Zone 101, Master Map
Normal View
Zone Master, Normal View, 10 deg FOV
+44°00'
δ
Cygnus
h
+40°00'
+42°00'
c
Foxhead
j
η
d
e
+38°00'
i
Crescent Nebula
θ
l
g
f
ι
η
20h 00m
19h 48m
19h 36m
19h 24m
19h 12m
Lyra
+36°00'
k
δ1
δ2
19h 00m
Zone 101, Map 1
Normal Image
STF 2507
STF 3130
A 587
Cygnus
Lyra
+44°00'
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 1429
NGC 6792
A 594
+43°00'
h1358
+42°00'
Espin 1562
h2857
+41°00'
Espin 1663
h1391
h1370
STF 2431
STF 2453
Ali 1110
Hipparcos 2770
19h 30m
19h 24m
19h 18m
19h 12m
19h 06m
19h 00m
Zone 101, Map 1
Mirror Image
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+44°00'
STF 2507
STF 3130
A 587
Cygnus
+43°00'
Lyra
h1358
Espin 1429
NGC 6792
A 594
+42°00'
Espin 1562
h2857
Hough 270
+41°00'
Espin 1663
h1391
h1370
STF 2431
STF 2453
Ali 1110
19h 00m
19h 06m
19h 12m
19h 18m
19h 24m
Hipparcos 2770
19h 30m
Zone 101, Map 2
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+40°00'
STF 2431
STF 2453
Ali 1110
Scheiner 584
η
Eta Lyr
Holmes 19
Sh 289
+39°00'
STF 3131
STF 2469
Espin 2035
STF 2481
STF 2456
A. G. 377
Scheiner 585
STF 2427
Espin 2672
Theta Lyr
+38°00'
θ
A. G. 227
NGC 6791
STF 2472
A 152
19h 18m
19h 12m
Delta 2 Lyr δ2
19h 06m
19h 00m
δ1
18h 54m
Zone 101, Map 2
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2453
Ali 1110
η
Scheiner 584
Eta Lyr
+39°00'
Holmes 19
Sh 289
STF 2469
Espin 2035
+40°00'
STF 2431
STF 2481
STF 2456
A. G. 377
Scheiner 585
Espin 2672
Theta Lyr
θ
+38°00'
STF 2427
A. G. 227
STF 2472
Bur 137
A 152
δ2
18h 54m
Delta 2 Lyr
19h 00m
19h 06m
19h 12m
19h 18m
Zone 101, Map 3
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 2672
Theta Lyr
+38°00'
θ
A. G. 227
NGC 6791
A 152
Delta 2 Lyr δ2
δ1
+37°00'
STF 2472
ι
Espin 2031
H V 103
A 1385
+36°00'
STF 2429
STF 2448
STF 2505
+35°00'
Bur 360
Hertzsprung 13
STF 2470
STF 2474
OS 367 rej
OS 366 rej
19h 18m
19h 12m
19h 06m
19h 00m
Zone 101, Map 3
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Theta Lyr
θ
+38°00'
Espin 2672
A. G. 227
STF 2472
+37°00'
Bur 137
A 152
+36°00'
STF 2429
ι
A 1385
Espin 2031
H V 103
STF 2448
Bur 360
+35°00'
δ2
Delta 2 Lyr
Hertzsprung 13
STF 2470
STF 2474
OS 367 rej
OS 366 rej
19h 00m
19h 06m
19h 12m
19h 18m
Zone 101, Map 4
Normal Image
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 1967
Ali 1110
Hipparcos 2770
Scheiner 584
STF 3131
η
Eta Lyr
Scheiner 625
A 1397
Hough 450
+39°00'
Scheiner 623
Holmes 19
Sh 289
STF 2481
A. G. 377
θ
Scheiner 604
+38°00'
Scheiner 585
Theta Lyr
NGC 6791
Lyra
19h 36m
STF 2538
19h 30m
h1395
A 152
Espin 2179
19h 24m
19h 18m
19h 12m
Zone 101, Map 4
Mirror Image
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Ali 1110
Hipparcos 2770
Holmes 19
η
Scheiner 584
Eta Lyr
STF 3131
Sh 289
Scheiner 625
A 1397
Hough 450
STF 2481
+39°00'
Scheiner 623
Theta Lyr
θ
Scheiner 604
STF 2472
NGC 6791
+38°00'
A. G. 377
Scheiner 585
h1395
A 152
Lyra
Espin 2179
19h 12m
19h 18m
19h 24m
19h 30m
19h 36m
Zone 101, Map 5
Normal Image
θ
Scheiner 604
+38°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Theta Lyr
Lyra
h1395
A 152
Espin 2179
+37°00'
NGC 6791
STF 2538
STF 2534
A. G. 234
Scheiner 630
Scheiner 605
Scheiner 611
+36°00'
h1414
Bur 1286
STF 2505
Hussey 1194
A. G. 232
+35°00'
Bur 360
Popovic 95
Scheiner 608
Scheiner 596
Scheiner 597
Scheiner 599
OS 367 rej
Hussey 946
Scheiner 598
OS 366 rej
19h 30m
19h 24m
19h 18m
19h 12m
Zone 101, Map 5
Mirror Image
Theta Lyr
θ
+38°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Scheiner 604
STF 2472
+37°00'
NGC 6791
h1395
A 152
Lyra
Espin 2179
STF 2538
Scheiner 605
Bur 1286
h1414
Scheiner 611
+36°00'
STF 2534
STF 2505
Hussey 1194
Popovic 95
Scheiner 596
STF 2470
Scheiner 597
Scheiner 599
STF 2474
OS 367 rej
+35°00'
Bur 360
Scheiner 608
Hussey 946
Scheiner 598
OS 366 rej
19h 12m
19h 18m
19h 24m
19h 30m
Zone 101, Map 6
Normal Image
Espin 23
Espin 1329
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Delta Cygδ
Dawes 13
Smart 109
STF 2588
OS 393
+44°00'
OS 391 rej
NGC 6866
h1472
Lyra
A 594
Roe 40
+43°00'
Espin 490
Espin 1565
+42°00'
STF 2607
Dolidze 36
A 601
Fox 29
+41°00'
Espin 1663
OS 378
OSS 196
OS 383
h1468
h604
Bur 1474
NGC 6819 Foxhead Espin 1968
Bpm 196
Espin 1967
A 1404
20h 00m
19h 54m
19h 48m
19h 42m
19h 36m
Hipparcos 2770
19h 30m
Zone 101, Map 6
Mirror Image
δ
Delta Cyg
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 23
Dawes 13
STF 2588
OS 393
OS 391 rej
h1472
Lyra
+44°00'
Smart 109
+43°00'
Espin 490
A 594
Roe 40
STF 2607
Dolidze 36
+42°00'
Espin 1565
A 601
Fox 29
OS 378
OSS 196
OS 383
h604
NGC 6819
Espin 1968
Espin 1967
Bur 1474
Foxhead
Bpm 196
A 1404
19h 30m
19h 36m
19h 42m
19h 48m
19h 54m
20h 00m
h1468
+41°00'
Espin 1663
Zone 101, Map 7
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Foxhead
Espin 1968
NGC 6819
+40°00'
Bpm 196
Espin 1967
A 1404
Hipparcos 2770
Espin 1969
Scheiner 625
A 1397
A 1402
Espin 84
+39°00'
Scheiner 623
Hough 450
Scheiner 666
Scheiner 658
Scheiner 685
Scheiner 680
OS 384
+38°00'
Scheiner 604
OSS 188
Scheiner 659
OS 386
Lyra
h1395
Espin 2179
Scheiner 698
19h 48m
19h 42m
19h 36m
19h 30m
19h 24m
Zone 101, Map 7
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+40°00'
Foxhead
Espin 1968 NGC 6819
Espin 1967
Bpm 196
A 1404
Hipparcos 2770
Espin 1969
Scheiner 625
A 1397
Hough 450
+39°00'
Scheiner 623
A 1402
Espin 84
Scheiner 666
Scheiner 658
Scheiner 685
Scheiner 680
+38°00'
OS 384
Scheiner 604
OSS 188
Scheiner 659
OS 386
h1395
Lyra
Espin 2179
19h 24m
19h 30m
19h 36m
19h 42m
19h 48m
Zone 101, Map 8
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+38°00'
Scheiner 604
OSS 188
OS 386
Lyra
h1395
Espin 2179
Scheiner 698
+37°00'
Scheiner 659
STF 2538
STF 2534
h1414
Scheiner 605
Scheiner 630
STF 2578
OS 377
OS 387
Hussey 1194
A. G. 232
Bur 1473
Scheiner 684
Scheiner 656
H V 137
Popovic 95
A. G. 236
Scheiner 686
Scheiner 608
Scheiner 669
Scheiner 663
Hussey 946
19h 48m
19h 42m
19h 36m
19h 30m
+35°00'
Scheiner 649
Scheiner 647
h1421
Bur 1286
Scheiner 611
Scheiner 650
+36°00'
A. G. 234
Zone 101, Map 8
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+38°00'
Scheiner 604
OSS 188
OS 386
h1395
Lyra
Espin 2179
+37°00'
Scheiner 659
STF 2538
STF 2534
Scheiner 630
h1414
Bur 1286
Scheiner 611
Scheiner 650
OS 377
Hussey 1194
STF 2578
Scheiner 649
Scheiner 647
h1421
OS 387
A. G. 232
Bur 1473
Scheiner 684
Scheiner 656
H V 137
Popovic 95
Scheiner 596
Scheiner 597
Scheiner 599
A. G. 236
Scheiner 608
Scheiner 669
Scheiner 663
Hussey 946
19h 30m
19h 36m
19h 42m
19h 48m
+35°00'
Scheiner 605
+36°00'
A. G. 234
Zone 101, Map 9
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Dolidze-Dzimselejsvili
NGC 6819 Foxhead
Bpm 196
A 1404
Scheiner 718
Bur 1480
Espin 1969
Bpm 201
19 Cyg
Scheiner 735
h1470
Espin 84
Scheiner 666
OS 384
Scheiner 685
Scheiner 680
+38°00'
STF 2609
h1448
Scheiner 711
OSS 188
Bur 1289
Scheiner 786
Scheiner 659
Scheiner 703
OS 386
A. G. 242
Scheiner 726
20h 06m
A 1413
Scheiner 743
20h 00m
A 1402
19h 54m
+40°00'
h604
Bur 1474
h1468
+39°00'
Stone 50
Scheiner 698
19h 48m
19h 42m
Zone 101, Map 9
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h604
Bur 1474
h1468
Foxhead
NGC 6819
+40°00'
Espin 1968
Bpm 196
+39°00'
A 1404
Scheiner 718
A 1402
Espin 1969
19 Cyg
Scheiner 666
Bpm 201
Espin 84
Scheiner 735
Scheiner 658
OS 384
h1470
Scheiner 685
Scheiner 680
+38°00'
STF 2609
h1448
Scheiner 711
OSS 188
Bur 1289
Scheiner 786
Scheiner 659
Scheiner 703
OS 386
A. G. 242
Scheiner 726
Scheiner 698
19h 42m
19h 48m
Scheiner 743
19h 54m
20h 00m
20h 06m
Zone 101, Map 10
Normal Image
STF 2609
+38°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h1448
Scheiner 711
OSS 188
Bur 1289
Scheiner 786
Scheiner 659
Scheiner 703
+37°00'
OS 386
A. G. 242
Scheiner 726
Scheiner 743
A 1413
Scheiner 698
Webb 9
Scheiner 830
+36°00'
OS 394
STF 2578
STF 2624
Scheiner 770
STF 2610
η
Bur 1473
Scheiner 684
+35°00'
OS 387
Scheiner 689
Espin 202
Eta Cyg
H V 137
A. G. 236
Scheiner 686
Scheiner 669
Scheiner 663
Scheiner 834
20h 00m
19h 54m
19h 48m
19h 42m
Zone 101, Map 10
Mirror Image
+38°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2609
h1448
Scheiner 711
OSS 188
Bur 1289
Scheiner 786
Scheiner 659
Scheiner 703
+37°00'
OS 386
A. G. 242
Scheiner 726
Scheiner 698
Scheiner 743
Webb 9
STF 2578
STF 2624
Scheiner 770
+36°00'
OS 394
STF 2610
Scheiner 656
Espin 202
+35°00'
Scheiner 689
OS 387
Bur 1473
Scheiner 684
Eta Cyg η
H V 137
A. G. 236
Scheiner 686
Scheiner 663
Scheiner 669
19h 42m
19h 48m
19h 54m
20h 00m
Zone 101
Index
106 Double Stars, 2 Open Clusters, 1 Galaxy
Flamsteed
Espin 1967 ................................................ 36
Espin 1968 ................................................ 38
Espin 1969 ................................................ 38
Espin 2035 ................................................ 16
Espin 2179 ................................................ 26
Espin 2672 ................................................ 10
Espin 490 .................................................. 29
Espin 84 .................................................... 54
Eta Cyg...................................................... 62
Eta Lyr ........................................................ 9
19 Cyg....................................................... 53
A
A 1397....................................................... 40
A 1402....................................................... 35
A 1404....................................................... 42
A 152......................................................... 13
A 594........................................................... 3
A 601......................................................... 33
A. G. 227..................................................... 8
A. G. 232................................................... 46
A. G. 234................................................... 47
A. G. 242................................................... 62
A. G. 377................................................... 12
Ali 1110 .................................................... 14
F
Fox 29 ....................................................... 30
H
H V 103..................................................... 19
H V 137..................................................... 45
h1370........................................................... 4
h1391........................................................... 5
h1395......................................................... 21
h1414......................................................... 48
h1421......................................................... 49
h1448......................................................... 53
h2857........................................................... 7
h604........................................................... 54
Hertzsprung 13.......................................... 18
Hipparcos 2770 ......................................... 22
Holmes 19 ................................................. 16
Hough 450................................................. 22
Hussey 1194.............................................. 27
B
Bpm 196.................................................... 39
Bpm 201.................................................... 56
Bur 1286.................................................... 26
Bur 1473.................................................... 50
Bur 1474.................................................... 55
Bur 360...................................................... 25
D
Dawes 13................................................... 31
E
Espin 1429 .................................................. 6
Espin 1562 .................................................. 3
Espin 1565 ................................................ 31
Espin 1663 .................................................. 5
N
NGC 6791 ................................................. 23
-1-
Zone 100
Scheiner 684.............................................. 60
Scheiner 685.............................................. 40
Scheiner 689.............................................. 60
Scheiner 698.............................................. 61
Scheiner 703.............................................. 61
Scheiner 711.............................................. 57
Scheiner 718.............................................. 57
Scheiner 726.............................................. 58
Scheiner 735.............................................. 55
Scheiner 743.............................................. 59
Scheiner 770.............................................. 63
Sh 289 ......................................................... 9
Smart 109 .................................................. 32
STF 2448................................................... 19
STF 2453..................................................... 6
STF 2456................................................... 10
STF 2469................................................... 17
STF 2472................................................... 11
STF 2481................................................... 15
STF 2505................................................... 24
STF 2507..................................................... 4
STF 2534................................................... 24
STF 2538................................................... 46
STF 2578................................................... 47
STF 2588................................................... 28
STF 2607................................................... 32
STF 2609................................................... 56
STF 2610................................................... 59
STF 3131................................................... 20
NGC 6792 ................................................... 8
NGC 6819 ................................................. 43
O
OS 377 ...................................................... 52
OS 378 ...................................................... 34
OS 383 ...................................................... 34
OS 384 ...................................................... 42
OS 386 ...................................................... 63
OS 387 ...................................................... 64
OS 391 rej ................................................. 33
OS 393 ...................................................... 29
OSS 188 .................................................... 36
R
Roe 40 ....................................................... 30
S
Scheiner 584.............................................. 14
Scheiner 585.............................................. 17
Scheiner 604.............................................. 21
Scheiner 605.............................................. 26
Scheiner 611.............................................. 52
Scheiner 623.............................................. 41
Scheiner 625.............................................. 37
Scheiner 630.............................................. 50
Scheiner 647.............................................. 48
Scheiner 649.............................................. 49
Scheiner 650.............................................. 51
Scheiner 656.............................................. 51
Scheiner 658.............................................. 37
Scheiner 659.............................................. 37
Scheiner 666.............................................. 41
Scheiner 680.............................................. 39
T
Theta Lyr................................................... 12
-2-
Zone 100
Zone 101, Map 1
Double Stars
Easy
A 594
ADS 12476
Rating: 3 E
Position: 1927+4305
A
B
Magnitude
9.67
10.31
Separation PA
—
—
2.5 +
330 -
Year
—
1991
Spectra
Colors
W
W
Notes:
1903: 2.3 @ 331. 9 measurements.
Observations:
C11 at 193x. This is the obtuse vertex of a small 10m triangle.
Espin 1562
ADS 12321
Rating: 4 E
Position: 1919+4217
A
B
C
Magnitude
9.27
9.90
12.65
Separation
—
5.6 30.0
PA
—
322 56
Notes:
AB 1916: 5.8 @ 324. 3 measurements.
AC 1 measurement.
Observations:
C8 at 104x.
-3-
Year
—
1948
1916
Spectra
G
Colors
W
O
?
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.8 inches.
Separation: AB = 2.48 miles; AC = 13.2 miles.
Distance (LY): 284
Total luminosity (Suns): 2
STF 2507
ADS 12331; HD 181777; SAO 48338
Rating: 4 E
Position: 1920+4422
A
B
C
Magnitude
8.72
10.88
9.90
Separation
—
24.4 +
27.8 +
PA
—
156 +
146 +
Year
—
1991
1963
Spectra
F8
G5
Colors
W
bW
O
Notes:
AB 1865: 20.1 @ 150. 9 measurements. The stars have different proper motions.
AC 1831: 23.9 @ 137. 12 measurements.
Observations:
C8 at 104x.
h1370
ADS 12082; SAO 48114
Rating: 5 E
Position: 1908+4050
A
B
Magnitude
8.72
12.82
Separation PA
—
—
21.2
301
Notes:
1 measurement.
Observations:
C8 at 104x.
-4-
Year
—
1905
Spectra
K0
Colors
W
W?
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.4 inches.
Separation: AB = 30.1 miles.
Distance (LY): 910
Total luminosity (Suns): 22
h1391
Position: 1923+4059
A
B
Magnitude
9.27
11.18
Rating: 5 E
Separation PA
—
—
19.9
95
Year
—
1909
Spectra
G5
Colors
Y
B
Notes:
1 measurement.
Observations:
C8 at 104x. Faint but rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.9 inches.
Separation: AB = 5.31 miles.
Distance (LY): 171
Total luminosity (Suns): 0.511
Espin 1663
ADS 12468; HD 183281; SAO 48454
Rating: 5 E
Position: 1927+4129
A
B
C
Magnitude
8.69
12.80
11.73
Separation
—
5.9
24.2
PA
—
229
301
Notes:
Both 1 measurement.
Observations:
C8 at 104x.
-5-
Year
—
1917
1917
Spectra
F0
Colors
W
No
?
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.9 inches.
Separation: AB = 4.00 miles; AC = 16.4 miles.
Distance (LY): 435
Total luminosity (Suns): 5.26
Moderate
Espin 1429
ADS 11938
Rating: 4 M
Position: 1901+4313
A
B
C
Magnitude
9.52
11.00
15.70
Separation
—
5.9 +
9.0
PA
—
10 =
76
Year
—
1965
Spectra
Colors
W
O
No
Notes:
AB 1915: 5.5 @ 10. 4 measurements.
AC 1 measurement.
Observations:
C11 at 339x. A nice field lies to the NE.
STF 2453
ADS 12028; SAO 48062
Rating: 4 M
Position: 1905+4007
A
B
Magnitude
8.54
10.92
Separation PA
—
—
13.6 87 -
-6-
Year
—
1991
Spectra
A2
Colors
W
R
Zone 100
Notes:
1829: 15.1 @ 100. 18 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.29 inches.
Separation: AB = 11.9 miles.
Distance (LY): 560
Total luminosity (Suns): 11
h2857
ADS 12142; HD 179506; SAO 48165
Rating: 5 M
Position: 1911+4146
A
B
C
Magnitude
7.91
13.40
12.08
Separation
—
14.4
36.6
PA
—
178
211
Year
—
1907
1907
Notes:
Both 1 measurement.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.25 inches.
Separation: AB = 28.8 miles; AC = 73.1 miles.
Distance (LY): 1,280
Total luminosity (Suns): 100.5
-7-
Spectra
B8
Colors
W
No
?
Zone 100
Deep Sky Objects
Difficult
NGC 6792
Other Names: UGC 11429
Rating: 4 D
Position: 1921+4308
Type: Gal
Surface brightness: 13.0
Class: SBb
Dimensions: 2.4' x 1.3'
Magnitude: 12.1
PA: 25
Observations:
C8 at 206x. It has a very bright, stellar nucleus accompanied by an extremely faint
and difficult halo.
Radial velocity (km/sec): +4,638
Zone 101, Map 2
Double Stars
Easy
A. G. 227
ADS 12031
Rating: 3 E
Position: 1905+3803
A
B
Magnitude
9.43
9.80
Separation PA
—
—
6.7 +
29 +
Notes:
1903: 5.7 @ 8. 26 measurements.
-8-
Year
—
1997
Spectra
Colors
W
W
Zone 100
Observations:
C11 at 115x. Nice field.
Distance (LY): 362
Total luminosity (Suns): 2.97
Sh 289
HD 180077; SAO 68003
Rating: 3 E
Position: 1913+3902
A
B
Magnitude
8.01
8.71
Separation PA
—
—
39.5 56 -
Year
—
1999
Spectra
A0 p
G0
Colors
W
O
Notes:
1879: 39.7 @ 57. 18 measurements. The stars have different proper motions.
Observations:
C8 at 83x. Very bright but moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.13 inches; B = 17.6 inches.
Separation: AB = 61.6 miles.
Distance (LY): 1,000
Total luminosity (Suns): 126
Eta Lyr
20 Lyr; Aladfar; STF 2487; ADS 12197; HD 180163
Position: 1914+3909
A
B
C
Magnitude
4.38
8.58
11.10
Separation
—
28.6 +
161.5 +
PA
—
80 151 =
Notes:
AB 1830: 27.9 @ 85. 44 measurements.
AC 1880: 161.3 @ 151. 2 measurements.
A is a spectroscopic binary.
-9-
Year
—
1999
1909
Rating: 3 E
Spectra
B2.5 IV
Colors
W
W
W?
Zone 100
Observations:
C11 at 115x. Brilliant A, C is way out there! Nice 8m pair lies to the SE.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.2 inches.
Separation: AB = 46.4 miles; AC = 262 miles.
Distance (LY): 1040
Total luminosity (Suns): 1,537
Espin 2672
Ali 879; SAO 67754
Position: 1904+3812
A
B
Magnitude
9.35
12.60
Rating: 4 E
Separation PA
—
—
13.2 +
299 -
Year
—
1930
Spectra
A5
Colors
W
W?
Notes:
1923: 11.8 @ 300. 2 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.79 inches.
Separation: AB = 10.9 miles.
Distance (LY): 530
Total luminosity (Suns): 4.20
STF 2456
SAO 67806
Rating: 4 E
Position: 1906+3831
A
B
Magnitude
9.25
9.28
Separation PA
—
—
18.5 -! 347 -
Year
—
1991
Spectra
F5
Colors
W
O
Notes:
1829: 29.1 @ 14. 37 measurements. The stars have different proper motions.
- 10 -
Zone 100
H. Struve found a 15.9m star in 1888 at 21.4 @ 97. 2 measurements, the latest
(1905) being 20.5 @ 97.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.0 inches.
Separation: AB = 7.01 miles.
Distance (LY): 243
Total luminosity (Suns): 2.1
STF 2472
CD = STF 2473; ADS 12090; HD 178848; SAO 67865
Rating: 4 E
Position: 1909+3754
A
B
C
D
E
Magnitude
8.26
10.75
9.20
10.50
12.90
Notes:
AB 1831:
AC 1832:
AD 1898:
AE 1900:
17.1 @ 337.
75.1 @ 349.
79.0 @ 344.
50.4 @ 331.
Separation
—
21.8 +
75.2 +
79.0 =
52.0 +
PA
—
339 +
348 344 =
331 =
Year
—
1991
1964
1964
1964
Spectra
K0
Colors
W
R!
W
?
?
30 measurements. The stars have different proper motions.
17 measurements.
9 measurements.
6 measurements.
Observations:
C8 at 83x. Very rich field.
C11 at 115x. The B star is very red! Wonderful little system. E is a challenge,
tucked in between A and C-D!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.7 inches.
Separation: AB = 26.2 miles; AC = 90.3 miles; AD = 94.9 miles; AE = 62.4
miles.
Distance (LY): 770
Total luminosity (Suns): 36.319
- 11 -
Zone 100
Theta Lyr
21 Lyr; Sh 292; HD 180809; SAO 68065
Rating: 4 E
Position: 1916+3808
A
B
C
Magnitude
4.36
9.10
11.00
Separation
—
100.2 +!
100.7 +
PA
—
74 +
128 +
Year
—
1963
1908
Spectra
K0 II
Colors
Y
pB
?
Notes:
AB 1823: 90.0 @ 72. 12 measurements. The primary is an infra-red source. The
stars show similar proper motions.
AC 1880: 99.9 @ 127. 2 measurements.
Observations:
C8 at 83x. Webb saw them as Y and B and said they lie in a "fine field."
C11 at 115x. C was tough. Gorgeous hue in A.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 210 inches.
Separation: AB = 120 miles; AC = 121 miles.
Distance (LY): 770
Total luminosity (Suns): 913
A. G. 377
ADS 12233
Rating: 4 E
Position: 1916+3825
A
B
Magnitude
9.63
10.40
Separation PA
—
—
9.8 +
129 +
Notes:
1903: 9.2 @ 127. 2 measurements.
- 12 -
Year
—
1988
Spectra
A0
Colors
W
O?
Zone 100
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.72 inches.
Separation: AB = 8.25 miles.
Distance (LY): 540
Total luminosity (Suns): 4.78
A 152
ADS 12135; SAO 67916
Rating: 5 E
Position: 1911+3701
A
B
C
Magnitude
9.76
10.64
11.01
Separation
—
2.6 +
21.8 +
PA
—
3=
175 +
Year
—
1997
1933
Notes:
AB 1901: 2.1 @ 3. 12 measurements.
AC 1901: 20.5 @ 173. 6 measurements.
Observations:
C8 at 104x. It lies between two 9.2m stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.98 inches.
Separation: AB = 528 feet; AC = 4,805 feet.
Distance (LY): 27
Total luminosity (Suns): 0.009
- 13 -
Spectra
A5
Colors
W
No
W
Zone 100
Scheiner 584
Position: 1914+3911
A
B
Magnitude
10.83
11.31
Rating: 5 E
Separation PA
—
—
25.0 117 +
Year
—
1991
Spectra
Colors
W
W
Notes:
1895: 25.1 @ 116. 6 measurements.
Observations:
C8 at 104x. Eta Lyr (4.4m) is an excellent skymark some 10 min W.
Ali 1110
SAO 68066
Rating: 5 E
Position: 1916+3954
A
B
Magnitude
9.27
12.40
Separation PA
—
—
13.4
316
Year
—
1928
Notes:
1 measurement.
Observations:
C11 at 115x. Rich field.
Distance (LY): 243
Total luminosity (Suns): 0.955
- 14 -
Spectra
A5
Colors
W
?
Zone 100
Moderate
STF 2481
ADS 12145; HD 179484; SAO 67936
Rating: 2 M
Position: 1911+3847
A
B
Magnitude
8.44
9.30
Separation PA
—
—
4.5 +
203 -
Year
—
1996
Spectra
G5 V
Colors
Y
W
Notes:
AB 1830: 3.8 @ 234. Over 100 measurements.
Observations:
C11 at 115x. Nice pair! It is like the base of a Christmas tree with the tree being 1012m stars to the WSW. Nice effect! Rich field.
Scale model (in which the Sun is
the size of a baseball):
Diameter: A = 3.00 inches.
Separation: AB = 1.11 miles.
Distance (LY): 159
Total luminosity (Suns): 2.7
Σ2481
Double star; Y, W; 8.4 / 9.3; 5” @ 203
Observed with C8 on 8/10/99
Magnification: 200x
- 15 -
Zone 100
Espin 2035
Mitchell 7; ADS 12116; SAO 67897
Rating: 4 M
Position: 1910+3849
A
B
Magnitude
10.19
11.10
Separation PA
—
—
3.2 173 -
Year
—
1988
Spectra
G0
Colors
yW
O
Notes:
1915: 3.6 @ 178. 12 measurements.
Observations:
C11 at 115x. Nice field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.1 inches.
Separation: AB = 4,435 feet.
Distance (LY): 170
Total luminosity (Suns): 0.272
Holmes 19
Ali 884
Rating: 5 M
Position: 1913+3908
A
B
Magnitude
10.89
13.69
Separation PA
—
—
11.9 335 -
Notes:
1922: 11.8 @ 332. 4 measurements.
Observations:
C11 at 115x. The pair lies 5 min W of Eta Lyr.
- 16 -
Year
—
1990
Spectra
Colors
W
?
Zone 100
Scheiner 585
SAO 68031
Rating: 5 M
Position: 1915+3820
A
B
Magnitude
8.77
11.60
Separation PA
—
—
14.6 126 -
Year
—
1929
Spectra
K0
Colors
Y
R
Notes:
1896: 15.3 @ 128. 2 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.4 inches.
Separation: AB = 3.09 miles.
Distance (LY): 136
Total luminosity (Suns): 0.43
Difficult
STF 2469
Popovic 1226 (C); ADS 12075; HD 178661; SAO 67846
Rating: 5 D
Position: 1908+3855
A
B
C
Magnitude
7.61
8.89
12.10
Separation
—
1.2 37.7
PA
—
127 +
162
Year
—
1998
1984
Spectra
A3
Notes:
AB 1831: 1.3 @ 121. 39 measurements. A is a spectroscopic binary.
AC 1 measurement.
Observations:
C8 at 280x.
- 17 -
Colors
W
B
No
Zone 100
C11 at 115x. At 115x, C was easy but no AB split. At 311x, AB was a good split.
Tough pair!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.21 inches.
Separation: AB = 4,118 feet; AC = 24.7 miles.
Distance (LY): 420
Total luminosity (Suns): 17
Zone 101, Map 3
Double Stars
Easy
Hertzsprung 13
Position: 1906+3502
A
B
Magnitude
9.58
10.05
Rating: 4 E
Separation PA
—
—
21.3 105 +
Year
—
1946
Notes:
1893: 22.1 @ 79. 5 measurements.
Observations:
C11 at 115x.
Distance (LY): 178
Total luminosity (Suns): 0.603
- 18 -
Spectra
Colors
W
W
Zone 100
H V 103
HD 178160; SAO 67810
Rating: 4 E
Position: 1906+3553
A
B
Magnitude
8.06
10.41
Separation PA
—
—
56.7 +
55 -
Year
—
1991
Spectra
A2
Colors
W
B
Notes:
1840: 54.6 @ 56. 13 measurements.
The stars have different proper motions.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.09 inches.
Separation: AB = 57.5 miles.
Distance (LY): 650
Total luminosity (Suns): 22
Moderate
STF 2448
ADS 12002; HD 177543; SAO 67752
Rating: 2 M
Position: 1904+3544
A
B
Magnitude
8.02
8.12
Separation PA
—
—
2.5 +
191 -
Year
—
1997
Spectra
A3
Colors
W
W
Notes:
1831: 2.4 @ 193. 65 measurements.
Observations:
C8 at 206x.
C11 at 115x. Where split, but better view at 311x. An 8m star is 7 min W. Not quite
equal colors, but very close!
- 19 -
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.40 inches.
Separation: AB = 3.19 miles.
Distance (LY): 820
Total luminosity (Suns): 51
Zone 101, Map 4
Double Stars
Easy
STF 3131
ADS 12338; HD 181879; SAO 68170
Rating: 4 E
Position: 1921+3911
A
B
Magnitude
9.05
10.97
Separation PA
—
—
9.6 +
300 -
Year
—
1991
Notes:
1832: 9.3 @ 306. 18 measurements.
Observations:
C8 at 104x. Faint but rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.51 inches.
Separation: AB = 28.5 miles.
Distance (LY): 1,900
Total luminosity (Suns): 111
- 20 -
Spectra
A2
Colors
W
pB
Zone 100
h1395
ADS 12427
Rating: 4 E
Position: 1925+3708
A
B
C
Magnitude
9.22
9.54
10.37
Separation
—
2.8 54.0 -
PA
—
64 +
13 -
Year
—
1991
1984
Spectra
A0
Colors
W
No
B
Notes:
1879: 3.0 @ 61. 10 measurements.
AC 1909: 56.0 @ 14. 5 measurements.
Observations:
C8 at 104x. A bright triangle lies to the N, composed of 7.0m, 7.8m, and 8.4m stars.
Scheiner 604
Position: 1929+3808
A
B
Magnitude
10.36
10.64
Rating: 5 E
Separation PA
—
—
17.0 170 -
Year
—
1991
Spectra
Colors
W
W
Notes:
1896: 17.3 @ 172. 8 measurements.
Observations:
C8 at 104x. Just 10 min W lies a nice U-shaped asterism dominated by a 9.5m star at
its upper right leg.
Distance (LY): 71
Total luminosity (Suns): 0.05
- 21 -
Zone 100
Moderate
Hipparcos 2770
SAO 68397
Rting: 5 M
Position: 1930+3936
A
B
Magnitude
9.13
12.85
Separation PA
—
—
14.2
88
Year
—
1991
Spectra
F8
Colors
W
?
Notes:
1 measurement.
Observations:
C11 at 115x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.0 inches.
Separation: AB = 12.4 miles.
Distance (LY): 560
Total luminosity (Suns): 5.64
Difficult
Hough 450
ADS 12446; HD 183078; SAO 68302
Rating: 3 D
Position: 1926+3849
A
B
C
Magnitude
8.10
9.25
12.20
Separation
—
1.0 +
29.6 -
PA
—
265 72 -
Notes:
AB 1892: 0.8 @ 272. 24 measurements.
AC 1891: 30.6 @ 74. 4 measurements.
Observations:
C11 at 634x.
- 22 -
Year
—
1996
1925
Spectra
F5
Colors
W
W
?
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.1 inches.
Separation: AB = 1.20 miles; AC = 35.5 miles.
Distance (LY): 770
Total luminosity (Suns): 36
Deep Sky Objects
Moderate
NGC 6791
Position: 1921+3751
Type: Oc
Dimensions: 15'
Rating: 5 M
Class: I 2r
Cluster population: 300
Magnitude: 9.5
Notes:
It is 6.3 billion years old! (The earliest spectral class is an old F2.) The brightest star
is 13m.
It lies 26,600 light years from the galactic center and 3,000 light years above the
galactic plane, which helps explain why it has stayed together so long.
Observations:
C8 at 83x. Faint, coarse and grainy, with a N-S axis.
C11 at 115x. Very sparse, open and dim. I counted 14 stars.
Model (where the Sun is a baseball):
Its diameter would be 23,880 miles with its stars 1,780 miles apart.
Distance (LY): 19,000
Luminosity (suns): 3,700
- 23 -
Zone 100
Zone 101, Map 5
Double Stars
Easy
STF 2534
ADS 12478; HD 183363; SAO 68347
Rating: 2 E
Position: 1928+3631
A
B
Magnitude
7.55
7.76
Separation PA
—
—
6.9 +
65 +
Year
—
1996
Spectra
B9 III
Colors
W
O
Notes:
1830: 6.8 @ 62. 43 measurements. The stars show a similar, but small, proper
motion.
Observations:
C8 at 104x. Webb saw them as W and B, and wrote that it was in a "fine field."
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.6 inches.
Separation: AB = 18.0 miles.
Distance (LY): 1,670
Total luminosity (Suns): 368
STF 2505
ADS 12328; HD 181658; SAO 68150
Rating: 3 E
Position: 1920+3532
A
B
C
Magnitude
8.19
9.28
12.80
Separation
—
10.9 +
19.3
PA
—
315 =
224
- 24 -
Year
—
1994
1905
Spectra
K
F
Colors
O
B
?
Zone 100
Notes:
AB 1831: 9.9 @ 315. 23 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. However, the stars show similar proper
motion.
AC 1 measurement.
Observations:
C8 at 83x. Webb saw them as Y and B. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 34.8 inches; B = 14.0 inches.
Separation: AB = 25.2 miles; AC = 44.5 miles.
Distance (LY): 1,480
Total luminosity (Suns): 134
Bur 360
ADS 12304; HD 181329
Rating: 4 E
Position: 1919+3513
A
B
C
Magnitude
8.57
10.16
10.51
Separation
—
5.6 36.9 +
PA
—
70 343 =
Year
—
1961
1991
Spectra
A3
Colors
W
O
W
Notes:
AB 1876: 6.3 @ 72. 11 measuremenst.
AC 1876: 36.6 @ 343. 11 measurements.
All three stars have different proper motions and Hipparcos gives different distances
for A and B (640 and 92 light years).
Observations:
C8 at 104x.
- 25 -
Zone 100
Espin 2179
ADS 12438; SAO 68295
Position: 1926+3658
A
B
Magnitude
9.01
11.30
Rating: 5 E
Separation PA
—
—
6.3
132
Year
—
1925
Spectra
A2
Colors
W
O
Notes:
1 measurement.
Observations:
C8 at 104x. Very rich field.
Scheiner 605
Position: 1929+3609
A
B
Magnitude
10.16
11.04
Rating: 5 E
Separation PA
—
—
24.8
287
Year
—
1895
Spectra
Colors
W
W?
Notes:
1 measurement.
Observations:
C8 at 104x. This pair lies midway between a 6.3m star (12 min NE) and an 8.4m star
(12 min SW).
Moderate
Bur 1286
ADS 12443; SAO 68297
Rating: 4 M
Position: 1926+3555
A
B
C
D
Magnitude
9.32
10.00
12.70
10.32
Separation
—
16.9 +!
6.2 37.6 +
PA
—
49 -!!
286 +?
39 +
- 26 -
Year
—
1984
1997
1908
Spectra
K0
Colors
Y
?
?
bW
Zone 100
Notes:
AB 1895: 6.1 @ 129. 24 measurements. The stars have different proper motions.
AC 1926: 6.9 @ 100. 4 measurements. Quadrant reversal?
AD 1906: 37.0 @ 38. 2 measurements.
Observations:
C8 at 104x. Star B was not seen.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 26.2 inches.
Separation: AB = 78.3 miles; AC = 28.7 miles; AD = 174 miles.
Distance (LY): 2,970
Total luminosity (Suns): 190
Difficult
Hussey 1194
ADS 12497; SAO 68354
Rating: 4 D
Position: 1928+3520
A
B
C
Magnitude
9.41
9.70
10.48
Separation
—
0.9 =
29.5 -
PA
—
38 +
208 +
Year
—
1998
1984
Spectra
A0
Colors
W
W?
W?
Notes:
AB 1904: 0.9 @ 36. 19 measurements.
AC 1895: 30.0 @ 207. 7 measurements. Hipparcos shows the C star to be at a
distance of 128 light years.
Observations:
C8 at 697x. Two distinctive skymarks are in the area— one is a tiny triangle of 8.5m
stars just 5 min SE of Hussey 1194, and the other is a 7.6m star 25 min SW.
- 27 -
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.64 inches.
Separation: AB = 2,323 feet; AC = 14.7 miles.
Distance (LY): 320
Total luminosity (Suns): 3
Zone 101, Map 6
Double Stars
Easy
STF 2588
ADS 12986; HD 187613; SAO 48866
Rating: 1 E
Position: 1949+4422
A
B
Magnitude
7.16
7.68
Separation PA
—
—
9.6 +
159 -
Year
—
1991
Spectra
B8 III
Colors
W
B
Notes:
AB 1829: 9.5 @ 162. 24 measurements.
Aitken found an 8.70m companion to B in 1904 at only 0.3 @ 52. 18 measurements.
Observations:
C8 at 83x. Others report B! and oB.
C11 at 115x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.0 inches.
Separation: AB = 86.9 miles.
Distance (LY): 5,800
Total luminosity (Suns): 6,700
- 28 -
Zone 100
OS 393
ADS 13190; HD 189376; SAO 49030
Rating: 3 E
Position: 1958+4423
A
B
Magnitude
8.14
9.10
Separation PA
—
—
17.2 231 -
Year
—
1991
Spectra
K0
A0
Colors
O
B
Notes:
1843: 22.2 @ 235. 30 measurements.
Hipparcos/Tycho data show different distances for these stars (257 and 4,080 light
years); they may be optical.
Observations:
C8 at 83x. Webb saw them as R and B. Rich field. There is a neat right triangle of 8
m stars 5 min SW, and a grainy asterism 10 min NW.
Espin 490
ADS 12692
Rating: 4 E
Position: 1937+4327
A
B
a
Magnitude
10.11
10.01
12.80
Separation
—
64.3 +
16.4
PA
—
222 230
Notes:
AB 1893: 62.5 @ 223. 3 measurements.
Aa 1 measurement.
Observations:
C8 at 104x. The P star was very difficult.
A good skymark is a 6.3m star 15 min N.
- 29 -
Year
—
1984
1907
Spectra
Colors
W
W
?
Zone 100
Roe 40
ADS 13098; HD 188611; SAO 48958
Rating: 4 E
Position: 1954+4234
A
B
Magnitude
9.12
10.47
Separation PA
—
—
9.2 339 -
Year
—
1991
Spectra
A2
Colors
W
W
Notes:
1892: 9.7 @ 342. 5 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.54 inches.
Separation: AB = 1.88 miles.
Distance (LY): 131
Total luminosity (Suns): 0.39
Fox 29
ADS 12762
Rating: 5 E
Position: 1939+4138
A
B
Magnitude
10.41
11.30
Separation PA
—
—
42.4 46 =
Year
—
1991
Spectra
K2
Colors
Y
W?
Notes:
1892: 42.9 @ 46. 7 measurements.
May be optical because Hipparcos gives different distances (110 and 137 light years).
Observations:
C8 at 104x. An 8.0m star lies 4 min W.
Very, very rich field.
- 30 -
Zone 100
Dawes 13
ADS 12874; HD 186816; SAO 48791
Rating: 5 E
Position: 1945+4456
A
B
C
Magnitude
7.29
12.30
10.99
Separation
—
1.8 153.4 +
PA
—
272 +
290 =
Year
—
1946
1909
Spectra
K0
Colors
Y
No
B
Notes:
AB 1859: 2.3 @ 266. 12 measurements.
AC 1878: 153.1 @ 290. 2 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 23.2 inches.
Separation: AB = 2.19 miles; AC = 186 miles.
Distance (LY): 780
Total luminosity (Suns): 61
Espin 1565
ADS 12988
Rating: 5 E
Position: 1949+4238
A
B
Magnitude
9.69
10.43
Separation PA
—
—
33.2 33 -
Notes:
1892: 38.3 @ 35. 5 measurements.
Observations:
C8 at 104x. Rich field.
- 31 -
Year
—
1991
Spectra
A2
Colors
W
W
Zone 100
Moderate
STF 2607
OS 392; ADS 13186; HD 189377; SAO 49031
Rating: 3 M
Position: 1958+4215
A
B
Magnitude
6.40
8.94
Separation PA
—
—
3.0 290 -
Year
—
1991
Spectra
A3 V
Colors
W
B
Notes:
1831: 3.2 @ 293. 54 measurements. Star A is a spectroscopic binary.
Otto Struve found a companion to A (8.40m in 1843) at 0.4 @ 322. 40
measurements.
Observations:
C8 at 280x. Webb saw them as W and W or O and B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.10 inches.
Separation: AB = 5.94 miles.
Distance (LY): 1,270
Total luminosity (Suns): 432
Smart 109
HD 188524
Rating: 4 M
Position: 1954+4436
A
B
Magnitude
10.61
10.65
Separation PA
—
—
21.6 +
113 -
Notes:
1892: 20.5 @ 120. 6 measurements.
Observations:
C8 at 104x.
- 32 -
Year
—
1991
Spectra
A
Colors
W
W
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.72 inches.
Separation: AB = 33.7 miles.
Distance (LY): 1,000
Total luminosity (Suns): 10
A 601
ADS 12903
Rating: 5 M
Position: 1946+4145
A
B
C
Magnitude
9.96
10.90
10.90
Separation
—
0.9 6.0 +
PA
—
161 +
5=
Year
—
1994
1941
Spectra
Colors
W
No
W
Notes:
AB 1903: 1.2 @ 157. 9 measurements.
AC 1903: 5.6 @ 5. 6 measurements.
Observations:
C11 at 115x. Nice field.
Distance (LY): 108
Total luminosity (Suns): 0.174
OS 391 rej
AX Cyg; Sturdy 12 (C); ADS 13167; HD 189160; SAO 49005
Rating: 5 M
Position: 1957+4416
A
B
C
Magnitude
7.92
10.51
12.78
Separation
—
16.2 32.1
PA
—
51 129
Notes:
AB 1843: 17.8 @ 53. 8 measurements.
AC 1 measurement.
A is an irregular variable.
- 33 -
Year
—
1988
1988
Spectra
A0p
Colors
W
?
?
Zone 100
This system may be optical as Hipparcos shows different distances (1,720 and 80 light
years).
Observations:
C11 at 115x.
Difficult
OS 378
Guillaume 25 (C); ADS 12687; HD 185266; SAO 48640
Rating: 3 D
Position: 1937+4101
A
B
C
Magnitude
7.45
8.62
Separation
—
1.4 +
166.5
PA
—
287 161
Year
—
1991
1913
Spectra
A0
Colors
W
O
No
Notes:
AB 1843: 1.1 @ 289. 28 measurements.
AC 1 measurement.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.91 inches.
Separation: AB = 2.62 miles; AC = 311 miles.
Distance (LY): 1,200
Total luminosity (Suns): 158
OS 383
ADS 12831
Rating: 3 D
Position: 1943+4043
A
B
C
D
Magnitude
6.71
7.97
11.00
10.00
Separation
—
0.8 +
45.2 =
68.3 -
PA
—
17 98 43 - 34 -
Year
—
1999
1997
1997
Spectra
B9.5 V
Colors
W
bW
W
W
Zone 100
Notes:
AB 1843: 0.6 @ 25. 46 measurements.
AC 1903: 45.2 @ 99. 5 measurements.
AD 1933: 68.9 @ 44. 2 measurements.
Observations:
C11 at 560x. B lies on the first diffraction ring of A and is difficult.
Zone 101, Map 7
Double Stars
Easy
A 1402
ADS 12796
Rating: 3 E
Position: 1941+3851
A
B
Magnitude
9.76
9.86
Separation PA
—
—
3.0 =
216 +
Year
—
1976
Notes:
1906: 3.0 @ 215. 5 measurements.
Observations:
C11 at 115x! This pair lies 3 min N of an 8.6m star.
- 35 -
Spectra
Colors
W
W
Zone 100
OSS 188
HD 186429; SAO 68737
Rating: 3 E
Position: 1943+3741
A
B
Magnitude
7.56
7.92
Separation PA
—
—
60.4 +
120 -
Year
—
1999
Spectra
K2
F3 Ib
Colors
Y
W
Notes:
1875: 58.8 @ 122. 20 measurements.
Hipparcos/Tycho data show different distances for these stars (2,400 and 1,090 light
years); they may be optical. The stars have different proper motions.
There is a 13th mag star between A and B. From A, 28.73", and from B, 30.48".
There are also 4 more very faint comes.
Observations:
C8 at 104x. Bright and rich field.
Espin 1967
ADS 12682
Rating: 4 E
Position: 1936+4001
A
B
Magnitude
10.33
10.31
Separation PA
—
—
23.9
61
Year
—
1922
Spectra
Notes:
1 measurement.
There are two more faint comes.
Observations:
C8 at 104x. A distinctive chain (N-S) of 4 stars (8m-10m) lies 15 min W.
Rich field.
- 36 -
Colors
Y
W
Zone 100
Scheiner 658
Rating: 4 E
Position: 1940+3831
A
B
Magnitude
10.66
11.13
Separation PA
—
—
14.3 139 -?
Year
—
1991
Spectra
Colors
pO
W
Notes:
1896: 15.0 @ 326. 7 measurements. Quadrant reversal?
Observations:
C11 at 115x. Very rich field, with a nice 11m grouping to the W.
Distance (LY): 42
Total luminosity (Suns): 0.012
Scheiner 659
Rating: 4 E
Position: 1941+3733
A
B
Magnitude
10.63
10.74
Separation PA
—
—
14.8 +
259 -?
Year
—
1991
Spectra
Colors
W
W
Notes:
1896: 14.6 @ 81. 6 measurements. Quadrant reversal?
This system may be optical as Hipparcos shows different distances (530 and 99 light
years).
Observations:
C11 at 115x. Nice field.
Scheiner 625
Rating: 5 E
Position: 1933+3854
A
B
Magnitude
10.48
11.33
Separation PA
—
—
17.7 215 =
- 37 -
Year
—
1929
Spectra
Colors
yW
bW
Zone 100
Notes:
1896: 18.0 @ 215. 3 measurements.
Observations:
C8 at 104x. A 6.3m star 20 min SE is a good navigation aid.
Espin 1968
ADS 12745
Rating: 5 E
Position: 1939+4009
A
B
Magnitude
9.53
11.25
Separation PA
—
—
41.2
116
Year
—
1922
Spectra
Colors
W
W?
Notes:
1 measurement.
B has a 12.6m companion at 4.2 @ 278 (1922).
Observations:
C8 at 104x. NGC 6819, a dense open cluster, lies 1o E.
Distance (LY): 205
Total luminosity (Suns): 0.6
Espin 1969
ADS 12838
Rating: 5 E
Position: 1943+3855
A
B
C
Magnitude
10.19
10.61
11.12
Separation
—
2.5 =
28.0 +
PA
—
157 150 +
Year
—
1991
1946
Spectra
A
Colors
W
No
W?
Notes:
AB 1922: 2.5 @ 171. 8 measurements.
AC 1896: 27.2 @ 149. 7 measurements.
May be optical because Hipparcos gives different distances (340 and 69 light years).
- 38 -
Zone 100
Observations:
C8 at 104x. A 6.6m star 24 min S is a good reference point.
Bpm 196
HD 186410; SAO 68731
Rating: 5 E
Position: 1943+4002
A
B
Magnitude
7.94
8.26
Separation PA
—
—
104.5 +
164 -
Year
—
1990
Spectra
A0
Colors
W
W
Notes:
1909: 102.1 @ 165. 4 measurements.
This system may be optical as Hipparcos shows different distances (910 and 453 light
years).
Observations:
C11 at 115x. Bright field.
Scheiner 680
HD 225740; SAO 68829
Rating: 5 E
Position: 1946+3815
A
B
Magnitude
9.00
10.49
Separation PA
—
—
28.1 +
182 =
Year
—
1985
Spectra
K5
Colors
W
W
Notes:
1896: 27.8 @ 182. 7 measurements.
Observations:
C8 at 104x. It lies 13 min SW of SAO 68859 (5.8m B8V, 100 times brighter than the
Sun and 520 light years away), a star that rotates at 350 kps! There is also an 11m star at
35" in pa 270.
- 39 -
Zone 100
Scheiner 685
Position: 1948+3817
A
B
Magnitude
11.15
10.95
Rating: 5 E
Separation PA
—
—
23.7 233 -
Year
—
1985
Spectra
Colors
W
bW
Notes:
1896: 23.9 @ 235. 2 measurements.
Observations:
C8 at 104x. A 5.8m star 12 min NW is a glaring nuisance! Rich field.
Moderate
A 1397
ADS 12578; SAO 68455
Rating: 3 M
Position: 1932+3849
A
B
C
D
Magnitude
10.11
10.15
11.57
14.50
Separation
—
2.0 +
26.1 +
19.4
PA
—
98 +
172 +
89
Year
—
1999
1991
1927
Spectra
F8
Notes:
AB 1906: 1.9 @ 96. 11 measurements.
AC 1927: 25.3 @ 171. 2 measurements.
AD 1 measurement.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.8 inches.
Separation: AB = 3,802 feet; AC = 9.40 miles; AD = 6.99 miles.
Distance (LY): 231
Total luminosity (Suns): 0.845
- 40 -
Colors
W
W
?
No
Zone 100
Scheiner 623
Position: 1932+3920
A
B
Magnitude
10.40
11.76
Rating: 4 M
Separation PA
—
—
25.9 =
122 -
Year
—
1991
Spectra
F2
Colors
W
?
Notes:
1893: 25.9 @ 123. 4 measurements.
Observations:
C11 at 115x. I have identified A as GSC 3135:672 and B as GSC 3135:809. These
stars do not agree with the WDS identity of A (SAO 68461, an 8.55m F2 star with a
companion in the wrong position angle).
Scheiner 666
HD 186506; SAO 68751
Rating: 4 M
Position: 1943+3840
A
B
Magnitude
6.37
11.12
Separation PA
—
—
22.6 320 -
Year
—
1992
Spectra
K0
Colors
yO!
B
Notes:
1896: 25.4 @ 326. 2 measurements.
Hipparcos/Tycho data show different distances for these stars (1,440 and 28 light
years); they may be optical.
No evidence of duplicity is seen by Hipparcos.
Observations:
C8 at 83x.
- 41 -
Zone 100
A 1404
ADS 12906; HD 186996; SAO 68820
Rating: 5 M
Position: 1946+3953
A
B
C
D
Magnitude
7.53
8.30
11.76
11.28
Separation
—
0.2 =
19.6 =
21.5 -
PA
—
290 272 =
79 =
Year
—
1996
1976
1964
Spectra
B9 III
Colors
W
No
W
W
Notes:
AB 1906: 0.2 @ 322. 21 measurements.
AC 1906: 19.6 @ 272. 3 measurements.
AD 1896: 21.8 @ 79. 3 measurements.
AB too close 1935-1943. measures uncertain 1943-1958.
Observations:
C11 at 115x. C was very difficult.
Difficult
OS 384
ADS 12851; HD 186605; SAO 68767
Rating: 5 D
Position: 1944+3819
A
B
C
Magnitude
7.18
7.90
11.00
Separation
—
1.1 +
60.0 +
PA
—
195 296 -
Notes:
AB 1843: 0.8 @ 197. 90 measurements.
AC 1856: 58.50 @ 298. 11 measurements.
Observations:
C8 at 516x.
- 42 -
Year
—
1997
1996
Spectra
B8
Colors
W
W
No
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.04 inches.
Separation: AB = 5.32 miles; AC = 290 miles.
Distance (LY): 3,100
Total luminosity (Suns): 1530
Deep Sky Objects
Moderate
NGC 6819
Other Names: Melotte 223; Collinder 403; Raab 139
Astronomical League Program: Binocular Deep Sky Club
Rating: 2 M
Position: 1941+4011
Type: Oc
Dimensions: 5'
Class: I 1r
Cluster population: 150
Magnitude: 7.3
Notes:
It is 3.5 billion years old! The earliest spectral type is an A0, and 929 stars have been
counted as members of this group. The brightest star is 11.5m.
It has survived so long because it lies 26,600 light years from the galactic center and
1,000 light years above the galactic plane.
Observations:
C8 at 37x. A nebulous cluster with a cigar shape, it is dominated by two "V"s that
point NW with sharp voids between the legs.
C11 at 115x. Beautiful, tight little knot of sparkly stars. At 193x, it was very grainy.
It boasts two columns of stars, the east one being a little richer and brighter. At 339x,
there is a trace of nebulosity in the eastern column. I counted 27 stars. It lies 8 min SW
of a 7m star.
Model (where the Sun is a baseball):
Its diameter would be 3,370 miles. Its stars would be 303 miles apart.
Distance (LY): 7,700
Luminosity (suns): 5,580
See the sketch on the next page.
- 43 -
Zone 100
NGC 6819
Open cluster (I 1 r, 150 stars)
Observed with C8 on 8/22/92
Magnification: 104x
- 44 -
Zone 100
Zone 101, Map 8
Double Stars
Easy
H V 137
Bottger 3 (C); ADS 12900; HD 186927; SAO 68810
Rating: 2 E
Position: 1946+3500
A
B
C
Magnitude
6.14
8.18
11.51
Separation
—
37.5 +
44.6
PA
—
25 77
Year
—
1991
1958
Spectra
A2 V
Colors
yO!
B
No
Notes:
AB 1783: 35.0 @ 33. 23 measurements.
AC 1 measurement.
Observations:
C8 at 104x. It is faint and lies in a bleak field. Webb saw them as Y and B, or O and
B. "Beautiful," he wrote.
C11 at 115x. The colors are rich.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches.
Separation: AB = 24.9 miles; AC = 29.5 miles.
Distance (LY): 425
Total luminosity (Suns): 58
- 45 -
Zone 100
STF 2538
ADS 12561; HD 184106; SAO 68434
Rating: 3 E
Position: 1931+3642
A
B
C
D
Magnitude
8.30
8.91
9.10
13.00
Separation
—
52.4 47.0 21.3 +
PA
—
67 +?
248 =
Year
—
1991
1957
237 -
Spectra
G0
F2
G0
1916
Colors
W
W
O
Notes:
AB 1830: 53.0 @ 245. 25 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. Quadrant reversal?
AC 1857: 47.1 @ 248. 18 measurements.
AD 1878: 21.1 @ 239. 5 measurements.
A 13.00m companion to A was found by Burnham and was at 4.4 @ 41 when he first
measured it. 7 measurements.
Observations:
C8 at 104x. Star D is extremely difficult. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.2 inches B = 12.3 inches; C = 18.0 inches.
Separation: AB = 33.1 miles; AC = 29.7 miles; AD = 13.5 miles.
Distance (LY): 405
Total luminosity (Suns): 13.08
A. G. 232
SAO 68521
Rating: 3 E
Position: 1935+3518
A
B
Magnitude
9.21
10.37
Separation PA
—
—
10.7 +
278 -
Notes:
1894: 10.6 @ 279. 16 measurements.
- 46 -
Year
—
1991
Spectra
F0
Colors
W
V
Zone 100
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.2 inches.
Separation: AB = 3,326 feet.
Distance (LY): 38
Total luminosity (Suns): 0.031
A. G. 234
ADS 12657
Rating: 3 E
Position: 1936+3617
A
B
Magnitude
9.99
10.16
Separation PA
—
—
2.6 322 -
Year
—
1999
Spectra
Colors
W
W
Notes:
1902: 2.7 @ 329. 17 measurements.
Observations:
C11 at 115x!
STF 2578
H N 13; ADS 12893; HD 186901; SAO 68805
Rating: 3 E
Position: 1946+3605
A
B
C
D
Magnitude
6.38
7.16
11.40
9.00
Separation
—
15.0 +
45.5 143.1 =
PA
—
125 358 =
249 -
- 47 -
Year
—
1995
1908
1956
Spectra
B9 V
A0
Colors
B
B
?
W
Zone 100
Notes:
AB 1823: 14.2 @ 126. 53 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. However, the stars exhibit common proper
motion.
AC 1894: 46.2 @ 358. 3 measurements.
AD 1880: 143.3 @ 251. 5 measurements.
Observations:
C8 at 166x (Microguide). Made six measures of separation and PA and obtained
16.9" @ 123.4.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.60 inches; B = 5.79 inches.
Separation: AB = 44.5 miles; AC = 134 miles; AD = 424 miles.
Distance (LY): 1,900
Total luminosity (Suns): 1,258
h1414
Position: 1934+3610
A
B
Magnitude
9.27
10.62
Rating: 4 E
Separation PA
—
—
14.4 31 +
Year
—
1984
Spectra
Colors
W
B
Notes:
1894: 15.8 @ 28. 16 measurements.
Observations:
C11 at 115x. Very nice field!
Scheiner 647
HD 185173; SAO 68569
Rating: 4 E
Position: 1936+3540
A
B
Magnitude
8.11
9.46
Separation PA
—
—
28.1
178
Notes:
1 measurement.
- 48 -
Year
—
1894
Spectra
A0
Colors
W
B
Zone 100
Observations:
C8 at 104x. Very, very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.16 inches.
Separation: AB = 11.5 miles.
Distance (LY): 263
Total luminosity (Suns): 4
h1421
Position: 1936+3536
A
B
Magnitude
9.38
10.48
Rating: 4 E
Separation PA
—
—
14.5 231 +
Year
—
1991
Spectra
A0
Colors
W
W
Notes:
1900: 15.0 @ 230. 4 measurements.
Observations:
C8 at 104x. Very, very rich and bright field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.63 inches.
Separation: AB = 3.64 miles.
Distance (LY): 161
Total luminosity (Suns): 0.5
Scheiner 649
Position: 1937+3538
A
B
Magnitude
10.63
11.11
Rating: 4 E
Separation PA
—
—
24.2 251 +?
Year
—
1991
Notes:
1894: 26.8 @ 66. 5 measurements. Quadrant reversal?
- 49 -
Spectra
Colors
O
W
Zone 100
Observations:
C11 at 115x. This pair lies in a very nice field, with four close and bright stars just to
the W.
Bur 1473
Scheiner 684 (C)
Rating: 4 E
Position: 1948+3513
A
B
C
Magnitude
10.56
11.70
10.94
Separation
—
0.9 =
25.7 +
PA
—
20 +
54 =
Year
—
1977
1966
Spectra
Colors
W
No
W
Notes:
AB 1941: 0.9 @ 10. 4 measurements.
AC 1894: 24.8 @ 54. 4 measurements.
Observations:
C11 at 115x. B was not detected at any power.
This pair forms a narrow isosceles triangle with a 10m star.
Distance (LY): 102
Total luminosity (Suns): 0.10
Scheiner 630
h1414; SAO 68497
Rating: 5 E
Position: 1934+3610
A
B
Magnitude
9.27
10.62
Separation PA
—
—
11.7
34
Notes:
1 measurement.
- 50 -
Year
—
1895
Spectra
Colors
W
W
Zone 100
Observations:
C8 at 104x. Very, very rich field.
Scheiner 650
Rating: 5 E
Position: 1937+3554
A
B
Magnitude
10.53
11.00
Separation PA
—
—
15.9 =
153 +
Year
—
1941
Spectra
Colors
W
W
Notes:
1894: 15.9 @ 151. 3 measurements.
Observations:
C8 at 104x. The field 15 min E of here is very rich!
Distance (LY): 19
Total luminosity (Suns): 0.003
Scheiner 656
ADS 12776; HD 185913; SAO 68665
Rating: 5 E
Position: 1940+3509
A
B
Magnitude
8.15
11.10
Separation PA
—
—
11.4 +
289 +
Year
—
1991
Notes:
1894: 10.7 @ 284. 8 measurements.
Observations:
C8 at 83x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.2 inches.
Separation: AB = 32.o miles.
Distance (LY): 1,800
Total luminosity (Suns): 109
- 51 -
Spectra
A0 III
Colors
W
?
Zone 100
Moderate
Scheiner 611
SAO 68413
Rating: 5 M
Position: 1931+3555
A
B
Magnitude
9.81
11.76
Separation PA
—
—
20.3
126
Year
—
1895
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C8 at 104x. This pair lies along a line connecting a 9.7m star (NW) with a 9.2m one
(SE).
Difficult
OS 377
ADS 12667; HD 185149
Rating: 4 D
Position: 1936+3539
A
B
C
Magnitude
8.94
9.42
10.17
Separation
—
0.9 +
25.2 -
PA
—
33 -?
154 =
Year
—
1998
1984
Spectra
A0
Colors
W
W
R
Notes:
AB 1842: 0.8 @ 221. 66 measurements. Quadrant reversal?
AC 1849: 25.30 @ 154. 19 measurements.
Hipparcos/Tycho data show different distances for these stars (106 light years to A,
333 to C); they may be optical. The stars have a small difference in proper motion.
Observations:
C8 at 516x.
- 52 -
Zone 100
Zone 101, Map 9
Double Stars
Easy
h1448
HD 226250
Rating: 3 E
Position: 1952+3802
A
B
Magnitude
9.72
9.83
Separation PA
—
—
11.5 168 =
Year
—
1991
Spectra
K
Colors
Y
W
Notes:
1896: 11.7 @ 168. 10 measurements.
This system may be optical as Hipparcos shows different distances (600 and 560 light
years). If they are related, the total luminosity (using the mean of the distances) would be
about 6.51 Suns.
Observations:
C11 at 115x. Very rich and bright field.
19 Cyg
V1509 Cyg; h603; ADS 13014; HD 187849; SAO 68947
Rating: 4 E
Position: 1951+3843
A
B
Magnitude
5.18
10.47
Separation PA
—
—
55
106
Year
—
1966
Spectra
M2 III
Notes:
This star is an infra-red source.
The companions are both optical (10.1m, 55 @ 106 and 10.8m, 22 @ 11).
Observations:
C8 at 83x. Rich field... scintillating.
- 53 -
Colors
O
?
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 66.0 inches.
Separation: AB = 54.9 miles.
Distance (LY): 640
Total luminosity (Suns): 300
h604
HD 188891; SAO 48983
Rating: 4 E
Position: 1956+4024
A
B
Magnitude
7.37
9.44
Separation PA
—
—
70.5 =
93 =
Year
—
1991
Spectra
B1 V
Colors
W
W
Notes:
1893: 70.5 @ 93. 8 measurements.
The stars have a small difference in proper motion.
Observations:
C8 at 104x. Very, very rich field.
Espin 84
ADS 12992; HD 187638; SAO 68909
Rating: 5 E
Position: 1949+3842
A
B
C
Magnitude
6.12
11.00
11.10
Separation
—
11.2 22.6 -
PA
—
161 +
95 -
Notes:
AB 1901: 11.4 @ 156. 7 measurements.
AC 1902: 23.1 @ 98. 4 measurements.
Observations:
C8 at 83x. Rich field.
- 54 -
Year
—
1985
1985
Spectra
G5 III
Colors
Y
?
?
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39.0 inches.
Separation: AB = 12.2 miles; AC = 25.7 miles.
Distance (LY): 700
Total luminosity (Suns): 143
Scheiner 735
HD 226607; SAO 69099
Rating: 5 E
Position: 1956+3836
A
B
Magnitude
8.71
11.91
Separation PA
—
—
20.3 132 -
Year
—
1985
Spectra
G0
Colors
yO
W
Notes:
1896: 20.6 @ 133. 4 measurements.
Hipparcos/Tycho data show different distances for these stars (203 and 65 light
years); they may be optical.
The Tycho-2 Catalogue indicates a single star entry.
Observations:
C8 at 104x.
Bur 1474
HD 189178; SAO 49011
Rating: 5 E
Position: 1957+4022
A
B
Magnitude
5.45
9.27
Separation PA
—
—
64 315 -
Year
—
1986
Spectra
B5 V
Colors
W
W
Notes:
1893: 65.6 @ 318. 9 measurements.
A is a spectroscopic binary.
This system may be optical as Hipparcos shows different distances (1,530 and 650
light years).
- 55 -
Zone 100
Observations:
C8 at 104x. Very, very rich field.
C11 at 115x.
Moderate
STF 2609
ADS 13198; HD 189432; SAO 69193
Rating: 3 M
Position: 1959+3806
A
B
Magnitude
6.71
7.72
Separation PA
—
—
2.0 22 -
Year
—
1999
Spectra
B5 IV
Colors
W
W
Notes:
1831: 2.4 @ 29. Over 100 measurements. The stars have a small difference in
proper motion.
Observations:
C8 at 206x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.2 inches.
Separation: AB = 5.49 miles.
Distance (LY): 1,760
Total luminosity (Suns): 905
Bpm 201
HD 188326; SAO 69027
Rating: 4 M
Position: 1953+3846
A
B
Magnitude
7.52
11.47
Separation PA
—
—
28.6 -! 273 -!
Year
—
1989
Notes:
1909: 43.7 @ 314. 2 measurements. Probably optical.
- 56 -
Spectra
G8 IV
Colors
Y
?
Zone 100
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.1 inches.
Separation: AB = 8.21 miles.
Distance (LY): 184
Total luminosity (Suns): 2.67
Scheiner 718
ADS 13091; HD 188501; SAO 69045
Rating: 4 M
Position: 1954+3906
A
B
Magnitude
8.03
13.22
Separation PA
—
—
15.0
351
Year
—
1896
Spectra
B9
Colors
W
W
Notes:
1 measurement.
Observations:
C8 at 104x. Extremely rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.04 inches.
Separation: AB = 44.5 miles.
Distance (LY): 1,900
Total luminosity (Suns): 206
Scheiner 711
HD 226327; SAO 69016
Rating: 5 M
Position: 1953+3757
A
B
Magnitude
9.44
11.92
Separation PA
—
—
21.9
230
- 57 -
Year
—
1896
Spectra
F0
Colors
W
W
Zone 100
Notes:
1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.3 inches.
Separation: AB = 10.2 miles.
Distance (LY): 299
Total luminosity (Suns): 1.29
Zone 101, Map 10
Double Stars
Easy
Scheiner 726
ADS 13116
Rating: 4 E
Position: 1955+3652
A
B
Magnitude
10.28
12.20
Separation PA
—
—
7.6 +
13 +
Year
—
1933
Spectra
Notes:
1896: 7.5 @ 14. 5 measurements.
Observations:
C11 at 115x. It lies 5 min SSE of 6m SAO 69072. A very rich field!
Distance (LY): 1,550
Total luminosity (Suns): 17
- 58 -
Colors
W
W
Zone 100
Scheiner 743
Position: 1957+3646
A
B
Magnitude
10.39
10.52
Rating: 4 E
Separation PA
—
—
29.5 +
37 -
Year
—
1991
Spectra
Colors
W
W
Notes:
1896: 29.1 @ 38. 5 measurements.
Observations:
C11 at 115x.
STF 2610
ADS 13204; HD 189528; SAO 69205
Rating: 4 E
Position: 1959+3532
A
B
C
Magnitude
8.10
8.90
11.80
Separation
—
4.3 =
12.3 -
PA
—
296 202 =
Year
—
1998
1997
Spectra
B9 V
Colors
W
B
?
Notes:
AB 1830: 4.3 @ 298. 28 measurements. The stars share a small common proper
motion.
AC 1843: 12.5 @ 202. 15 measurements.
Observations:
C8 at 206x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.60 inches.
Separation: AB = 8.72 miles; AC = 24.9 miles.
Distance (LY): 1,300
Total luminosity (Suns): 140
- 59 -
Zone 100
Scheiner 684
Bur 1473
Rating: 5 E
Position: 1948+3512
A
B
Magnitude
10.56
11.94
Separation PA
—
—
25.8 +
54 =
Year
—
1983
Spectra
A0
Colors
W
W
Notes:
1894: 24.8 @ 54. 11 measurements.
Observations:
C8 at 104x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.03 inches.
Separation: AB = 4.10 miles.
Distance (LY): 102
Total luminosity (Suns): 0.075
Scheiner 689
HD 225994
Rating: 5 E
Position: 1949+3516
A
B
Magnitude
10.26
11.06
Separation PA
—
—
21.2 +
301 -
Year
—
1941
Notes:
1894: 20.9 @ 302. 7 measurements.
Observations:
C8 at 104x. A 6.6m star lies 30 min W. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.00 inches.
Separation: AB = 2.74 miles.
Distance (LY): 83
Total luminosity (Suns): 0.06
- 60 -
Spectra
A2
Colors
W
bW
Zone 100
Scheiner 698
Position: 1951+3650
A
B
Magnitude
10.83
10.96
Rating: 5 E
Separation PA
—
—
16.7
23
Year
—
1896
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C8 at 104x.
Scheiner 703
HD 226201; SAO 68973
Rating: 5 E
Position: 1952+3718
A
B
Magnitude
9.00
10.94
Separation PA
—
—
25.8
5
Year
—
1896
Notes:
1 measurement.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.63 inches.
Separation: AB = 11.7 miles.
Distance (LY): 291
Total luminosity (Suns): 2
- 61 -
Spectra
A5
Colors
W
W?
Zone 100
Eta Cyg
Rating: 5 E
21 Cyg; h1455; ADE = Bur 980; ADS 13149; HD 188947; SAO 69116
Position: 1956+3505
A
B
C
D
E
Magnitude
3.89
12.00
13.42
12.00
11.5
Separation
—
7.5 +
45.8 48.7 57.1 -
PA
—
208 332 +
167 245 -
Year
—
1958
1989
1924
1989
Spectra
K0 III
Colors
Y!
No
?
?
?
Notes:
AB 1879: 7.1 @ 210. 12 measurements. The primary is an infra-red source.
AC 1879: 46.2 @ 325. 7 measurements.
AD 1879: 49.5 @ 170. 6 measurements.
AE 1898: 61.7 @ 247. 3 measurements.
The X-ray source Cygnus X-1 is 27' E of Eta.
Observations:
C8 at 206x. Use high powers and averted vision.
Moderate field. A trapezium lies 10 min E.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 1.62 miles; AC = 9.93 miles; AD = 10.5 miles; AE = 12.3
miles.
Distance (LY): 139
Total luminosity (Suns): 42.262
Moderate
A. G. 242
ADS 13069; HD 226338; SAO 69022
Rating: 3 M
Position: 1953+3704
A
B
Magnitude
9.32
10.17
Separation PA
—
—
2.0 =
178 - 62 -
Year
—
1991
Spectra
F2
Colors
W
W
Zone 100
Notes:
1902: 2.0 @ 179. 8 measurements.
Observations:
C11 at 339x.
Scheiner 770
ADS 13218; HD 189594; SAO 69216
Rating: 4 M
Position: 1959+3554
A
B
Magnitude
8.06
11.20
Separation PA
—
—
7.8 +
328 -
Year
—
1933
Spectra
K2 III
Colors
Y
O
Notes:
1894: 7.6 @ 333. 3 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 49.5 inches.
Separation: AB = 6.45 miles.
Distance (LY): 530
Total luminosity (Suns): 11
Difficult
OS 386
ADS 12965; HD 187375; SAO 68884
Rating: 4 D
Position: 1948+3709
A
B
Magnitude
7.82
8.64
Separation PA
—
—
0.8 70 -
- 63 -
Year
—
1999
Spectra
A2
Colors
O
O
Zone 100
Notes:
1843: 0.9 @ 81. 48 measurements.
Observations:
C8 at 516x.
C11 at 560x. Both yW to yO, and nice black gap between the Airy disks.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.98 inches.
Separation: AB = 21.2 miles.
Distance (LY): 17,000
Total luminosity (Suns): 27,300
OS 387
ADS 12972
Rating: 4 D
Position: 1949+3519
A
B
Magnitude
6.66
7.32
Separation PA
—
—
0.6 +
140 +
Year
—
1999
Spectra
F6 V
Colors
W
yW
Notes:
1843: 0.5 @ 118. Over 100 measurements.
Orbital period of 171.5 years, with semi-major axis of 0.65", motion retrograde.
Observations:
C11 at 634x. It came and went with turbulence, but at times, a clear black gap
showed between the Airy disks.
- 64 -
Zone 100
Zone 101 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
STF 2588
1949+4422
1E
6
STF 2534
1928+3631
2E
5
H V 137
1946+3500
2E
8
A. G. 227
1905+3803
3E
2
Sh 289
1913+3902
3E
2
Eta Lyr
1914+3909
3E
2
STF 2505
1920+3532
3E
5
A 594
1927+4305
3E
1
STF 2538
1931+3642
3E
8
A. G. 232
1935+3518
3E
8
A. G. 234
1936+3617
3E
8
A 1402
1941+3851
3E
7
OSS 188
1943+3741
3E
7
STF 2578
1946+3605
3E
8
h1448
1952+3802
3E
9
OS 393
1958+4423
3E
6
Espin 2672
1904+3812
4E
2
Hertzsprung 13
1906+3502
4E
3
H V 103
1906+3553
4E
3
STF 2456
1906+3831
4E
2
Component
A
B
A
B
A
B
C
A
B
A
B
A
B
C
A
B
C
A
B
A
B
C
D
A
B
A
B
A
B
A
B
A
B
C
D
A
B
A
B
A
B
A
B
A
B
A
B
- 65 -
Mag
7.16
7.68
7.55
7.76
6.14
8.18
11.51
9.43
9.80
8.01
8.71
4.38
8.58
11.10
8.19
9.28
12.80
9.67
10.31
8.30
8.91
9.10
13.00
9.21
10.37
9.99
10.16
9.76
9.86
7.56
7.92
6.38
7.16
11.40
9.00
9.72
9.83
8.14
9.10
9.35
12.60
9.58
10.05
8.06
10.41
9.25
9.28
Separation
—
9.6 +
—
6.9 +
—
37.5 +
44.6
—
6.7 +
—
39.5 —
28.6 +
161.5 +
—
10.9 +
19.3
—
2.5 +
—
52.4 47.0 21.3 +
—
10.7 +
—
2.6 —
3.0 =
—
60.4 +
—
15.0 +
45.5 143.1 =
—
11.5 —
17.2 —
13.2 +
—
21.3 —
56.7 +
—
18.5 -!
PA
—
159 —
65 +
—
25 44.6
—
29 +
—
56 —
80 161.5 +
—
315 =
19.3
—
330 —
67 +?
47.0 21.3 +
—
278 —
322 —
216 +
—
120 —
125 45.5 143.1 =
—
168 =
—
231 —
299 —
105 +
—
55 —
347 -
Zone 100
Designation
Position
Rating
Map
STF 2472
1909+3754
4E
2
Theta Lyr
1916+3808
4E
2
A. G. 377
1916+3825
4E
2
Bur 360
1919+3513
4E
5
Espin 1562
1919+4217
4E
1
STF 2507
1920+4422
4E
1
STF 3131
1921+3911
4E
4
h1395
1925+3708
4E
4
h1414
1934+3610
4E
8
h1421
1936+3536
4E
8
Scheiner 647
1936+3540
4E
8
Espin 1967
1936+4001
4E
7
Espin 490
1937+4327
4E
6
Scheiner 649
1937+3538
4E
8
Scheiner 658
1940+3831
4E
7
Scheiner 659
1941+3733
4E
7
Bur 1473
1948+3513
4E
8
19 Cyg
1951+3843
4E
9
Roe 40
1954+4234
4E
6
Scheiner 726
1955+3652
4E
10
h604
1956+4024
4E
9
Scheiner 743
1957+3646
4E
10
Component
A
B
C
D
E
A
B
C
A
B
A
B
C
A
B
C
A
B
C
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
a
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
- 66 -
Mag
8.26
10.75
9.20
10.50
12.90
4.36
9.10
11.00
9.63
10.40
8.57
10.16
10.51
9.27
9.90
12.65
8.72
10.88
9.90
9.05
10.97
9.22
9.54
10.37
9.27
10.62
9.38
10.48
8.11
9.46
10.33
10.31
10.11
10.01
12.80
10.63
11.11
10.66
11.13
10.63
10.74
10.56
11.70
10.94
5.18
10.47
9.12
10.47
10.28
12.20
7.37
9.44
10.39
10.52
Separation
—
21.8 +
75.2 +
79.0 =
52.0 +
—
100.2 +!
100.7 +
—
9.8 +
—
5.6 36.9 +
—
5.6 30.0
—
24.4 +
27.8 +
—
9.6 +
—
2.8 54.0 —
14.4 —
14.5 —
28.1
—
23.9
—
64.3 +
16.4
—
24.2 —
14.3 —
14.8 +
—
0.9 =
25.7 +
—
55
—
9.2 —
7.6 +
—
70.5 =
—
29.5 +
PA
—
339 +
75.2 +
79.0 =
331 =
—
74 +
100.7 +
—
129 +
—
70 36.9 +
—
322 30.0
—
156 +
27.8 +
—
300 —
64 +
54.0 —
31 +
—
231 +
—
178
—
61
—
222 230
—
251 +?
—
139 -?
—
259 -?
—
20 +
25.7 +
—
106
—
339 —
13 +
—
93 =
—
37 -
Zone 100
Designation
Position
Rating
Map
STF 2610
1959+3532
4E
10
h1370
1908+4050
5E
1
A 152
1911+3701
5E
2
Scheiner 584
1914+3911
5E
2
Ali 1110
1916+3954
5E
2
h1391
1923+4059
5E
1
Espin 2179
1926+3658
5E
5
Espin 1663
1927+4129
5E
1
Scheiner 604
1929+3808
5E
4
Scheiner 605
1929+3609
5E
5
Scheiner 625
1933+3854
5E
7
Scheiner 630
1934+3610
5E
8
Scheiner 650
1937+3554
5E
8
Espin 1968
1939+4009
5E
7
Fox 29
1939+4138
5E
6
Scheiner 656
1940+3509
5E
8
Espin 1969
1943+3855
5E
7
Bpm 196
1943+4002
5E
7
Dawes 13
1945+4456
5E
6
Scheiner 680
1946+3815
5E
7
Scheiner 684
1948+3512
5E
10
Scheiner 685
1948+3817
5E
7
Scheiner 689
1949+3516
5E
10
Espin 1565
1949+4238
5E
6
Component
A
B
C
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
- 67 -
Mag
8.10
8.90
11.80
8.72
12.82
9.76
10.64
11.01
10.83
11.31
9.27
12.40
9.27
11.18
9.01
11.30
8.69
12.80
11.73
10.36
10.64
10.16
11.04
10.48
11.33
9.27
10.62
10.53
11.00
9.53
11.25
10.41
11.30
8.15
11.10
10.19
10.61
11.12
7.94
8.26
7.29
12.30
10.99
9.00
10.49
10.56
11.94
11.15
10.95
10.26
11.06
9.69
10.43
Separation
—
4.3 =
12.3 —
21.2
—
2.6 +
21.8 +
—
25.0 —
13.4
—
19.9
—
6.3
—
5.9
24.2
—
17.0 —
24.8
—
17.7 —
11.7
—
15.9 =
—
41.2
—
42.4 —
11.4 +
—
2.5 =
28.0 +
—
104.5 +
—
1.8 153.4 +
—
28.1 +
—
25.8 +
—
23.7 —
21.2 +
—
33.2 -
PA
—
296 12.3 —
301
—
3=
21.8 +
—
117 +
—
316
—
95
—
132
—
229
24.2
—
170 —
287
—
215 =
—
34
—
153 +
—
116
—
46 =
—
289 +
—
157 28.0 +
—
164 —
272 +
153.4 +
—
182 =
—
54 =
—
233 —
301 —
33 -
Zone 100
Designation
Position
Rating
Map
Espin 84
1949+3842
5E
9
Scheiner 698
1951+3650
5E
10
Scheiner 703
1952+3718
5E
10
Eta Cyg
1956+3505
5E
10
Scheiner 735
1956+3836
5E
9
Bur 1474
1957+4022
5E
9
STF 2448
1904+3544
2M
3
STF 2481
1911+3847
2M
2
A 1397
1932+3849
3M
7
A. G. 242
1953+3704
3M
10
STF 2607
1958+4215
3M
6
STF 2609
1959+3806
3M
9
Espin 1429
1901+4313
4M
1
STF 2453
1905+4007
4M
1
Espin 2035
1910+3849
4M
2
Bur 1286
1926+3555
4M
5
Scheiner 623
1932+3920
4M
7
Scheiner 666
1943+3840
4M
7
Bpm 201
1953+3846
4M
9
Scheiner 718
1954+3906
4M
9
Smart 109
1954+4436
4M
6
Scheiner 770
1959+3554
4M
10
Component
A
B
C
A
B
A
B
A
B
C
D
E
A
B
A
B
A
B
A
B
A
B
C
D
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
C
D
A
B
A
B
A
B
A
B
A
B
A
B
- 68 -
Mag
6.12
11.00
11.10
10.83
10.96
9.00
10.94
3.89
12.00
13.42
12.00
11.50
8.71
11.91
5.45
9.27
8.02
8.12
8.44
9.30
10.11
10.15
11.57
14.50
9.32
10.17
6.40
8.94
6.71
7.72
9.52
11.00
15.70
8.54
10.92
10.19
11.10
9.32
10.00
12.70
10.32
10.40
11.76
6.37
11.12
7.52
11.47
8.03
13.22
10.61
10.65
8.06
11.20
Separation
—
11.2 22.6 —
16.7
—
25.8
—
7.5 +
45.8 48.7 57.1 —
20.3 —
64 —
2.5 +
—
4.5 +
—
2.0 +
26.1 +
19.4
—
2.0 =
—
3.0 —
2.0 —
5.9 +
9.0
—
13.6 —
3.2 —
16.9 +!
6.2 37.6 +
—
25.9 =
—
22.6 —
28.6 -!
—
15.0
—
21.6 +
—
7.8 +
PA
—
161 +
22.6 —
23
—
5
—
208 45.8 48.7 245 —
132 —
315 —
191 —
203 —
98 +
26.1 +
19.4
—
178 —
290 —
22 —
10 =
9.0
—
87 —
173 —
49 -!!
6.2 37.6 +
—
122 —
320 —
273 -!
—
351
—
113 —
328 -
Zone 100
Designation
Position
Rating
Map
h2857
1911+4146
5M
1
Holmes 19
1913+3908
5M
2
Scheiner 585
Hipparcos
2770
1915+3820
5M
2
1930+3936
5M
4
Scheiner 611
1931+3555
5M
8
A 601
1946+4145
5M
6
A 1404
1946+3953
5M
7
Scheiner 711
1953+3757
5M
9
OS 391 rej
1957+4416
5M
6
Hough 450
1926+3849
3D
4
OS 378
1937+4101
3D
6
OS 383
1943+4043
3D
6
Hussey 1194
1928+3520
4D
5
OS 377
1936+3539
4D
8
OS 386
1948+3709
4D
10
OS 387
1949+3519
4D
10
STF 2469
1908+3855
5D
2
OS 384
1944+3819
5D
7
Component
A
B
C
A
B
A
B
A
B
A
B
A
B
C
A
B
C
D
A
B
A
B
C
A
B
C
A
B
A
B
C
D
A
B
C
A
B
C
A
B
A
B
A
B
C
A
B
C
- 69 -
Mag
7.91
13.40
12.08
10.89
13.69
8.77
11.60
9.13
12.85
9.81
11.76
9.96
10.90
10.90
7.53
8.30
11.76
11.28
9.44
11.92
7.92
10.51
12.78
8.10
9.25
12.20
7.45
8.62
6.71
7.97
11.00
10.00
9.41
9.70
10.48
8.94
9.42
10.17
7.82
8.64
6.66
7.32
7.61
8.89
12.10
7.18
7.90
11.00
Separation
—
14.4
36.6
—
11.9 —
14.6 —
14.2
—
20.3
—
0.9 6.0 +
—
0.2 =
19.6 =
21.5 —
21.9
—
16.2 32.1
—
1.0 +
29.6 —
1.4 +
166.5
—
0.8 +
45.2 =
68.3 —
0.9 =
29.5 —
0.9 +
25.2 —
0.8 —
0.6 +
—
1.2 37.7
—
1.1 +
60.0 +
PA
—
178
36.6
—
335 —
126 —
88
—
126
—
161 +
6.0 +
—
290 19.6 =
21.5 —
230
—
51 32.1
—
265 29.6 —
287 166.5
—
17 45.2 =
68.3 —
38 +
29.5 —
33 -?
25.2 —
70 —
140 +
—
127 +
37.7
—
195 60.0 +
Zone 100
Deep Sky Objects
Object
NGC 6819
NGC 6791
NGC 6792
Position
1941+4011
1921+3751
1921+4308
Rating
2M
5M
4D
Map
7
4
1
Type
Oc (I 1r)
Oc (I 2r)
Gal (SBb)
- 70 -
Specifications
Surface
Mag
Br
7.3
9.5
12.1
13.0
Population
150
300