Zone 77, Master Map
Normal View
Zone Master, Normal View, 10 deg FOV
+54°00'
Cygnus
f
ψ
κ
c
+52°00'
i
ι1
θ
g
d
+48°00'
j
Blinking Planetary
+50°00'
ι2
Draco
Lyra
h
e
+46°00'
k
Hole-in-a-Cluster
δ
20h 12m
20h 00m
19h 48m
19h 36m
19h 24m
19h 12m
19h 00m
18h 48m
Zone 77, Map 1
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+54°00'
Espin 653
Espin 984
A 1394
Bemporad 37
Kappa Cyg
+53°00'
κ
Espin 983
Espin 650
+52°00'
STF 2450
Espin 651
STF 2451
19h 24m
19h 18m
19h 12m
19h 06m
19h 00m
18h 54m
Zone 77, Map 1
Mirror Image
+54°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
A 1394
Espin 984
Bemporad 37
+53°00'
Kappa Cygκ
Espin 983
Espin 650
+52°00'
STF 2450
Espin 651
STF 2451
18h 54m
19h 00m
19h 06m
19h 12m
19h 18m
19h 24m
Zone 77, Map 2
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+52°00'
STF 2450
Espin 651
+51°00'
STF 2451
Espin 979
NGC 6764
+50°00'
STF 2511 rej
STF 2496
Espin 1095
Espin 2673
+49°00'
STF 2486
Smart 85
19h 24m
19h 18m
19h 12m
19h 06m
19h 00m
18h 54m
Zone 77, Map 2
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+52°00'
STF 2450
Espin 651
+51°00'
STF 2451
Espin 979
NGC 6764
+50°00'
STF 2511 rej
STF 2496
Espin 2673
Espin 1095
STF 2486
+49°00'
Smart 85
18h 54m
19h 00m
19h 06m
19h 12m
19h 18m
19h 24m
Zone 77, Map 3
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h1382
+48°00'
NGC 6742
Draco
A 706
Cygnus
h1380
Espin 1163
Lyra
h1377
+47°00'
A. G. 366
16 Lyr
h1357
STF 2463
h1356
19h 18m
19h 12m
19h 06m
19h 00m
+46°00'
OS 372
Zone 77, Map 3
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h1382
Draco
Cygnus
A 706
+48°00'
NGC 6742
h1380
Lyra
h1377
+47°00'
A. G. 366
+46°00'
16 Lyr
h1357
STF 2463
h1356
19h 00m
19h 06m
19h 12m
19h 18m
Zone 77, Map 4
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+54°00'
Stein 2450
Espin 653
h1411
A 1401
Espin 984
A 1394
κ
STF 2555
Kappa Cyg
+53°00'
Guillaume 27
NGC 6798
STF 2542
Holmes 25
Espin 129
Espin 983
ι1
+52°00'
A. G. 388
Espin 794
ι2
19h 42m
19h 36m
19h 30m
19h 24m
19h 18m
Zone 77, Map 4
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+54°00'
Stein 2450
Espin 653
h1411
NGC 6798
Espin 984
A 1401
Kappa Cygκ
STF 2555
Guillaume 27
+53°00'
A 1394
STF 2542
Holmes 25
Espin 129
Espin 983
A. G. 388
Espin 794
ι2
19h 18m
19h 24m
19h 30m
19h 36m
19h 42m
+52°00'
ι1
Zone 77, Map 5
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+51°00'
ι2
Espin 793
NGC 6826
UGC 11465
16 Cyg
θ
Theta Cyg
OS 374 rej
h1418
+50°00'
STF 2511 rej
OSS 182
Espin 1095
+49°00'
h1428
h1382
19h 42m
19h 36m
19h 30m
19h 24m
19h 18m
Zone 77, Map 5
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+51°00'
ι2
Espin 793
UGC 11465
16 Cyg
STF 2511 rej
θ Theta Cyg
OS 374 rej
+50°00'
OSS 182
STF 2496
h1418
Espin 1095
+49°00'
h1428
h1382
19h 18m
19h 24m
19h 30m
19h 36m
19h 42m
Zone 77, Map 6
Normal Image
+48°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h1382
Espin 1163
+47°00'
OS 372
Hole-in-a-Cluster
NGC 6811
OSS 187
h1427
+46°00'
h1404
A 714
19h 42m
19h 36m
19h 30m
19h 24m
19h 18m
Zone 77, Map 6
Mirror Image
+48°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h1382
A 706
Espin 1163
+47°00'
OS 372
Hole-in-a-Cluster
NGC 6811
OSS 187
h1427
+46°00'
h1404
A 714
19h 18m
19h 24m
19h 30m
19h 36m
19h 42m
Zone 77, Map 7
Normal Image
Espin 655
h1422
Bur 426
+55°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2598
Stein 2497
Stein 2478
+54°00'
Stein 2450
Argelander 35
Espin 2683
A 1401
STF 2555
Guillaume 27
+53°00'
Engelmann 70
ψ
Psi Cyg
+52°00'
A. G. 388
Espin 794
A. G. 239
20h 06m
20h 00m
19h 54m
19h 48m
19h 42m
19h 36m
Zone 77, Map 7
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+55°00'
Espin 655
h1422
Bur 426
STF 2598
Stein 2497
Stein 2478
+54°00'
Stein 2450
Argelander 35
Espin 2683
A 1401
STF 2555
+53°00'
Guillaume 27
Espin 129
ψ
Psi Cyg
+52°00'
A. G. 388
Espin 794
A. G. 239
19h 36m
19h 42m
19h 48m
19h 54m
20h 00m
20h 06m
Zone 77, Map 8
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Psi Cyg
A. G. 388
Espin 794
+51°00'
A. G. 239
+52°00'
ψ
UGC 11465
Blinking Planetary
16 Cyg
NGC 6826
+50°00'
θ
26 Cyg
Argelander 87
h1481
h1428
Espin 2686
20h 00m
19h 54m
19h 48m
19h 42m
19h 36m
Zone 77, Map 8
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
ψ
Psi Cyg
+52°00'
A. G. 388
Espin 794
+51°00'
A. G. 239
Espin 793
θ
26 Cyg
h1418
Argelander 87
h1428
19h 36m
Espin 2686
19h 42m
19h 48m
19h 54m
20h 00m
+50°00'
UGC 11465
16 Cyg
Blinking Planetary
NGC 6826
Zone 77, Map 9
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+48°00'
STF 2619
A. G. 240
STF 2611
+47°00'
OSS 190
Hipparcos 2861
Hole-in-a-Cluster
A 719
Argelander 86
NGC 6811
+46°00'
h1427
h1463
Espin 23
δ
Delta Cyg
Dawes 13
20h 00m
Smart 109
19h 54m
19h 48m
19h 42m
+45°00'
Kustner 125
19h 36m
Zone 77, Map 9
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+48°00'
STF 2619
A. G. 240
STF 2611
+47°00'
OSS 190
A 719
Argelander 86
h1427
h1463
+46°00'
OSS 187
Hole-in-a-Cluster
NGC 6811
Kustner 125
Delta Cyg
Espin 23
+45°00'
δ
Dawes 13
Smart 109
19h 36m
19h 42m
19h 48m
19h 54m
20h 00m
Zone 77
Index
1 Reference Star, 59 Double Stars,
1 Planetary Nebula, 1 Open Cluster, 3 Galaxies
Flamsteed
Espin 653 ............................................. 17
Espin 793 ............................................. 25
Espin 794 ............................................. 19
Espin 979 ............................................... 8
Espin 983 ............................................... 4
Espin 984 ............................................. 21
16 Cyg.................................................. 33
16 Lyr .................................................. 15
A
A 1394 ................................................... 4
A 1401 ................................................. 20
A 706 ................................................... 14
A 714 ................................................... 29
A. G. 239 ............................................. 34
A. G. 240 ............................................. 37
A. G. 388 ............................................. 18
Argelander 35 ...................................... 30
Argelander 86 ...................................... 38
Argelander 87 ...................................... 35
G
Guillaume 27........................................ 18
H
h1377 ................................................... 15
h1380 ................................................... 13
h1382 ................................................... 13
h1404 ................................................... 27
h1411 ................................................... 20
h1418 ................................................... 24
h1427 ................................................... 28
h1428 ................................................... 24
Holmes 25 ............................................ 16
B
Bemporad 37.......................................... 5
D
Delta Cyg............................................. 40
K
E
Kappa Cyg ............................................. 3
Kustner 125.......................................... 39
Espin 1095 ............................................. 9
Espin 1163 ........................................... 28
Espin 129 ............................................. 21
Espin 23 ............................................... 40
Espin 2673 ........................................... 11
Espin 2683 ........................................... 31
Espin 2686 ........................................... 35
Espin 651 ............................................... 5
N
NGC 6764 ............................................ 11
NGC 6798 ............................................ 22
NGC 6811 ............................................ 29
NGC 6826 ............................................ 36
-1-
Zone 77
O
Psi Cyg................................................. 32
STF 2451................................................ 9
STF 2463.............................................. 14
STF 2486................................................ 6
STF 2496.............................................. 10
STF 2511 rej .......................................... 7
STF 2542.............................................. 17
STF 2555.............................................. 16
STF 2598.............................................. 31
STF 2611.............................................. 38
S
T
Smart 85................................................. 7
Stein 2450 ............................................ 32
Stein 2478 ............................................ 19
STF 2450 ............................................... 3
Theta Cyg............................................. 25
OS 372 ................................................. 27
OS 374 rej............................................ 23
OSS 182............................................... 23
OSS 187............................................... 26
OSS 190............................................... 39
P
U
UGC 11465 .......................................... 37
-2-
Zone 77
Zone 77, Map 1
Reference Star
Kappa Cyg (1 Cyg; HD 181276; SAO 31537)
Position: 1917+5322
Mag : 3.8
Spectrum : K0 III Color : yO
Assumed distance: 123 light years
Assumed luminosity (suns): 36
Notes:
This star is a spectroscopic binary and an infra-red source.
Double Stars
Easy
STF 2450
Hussey 757; ADS 11979; HD 177483; SAO 31337
Rating: 3 E
Position: 1902+5215
A
B
Magnitude
6.35
9.68
Separation PA
—
—
5.4 +
299 -
Year
—
1997
Spectra
G8 III
Colors
Y
?
Notes:
1832: 4.9 @ 305. 23 measurements.
B has a very close companion of 10.40m (0.1 @ 18 in 1998), with an orbit of 138
years, semi-major axis of 0.20" and retrograde motion.
Observations:
C8 at 104x.
-3-
Zone 77
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 43.5 inches.
Separation: AB = 5.39 miles.
Distance (LY): 640
Total luminosity (Suns): 102
A 1394
ADS 12341; HD 234872; SAO 31585
Rating: 4 E
Position: 1920+5333
A
B
C
Magnitude
9.44
12.70
10.21
Separation
—
2.4 +
54.4 +
PA
—
356 =?
358 =
Year
—
1986
1984
Spectra
F2
Colors
W
No
W
Notes:
AB 1906: 1.4 @ 176. 5 measurements. Quadrant reversal?
AC 1901: 47.8 @ 358. 7 measurements. May be optical because Hipparcos gives
different distances (323 and 92 light years).
Observations:
C8 at 104x. A nice field lies to the SW.
Espin 983
ADS 12383
Rating: 5 E
Position: 1922+5245
A
B
C
Magnitude
10.61
11.40
11.88
Separation
—
2.6 22.6 -
PA
—
212 +
47 +
Notes:
AB 1910: 3.4 @ 211. 2 measurements.
AC 1901: 23.0 @ 45. 3 measurements.
-4-
Year
—
1977
1910
Spectra
Colors
W
No
W
Zone 77
Observations:
C8 at 104x. Two bright stars (8.5m, 9.0m) lie 7 min SW.
Moderate
Espin 651
ADS 11941
Rating: 5 M
Position: 1900+5207
A
B
Magnitude
10.77
11.20
Separation PA
—
—
5.4
137
Year
—
1993
Spectra
Colors
W
W
Notes:
1908: 5.9 @ 140. 2 measurements.
Observations:
C11 at 193x. Very faint.
Bemporad 37
Rating: 5 M
Position: 1901+5328
A
B
Magnitude
10.69
11.53
Separation PA
—
—
10.4 +
284 +
Year
—
1902
Notes:
1897: 9.9 @ 280. 5 measurements.
Observations:
C11 at 98x.
Distance (LY): 228
Total luminosity (Suns): 0.315
-5-
Spectra
Colors
W
rO
Zone 77
Zone 77, Map 2
Double Stars
Easy
STF 2486
ADS 12169; HD 179958; SAO 48192
Rating: 1 E
Position: 1912+4951
A
B
C
D
Magnitude
5.85
6.00
13.30
11.4
Separation
—
7.5 22.5 -!!
173.1 +
PA
—
207 82 +!!
Year
—
1997
1991
85 +
Spectra
G4 V
G4 V
Colors
Y
Y
No
1910
Notes:
AB 1819: 9.0 @ 223. Over 100 measurements. The stars share a large common
proper motion.
AC 1910: 55.9 @ 7. 3 measurements.
AD 1881: 171.2 @ 79. 2 measurements.
Observations:
C8 at 104x. Bright and rich field. Webb described it as a "beautiful field."
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches; B = 16.4 inches.
Separation: AB = 4,963 feet; AC = 2.84 miles; AD = 21.8 miles.
Distance (LY): 81
Total luminosity (Suns): 1.97
-6-
Zone 77
STF 2511 rej
ADS 12343; HD 182076; SAO 31586
Rating: 3 E
Position: 1920+5020
A
B
C
Magnitude
7.30
11.10
10.17
Separation
—
8.3 77.7 -
PA
—
48 +
118 +
Year
—
1991
1991
Spectra
K5
Colors
Y
?
W
Notes:
AB 1904: 12.4 @ 42. 5 measurements.
AC 1902: 78.1 @ 116. 7 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 32.8 inches.
Separation: AB = 9.06 miles; AC = 84.8 miles.
Distance (LY): 700
Total luminosity (Suns): 54
Smart 85
SAO 48207
Rating: 4 E
Position: 1913+4945
A
B
Magnitude
9.04
10.01
Separation PA
—
—
31.2 211 +
Notes:
1904: 33.7 @ 210. 3 measurements.
Observations:
C11 at 115x. STF 2486 is only 5 min NW.
-7-
Year
—
1991
Spectra
K0
Colors
Y
rO
Zone 77
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.8 inches.
Separation: AB = 9.00 miles.
Distance (LY): 185
Total luminosity (Suns): 0.94
Moderate
Espin 979
ADS 12083; HD 234806; SAO 31399
Rating: 5 M
Position: 1908+5057
A
B
C
Magnitude
9.69
11.40
11.60
Separation
—
6.9
19.3 -
PA
—
196
46 +
Year
—
1991
1991
Notes:
AB 1 measurement.
AC 1910: 19.7 @ 44. 3 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.95 inches.
Separation: AB = 6.89 miles; AC = 19.2 miles.
Distance (LY): 640
Total luminosity (Suns): 5.88
-8-
Spectra
A5
Colors
W
?
W?
Zone 77
Espin 1095
ADS 12317; HD 181678; SAO 48325
Rating: 5 M
Position: 1919+4951
A
B
Magnitude
8.78
12.65
Separation PA
—
—
6.7 +
134 =
Year
—
1991
Spectra
G
Colors
Y
O?
Notes:
1911: 6.5 @ 134. 4 measurements.
Observations:
C8 at 104x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.3 inches.
Separation: AB = 1.90 miles.
Distance (LY): 182
Total luminosity (Suns): 0.9
Difficult
STF 2451
ADS 11997; HD 234786; SAO 31345
Rating: 3 D
Position: 1903+5135
A
B
Magnitude
9.42
9.54
Separation PA
—
—
2.0 81 +
Year
—
1995
Notes:
1831: 2.6 @ 58. 47 measurements.
Observations:
C8 at 280x. This pair had an oval image at 104x.
-9-
Spectra
F8
Colors
W
pO
Zone 77
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.2 inches.
Separation: AB = 1.03 miles.
Distance (LY): 331
Total luminosity (Suns): 5
STF 2496
ADS 12240; HD 180756; SAO 48247
Rating: 3 D
Position: 1915+5004
A
B
C
Magnitude
6.49
10.10
10.00
Separation
—
2.1 +
185.7 +
PA
—
80 +
242 =
Year
—
1991
1988
Notes:
AB 1832: 2.4 @ 78. 14 measurements.
AC 1881: 185.6 @ 242. 3 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 43.5 inches.
Separation: AB = 1.12 miles; AC = 99.4 miles.
Distance (LY): 343
Total luminosity (Suns): 29
- 10 -
Spectra
G8 III
Colors
Y
O
No
Zone 77
Espin 2673
ADS 12034; HD 178208; SAO 48071
Rating: 5 D
Position: 1905+4955
A
B
Magnitude
6.45
11.90
Separation PA
—
—
12.3
130
Year
—
1911
Spectra
K5 III
Colors
O
?
Notes:
1 measurement.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 54.3 inches.
Separation: AB = 11.1 miles.
Distance (LY): 580
Total luminosity (Suns): 70.5
Deep Sky Objects
Moderate
NGC 6764
Other Names: UGC 11407
Rating: 3 M
Position: 1908+5055
Type : Gal
Surface brightness: 12.8
Class: SB(s)bc
Dimensions: 2.3' x 1.4'
Notes:
This is a Seyfert galaxy.
- 11 -
Magnitude : 11.9
PA: 62
Zone 77
Observations:
C8 at 104x. It has a sharp nucleus and, with averted vision, a soft and extensive halo.
C11 at 98x. Very bright nucleus (almost stellar) with strong halo.
Model (where the Sun is a baseball):
Its diameter would be 23 million miles.
Distance (LY): 108,000,000
Radial velocity (km/sec): +2,416
Luminosity (suns): 16,000,000,000
NGC 6764
Gal (SBb)
Observed with C11 on 9/26/03; s7, t9
Magnification: 98x
Okie-Tex Star Party
- 12 -
Zone 77
Zone 77, Map 3
Double Stars
Easy
h1380
ADS 12183
Rating: 3 E
Position: 1913+4746
A
B
Magnitude
9.32
9.92
Separation PA
—
—
5.3 +
228 +
Year
—
1997
Spectra
A0
Colors
W
B
Notes:
1875: 5.2 @ 227. 6 measurements.
Observations:
C11 at 115x.
h1382
ADS 12276; HD 181277; SAO 48300
Rating: 3 E
Position: 1918+4806
A
B
Magnitude
8.09
9.60
Separation PA
—
—
7.7 312 +
Notes:
1897: 8.1 @ 310. 8 measurements.
Observations:
C8 at 104x.
- 13 -
Year
—
1991
Spectra
A0
Colors
W
R?
Zone 77
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.16 inches.
Separation: AB = 13.6 miles.
Distance (LY): 1,130
Total luminosity (Suns): 75
STF 2463
ADS 12047; HD 178328; SAO 48082
Rating: 4 E
Position: 1906+4549
A
B
C
Magnitude
8.90
10.60
12.50
Separation
—
9.7 +
23.9 +
PA
—
0280 -
Year
—
1997
1962
Spectra
G5
Colors
Y
O
?
Notes:
AB 1832: 9.6 @ 10. 11 measurements.
AC 1901: 23.7 @ 283. 3 measurements.
Observations:
C8 at 104x.
Moderate
A 706
ADS 12229; SAO 48234
Rating: 2 M
Position: 1915+4756
A
B
Magnitude
9.49
9.62
Separation PA
—
—
1.5 +
254 +
Notes:
1904: 1.4 @ 251. 13 measurements.
Observations:
C11 at 339x.
- 14 -
Year
—
1999
Spectra
F8
Colors
W
W
Zone 77
16 Lyr
h1362ADS 11964; HD 177196; SAO 48011
Rating: 5 M
Position: 1901+4656
A
B
Magnitude
5.00
10.50
Separation PA
—
—
44
281
Year
—
1925
Spectra
A5 V
Colors
yW
?
Notes:
This star is a member of the Ursa Major moving stream. It rotates at 121 kps.
Observations:
C8 at 206x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.50 inches.
Separation: AB = 8.78 miles.
Distance (LY): 128
Total luminosity (Suns): 13
h1377
HD 179959; SAO 48194
Rating: 5 M
Position: 1912+4722
A
B
Magnitude
6.54
12.60
Separation PA
—
—
36.2 =
357 =
Year
—
1912
Notes:
1901: 36.2 @ 357. 2 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 22.0 inches.
Separation: AB = 138 miles.
Distance (LY): 2,450
Total luminosity (Suns): 1,140
- 15 -
Spectra
K0
Colors
Y
W
Zone 77
Zone 77, Map 4
Double Stars
Easy
STF 2555
ADS 12691; HD 234943; SAO 31814
Rating: 3 D
Position: 1936+5322
A
B
Magnitude
9.42
9.80
Separation PA
—
—
1.8 =
283 +
Year
—
1999
Spectra
F5
Colors
W
W
Notes:
1833: 1.8 @ 280. 25 measurements.
Observations:
C8 at 280x. Notched.
Holmes 25
HD 184468; SAO 31755
Rating: 2 E
Position: 1932+5259
A
B
Magnitude
8.86
9.64
Separation PA
—
—
11.6 254 -
Notes:
1877: 14.4 @ 256. 5 measurements.
Observations:
C11 at 115x. Nice field.
- 16 -
Year
—
1991
Spectra
A0
Colors
W
W
Zone 77
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.44 inches.
Separation: AB = 12.9 miles.
Distance (LY): 710
Total luminosity (Suns): 16.7
Espin 653
ADS 12460
Rating: 4 E
Position: 1926+5409
A
B
Magnitude
10.37
10.53
Separation PA
—
—
12.1 =
106 =
Year
—
1991
Spectra
Colors
W
W
Notes:
1901: 12.1 @ 106. 4 measurements.
Observations:
C11 at 115x.
Distance (LY): 108
Total luminosity (Suns): 0.121
STF 2542
AB = Holmes 25; ADS 12580; HD 184424; SAO 31751
Rating: 4 E
Position: 1932+5300
A
B
C
Magnitude
8.40
9.20
10.90
Separation
—
11.5 +
42.5 -
PA
—
253 268 +
Year
—
1969
1923
Spectra
G0
Notes:
AB 1830: 11.3 @ 254. 16 measurements.
AC 1905: 42.7 @ 267. 2 measurements.
Observations:
C8 at 104x. Use averted vision to pick up C. Bright, rich field.
- 17 -
Colors
W
bW
W
Zone 77
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.3 inches.
Separation: AB = 6.15 miles; AC = 22.7 miles.
Distance (LY): 343
Total luminosity (Suns): 6.4
A. G. 388
ADS 12749; HD 234949
Rating: 4 E
Position: 1938+5211
A
B
Magnitude
9.61
9.83
Separation PA
—
—
8.1 +
185 +
Year
—
1993
Spectra
G0
G0
Colors
W
W
Notes:
1899: 7.9 @ 184. 15 measurements. The stars share common proper motion.
Observations:
C8 at 104x. Very, very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.5 inches; B = 18.7 inches.
Separation: AB = 5,122 feet.
Distance (LY): 77
Total luminosity (Suns): 0.123
Guillaume 27
Espin 657 (B)ADS 12826
Rating: 4 E
Position: 1942+5319
A
B
C
Magnitude
10.32
11.40
10.43
Separation
—
3.0 +
83.2 -
PA
—
115 +
112 -
Notes:
AB 1908: 2.7 @ 114. 3 measurements.
AC 1899: 83.2 @ 114. 6 measurements.
- 18 -
Year
—
1982
1991
Spectra
Colors
W
O
W
Zone 77
Observations:
C11 at 193x.
Espin 794
ADS 12821; HD 234976; SAO 31903
Rating: 4 E
Position: 1942+5201
A
B
Magnitude
9.18
9.91
Separation PA
—
—
45.0 +
257 -
Year
—
1991
Spectra
K7
K5
Colors
O
B
Notes:
1899: 42.5 @ 260. 8 measurements.
B has a 13.8m companion at 8.3 @ 120 (1909).
The stars have different proper motions.
Observations:
C8 at 104x. It lies in the midst of a cascade of stars running NE to SW.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 37.3 inches; B = 38.2 inches.
Separation: AB = 55.4 miles.
Distance (LY): 760
Total luminosity (Suns): 15
Stein 2478
Rating: 4 E
Position: 1956+5427
A
B
Magnitude
10.85
11.35
Separation PA
—
—
14.8 150 +
Notes:
1909: 14.9 @ 141. 5 measurements.
Observations:
C11 at 115x. Nice field.
- 19 -
Year
—
1991
Spectra
Colors
W
W
Zone 77
h1411
Rating: 5 E
Position: 1930+5404
A
B
Magnitude
10.42
11.04
Separation PA
—
—
13.1 98 +
Year
—
1991
Spectra
Colors
W
W
Notes:
1901: 13.4 @ 93. 5 measurements.
This system may be optical as Hipparcos shows different distances (72 and 97 light
years).
Observations:
C11 at 115x. This pair lies 5 min N of a 9m star.
A 1401
ADS 12768; HD 234956; SAO 31862
Rating: 5 E
Position: 1939+5337
A
B
Magnitude
9.71
11.50
Separation PA
—
—
3.9 +
179 +
Year
—
1983
Spectra
F2
Notes:
1906: 3.5 @ 178. 4 measurements.
Observations:
C11 at 193x. This pair lies in a nice little 5-star chain that runs N-S.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.9 inches.
Separation: AB = 2,851 feet.
Distance (LY): 90
Total luminosity (Suns): 0.10
- 20 -
Colors
W
Y
Zone 77
Moderate
Espin 984
ADS 12393; HD 234879; SAO 31612
Rating: 5 M
Position: 1923+5336
A
B
C
Magnitude
8.97
13.00
13.50
Separation
—
31.2
5.8
PA
—
92
315
Year
—
1910
1910
Spectra
K2
Colors
Y
?
No
Notes:
AB and AC, 1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 28.4 inches.
Separation: AB = 11.1 miles; AC = 2.06 miles.
Distance (LY): 228
Total luminosity (Suns): 1.1
Espin 129
ADS 12615; HD 234932; SAO 31768
Rating: 5 M
Position: 1933+5249
A
B
C
Magnitude
9.85
10.80
10.00
Separation
—
3.6 +
71.9 +
PA
—
224 273 =
Year
—
1912
1984
Spectra
G0
Notes:
AB 1902: 2.9 @ 225. 4 measurements.
AC 1899: 71.3 @ 273. 6 measurements.
Observations:
C11 at 193x. This system is the N vertext of a small 10m triangle.
- 21 -
Colors
Y
W
W
Zone 77
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.8 inches.
Separation: AB = 1,795 feet; AC = 6.84 miles.
Distance (LY): 61
Total luminosity (Suns): 0.076
Deep Sky Objects
Moderate
NGC 6798
Other Names: IC1300, UGC 11434
Rating: 5 M
Position: 1924+5337
Type : Gal
Surface brightness: 13.5
Class: SO
Dimensions: 1.6' x 0.9'
Magnitude : 13.2
PA: 150
Observations:
C11 at 98x. A 3" diameter fuzzy star with no halo. It forms a very acute triangle with
two 11m stars to the N.
Radial velocity (km/sec): +2,442
- 22 -
Zone 77
Zone 77, Map 5
Double Stars
Easy
OSS 182
ADS 12470; HD 183361; SAO 31661
Rating: 4 E
Position: 1927+5009
A
B
b
Magnitude
7.38
8.56
11.10
Separation
—
72.9 +
35.0+
PA
—
299 152+
Year
—
1991
1990
Spectra
F5 V
A5
Colors
Y
L
?
Notes:
AB 1874: 71.8 @ 307. 26 measurements. Hipparcos/Tycho data show different
distances for these stars (259 and 8,150 light years); they may be optical. The stars have
different proper motions.
Ab 1904: 31.7 @ 139. 3 measurements.
Observations:
C8 at 83x. Rich field.
OS 374 rej
ADS 12563; HD 184241; SAO 31729
Rating: 4 E
Position: 1931+5012
A
B
Magnitude
7.53
11.10
Separation PA
—
—
19.6 +
292 -
Year
—
1987
Spectra
K0
Notes:
1843: 18.4 @ 302. 11 measurements.
Observations:
C8 at 83x. It forms the SW vertex of a triangle with 8m and 5m stars.
C8 at 104x. yO and bW. Nice, bright field.
- 23 -
Colors
Y
V
Zone 77
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 23.6 inches.
Separation: AB = 22.5 miles.
Distance (LY): 800
Total luminosity (Suns): 52
h1418
Rating: 4 E
Position: 1934+5002
A
B
Magnitude
9.27
12.04
Separation PA
—
—
29.0 +
11 +
Year
—
1957
Spectra
Colors
yW
rO?
Notes:
1899: 28.4 @ 10. 9 measurements.
The stars share common proper motion.
Observations:
C8 at 104x.
h1428
HD 185657; SAO 48673
Rating: 4 E
Position: 1938+4917
A
B
C
D
BD
Magnitude
6.47
10.09
10.83
11.90
Separation
—
34.2 +!
63.3 +!
PA
—
235 246 -
Year
—
1999
1999
10.4 -
274 -
1999
Spectra
G6 V
Colors
yO
W
W
?
Notes:
AB 1905: 24.7 @ 258. 11 measurements. 1951.524: in Hipparcos Catalog, B
component is HIP 96569: there is no such star in the position of HIP 96569 in the
digitized sky survey plates. So, the measure of 1991 (realized from Hipparcos) and
included in WDS database probably is not valid. B magnitude uncertain.
AC 1899: 54.8 @ 258. 11 measurements. Hipparcos shows the C star to be at a
distance of 29 light years.
- 24 -
Zone 77
BD 1951: 11.0 @ 279. 6 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 = 3.00 inches.
Separation: AB = 26.7 miles; AC = 49.3 miles; BD = 8.11 miles.
Distance (LY): 500
Total luminosity (Suns): 54.338
Espin 793
ADS 12655
Rating: 5 E
Position: 1935+5046
A
B
Magnitude
10.39
10.78
Separation PA
—
—
44.9 +
246 -
Year
—
1984
Spectra
Colors
W
W?
Notes:
AB 1899: 43.9 @ 248. 4 measurements.
There are two more very faint comes.
Observations:
C8 at 104x. A "bar" of faint stars about 5 min long (running E-W) lies 12 min S.
Distance (LY): 64
Total luminosity (Suns): 0.04
Theta Cyg
Rating: 5 E
113 Cyg; Bur 1131; OS 591; ADS 12695; HD 185395; SAO 31815
Position: 1936+5013
A
B
Magnitude
4.48
10.60
Separation PA
—
—
48.4 +! 182 -
- 25 -
Year
—
1923
Spectra
F4 V
Colors
W
W?
Zone 77
Notes:
1852: 29.9 @ 186. The primary is an infra-red source. The B star is optical.
Observations:
C8 at 104x. Rich field.
Distance (LY): 61
Total luminosity (Suns): 4.66
Zone 77, Map 6
Double Stars
Easy
OSS 187
HD 185116; SAO 48622
Rating: 3 E
Position: 1936+4626
A
B
C
D
Magnitude
8.21
9.14
9.01
12.78
Separation
—
65.7 +
127.2 60.6
PA
—
289 +
255 =
Year
—
1994
1994
141
Spectra
B9 III
Colors
W
W
W
1988
Notes:
AB 1875: 63.4 @ 287. 16 measurements. Hipparcos/Tycho data show different
distances for these stars (1,050 and 142 light years); they may be optical. However, the
stars exhibit common proper motion.
AC 1875: 129.30 @ 255. 9 measurements.
AD 1988: 60.6 @ 141. 1 measurement.
Observations:
C8 at 104x.
- 26 -
Zone 77
OS 372
ADS 12397; HD 182614; SAO 48391
Rating: 4 E
Position: 1923+4711
A
B
C
BC
Magnitude
7.90
9.96
11.50
Separation PA
—
—
77.9 55 3.0
Year
—
1991
1843
Spectra
A0 V
G0
Colors
W
B
No
298
Notes:
AB 1849: 79.4 @ 57. 17 measurements. Hipparcos/Tycho data show different
distances for these stars (880 and 1,920 light years); they may be optical. However, the
stars show similar proper motion.
BC 1 measurement.
Observations:
C8 at 104x.
h1404
ADS 12513
Rating: 4 E
Position: 1929+4617
A
B
C
Magnitude
9.73
10.30
13.80
Separation
—
5.4 17.7
PA
—
126 247
Year
—
1909
1909
Notes:
AB 1893: 6.2 @ 130. 3 measurements.
AC 1 measurement.
Observations:
C11 at 115x. This system forms a vertex of a parallelogram.
Distance (LY): 210
Total luminosity (Suns): 0.71
- 27 -
Spectra
Colors
W
O
?
Zone 77
h1427
Espin 656
Rating: 4 E
Position: 1937+4618
A
B
C
Magnitude
10.08
10.70
11.42
Separation
—
8.8 +
39.1
PA
—
288 +
293
Year
—
1911
1908
Spectra
Colors
W
No
W?
Notes:
AB 1908: 8.3 @ 287. 2 measurements.
AC 1 measurement.
Observations:
C8 at 104x. The extremely rich field is the nice open cluster NGC 6811, the so-called
"Hole In A Cluster". This pair is on the S edge of the cluster and below its center.
Espin 1163
ADS 12402
Rating: 5 E
Position: 1923+4738
A
B
C
Magnitude
10.81
11.20
12.22
Separation
—
1.9 26.3
PA
—
125 +
233
Year
—
1995
1912
Notes:
AB 1912: 2.5 @ 120. 3 measurements.
AC 1 measurement.
Observations:
C8 at 104x.
Distance (LY): 74
Total luminosity (Suns): 0.026
- 28 -
Spectra
Colors
W
No
W
Zone 77
Moderate
A 714
ADS 12592; SAO 48567
Rating: 3 M
Position: 1933+4603
A
B
Magnitude
9.57
9.91
Separation PA
—
—
1.5 =
357 +
Year
—
1999
Spectra
G0
Colors
Y
Y
Notes:
1904: 1.5 @ 328. 26 measurements.
Observations:
C11 at 339x. This star is the NW vertex of a small triangle.
Deep Sky Objects
Easy
NGC 6811
Other Names: Melotte 222; Collinder 402; Raab 138
Rating: 2 E
Position: 1938+4634
Type : Oc
Dimensions: 12'
Class: III 1r
Cluster population: 70
Magnitude : 9.0
Notes:
It is 630 million years old. The earliest spectral type is A0. 249 stars belong to this
group, and it lies 27,000 light years from the galactic center and 725 light years above the
galactic plane.
The brightest star is 9.9m.
Observations:
C8 at 65x. Rich, with a nice triplet to the W.
- 29 -
Zone 77
C11 at 115x. Very dense, tight knot of faint stars with an almost nebulous
background. The NW section hosts a small triangle. It fills the field of view at 193x, and
the center is remarkably sparse.
Walter Scott Houston names this "Hole in a Cluster".
Model (where the Sun is a baseball):
Its diameter would be 3,260 miles. Its stars would be 390 miles apart
Distance (LY): 3,960
Luminosity (suns): 310
Zone 77, Map 7
Double Stars
Easy
Argelander 35
ADS 13197; HD 189572
Rating: 3 E
Position: 1958+5356
A
B
Magnitude
8.02
8.57
Separation PA
—
—
7.4 =
226 =
Year
—
1991
Notes:
1901: 7.4 @ 226. 13 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.4 inches.
Separation: AB = 5.43 miles.
Distance (LY): 471
Total luminosity (Suns): 6
- 30 -
Spectra
G5
Colors
Y
yW
Zone 77
STF 2598
ADS 13018; HD 187979; SAO 32037
Rating: 4 E
Position: 1950+5439
A
B
Magnitude
8.03
10.48
Separation PA
—
—
11.9 +
150 +
Year
—
1993
Spectra
K5
Colors
O
B
Notes:
1832: 10.9 @ 148. 10 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 34.4 inches.
Separation: AB = 19.7 miles.
Distance (LY): 1,060
Total luminosity (Suns): 106
Espin 2683
ADS 13053
Rating: 4 E
Position: 1952+5339
A
B
Magnitude
10.11
10.32
Separation PA
—
—
10.0 320 +
Year
—
1991
Notes:
1901: 10.1 @ 319. 8 measurements.
Observations:
C11 at 115x. It is flanked by two 9m stars (N and S).
Distance (LY): 530
Total luminosity (Suns): 3.62
- 31 -
Spectra
Colors
W
W
Zone 77
Stein 2450
HD 234981; SAO 31915
Rating: 5 E
Position: 1943+5419
A
B
Magnitude
9.55
11.70
Separation PA
—
—
13.6
129
Year
—
1917
Spectra
K0
Colors
Y
O
Notes:
1 measurement.
Observations:
C11 at 115x.
Moderate
Psi Cyg
24 Cyg; STF 2605; ADS 13148; HD 185734
Rating: 2 M
Position: 1956+5226
A
B
C
D
Magnitude
4.91
7.47
13.60
10.20
Separation
—
2.9 21.3 +
165.4 +
PA
—
176 55 =
61 -
Year
—
1998
1958
1908
Spectra
A4 Vn/IV
Notes:
AB 1822: 3.6 @ 187. 94 measurements.
AC 1908: 18.8 @ 55. 3 measurements.
AD 1880: 163.2 @ 62. 2 measurements.
There is a companion to A at 0.1 @ 99.
Observations:
C8 at 280x, 516x..
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.80 inches.
Separation: AB = 1.30 miles; AC = 9.60 miles; AD = 74.5 miles.
Distance (LY): 289
Total luminosity (Suns): 78
- 32 -
Colors
W
L
?
W?
Zone 77
Zone 77, Map 8
Double Stars
Easy
16 Cyg
SI 46; ADS 12815; HD 186408; SAO 31898
Rating: 2 E
Position: 1942+5031
A
B
Magnitude
5.99
6.25
Separation PA
—
—
39.9 +
133 -
Year
—
1995
Spectra
G1 V
G2 V
Colors
W
W
Notes:
1822: 37.3 @ 136. Over 100 measurements. A premature orbit has been computed.
16 B may be accompanied by a planet about 1.55 times Jupiter's mass and in an orbit
that takes 804 days. (Its semi-major axis would be about 1.7 AU, with an eccentricity of
0.67.)
A is about 1.56 times as bright as the Sun; B is 1.21. The mass of A is 0.99 Suns,
while B weighs in at 0.96. A is probably about 1.25 Solar diameters in size while B is
1.15.
The stars share a large common proper motion.
Observations:
C8 at 104x. Very, very rich field! Penny Fischer (NJ, 12.5" Dob) saw them as O and
dB.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.70 inches; B = 15.8 inches.
Separation: AB = 4.42 miles.
Distance (LY): 71
Total luminosity (Suns): 2.28
See sketch, next page.
- 33 -
Zone 77
16 Cyg (ΣI 46)
Double star; W, W; 6.0 / 6.3; 40” @ 133
Observed with C8 on 9/14/95
Magnification: 62x
A. G. 239
ADS 12968; HD 187522; SAO 32003
Rating: 3 E
Position: 1948+5154
A
B
Magnitude
8.52
9.71
Separation PA
—
—
15.5 +
242 -
Year
—
1991
Spectra
G5
Colors
yW
B
Notes:
1902: 13.8 @ 259. 9 measurements. The stars have different proper motions and
Hipparcos gives different distances (600 and 134 light years).
Observations:
C8 at 104x. Moderate field.
- 34 -
Zone 77
Argelander 87
Rating: 4 E
Position: 1954+4939
A
B
Magnitude
10.57
10.75
Separation PA
—
—
14.7 271 +
Year
—
1991
Spectra
F8
Colors
W
W
Notes:
1908: 15.2 @ 270. 2 measurements.
This system may be optical as Hipparcos shows different distances (80 and 1,920 light
years).
Observations:
C11 at 115x.
Espin 2686
ADS 13100; HD 188649; SAO 48959
Rating: 4 E
Position: 1954+4915
A
B
Magnitude
7.83
11.00
Separation PA
—
—
16.9
305
Year
—
1911
Notes:
1 measurement.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.0 inches.
Separation: AB = 38.5 miles.
Distance (LY): 1,460
Total luminosity (Suns): 137
- 35 -
Spectra
K0
Colors
yO
B?
Zone 77
Deep Sky Objects
NGC 6826
Rating: 1 E
Other Names: PK 83+12.1; The Blinking Planetary, H IV 73
Astronomical League Program: Caldwell Club, Herschel 400 Club, Urban Deep Sky
Club
Position: 1945+5031
Type : Pn
Dimensions: 24" x 27"
Class: 3a
Magnitude : 8.8
Notes:
William Herschel discovered it in 1793.
Observations:
C8 at 206x. There is a hint of a ring; the central star is 11m. If you look directly at it,
you'll notice the central star,
but when you look aside, the
nebula pops into view—
hence the nickname. Nearby
lie two bright stars that are
very even and close together
(16 Cyg, 5m and 26 min W),
named "the headlights" by
Barbara Wilson.
C11 at 115x. Blue disk,
central star visible. Good
blinker. At 193x, does not
blink as well. At 339x with
the O-III filter, the blink
totally goes away.
Model (where the Sun is a
baseball):
Its diameter would be 139
miles.
Distance (LY): 3,300
Luminosity (suns): 260
NGC 6826
Planetary nebula
Observed with C11 on 7/24/03
Magnification: 98x + O-III
- 36 -
Zone 77
Moderate
UGC 11465
Rating: 4 M
Position: 1942+5038
Type : Gal
Surface brightness: 12.8
Class: S(B)0
Dimensions: 1.3' x 1.3'
Magnitude : 12.7
Observations:
C8 at 206x. Use high powers to get the 6m double to the S out of the field. With
averted vision, it showed a disk with a very slightly brighter center.
Zone 77, Map 9
Double Stars
Easy
A. G. 240
HD 187877
Rating: 3 E
Position: 1950+4748
A
B
Magnitude
9.53
9.66
Separation PA
—
—
14.6 =
256 =
Year
—
1918
Spectra
A2
Colors
W
W
Notes:
1900: 14.6 @ 256. 5 measurements.
This system may be optical as Hipparcos shows different distances (800 and 97 light
years).
Observations:
C11 at 115x.
- 37 -
Zone 77
STF 2611
ADS 13209; HD 189636; SAO 49052
Rating: 3 E
Position: 1959+4721
A
B
Magnitude
7.63
7.64
Separation PA
—
—
5.3 +
27 +
Year
—
1996
Spectra
K0
Colors
W
W
Notes:
1831: 5.1 @ 206. 67 measurements.
Observations:
C8 at 83x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 23.7 inches.
Separation: AB = 13.6 miles.
Distance (LY): 1,640
Total luminosity (Suns): 293
Argelander 86
Espin 2681SAO 48809
Rating: 4 E
Position: 1946+4622
A
B
Magnitude
9.35
10.67
Separation PA
—
—
26.7 312 -
Year
—
1991
Notes:
1893: 27.5 @ 316. 5 measurements.
Observations:
C8 at 104x. A 7.0m star 10 min N is a good reference.
Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 26.3 inches.
Separation: AB = 2,640 feet.
Distance (LY): 12
Total luminosity (Suns): 0.003
- 38 -
Spectra
K0
Colors
W
B!
Zone 77
Kustner 125
HD 188254; SAO 48922
Rating: 4 E
Position: 1952+4545
A
B
Magnitude
9.52
10.06
Separation PA
—
—
54.4 +
265 -
Year
—
1991
Spectra
K0
Colors
Y
Y
Notes:
1892: 52.9 @ 266. 9 measurements.
Observations:
C8 at 104x.
Moderate
OSS 190
ADS 12849; HD 186618; SAO 48768
Rating: 4 M
Position: 1943+4715
A
B
C
Magnitude
7.75
12.50
9.77
Separation
—
11.7 +
66.9 -
PA
—
299 317 =
Year
—
1901
1998
Spectra
B0 V
Colors
W
?
B
Notes:
AB 1878: 11.6 @ 300. 2 measurements.
AC 1875: 67.7 @ 317. 16 measurements.
Hipparcos/Tycho data show different distances for these stars (A: 4,900 and C: 580
light years); they may be optical. The stars have a small difference in proper motion.
Observations:
C8 at 104x. This triple is situated in a nice, faint field.
- 39 -
Zone 77
Espin 23
ADS 13010; HD 187810; SAO 48880
Rating: 4 M
Position: 1950+4509
A
B
C
Magnitude
8.11
12.41
10.01
Separation
—
8.5 +
30.9 +
PA
—
137 326 -
Year
—
1991
1991
Spectra
K0
K2
Colors
Y
?
W
Notes:
AB 1892: 7.7 @ 139. 8 measurements.
AC 1892: 30.6 @ 328. 12 measurements.
May be optical because Hipparcos gives different distances (1,270 and 1,780 light
years).
Observations:
C8 at 104x. This trio forms the NE vertex of a large triangle, with 8.2m SAO 48863
(SW) and 9.0m 48865 (WSW). Averted vision is needed to see B.
Very rich field to the S.
Difficult
Delta Cyg
18 Cyg; STF 2579; ADS 12880; HD 186882; SAO 48796
Rating: 5 D
Position: 1945+4508
A
B
C
Magnitude
2.86
6.59
11.90
Separation
—
2.4 +
65.7 -
PA
—
226 +?
66 =
Year
—
1999
1960
Spectra
B9 IV
Colors
W
B
?
Notes:
The pair was discovered by William Herschel in 1783.
AB 1826: 1.9 @ 41. Over 100 measurements. The orbit takes 827.6 years (Baize,
1973), with a semi-major axis of 3.0" and retrograde motion. Quadrant reversal?
AC 1913: 68.2 @ 66. 2 measurements. Espin discovered this pair.
Star A is a spectroscopic binary that rotates at 149 kps. It is also an infra-red source.
- 40 -
Zone 77
Observations:
C8 at 206x. Webb saw them as G and W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.0 inches.
Separation: AB = 3,379 feet; AC = 17.5 miles.
Distance (LY): 171
Total luminosity (Suns): 168.04
- 41 -
Zone 77
Zone 77 Mini-Catalog
Designation
Position
Rating
Map
STF 2486
1912+4951
1E
2
Holmes 25
1932+5259
2E
4
16 Cyg
1942+5031
2E
8
STF 2450
1902+5215
3E
1
h1380
1913+4746
3E
3
h1382
1918+4806
3E
3
STF 2511 rej
1920+5020
3E
2
OSS 187
1936+4626
3E
6
A. G. 239
1948+5154
3E
8
A. G. 240
1950+4748
3E
9
Argelander 35
1958+5356
3E
7
STF 2611
1959+4721
3E
9
STF 2463
1906+4549
4E
3
Smart 85
1913+4945
4E
2
A 1394
1920+5333
4E
1
OS 372
1923+4711
4E
6
Espin 653
1926+5409
4E
4
OSS 182
1927+5009
4E
5
h1404
1929+4617
4E
6
OS 374 rej
1931+5012
4E
5
Component
A
B
C
D
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
C
D
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
C
A
B
C
A
B
A
B
b
A
B
C
A
B
- 42 -
Mag
5.85
6.00
13.30
11.40
8.86
9.64
5.99
6.25
6.35
9.68
9.32
9.92
8.09
9.60
7.30
11.10
10.17
8.21
9.14
9.01
12.78
8.52
9.71
9.53
9.66
8.02
8.57
7.63
7.64
8.90
10.60
12.50
9.04
10.01
9.44
12.70
10.21
7.90
9.96
11.50
10.37
10.53
7.38
8.56
11.10
9.73
10.30
13.80
7.53
11.10
Separation
—
7.5 22.5 -!!
173.1 +
—
11.6 —
39.9 +
—
5.4 +
—
5.3 +
—
7.7 —
8.3 77.7 —
65.7 +
127.2 60.6
—
15.5 +
—
14.6 =
—
7.4 =
—
5.3 +
—
9.7 +
23.9 +
—
31.2 —
2.4 +
54.4 +
—
77.9 BC 3.0
—
12.1 =
—
72.9 +
35.0+
—
5.4 17.7
—
19.6 +
PA
—
207 22.5 -!!
173.1 +
—
254 —
133 —
299 —
228 +
—
312 +
—
48 +
77.7 —
289 +
127.2 60.6
—
242 —
256 =
—
226 =
—
27 +
—
023.9 +
—
211 +
—
356 =?
54.4 +
—
55 BC 298
—
106 =
—
299 152+
—
126 17.7
—
292 -
Zone 77
Designation
Position
Rating
Map
STF 2542
1932+5300
4E
4
h1418
1934+5002
4E
5
h1427
1937+4618
4E
6
A. G. 388
1938+5211
4E
4
h1428
1938+4917
4E
5
Guillaume 27
1942+5319
4E
4
Espin 794
1942+5201
4E
4
Argelander 86
1946+4622
4E
9
STF 2598
1950+5439
4E
7
Kustner 125
1952+4545
4E
9
Espin 2683
1952+5339
4E
7
Argelander 87
1954+4939
4E
8
Espin 2686
1954+4915
4E
8
Stein 2478
1956+5427
4E
4
Espin 983
1922+5245
5E
1
Espin 1163
1923+4738
5E
6
h1411
1930+5404
5E
4
Espin 793
1935+5046
5E
5
Theta Cyg
1936+5013
5E
5
A 1401
1939+5337
5E
4
Stein 2450
1943+5419
5E
7
A 706
1915+4756
2M
3
Component
A
B
C
A
B
A
B
C
A
B
A
B
C
D
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
- 43 -
Mag
8.40
9.20
10.90
9.27
12.04
10.08
10.70
11.42
9.61
9.83
6.47
10.09
10.83
11.90
10.32
11.40
10.43
9.18
9.91
9.35
10.67
8.03
10.48
9.52
10.06
10.11
10.32
10.57
10.75
7.83
11.00
10.85
11.35
10.61
11.40
11.88
10.81
11.20
12.22
10.42
11.04
10.39
10.78
4.48
10.60
9.71
11.50
9.55
11.70
9.49
9.62
Separation
—
11.5 +
42.5 —
29.0 +
—
8.8 +
39.1
—
8.1 +
—
34.2 +!
63.3 +!
BD 10.4 —
3.0 +
83.2 —
45.0 +
—
26.7 —
11.9 +
—
54.4 +
—
10.0 —
14.7 —
16.9
—
14.8 —
2.6 22.6 —
1.9 26.3
—
13.1 —
44.9 +
—
48.4 +!
—
3.9 +
—
13.6
—
1.5 +
PA
—
253 42.5 —
11 +
—
288 +
39.1
—
185 +
—
235 63.3 +!
BD 274 —
115 +
83.2 —
257 —
312 —
150 +
—
265 —
320 +
—
271 +
—
305
—
150 +
—
212 +
22.6 —
125 +
26.3
—
98 +
—
246 —
182 —
179 +
—
129
—
254 +
Zone 77
Designation
Position
Rating
Map
Psi Cyg
1956+5226
2M
7
A 714
1933+4603
3M
6
OSS 190
1943+4715
4M
9
Espin 23
1950+4509
4M
9
Espin 651
1900+5207
5M
1
16 Lyr
1901+4656
5M
3
Bemporad 37
1901+5328
5M
1
Espin 979
1908+5057
5M
2
h1377
1912+4722
5M
3
Espin 1095
1919+4951
5M
2
Espin 984
1923+5336
5M
4
Espin 129
1933+5249
5M
4
STF 2451
1903+5135
3D
2
STF 2496
1915+5004
3D
2
STF 2555
1936+5322
3D
4
Espin 2673
1905+4955
5D
2
Delta Cyg
1945+4508
5D
9
Component
A
B
C
D
A
B
A
B
C
A
B
C
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
C
A
B
C
A
B
A
B
C
A
B
A
B
A
B
C
- 44 -
Mag
4.91
7.47
13.60
10.20
9.57
9.91
7.75
12.50
9.77
8.11
12.41
10.01
10.77
11.20
5.00
10.50
10.69
11.53
9.69
11.40
11.60
6.54
12.60
8.78
12.65
8.97
13.00
13.50
9.85
10.80
10.00
9.42
9.54
6.49
10.10
10.00
9.42
9.80
6.45
11.90
2.86
6.59
11.90
Separation
—
2.9 21.3 +
165.4 +
—
1.5 =
—
11.7 +
66.9 —
8.5 +
30.9 +
—
5.4
—
44
—
10.4 +
—
6.9
19.3 —
36.2 =
—
6.7 +
—
31.2
5.8
—
3.6 +
71.9 +
—
2.0 —
2.1 +
185.7 +
—
1.8 =
—
12.3
—
2.4 +
65.7 -
PA
—
176 21.3 +
165.4 +
—
357 +
—
299 66.9 —
137 30.9 +
—
137
—
281
—
284 +
—
196
19.3 —
357 =
—
134 =
—
92
5.8
—
224 71.9 +
—
81 +
—
80 +
185.7 +
—
283 +
—
130
—
226 +?
65.7 -
Zone 77
Deep Sky Objects
Object
NGC 6826
NGC 6811
NGC 6764
UGC 11465
NGC 6798
Position
1945+5031
1938+4634
1908+5055
1942+5038
1924+5337
Rating
1E
2E
3M
4M
5M
Map
8
6
2
8
4
Type
Pn (3a)
Oc (III 1r)
Gal (SB(s)bc)
Gal (S(B)0)
Gal (SO)
- 45 -
Specifications
Surface
Mag
Br
8.8
9.0
11.9
12.8
12.7
12.8
13.2
13.5
Population
70