planetary in 1884.
Observations:
C8 at 83x. A fuzzy star that does not magnify well. It lies in a line of three faint
stars.
C11 at 193x with O-III filter.
It is extremely difficult without
the O-III, but leaps out of the
sky at you with it. Very small,
compact, and with a bright
center.
Model (where the Sun is a baseball):
Its diameter would be 99 miles.
Distance (LY): 9,100
Luminosity (suns): 65
NGC 6884
Planetary nebula
Observed with C11 on 9/15/03; s7, t9
Magnification: 140x
- 19 -
Zone 78
Zone 78, Map 4
Double Stars
Easy
h1516
HD 194883; SAO 32566
Rating: 4 D
Position: 2025+5441
A
B
C
Magnitude
7.27
11.17
12.82
Separation
—
47.2 +
49.5
PA
—
147 =
204
Year
—
1985
1912
Spectra
B3 Ve
Colors
W
?
?
Notes:
AB 1905: 46.7 @ 147. 5 measurements.
AC 1 measurement.
Hipparcos/Tycho mission data show different distances for these stars (A: 2,500 light
years, C: 19); they may be optical.
Observations:
C8 at 83x. Moderate field.
STF 2693
ADS 13903; HD 195372; SAO 32613
Rating: 3 E
Position: 2028+5430
A
B
Magnitude
8.17
9.23
Separation PA
—
—
14.1 +
12 -
Year
—
1999
Spectra
A0
Colors
W
W
Notes:
1830: 13.6 @ 14. 16 measurements. The stars show similar proper motions.
- 20 -
Zone 78
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.19 inches.
Separation: AB = 7.54 miles.
Distance (LY): 343
Total luminosity (Suns): 7
Franks 9
HD 235240; SAO 32585
Rating: 4 E
Position: 2026+5401
A
B
Magnitude
8.24
8.89
Separation PA
—
—
59.7 +
238 =
Year
—
1991
Notes:
1899: 59.4 @ 238. 9 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 = 35.3 inches.
Separation: AB = 83.8 miles.
Distance (LY): 900
Total luminosity (Suns): 52
- 21 -
Spectra
K7
Colors
W
W
Zone 78
Espin 991
ADS 14059; HD 235289; SAO 32720
Rating: 4 E
Position: 2036+5435
A
B
C
Magnitude
9.11
11.64
10.64
Separation
—
16.3
62.3 -
PA
—
297
106 +
Year
—
1910
1991
Spectra
K7
Colors
O!
W?
bW
Notes:
AB 1 measurement.
AC 1901: 64.7 @ 102. 5 measurements.
C has a 13.0m companion at 2.5 @ 127 (1910).
Observations:
C8 at 37x. Moderate field.
Espin 2698
ADS 14167; HD 235318; SAO 32793
Rating: 4 E
Position: 2041+5307
A
B
Magnitude
9.44
10.67
Separation PA
—
—
9.1 +
26 =
Year
—
1910
Spectra
K0
Colors
Y
B
Notes:
1902: 8.2 @ 26. 3 measurements.
Observations:
C11 at 115x. There is a beautiful diamond-shaped asterism (four 10m stars) 15 min
NE.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 26.4 inches.
Separation: AB = 1.05 miles.
Distance (LY): 74
Total luminosity (Suns): 0.09
- 22 -
Zone 78
Moderate
STF 2681
ADS 13795; HD 194354; SAO 32516
Rating: 3 M
Position: 2023+5325
A
B
C
D
Magnitude
7.92
11.05
8.92
11.40
Separation
—
6.8 +
38.7 42.8 -
PA
—
41 199 -
Year
—
1991
1991
169 -
Spectra
A0 V
A3
1930
Colors
W
?
Y
Notes:
AB 1831: 6.6 @ 42. 16 measurements.
AC 1831: 41.8 @ 204. 19 measurements. The stars show similar proper motions.
AD 1842: 44.4 @ 172. 4 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches; C = 7.81 inches.
Separation: AB = 13.8 miles; AC = 78.5 miles; AD = 86.8 miles.
Distance (LY): 1,300
Total luminosity (Suns): 148
A 1681
ADS 14094; HD 235300; SAO 32740
Rating: 5 M
Position: 2038+5351
A
B
C
Magnitude
8.71
11.41
12.10
Separation
—
4.2 +
41.3
PA
—
210 330
- 23 -
Year
—
1991
1922
Spectra
G5
Colors
Y
W
W
Zone 78
Notes:
AB 1907: 3.5 @ 213. 7 measurements.
AC 1 measurement.
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.2 inches.
Separation: AB = 1.46 miles; AC = 14.4 miles.
Distance (LY): 224
Total luminosity (Suns): 1.447
Zone 78, Map 5
Double Stars
Easy
Omega 1 Cyg
45 Cyg; Bur 669; ADS 13932; HD 195556; SAO 49712
Rating: 3 E
Position: 2030+4857
A
B
Magnitude
4.94
9.50
Separation PA
—
—
56.5 +
87 +
Year
—
1918
Notes:
1878: 56.3 @ 86. 7 measurements.
Star A is a spectroscopic binary that rotates at 184 kps.
Observations:
C8 at 104x. Rich field.
- 24 -
Spectra
B2.5 IV
Colors
W
Y
Zone 78
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.2 inches.
Separation: AB = 76.7 miles.
Distance (LY): 870
Total luminosity (Suns): 670
Omega 2 Cyg
46 Cyg; Ruchba; H 694; South 756HD 195774; SAO 49741
Rating: 3 E
Position: 2031+4913
A
B
Magnitude
5.44
10.10
Separation PA
—
—
58.4 +
327 +
Year
—
1996
Spectra
M2 III
Colors
W
Y
Notes:
1825: 55.8 @ 319 14 measurements.
The primary is an infra-red source. The stars share common proper motion.
Burnham found a 13.5m star at 17.3 @ 343.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 66.0 inches.
Separation: AB = 36.8 miles.
Distance (LY): 404
Total luminosity (Suns): 91
h1524
ADS 13904; HD 235247
Rating: 4 E
Position: 2029+5039
A
B
Magnitude
9.28
10.51
Separation PA
—
—
5.2 +
131 +
Year
—
1956
Spectra
G5
Colors
Y
B
Notes:
1899: 4.8 @ 126. 6 measurements.
This system may be optical as Hipparcos shows different distances (157 and 26 light
years).
The Tycho-2 Catalogue indicates a single star entry.
- 25 -
Zone 78
Observations:
C11 at 115x.
South 755
HD 195710; SAO 49731
Rating: 4 E
Position: 2031+4912
A
B
Magnitude
6.62
9.54
Separation PA
—
—
60.0 278 =
Year
—
1985
Spectra
A2
Colors
W
rO
Notes:
1825: 60.4 @ 278. 16 measurements. The primary is an infra-red source.
Hipparcos/Tycho data show different distances for these stars; they may be optical.
However, the stars exhibit common proper motion.
Observations:
C8 at 83x. The field is like a sparse open cluster.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.42 inches.
Separation: AB = 43.4 miles.
Distance (LY): 463
Total luminosity (Suns): 37
Espin 2696
Rating: 4 E
Position: 2035+4957
A
B
Magnitude
9.83
10.60
Separation PA
—
—
10.8
148
Year
—
1911
Notes:
1 measurement.
The Tycho-2 Catalog indicates a single star entry.
- 26 -
Spectra
B8
Colors
W
W
Zone 78
Observations:
C11 at 115x. It lies 6 min N of an 8m star.
Scale Model (in which the Sun is a baseball):
Component
Diameter, in
A
4.73
B
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.73 inches.
Separation: AB = 36.6 miles.
Distance (LY): 2,170
Distance, mi
na
36.57
Total luminosity (Suns): 62
Espin 88
ADS 14095; HD 235299; SAO 32746
Rating: 4 E
Position: 2038+5106
A
B
Magnitude
9.47
10.21
Separation PA
—
—
7.7 =
127 =
Year
—
1918
Spectra
G5
Colors
Y
W
Notes:
1901: 7.7 @ 127. 4 measurements.
This system may be optical as Hipparcos shows different distances (191 and 57 light
years).
Observations:
C11 at 115x.
Holden 39
ADS 14072; HD 196670; SAO 32731
Rating: 5 E
Position: 2036+5023
A
B
Magnitude
7.94
10.70
Separation PA
—
—
7.7 +
175 -
- 27 -
Year
—
1908
Spectra
A0 V
Colors
W
?
Zone 78
Notes:
1881: 7.6 @ 176. 5 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 6.96 miles.
Distance (LY): 580
Total luminosity (Suns):
Moderate
Espin 2694
ADS 13831; HD 194614; SAO 49590
Rating: 5 M
Position: 2025+4842
A
B
Magnitude
7.71
11.24
Separation PA
—
—
11.4
321
Year
—
1911
Notes:
1 measurement.
Observations:
C8 at 83x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.2 inches.
Separation: AB = 11.0 miles.
Distance (LY): 620
Total luminosity (Suns): 26
- 28 -
Spectra
B8 V
Colors
W
?
Zone 78
h1558
ADS 14113
Rating: 5 M
Position: 2039+4829
A
B
Magnitude
9.36
11.80
Separation PA
—
—
4.4
206
Year
—
1908
Spectra
Colors
W
rO
Notes:
1 measurement.
Observations:
C11 at 115x. The field is sparse here.
Distance (LY): 530
Total luminosity (Suns): 4.38
Zone 78, Map 6
Double Stars
Easy
Ball 49
U Cyg; HD 193680; SAO 49477
Rating: 3 E
Position: 2020+4754
A
B
Magnitude
7.87
8.25
Separation PA
—
—
65 +
51 =
Year
—
1991
Spectra
R8
Colors
rO!!
W
Notes:
1878: 64 @ 51. 6 measurements. 1991 quadrant reversal (the WDS shows pa 231).
A is a Mira-type variable.
- 29 -
Zone 78
This system may be optical as Hipparcos shows different distances (2,940 and 900
light years).
Observations:
C11 at 115x. Gorgeous color in U Cyg!
STF 2707
ADS 14100; SAO 49878
Rating: 3 E
Position: 2038+4755
A
B
C
Magnitude
7.93
9.64
8.67
Separation
—
22.0 55.3 -
PA
—
30 195 -
Year
—
1991
1991
Spectra
A0
Colors
W
W
V
Notes:
AB 1832: 23.1 @ 32. 18 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. The stars have a small difference in proper
motion.
AC 1832: 55.4 @ 196. 20 measurements.
Espin found a companion to A of 12.23m in 1912, at 16.4 @ 191.
Observations:
C8 at 83x. Faint but rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.10 inches.
Separation: AB = 46.3 miles; AC = 116 miles.
Distance (LY): 1,350
Total luminosity (Suns): 96
- 30 -
Zone 78
h1510
h1511; Espin 29; ADS 13771; SAO 49538
Rating: 4 E
Position: 2022+4747
A
B
C
D
E
Magnitude
9.26
9.50
13.10
11.33
10.66
Separation
—
4.6 +
5.4 30.7 57.3 +
PA
—
149 346 +
321 121 +
Year
—
1970
1925
1909
1909
Spectra
F5
Colors
W
No
No
W
W
Notes:
AB 1900: 4.4 @ 150. 10 measurements.
AC 1900: 6.3 @ 340. 4 measurements.
AD 1900: 31.8 @ 323. 6 measurements.
AE 1901: 56.8 @ 120. 4 measurements.
Opik also measures a wide pair 5' in 90@ from AD: 230@ +/-, 35" +/-, 9.1-10.6.
Observations:
C8 at 104x. A 9m pair lies 3 min E.
Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.0 inches.
Separation: AB = 2.89 miles; AC = 3.39 miles; AD = 19.3 miles; AE = 36.0
miles.
Distance (LY): 403
Total luminosity (Suns): 4
Espin 665
ADS 14012
Rating: 5 E
Position: 2034+4719
A
B
Magnitude
9.91
10.69
Separation PA
—
—
5.8 +
126 +
- 31 -
Year
—
1991
Spectra
Colors
W
O
Zone 78
Notes:
1908: 5.6 @ 125. 3 measurements.
Observations:
C11 at 115x. Very nice field!
Distance (LY): 570
Total luminosity (Suns): 4.11
Bur 1489
Hipparcos 2940 (a); HD 196178; SAO 49804
Rating: 5 E
Position: 2034+4642
A
B
C
Magnitude
5.78
9.50
9.27
Separation
—
0.3 =
118 =
PA
—
60 +
17 =
Year
—
1996
1921
Spectra
B9pSi
Colors
W
No
W
Notes:
AB 1991: 0.3 @ 56. 2 measurements.
AC 1913: 118 @ 17. 3 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.27 inches.
Separation: AB = 1,162 feet; AC = 88.5 miles.
Distance (LY): 481
Total luminosity (Suns): 91
OSS 208
HD 196331; SAO 49830
Rating: 5 E
Position: 2035+4651
A
B
Magnitude
7.74
8.58
Separation PA
—
—
82.3 +
240 -
- 32 -
Year
—
1995
Spectra
K0
Colors
Y
W
Zone 78
Notes:
1876: 76.4 @ 241. 17 measurements.
Hipparcos/Tycho data show different distances for these stars (323 and 480 light
years); they may be optical.
Observations:
C8 at 104x. Extremely rich field.
Moderate
h1513
ADS 13801; HD 194423; SAO 49573
Rating: 5 M
Position: 2024+4631
A
B
Magnitude
8.43
11.70
Separation PA
—
—
13.8 325 -
Year
—
1991
Spectra
B8
Colors
W
W
Notes:
1892: 14.1 @ 326. 7 measurements.
Observations:
C8 at 104x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.38 inches.
Separation: AB = 49.5 miles.
Distance (LY): 2,300
Total luminosity (Suns): 209
Difficult
Espin 89
ADS 14100; HD 196865; SAO 49886
Rating: 5 D
Position: 2038+4804
A
B
Magnitude
6.61
11.00
Separation PA
—
—
16.6 +
200 +
- 33 -
Year
—
1912
Spectra
G5
Colors
W
W
Zone 78
Notes:
1901: 16.5 @ 199. 4 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.6 inches.
Separation: AB = 9.55 miles.
Distance (LY): 369
Total luminosity (Suns): 25.42
Zone 78, Map 7
Double Stars
Easy
Argelander 41
ADS 14378; HD 235384; SAO 32942
Rating: 3 E
Position: 2050+5406
A
B
Magnitude
7.49
9.36
Separation PA
—
—
10.3 +
190 +
Notes:
1901: 9.6 @ 184. 15 measurements.
Observations:
C8 at 104x.
- 34 -
Year
—
1965
Spectra
F0
F
Colors
W
W
Zone 78
Holden 41
ADS 14272; HD 198055; SAO 32861
Rating: 4 E
Position: 2045+5401
A
B
C
Magnitude
8.47
11.80
10.60
Separation
—
3.5 +
8.6 +
PA
—
232 262 -
Year
—
1937
1937
Spectra
K0
Colors
Y
No
bW
Notes:
AB 1881: 3.4 @ 238. 5 measurements.
AC 1881: 7.9 @ 263. 5 measurements.
Observations:
C8 at 104x. It is the NE vertex of a small 9m-10m right triangle.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.0 inches.
Separation: AB = 7.10 miles; AC = 17.4 miles.
Distance (LY): 1,300
Total luminosity (Suns): 108
Espin 995
ADS 14210; HD 197640; SAO 32821
Rating: 5 E
Position: 2043+5206
A
B
Magnitude
8.67
10.40
Separation PA
—
—
9.2
101
Year
—
1910
Spectra
A0
Colors
W
?
Notes:
1 measurement.
Observations:
C8 at 104x. It lies 10 min S of a nice asterism of four 8m-9m stars. Rich field.
- 35 -
Zone 78
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.37 inches.
Separation: AB = 8.47 miles.
Distance (LY): 590
Total luminosity (Suns): 12
Zone 78, Map 8
Double Stars
Easy
Argelander 39
ADS 14194; HD 197548; SAO 49964
Rating: 2 E
Position: 2043+4916
A
B
Magnitude
8.35
8.82
Separation PA
—
—
12.2 +
176 +!
Year
—
1994
Spectra
K5
K0
Colors
O
dO
Notes:
1899: 9.9 @ 109. 33 measurements. The stars have different proper motions and
Hipparcos gives different distances (259 and 150 light years).
There are several very, very faint comes.
Observations:
C8 at 163x. I used the MicroGuide and obtained 13.5" @ 183. John Ryan
(Salamanca, Spain), using an 8" SCT and MicroGuide, measured 13.3" at 178 on
08/08/00.
See the sketch on the next page.
- 36 -
Zone 78
Argelander 39
Double star; O, dO; 8.4 / 8.8; 12” @ 176
Observed with C11 on 7/24/03
Magnification: 98x
Espin 94
ADS 14345; HD 198624; SAO 50116
Rating: 4 E
Position: 2050+5007
A
B
C
BC
Magnitude
6.51
9.90
10.40
Separation PA
—
—
101.6 +
13 +
2.4 =
74 -
Notes:
AB 1899: 101.2 @ 12. 6 measurements.
BC 1901: 2.4 @ 80. 4 measurements.
- 37 -
Year
—
1931
1928
1928
Spectra
F7 V
Colors
Y
W
No
No
Zone 78
Observations:
C8 at 104x. A 10.2m star lies 90" away in pa 45.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.90 inches.
Separation: AB = 190 miles.
Distance (LY): 1,200
Total luminosity (Suns): 312
Bur 365
ADS 14302; HD 198285; SAO 32886
Rating: 5 E
Position: 2047+5148
A
B
Magnitude
7.99
13.50
Separation PA
—
—
15.3 +
286 -
Year
—
1929
Notes:
AB 1892: 14.5 @ 285. 4 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.4 inches.
Separation: AB = 12.4 miles.
Distance (LY): 520
Total luminosity (Suns): 11
- 38 -
Spectra
F0
Colors
W
?
Zone 78
Moderate
STF 2732
ADS 14336; HD 198513; SAO 32908
Rating: 3 M
Position: 2049+5154
A
B
Magnitude
6.26
8.75
Separation PA
—
—
4.2 +
73 -
Year
—
1998
Spectra
B8 Vnp
A3 V
Colors
W
G
Notes:
1831: 4.0 @ 74. 30 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.2 inches; B = 8.10 inches.
Separation: AB = 5.17 miles.
Distance (LY): 790
Total luminosity (Suns): 170
STF 2741
ADS 14504; HD 199955; SAO 33034
Rating: 3 M
Position: 2058+5027
A
B
C
Magnitude
5.97
6.87
10.50
Separation
—
2.2 139.2 -
PA
—
27 356 =
Notes:
AB 1830: 2.4 @ 33. Over 100 measurements.
AC 1879: 139.4 @ 356. 3 measurements.
Observations:
C8 at 206x.
- 39 -
Year
—
1997
1925
Spectra
B8 V
Colors
Y
B
No
Zone 78
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.2 inches.
Separation: AB = 4.29 miles; AC = 271 miles.
Distance (LY): 1,250
Total luminosity (Suns): 860
51 Cyg
Bur 675ADS 14189; HD 197511; SAO 32809
Rating: 5 M
Position: 2042+5020
A
B
C
D
E
Magnitude
5.41
12.40
11.40
11.40
Notes:
AB 1878:
AC 1878:
AD 1878:
AE 1899:
Separation
—
3.1 +
25.8 +
32.6 71.6 +
PA
—
103 +
184 +
329 +
240 =
Year
—
1934
1934
1924
1957
Spectra
B2 V
2.8 @ 101. 7 measurements.
25.4 @ 182. 7 measurements.
32.9 @ 328. 6 measurements.
71.1 @ 240. 6 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.2 inches.
Separation: AB = 4.45 miles; AC = 37.0 miles; AD = 46.8 miles.
Distance (LY): 920
Total luminosity (Suns): 472.72
- 40 -
Colors
yW
No
?
?
No
Zone 78
Difficult
Bur 366
Dembowski 23; ADS 14331; HD 198455
Rating: 4 D
Position: 2049+5029
A
B
C
Magnitude
8.32
8.93
11.01
Separation
—
1.4 =
51.0 +
PA
—
130 +
106 =
Year
—
1998
1984
Spectra
A0
Colors
W
Y
bW
Notes:
AB 1876: 1.4 @ 129. 28 measurements.
AC 1876: 50.8 @ 106. 8 measurements.
C has an 11.20m companion at 1.4 @ 5 (1963).
Observations:
C8 at 280x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.24 inches.
Separation: AB = 950 feet; AC = 6.60 miles.
Distance (LY): 83
Total luminosity (Suns): 0.415
Bur 155
ADS 14370; HD 198834; SAO 32933
Rating: 5 D
Position: 2051+5125
A
B
C
D
Magnitude
6.91
7.66
12.00
10.90
Separation
—
0.8 +
16.0 199.0 -
PA
—
37 +
21 48 =
- 41 -
Year
—
1996
1923
1917
Spectra
F0
Colors
O
O
?
?
Zone 78
Notes:
AB 1876: 0.6 @ 25. 52 measurements.
AC 1885: 17.7 @ 26. 6 measurements.
AD 1880: 199.8 @ 48. 3 measurements.
Observations:
C8 at 516x.
C11 at 560x. W and W for AB, which I rated a "2" by themselves. Very nice pair.
The field here is also very nice, with a nice little clump of stars just E of Bu 155.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.69 inches.
Separation: AB =2,587 feet; AC = 9.83 miles; AD = 122 miles.
Distance (LY): 394
Total luminosity (Suns): 24.19
- 42 -
Zone 78
Zone 78, Map 9
Double Stars
Easy
OS 411
ADS 14190; HD 197488; SAO 49960
Rating: 3 E
Position: 2042+4549
A
B
Magnitude
7.59
10.54
Separation PA
—
—
24.0 +
339 +!
Year
—
1964
Spectra
G2 V
Colors
Y
?
Notes:
1845: 15.2 @ 273. 20 measurements.
Observations:
C8 at 83x. Very rich field-- almost like a loose open cluster.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.30 inches.
Separation: AB = X=6.81 miles.
Distance (LY): 182
Total luminosity (Suns): 2.6
Argelander 40
ADS 14371; SAO 50140
Rating: 3 E
Position: 2051+4519
A
B
Magnitude
9.33
9.90
Separation PA
—
—
9.2 250 -
Notes:
1902: 9.3 @ 251. 8 measurements.
- 43 -
Year
—
1972
Spectra
A5
F
Colors
W
W
Zone 78
Observations:
C11 at 115x. This pair is one vertex of a small 10m triangle.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.78 inches; B = 14.5 inches.
Separation: AB = 4.10 miles.
Distance (LY): 286
Total luminosity (Suns): 1.89
55 Cyg
V1661 Cyg; h1581; ADS 14337; HD 198478; SAO 50099
Rating: 4 E
Position: 2049+4607
A
B
Magnitude
4.82
11.14
Separation PA
—
—
21.3 +
174 =
Year
—
1934
Spectra
B2 Ie
Notes:
20.5 @ 174. 5 measurements. It is a member of the Cyg OB7 Association.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.8 inches.
Separation: AB = 74.8 miles.
Distance (LY): 2,250
Total luminosity (Suns): 4,919
- 44 -
Colors
W
bW
Zone 78
Hipparcos 2979
HD 199312; SAO 50219
Rating: 3 M
Position: 2055+4508
A
B
Magnitude
7.66
9.58
Separation PA
—
—
2.6 =
333 =
Year
—
1998
Spectra
A0 V
Colors
W
?
Notes:
1991: 2.6 @ 333. 3 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 4.90 miles.
Distance (LY): 1,210
Total luminosity (Suns): 116
Moderate
Bur 250
ADS 14350; HD 198625; SAO 50119
Rating: 4 M
Position: 2050+4640
A
B
Magnitude
6.33
11.30
Separation PA
—
—
19.2 7-
Notes:
1875: 20.3 @8. 8 measurements.
This star is an old disk population runaway star.
Observations:
C8 at 83x. Extremely rich field.
- 45 -
Year
—
1934
Spectra
B3 Ve
Colors
yW
?
Zone 78
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.6 inches.
Separation: AB = 27.6 miles.
Distance (LY): 920
Total luminosity (Suns): 202
OS 422
ADS 14411; HD 199206; SAO 50205
Rating: 4 M
Position: 2054+4506
A
B
Magnitude
7.36
9.20
Separation PA
—
—
2.6 333 +
Year
—
1976
Spectra
B8 II
B8
Colors
W
W
Notes:
1846: 2.7 @ 327. 18 measurements.
Observations:
C8 at 280x.
Scale Model (in which the Sun is a baseball):
Component
Diameter, in
A
48.0
B
4.58
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 48.0 inches; B = 4.58 inches.
Separation: AB = 6.69 miles.
Distance (LY): 1,650
Distance, mi
na
6.69
Total luminosity (Suns): 245
Alpha Cyg
Rating: 5 M
Deneb, "the hen's tail"; ADS 14172; HD 197345; SAO 49941; H N 73
Position: 2041+4516
A
B
Magnitude
1.25
11.70
Separation PA
—
—
75.3 106 =
- 46 -
Year
—
1924
Spectra
A2 I
Colors
W
?
Zone 78
Notes:
1879 (Espin): 75.5 @ 106. 5 measurements.
Deneb is a member of the Cyg OB7 Association and is shedding mass at the rate of 3
ten-billionths suns a year. It is 25 times as massive as the Sun and has a surface
temperature of 9,700o K. It is also an infra-red source. It is probably the star that lights
the North America Nebula (70 light years away).
From James Kaler's Star Notes:
Deneb, simply put, is one of the truly great stars of our Galaxy. It serves a three-fold
role among the constellations. Its very name tells its first role. "Deneb" is from an Arabic
word meaning "tail," as this first magnitude star, the 17th brightest as it appears in our
sky, represents the tail of Cygnus the Swan. The reversal of the constellation makes the
asterism of the Northern Cross, with Deneb now at the top, the cross seen rising on its
side in early northern summer, standing upright in the west in early winter evenings.
Deneb also makes the western apex of the famed Summer Triangle, which also
incorporates Vega and Altair. All three of these white stars have similar surface
temperatures, Vega, at 9,500 Kelvin, the warmest. Though Vega and Altair are really
quite luminous, they are first magnitude primarily because they are close to us, averaging
only 25 light years away. Deneb's luminosity makes it about the intrinsically brightest
star of its kind (that is, in its temperature class) in the entire Galaxy. If placed at the
distance of Vega, Deneb would shine as bright as a well-developed crescent Moon.
Deneb is a true supergiant, its diameter, calculated from its temperature and luminosity, is
200 times that of the Sun. If it were placed at the center of our Solar System, it would
extend to the orbit of the Earth. While far from the largest star in the Galaxy, Deneb is
one of the biggest of its kind. It is evolving and has stopped fusing hydrogen in its core.
Just what it is doing, however, we do not know. Having begun its life as a star of some 25
solar masses, its fate is almost certainly to explode sometime within the next couple of
million years. The star is constant in its light, but its spectrum, its light as seen when
stretched into a rainbow, is slightly variable. It is among the most magnificent stars you
can see with the unaided eye.
Observations:
C8 at 206x. Use averted vision.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 600 inches!
Separation: AB = 376 miles.
Distance (LY): 3,200
Total luminosity (Suns): 250,017
- 47 -
Zone 78
Difficult
h1597
Espin 95; ADS 14438
Rating: 5 D
Position: 2056+4722
A
B
Magnitude
9.67
13.35
Separation PA
—
—
12.1 129 +
Year
—
1905
Spectra
Colors
W
?
Notes:
1901: 12.6 @ 126. 2 measurements.
Observations:
C8 at 280x. Extremely rich field (the open cluster NGC 6991).
Deep Sky
Easy
Barkanova 1
Rating: 3 E
Position: 2054+4602
Type : OC
Dimensions: 20'
Class: III 2 m
Cluster population: 12
Magnitude : 9.0
Observations:
C11 at 98x. A scattered gropu in a very rich field. More or less round. I counted 36
stars, the brightest being 8.3m.
C11 at 98x. A large and spread out group with a very wide range in magnitudes. It is
embedded in the North America nebulosity, which was clearly seen.
- 48 -
Zone 78
Moderate
NGC 6989
Other Names: H VIII 82
Rating: 4 M
Position: 2053+4511
Type : Oc
Cluster population: 17
Magnitude : 12.5
Dimensions: 10'
Notes:
Probably an asterism. (The blue POSS print shows it as a star cloud.)
Observations:
C8 at 83x. Four foreground stars are hard on the seeing.
Difficult
NGC 6991
Astronomical League Program: Herschel II Club
Rating: 4 D
Position: 2057+4725
Type : Oc
Magnitude : 13.0
Dimensions: 5'
Observations:
C11 at 115x with broadband filter. Very very faint and grainy look. After adapting to
the view, I could resolve 6 stars in a zig-zag line.
Distance: 2.280 light years
Luminosity: 3 Suns
- 49 -
Zone 78
IC 5076
Rating: 5 D
Position: 2056+4725
Type : Gn
Class: R
Dimensions: 7'
Observations:
C8 at 83x. Very rich field.
- 50 -
Zone 78
Zone 78 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
OS 404 rej
2016+5230
2E
1
Argelander 39
2043+4916
2E
8
26 Cyg
2001+5006
3E
2
Omicron 1 Cyg
2014+4644
3E
3
STF 2658
2014+5307
3E
1
Hough 455
2015+5409
3E
1
Omicron 2 Cyg
2015+4743
3E
3
STF 2667
2017+4538
3E
3
Espin 2692
2019+5212
3E
1
Espin 800
2020+5115
3E
2
Ball 49
2020+4754
3E
6
STF 2693
2028+5430
3E
4
Omega 1 Cyg
2030+4857
3E
5
Omega 2 Cyg
2031+4913
3E
5
STF 2707
2038+4755
3E
6
OS 411
2042+4549
3E
9
Argelander 41
2050+5406
3E
7
Argelander 40
Hipparcos
2861
2051+4519
3E
9
2004+4645
4E
3
Component
A
B
A
B
A
B
C
D
E
A
B
A
B
C
A
B
C
D
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
- 51 -
Mag
7.40
9.90
8.35
8.82
5.05
10.10
12.90
15.80
10.50
3.80
7.01
7.02
9.45
10.33
7.26
9.08
13.59
10.60
3.96
8.49
8.66
9.00
9.44
9.44
8.90
10.30
11.51
7.87
8.25
8.17
9.23
4.94
9.50
5.44
10.10
7.93
9.64
8.67
7.59
10.54
7.49
9.36
9.33
9.90
9.64
10.70
Separation
—
28.7 —
12.2 +
—
42.3 +
167.4
PA
—
115 +
—
176 +!
—
148 +
347
—
107
—
5.6 +
60.7 +!!
—
39.7 +
32.4 +
38.1 +
—
208.9 =
—
8.4 +
—
24.6 =
—
30.0 +
42.50 +
—
65 +
—
14.1 +
—
56.5 +
—
58.4 +
—
22.0 55.3 —
24.0 +
—
10.3 +
—
9.2 —
16.7 +
—
173
—
105 60.7 +!!
—
72 32.4 +
38.1 +
—
175 =
—
229 +
—
86 -?
—
320 +
42.50 +
—
51 =
—
12 —
87 +
—
327 +
—
30 55.3 —
339 +!
—
190 +
—
250 —
109 +
Zone 78
Designation
Position
Rating
Map
h1481
2005+4924
4E
2
STF 2648
2010+4949
4E
2
Espin 502
2013+4911
4E
2
Espin 2693
2019+4938
4E
2
h1510
2022+4747
4E
6
Franks 9
2026+5401
4E
4
h1524
2029+5039
4E
5
South 755
2031+4912
4E
5
Espin 2696
2035+4957
4E
5
Espin 991
2036+5435
4E
4
Espin 88
2038+5106
4E
5
Espin 2698
2041+5307
4E
4
Holden 41
2045+5401
4E
7
55 Cyg
2049+4607
4E
9
Espin 94
2050+5007
4E
8
STF 2619
2001+4815
5E
2
Bur 426
2002+5439
5E
1
Engelmann 70
2006+5310
5E
1
Bur 1489
2034+4642
5E
6
Espin 665
2034+4719
5E
6
Component
- 52 -
A
B
C
A
B
A
B
A
B
C
Mag
10.44
10.39
10.36
7.84
9.51
7.02
10.23
8.72
9.53
12.50
A
B
C
D
E
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
C
A
B
A
B
C
9.26
9.50
13.10
11.33
10.66
8.24
8.89
9.28
10.51
6.62
9.54
9.83
10.60
9.11
11.64
10.64
9.47
10.21
9.44
10.67
8.47
11.80
10.60
4.82
11.14
6.51
9.90
10.40
A
B
C
A
B
C
A
B
A
B
C
A
B
8.00
8.03
11.70
8.41
9.94
8.28
5.85
9.67
5.78
9.50
9.27
9.91
10.69
Separation
—
18.0 +
27.5 =
—
6.8 +
—
13.3 +
—
30.7 -
PA
—
187 -?
27.5 =
—
116 =
—
221 —
110 -
BC: 17.4
—
4.6 +
5.4 30.7 57.3 +
—
59.7 +
—
5.2 +
—
60.0 —
10.8
—
16.3
62.3 —
7.7 =
—
9.1 +
—
3.5 +
8.6 +
—
21.3 +
—
101.6 +
BC: 186
—
149 5.4 30.7 121 +
—
238 =
—
131 +
—
278 =
—
148
—
297
62.3 —
127 =
—
26 =
—
232 8.6 +
—
174 =
—
13 +
BC: 2.4 =
—
4.1 17.1 —
5.8 =
162.3 —
168.5 —
0.3 =
118 =
—
5.8 +
BC: 74 —
240 17.1 —
307 162.3 —
132 +
—
60 +
118 =
—
126 +
Zone 78
Designation
Position
Rating
Map
OSS 208
2035+4651
5E
6
Holden 39
2036+5023
5E
5
Espin 995
2043+5206
5E
7
Bur 365
2047+5148
5E
8
Espin 1329
2006+4500
1M
3
A 719
2000+4621
3M
3
STF 2681
2023+5325
3M
4
STF 2732
Hipparcos
2979
2049+5154
3M
8
2055+4508
3M
9
STF 2741
2058+5027
3M
8
Bur 250
2050+4640
4M
9
OS 422
2054+4506
4M
9
h1463
2000+4550
5M
3
Stein 2497
2004+5428
5M
1
Espin 499
2011+4535
5M
3
Engelmann 73
2017+5017
5M
2
h1513
2024+4631
5M
6
Espin 2694
2025+4842
5M
5
A 1681
2038+5351
5M
4
h1558
2039+4829
5M
5
Alpha Cyg
2041+4516
5M
9
Component
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
D
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
C
A
B
C
D
E
A
B
A
B
A
B
C
A
B
A
B
- 53 -
Mag
7.74
8.58
7.94
10.70
8.67
10.40
7.99
13.50
8.09
10.70
9.50
9.75
7.92
11.05
8.92
11.40
6.26
8.75
7.66
9.58
5.97
6.87
10.50
6.33
11.30
7.36
9.20
10.34
11.50
7.70
11.30
8.35
12.80
13.20
8.15
10.91
10.37
11.74
10.10
8.43
11.70
7.71
11.24
8.71
11.41
12.10
9.36
11.80
1.25
11.70
Separation
—
82.3 +
—
7.7 +
—
9.2
—
15.3 +
—
8.1 +
—
3.0 +
—
6.8 +
38.7 42.8 —
4.2 +
—
2.6 =
—
2.2 139.2 —
19.2 —
2.6 —
10.2 +
—
8.4 —
14.4
26.2
—
74.4 +!
93.7 122.0 +
160.4 +
—
13.8 —
11.4
—
4.2 +
41.3
—
4.4
—
75.3 -
PA
—
240 —
175 —
101
—
286 —
211 —
108 —
41 38.7 42.8 —
73 —
333 =
—
27 139.2 —
7—
333 +
—
313 +
—
64 -!
—
340
26.2
—
77 -!
93.7 122.0 +
118 —
325 —
321
—
210 41.3
—
206
—
106 =
Zone 78
Designation
Position
Rating
Map
51 Cyg
2042+5020
5M
8
STF 2645
2010+5140
4D
2
h1516
2025+5441
4D
4
Bur 366
2049+5029
4D
8
AC 17
2012+5128
5D
2
Espin 89
2038+4804
5D
6
Bur 155
2051+5125
5D
8
h1597
2056+4722
5D
9
Component
A
B
C
D
Mag
5.41
12.40
11.40
11.40
A
B
A
B
C
A
B
C
A
B
C
D
E
A
B
A
B
C
D
A
B
7.99
8.49
7.27
11.17
12.82
8.32
8.93
11.01
6.01
10.34
13.00
12.55
??
6.61
11.00
6.91
7.66
12.00
10.90
9.67
13.35
Separation
—
3.1 +
25.8 +
32.6 71.6 +
—
1.6 +
—
47.2 +
49.5
—
1.4 =
51.0 +
—
4.3 +
83.5 +
74.0 130.7
—
16.6 +
—
0.8 +
16.0 199.0 —
12.1 -
PA
—
103 +
25.8 +
32.6 240 =
—
138 +
—
147 =
49.5
—
130 +
51.0 +
—
82 +
83.5 +
74.0 149
—
200 +
—
37 +
16.0 199.0 —
129 +
Deep Sky Objects
Object
Barkanova 1
NGC 6989
NGC 6884
NGC 6991
IC 5076
Position
2054+4602
2053+4511
2010+4628
2057+4725
2056+4725
Rating
3E
4M
5M
4D
5D
Map
9
9
3
9
9
Type
OC (III 2 m)
Oc ()
Pn (2b)
Oc ()
Gn (R)
- 54 -
Specifications
Surface
Mag
Br
9.0
12.5
12.5
13.0
Population
12
17