Zone 100, Master Map
Normal View
+44°00'
Zone Master, Normal View, 10 deg FOV
+42°00'
c
+40°00'
e
f
ι
α
gVega
d
ζ1
ζ2
θ
Lyra
h
19h 00m
µ
18h 48m
i
18h 36m
+36°00'
δ1
δ2
Double Double
+38°00'
ε1
ε2
κ
18h 24m
18h 12m
18h 00m
Zone 100, Map 1
Normal Image
Espin 640
+44°00'
Espin 1421
Espin 1420
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+43°00'
Espin 1419
Espin 1417
Roe 18
h1328
STF 2298
STF 2255
STF 2282
STF 2304
OS 356 rej
STF 2267
NGC 6646
Soulie 208
18h 30m
18h 24m
18h 18m
18h 12m
18h 06m
18h 00m
+41°00'
+42°00'
Espin 473
Zone 100, Map 1
Mirror Image
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 640
+44°00'
Espin 1421
Espin 1420
+43°00'
Espin 1419
Espin 1417
Roe 18
h1328
STF 2298
+41°00'
STF 2255
Espin 1557
STF 2267
STF 2282
STF 2304
NGC 6646
18h 00m
+42°00'
Espin 473
18h 06m
18h 12m
18h 18m
18h 24m
18h 30m
Zone 100, Map 2
Normal Image
STF 2304
OS 356 rej
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2267
NGC 6646
Soulie 208
Espin 2569
Espin 2018
+38°00'
Hough 432
Jonckheere 757
θ
Espin 2664
Bur 420
+37°00'
STF 2338
+39°00'
NGC 6585
µ
+36°00'
Espin 183
κ
Popovic 78
18h 30m
18h 24m
18h 18m
18h 12m
18h 06m
18h 00m
Zone 100, Map 2
Mirror Image
STF 2267
STF 2304
NGC 6646
Soulie 208
NGC 6585
µ
+39°00'
Bur 417
Espin 2018
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 2569
STF 2338
+38°00'
Hough 432
Jonckheere 757
Bur 420
+37°00'
Espin 2664
θ
+36°00'
Espin 183
κ
Popovic 78
18h 00m
18h 06m
18h 12m
18h 18m
18h 24m
18h 30m
Zone 100, Map 3
Normal Image
Webb 7
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+44°00'
STF 2380
STF 3130
A 587
h1351
h1358
+43°00'
Bur 421
Espin 1429
+42°00'
Espin 1425
STF 2394
h1328
Hough 270
+41°00'
STF 2351
STF 2431
A. G. 225
Soulie 122
STF 2453
OS 356 rej
NGC 6675
NGC 6646
Bur 51
19h 00m
18h 54m
18h 48m
Epsilon 1 Lyr
ε1 Double Double
18h 42m
18h 36m
18h 30m
Zone 100, Map 3
Mirror Image
Webb 7
+44°00'
STF 2380
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 3130
A 587
h1351
Espin 1429
+42°00'
Espin 1425
STF 2394
h1328
+43°00'
h1358
Bur 421
Hough 270
+41°00'
STF 2351
STF 2431
A. G. 225
Soulie 122
OS 356 rej
NGC 6675
NGC 6646
18h 30m
18h 36m
Epsilon 1 and 2 Lyrε1
18h 42m
Bur 51
Double Double
18h 48m
18h 54m
19h 00m
Zone 100, Map 4
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
Epsilon 2 Lyr
Epsilon 1 and 2 Lyr
+39°30'
Bur 50
Soulie 208
+39°00'
Ball 35
OSS 171
α
Alpha Lyr
+38°00'
+38°30'
STF 2338
18h 42m
18h 39m
18h 36m
18h 33m
18h 30m
Zone 100, Map 4
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
Epsilon 2 Lyr
Epsilon 1 and 2 Lyr
+39°30'
Bur 50
Soulie 208
ε1
ε2
+39°00'
Ball 35
OSS 171
α
Alpha Lyr
+38°00'
+38°30'
STF 2338
18h 30m
18h 33m
18h 36m
18h 39m
18h 42m
Zone 100, Map 5
Normal Image
+36°30'
+37°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
Soulie 364
+36°00'
NGC 6688
+35°30'
STF 2362
STF 2378
18h 42m
18h 39m
18h 36m
18h 33m
18h 30m
Zone 100, Map 5
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
+36°30'
+37°00'
Bur 420
Soulie 364
STF 2362
STF 2378
18h 30m
18h 33m
18h 36m
18h 39m
18h 42m
+35°30'
+36°00'
NGC 6688
Zone 100, Map 6
Normal Image
Bur 51
ε1
ε2
Weisse 33
+39°30'
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
+38°30'
+39°00'
STF 2392
STF 2393
A. G. 226
+38°00'
STF 2427
19h 00m
18h 57m
18h 54m
18h 51m
18h 48m
ζ1
18h 45m
Zone 100, Map 6
Mirror Image
Bur 51
+39°30'
Epsilon 1 and 2 Lyr
ε1
ε2
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
Epsilon 1 Lyr
Weisse 33
+38°30'
+39°00'
STF 2392
STF 2393
A. G. 226
+38°00'
STF 2427
Zeta Lyr
ζ1
18h 45m
18h 48m
18h 51m
18h 54m
18h 57m
19h 00m
Zone 100, Map 7
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2393
A. G. 226
Espin 2672
+38°00'
STF 2427
A. G. 227
ζ1
ζ2
Zeta Lyr
Delta 2 Lyr δ2
δ1
Delta 1 Lyr
Stephenson 1
Espin 241
+37°00'
Bur 137
Lyra
Soulie 364
STF 2429
NGC 6688
+36°00'
Espin 2031
h1354
A 1385
STF 2448
STF 2386 rej STF 2378
+35°00'
PK 64+15.1
STF 2372
Scheiner 573
STF 2390
19h 00m
18h 54m
18h 48m
18h 42m
Zone 100, Map 7
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
A. G. 226
STF 2393
+38°00'
STF 2427
ζ1
ζ2
Zeta Lyr
+37°00'
Bur 137
Stephenson 1
δ1
Lyra
Delta 1 Lyr
Espin 241 δ2
Delta 2 Lyr
Soulie 364
A 1385
STF 2378
Espin 2031
+36°00'
STF 2429
h1354
NGC 6688
STF 2386 rej
+35°00'
PK 64+15.1
STF 2372
Scheiner 573
18h 42m
STF 2390
18h 48m
18h 54m
19h 00m
Zone 100
Index
62 Double Stars, 1 Planetary Nebula,
1 Open Cluster, 4 Galaxies
A
A 1385...................................................... 40
A 587 ........................................................ 20
A. G. 225 ................................................. 17
A. G. 226 ................................................. 31
Alpha Lyr................................................. 25
Espin 2031 ............................................... 41
Espin 241 ................................................. 41
Espin 2569 ............................................... 10
Espin 2664 ............................................... 10
Espin 473 ................................................... 3
B
H
Ball 35 ...................................................... 24
Bur 137 .................................................... 42
Bur 420 .................................................... 11
Bur 421 .................................................... 19
Bur 50....................................................... 24
Bur 51....................................................... 32
h1328 .......................................................... 5
h1351 ........................................................ 20
h1354 ........................................................ 37
h1358 ........................................................ 16
Hough 270 ............................................... 22
Hough 432 ............................................... 13
D
J
Delta 1 Lyr............................................... 38
Delta 2 Lyr............................................... 40
Jonckheere 757 ....................................... 11
N
E
NGC 6585................................................ 14
NGC 6646................................................ 14
NGC 6675................................................ 23
NGC 6688................................................ 28
Epsilon 1 and 2 Lyr ................................ 29
Epsilon 1 Lyr ........................................... 33
Epsilon 2 Lyr ........................................... 34
Espin 1417 ................................................. 5
Espin 1419 ................................................. 6
Espin 1420 ................................................. 6
Espin 1421 ................................................. 8
Espin 1425 ............................................... 15
Espin 183 ................................................. 12
Espin 2018 ................................................. 9
O
OS 356 rej ................................................ 17
OSS 171 ................................................... 26
P
PK 64+15.1.............................................. 43
Popovic 78 ............................................... 12
-1-
Zone 100
R
STF 2380 ................................................. 15
STF 2386 rej............................................ 39
STF 2392 ................................................. 35
STF 2393 ................................................. 31
STF 2394 ................................................. 19
STF 2427 ................................................. 33
STF 2429 ................................................. 38
STF 2431 ................................................. 16
STF 3130 ................................................. 21
Roe 18 ........................................................ 3
S
Soulie 122 ................................................ 18
Soulie 208 ................................................ 26
Soulie 364 ................................................ 28
Stephenson 1 ........................................... 42
STF 2267 ................................................... 7
STF 2282 ................................................... 4
STF 2298 ................................................... 7
STF 2304 ................................................... 4
STF 2338 ................................................... 9
STF 2351 ................................................. 21
STF 2362 ................................................. 27
STF 2378 ................................................. 37
W
Webb 7 ..................................................... 18
Weisse 33................................................. 32
Z
Zeta Lyr ................................................... 36
-2-
Zone 100
Zone 100, Map 1
Double Stars
Easy
Espin 473
ADS 11179; SAO 47311
Rating: 4 E
Position: 1813+4251
A
B
C
Magnitude
10.14
10.36
11.50
Separation
—
31.1 40.3
PA
—
99 123
Year
—
1984
1962
Spectra
F5
F5
Colors
W
W
No
Notes:
AB 1893: 32.0 @ 101. 9 measurements.
AC 1 measurement.
The stars have different proper motions and Hipparcos gives different distances (182
and 279 light years).
Observations:
C8 at 104x. It is overpowered by an 8m triangle nearby.
Roe 18
Position: 1806+4214
A
B
Magnitude
9.96
11.59
Rating: 5 E
Separation PA
—
—
14.9 172 +
Year
—
1991
Notes:
1909: 15.9 @ 171. 3 measurements.
Observations:
C8 at 104x.
Distance (LY): 144
Total luminosity (Suns): 0.24
-3-
Spectra
Colors
Y
W
Zone 100
Moderate
STF 2282
ADS 11074; HD 165941; SAO 47220
Rating: 2 M
Position: 1806+4021
A
B
Magnitude
7.44
8.40
Separation PA
—
—
2.6 +
83 -
Year
—
1998
Spectra
AO V
Colors
G
O
Notes:
1831: 2.4 @ 93. 55 measurements.
Observations:
C8 at 280x. Some report both bluish, or W and W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 3.28 miles.
Distance (LY): 810
Total luminosity (Suns): 83
STF 2304
ADS 11238; SAO 47358
Rating: 3 M
Position: 1817+4015
A
B
Magnitude
8.33
9.43
Separation PA
—
—
5.3 +
70 +
Notes:
1830: 4.9 @ 69. 19 measurements.
Observations:
C8 at 104x.
-4-
Year
—
1991
Spectra
K0
Colors
Y
O
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.8 inches.
Separation: AB = 6.12 miles.
Distance (LY): 740
Total luminosity (Suns): 24
h1328
SAO 47557
Rating: 4 M
Position: 1831+4153
A
B
Magnitude
8.94
12.10
Separation PA
—
—
21.6 110 -
Year
—
1991
Spectra
K2
Colors
W
dB
Notes:
1893: 21.7 @ 112. 6 measurements.
Observations:
C8 at 104x. It forms the SE vertex of a 9m triangle.
Faint but rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 28.4 inches.
Separation: AB = 24.9 miles.
Distance (LY): 740
Total luminosity (Suns): 10.62
Espin 1417
ADS 11115; SAO 47261
Rating: 5 M
Position: 1809+4314
A
B
C
Magnitude
9.14
10.40
14.40
Separation
—
7.3
3.2
PA
—
235
276
Notes:
AB and AC, 1 measurement.
-5-
Year
—
1915
1915
Spectra
F8
Colors
W
?
No
Zone 100
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.0 inches.
Separation: AB = 3.87 miles; AC = 1.69 miles.
Distance (LY): 340
Total luminosity (Suns): 2.64
Espin 1419
ADS 11162
Rating: 5 M
Position: 1812+4355
A
B
Magnitude
10.26
11.40
Separation PA
—
—
8.1 +! 270 -
Year
—
1989
Spectra
Colors
W
W?
Notes:
1893: 4.5 @ 252. 3 measurements.
Observations:
C11 at 115x.
Espin 1420
ADS 11218; SAO 47341
Rating: 5 M
Position: 1816+4417
A
B
C
Magnitude
10.17
11.30
16.63
Separation
—
8.6
19.6
PA
—
68
7
Year
—
1915
1915
-6-
Spectra
A0
Colors
W
O
No
Zone 100
Notes:
AB and AC, 1 measurement.
Observations:
C11 at 115x.
Difficult
STF 2267
ADS 11991; HD 164941
Rating: 2 D
Position: 1802+4011
A
B
Magnitude
7.86
8.04
Separation PA
—
—
0.7 266 +
Year
—
1999
Spectra
A3
Colors
W
W
Notes:
1830: 1.4 @ 234. Over 100 measurements.
Observations:
C11 at 560x. Nice even pair.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.33 inches.
Separation: AB = 3,115 feet.
Distance (LY): 545
Total luminosity (Suns): 31
STF 2298
ADS 11174; HD 167303; SAO 47304
Rating: 3 D
Position: 1813+4123
A
B
C
Magnitude
8.81
10.07
10.40
Separation
—
1.9 76.3 -
PA
—
175 40 =
-7-
Year
—
1998
1924
Spectra
F5
Colors
W
O
W
Zone 100
Notes:
AB 1831: 2.4 @ 186. 39 measurements.
AC 1881: 78.0 @ 40. 3 measurements.
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.7 inches.
Separation: AB = 1.22 miles; AC = 49.2 miles.
Distance (LY): 414
Total luminosity (Suns): 11
Espin 1421
ADS 11229; HD 168153; SAO 47348
Rating: 5 D
Position: 1816+4423
A
B
Magnitude
8.61
11.69
Separation PA
—
—
11.2 +
345 -
Year
—
1991
Notes:
1915: 9.4 @ 348. 2 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 35.6 inches.
Separation: AB = 11.0 miles.
Distance (LY): 630
Total luminosity (Suns): 11.8
-8-
Spectra
K
Colors
Y
?
Zone 100
Zone 100, Map 2
Double Stars
Easy
Espin 2018
ADS 11091; SAO 66660
Rating: 4 E
Position: 1808+3904
A
B
Magnitude
8.94
9.90
Separation PA
—
—
5.9 +
235 -
Year
—
1942
Spectra
M0
Colors
W
W
Notes:
1923: 5.5 @ 239. 4 measurements.
Observations:
C8 at 206x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 42.3 inches.
Separation: AB = 3,062 feet.
Distance (LY): 64
Total luminosity (Suns): 0.12
STF 2338
KP Lyr (B); ADS 11423
Rating: 4 E
Position: 1831+3840
A
B
C
Magnitude
9.30
11.20
9.62
Separation
—
12.6 76.6 -
PA
—
302 +
27 -
-9-
Year
—
1982
1991
Spectra
K2
Ma
Colors
Y
?
?
Zone 100
Notes:
AB 1829: 13.4 @ 301. 13 measurements. B is a semi-regular variable. In the WDS,
the PA of B shows a quadrant reversal.
AC 1863: 77.4 @ 29. 13 measurements.
Observations:
C8 at 104x. D was never detected (night of marginal seeing).
Espin 2569
Position: 1811+3904
A
B
Magnitude
11.03
11.50
Rating: 5 E
Separation PA
—
—
9.3 =
275 +
Year
—
1932
Spectra
Colors
W
?
Notes:
1932: 9.3 @ 274. 2 measurements.
Observations:
C8 at 104x.
Espin 2664
ADS 11216
Rating: 5 E
Position: 1816+3723
A
B
Magnitude
10.39
10.36
Separation PA
—
—
9.7 =
82 +
Year
—
1934
Notes:
1923: 9.7 @ 80. 5 measurements.
Observations:
C11 at 115x.
Distance (LY): 49
Total luminosity (Suns): 0.026
- 10 -
Spectra
Colors
W
W
Zone 100
Bur 420
ADS 11406; SAO 67033
Rating: 5 E
Position: 1830+3710
A
B
C
Magnitude
9.64
11.28
12.41
Separation
—
1.7 =
20.7 -
PA
—
277 +
199 +
Year
—
1994
1925
Spectra
F2
Colors
W
No
W?
Notes:
AB 1873: 1.7 @ 276. 12 measurements.
AC 1880: 21.6 @ 198. 2 measurements.
Observations:
C8 at 104x. The dominant stars in the field form a leaning "L". This pair is the
second star from the top of the "L".
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.8 inches.
Separation: AB = 3,696 feet; AC = 8.62 miles.
Distance (LY): 267
Total luminosity (Suns): 1.4
Moderate
Jonckheere 757
ADS 11019; SAO 66594
Rating: 4 M
Position: 1804+3805
A
B
Magnitude
9.41
10.00
Separation PA
—
—
3.0 +
327 +
Notes:
1912: 1.9 @ 324. 8 measurements.
Observations:
C11 at 115x.
- 11 -
Year
—
1954
Spectra
Colors
W
W
Zone 100
Distance (LY): 204
Total luminosity (Suns): 0.89
Popovic 78
Ali 140
Rating: 5 M
Position: 1812+3507
A
B
Magnitude
11.04
11.64
Separation PA
—
—
14.1 +
250 =
Year
—
1990
Spectra
Colors
W
W
Notes:
1972: 13.9 @ 250. 3 measurements.
Observations:
C8 at 104x.
Distance (LY): 84
Total luminosity (Suns): 0.03
Difficult
Espin 183
ADS 11097; SAO 66665
Rating: 5 D
Position: 1808+3642
A
B
Magnitude
9.31
12.60
Separation PA
—
—
8.9 166 +
Year
—
1924
Notes:
1904: 9.3 @ 164. 2 measurements.
Observations:
C11 at 115x. This pair is the north vertex of a flat 9m triangle.
- 12 -
Spectra
F5
Colors
W
?
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.1 inches.
Separation: AB = 2.63 miles.
Distance (LY): 190
Total luminosity (Suns): 0.026
Hough 432
ADS 11320; HD 169646; SAO 66936
Rating: 5 D
Position: 1824+3844
A
B
C
Magnitude
6.41
12.90
12.90
Separation
—
17.1 61.5
PA
—
288 43
Year
—
1934
1960
Spectra
K2 III
Colors
yO
No
?
Notes:
AB 1892: 17.2 @ 289. 5 measurements. The primary is an infra-red source.
AC 1 measurement.
Hough also mentioned an 11m companion: 100 @ 44.
Observations:
C8 at 104x. Star B was not verified.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 49.5 inches.
Separation: AB = 22.9 miles; AC = 82.5 miles.
Distance (LY): 860
Total luminosity (Suns): 161.4
- 13 -
Zone 100
Deep Sky Objects
Difficult
NGC 6585
Other Names: UGC 11159
Rating: 5 D
Position: 1812+3938
Type: Gal
Surface brightness: 12.4
Class: SBc
Dimensions: 1.9' x 0.4'
Magnitude: 12.8
PA: 50
Observations:
C11 at 98x. Very faint spindle with a slightly brighter core.
Radial velocity (km/sec): +2,835
NGC 6646
Other Names: UGC 11258; H II 907
Rating: 5 D
Position: 1830+3952
Type: Gal
Surface brightness: 12.7
Class: Sa
Dimensions: 1.2' x 1'
Magnitude: 12.6
PA: 50
Observations:
C11 at 98x. Very faint and uniform disc with no concentration to a core.
Radial velocity (km/sec): +5,764
- 14 -
Zone 100
Zone 100, Map 3
Double Stars
Easy
STF 2380
ADS 11616; HD 173399; SAO 47727
Rating: 3 E
Position: 1843+4455
A
B
Magnitude
7.17
8.99
Separation PA
—
—
25.7 8-
Year
—
1991
Spectra
G5 III
F2 V
Colors
Y
bW
Notes:
1831: 25.8 @ 10. 35 measurements. Hipparcos/Tycho data show different distances
for these stars; they may be optical. However, the stars exhibit a small common proper
motion.
Observations:
C8 at 83x. Webb saw them as Y and bW.
C11 at 115x. A nice orange star lies 10 min at pa 290. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39.0 inches; B = 12.4 inches.
Separation: AB = 16.2 miles.
Distance (LY): 403
Total luminosity (Suns): 20
Espin 1425
ADS 11682
Rating: 3 E
Position: 1847+4303
A
B
Magnitude
9.89
10.30
Separation PA
—
—
4.7 +
234 +
- 15 -
Year
—
1996
Spectra
Colors
W
W
Zone 100
Notes:
1915: 4.6 @ 232. 6 measurements.
Observations:
C11 at 115x.
h1358
Webb; ADS 11648; HD 176317; SAO 47953
Rating: 3 E
Position: 1858+4324
A
B
Magnitude
9.13
10.26
Separation PA
—
—
14.6 +
264 -
Year
—
1986
Spectra
A2
Colors
W
B
Notes:
1873: 14.2 @ 265. 7 measurements.
Hipparcos/Tycho mission data show different distances for these stars (3,250 and
1,630 light years); they may be optical.
Observations:
C8 at 104x. A 9m star lies 100" W.
STF 2431
ADS 11910; HD 176502; SAO 47965
Rating: 3 E
Position: 1859+4040
A
B
Magnitude
6.23
9.60
Separation PA
—
—
19.1 +
236 =
Year
—
1999
Spectra
B3 V
A5 V
Notes:
1829: 18.8 @ 236. 22 measurements. Star A is a spectroscopic binary.
Observations:
C11 at 115x. Nicely nested inside a triangle of 10-11m stars. Rich field.
- 16 -
Colors
W
V?
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.6 inches; B = 7.50 inches.
Separation: AB = 28.3 miles.
Distance (LY): 950
Total luminosity (Suns): 250
OS 356 rej
HD 171485; SAO 47587
Rating: 4 E
Position: 1833+4009
A
B
C
Magnitude
7.25
9.47
10.87
Separation
—
29.9 -!
49.4 -
PA
—
303 8+
Year
—
1991
1990
Spectra
F5
K0
Colors
W
W
dB
Notes:
AB 1843: 40.3 @ 308. 26 measurements.
AC 1892: 52.80 @ 3. 13 measurements.
Hipparcos/Tycho data show different distances for these stars (127 and 2,670 light
years); they may be optical. The stars have different proper motions.
Observations:
C8 at 104x. It forms a nice triangle.
A. G. 225
ADS 11563
Rating: 4 E
Position: 1840+4035
A
B
C
Magnitude
10.28
10.36
13.86
Separation
—
6.5 10.4
PA
—
355 =
240
Notes:
AB 1900: 6.6 @ 355. 9 measurements.
AC 1 measurement.
- 17 -
Year
—
1991
1917
Spectra
Colors
Y
W
?
Zone 100
Observations:
C11 at 115x. C was very difficult.
Distance (LY): 84
Total luminosity (Suns): 0.08
Soulie 122
Position: 1844+4020
A
B
Magnitude
10.74
11.95
Rating: 4 E
Separation PA
—
—
18.0 152 -
Year
—
1991
Spectra
Colors
W
W?
Notes:
1892: 18.2 @ 155. 5 measurements.
Observations:
C11 at 115x.
Webb 7
ADS 11648; SAO 47759
Rating: 4 E
Position: 1845+4458
A
B
Magnitude
9.55
10.35
Separation PA
—
—
11.4 49 -
Notes:
1893: 11.5 @ 50. 5 measurements.
Observations:
C11 at 115x.
- 18 -
Year
—
1991
Spectra
A5
Colors
W
O?
Zone 100
STF 2394
ADS 11665; SAO 47783
Rating: 4 E
Position: 1845+4202
A
B
Magnitude
9.61
9.96
Separation PA
—
—
6.9 +
203 +
Year
—
1991
Spectra
Colors
W
W
Notes:
1829: 6.6 @ 202. 19 measurements.
Observations:
C8 at 206x. Faint, it was hard to locate (it forms the SW vertex of a 9m right
triangle). Very rich field.
Distance (LY): 91
Total luminosity (Suns): 0.19
Bur 421
SAO 47868
Rating: 4 E
Position: 1852+4323
A
B
C
Magnitude
9.33
9.89
9.58
Separation
—
1.1 +
42.0 +
PA
—
298 +
227 -
Year
—
1999
1984
Notes:
AB 1877: 1.0 @ 290. 15 measurements.
AC 1893: 39.0 @ 231. 9 measurements.
Observations:
C8 at 104x. Very rich and bright field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.2 inches.
Separation: AB = 3,432 feet; AC = 24.8 miles.
Distance (LY): 379
Total luminosity (Suns): 3.76
- 19 -
Spectra
F8
Colors
W
No
Y
Zone 100
A 587
ADS 11894; SAO 47954
Rating: 4 E
Position: 1858+4406
A
B
Magnitude
9.38
10.32
Separation PA
—
—
42.2 +
308 +
Year
—
1991
Spectra
K2
F8
Colors
O
?
Notes:
1894: 40.5 @ 305. 9 measurements. May be optical because Hipparcos gives
different distances (520 and 64 light years).
Observations:
C8 at 104x.
h1351
Position: 1848+4351
A
B
Magnitude
10.65
10.73
Rating: 5 E
Separation PA
—
—
24.1 +
350 -
Year
—
1988
Spectra
G4 V
Colors
W
W
Notes:
1905: 23.4 @ 353. 3 measurements.
Abt claims to have found six very faint comes.
Observations:
C8 at 104x. This pair is cupped in the "hands" of the field— two very nice regions
that flank it just off a medium power field to the left and right.
Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches.
Separation: AB = 6.39 miles.
Distance (LY): 170
Total luminosity (Suns): 0.2
- 20 -
Zone 100
STF 3130
ADS 11863; HD 176003; SAO 47928
Rating: 5 E
Position: 1856+4413
A
B
Magnitude
6.90
10.20
Separation PA
—
—
181.1 =
311 =
Year
—
1908
Spectra
A2
Colors
W
bW
Notes:
1880: 181.1 @ 311. 2 measurements.
Observations:
C8 at 104x. It lies 18 min NNE of 13 Lyr (4.1m M5 III), also designated as R Lyr.
Its spectrum shows absorption by water (!) and it emits strongly in the infra-red. It is a
spectroscopic binary with a period of 41.3 days; a very close visual companion orbits in 5
years. 13 Lyr belongs to the Hyades Group.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.56 inches.
Separation: AB = 22o miles.
Distance (LY): 780
Total luminosity (Suns): 84
Moderate
STF 2351
ADS 11500; SAO 47639
Rating: 3 M
Position: 1836+4116
A
B
Magnitude
6.92
7.70
Separation PA
—
—
5.3 +
340 =
Year
—
1993
Spectra
A0 V
Colors
W
W
Notes:
1830: 5.2 @ 340. 91 measurements. The stars share a small common proper motion.
Observations:
C8 at 83x. Webb said, "Minute, but pretty."
- 21 -
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 5.62 miles.
Distance (LY): 680
Total luminosity (Suns): 90
Hough 270
ADS 11840; HD 175740; SAO 47909
Rating: 5 M
Position: 1855+4136
A
B
C
Magnitude
5.46
12.60
11.60
Separation
—
8.7 +
23.7 +
PA
—
303 40 +
Year
—
1934
1934
Spectra
G8 III
Colors
Y!
No
?
Notes:
AB 1887: 8.2 @ 307. 4 measurements. The primary is an infra-red source.
AC 1887: 23.2 @ 39. 5 measurements.
There is a closer companion at 8.2 @ 307.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 43.5 inches.
Separation: AB = 3.63 miles; AC = 9.91 miles.
Distance (LY): 268
Total luminosity (Suns): 36.1
- 22 -
Zone 100
Deep Sky Objects
Difficult
NGC 6675
Other Names: UGC 11305
Position: 1837+4004
Type: Gal
Surface brightness: 13.2
Rating: 5 D
Class: Sbc
Dimensions: 2.0' x 1.4'
Magnitude: 12.4
PA: 130
Observations:
C8 at 104x. It was an extremely faint and unfocusable "star" that yielded no details.
C11 at 193x. It showed as a very faint oval. A 9m star to the S is a problem, and you
should nudge it out of the field if you can, or use an occulting bar. No obvious nucleus.
A short distance away, at 1853+2636, lies a lovely asterism worth looking up.
Radial velocity (km/sec): +2,495
- 23 -
Zone 100
Zone 100, Map 4
Double Stars
Easy
Bur 50
SAO 67192
Rating: 4 E
Position: 1838+3935
A
B
Magnitude
9.56
10.42
Separation PA
—
—
73.1 =
328 -
Year
—
1984
Spectra
F
Colors
W
bW
Notes:
1892: 73.1 @ 330. 7 measurements.
There are two other very faint comes (13.5m), one at 22.6 @ 5 and the other at 68.6
@ 328.
Observations:
C8 at 104x. A 6.1m star 4 min N is tough!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.3 inches.
Separation: AB = 25.1 miles.
Distance (LY): 220
Total luminosity (Suns): 1.3
Ball 35
HD 173383; SAO 67287
Rating: 4 E
Position: 1843+3918
A
B
Magnitude
6.37
10.22
Separation PA
—
—
61 +
189 -
- 24 -
Year
—
1987
Spectra
K5
Colors
Y!
O
Zone 100
Notes:
1877: 60 @ 191. 3 measurements.
A is a spectroscopic binary.
This system may be optical as Hipparcos shows different distances (1,360 and 240
light years).
Observations:
C11 at 115x.
Alpha Lyr
Vega; STF 3136 (BC); SII 9; 3 Lyr; ADS 11510; H V 39
Rating: 5 E
Position: 1837+3846
A
B
C
D
Magnitude
0.03
9.5
11
9.5
Separation
—
73.0 +!
51.5 +
96.4 -!
PA
—
180 +
293 39 =
Year
—
1985
1881
1985
Spectra
A0 Va
Colors
bW
W?
?
?
Notes:
AB 1836: 43.0 @ 138. 45 measurements.
AC 1864: 46.9 @ 299. 3 measurements.
AD 1905: 124.5 @ 39. 3 measurements.
Recent measurements of IR radiation from Vega by IRAS have detected solid matter
which could be protoplanetary material forming around the star.
Observations:
C8 at 206x with Mask. To glimpse C and E, I had to nudge Vega out of the field.
Another star, orbiting C at 31" @ 35, was never detected.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 2.88 miles; AC = 2.03 miles; AD = 3.80 miles.
Distance (LY): 25.3
Total luminosity (Suns): 53
- 25 -
Zone 100
Moderate
OSS 171
HD 171384; SAO 67097
Rating: 4 M
Position: 1833+3850
A
B
C
D
E
F
a
Magnitude
6.94
8.02
12.60
12.50
12.30
10.57
Separation
—
147.3 +
70.8
95.6
113.3
132.2
85.9
PA
—
327 +
225
247
227
343
139
Year
—
1986
Spectra
F8
G5
1982
1982
1982
Colors
W
W
?
?
No
No
yO
Notes:
AB 1829: 141.6 @ 319. 16 measurements. May be optical because Hipparcos gives
different distances (177 and 320 light years).
AC, AD, AE and AF, 1 measurement.
Aa: 7 measurements.
Observations:
C8 at 104x.
C11 at 115x.
Soulie 208
HD 171518; SAO 67108
Rating: 5 M
Position: 1834+3934
A
B
C
Magnitude
8.56
12.00
11.81
Separation
—
13.1
64
PA
—
74
3
Notes:
AB and AC, 1 measurement.
Observations:
C11 at 115x. B was very difficult.
- 26 -
Year
—
1982
1982
Spectra
G5
Colors
Y
?
W
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.1 inches.
Separation: AB = 16.2 miles; AC = 78.9 miles.
Distance (LY): 790
Total luminosity (Suns): 19
Zone 100, Map 5
Double Stars
Easy
STF 2362
ADS 11534; HD 172394; SAO 67198
Rating: 2 E
Position: 1838+3603
A
B
Magnitude
7.21
8.47
Separation PA
—
—
4.3 +
186 +
Year
—
1997
Notes:
1830: 4.0 @ 180. 46 measurements.
Observations:
C8 at 104x. Webb saw them as yW and B. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.72 inches.
Separation: AB = 2.13 miles.
Distance (LY): 318
Total luminosity (Suns): 13
- 27 -
Spectra
A5
Colors
Y
bW
Zone 100
Soulie 364
SAO 67261
Rating: 5 E
Position: 1842+3629
A
B
Magnitude
9.93
11.57
Separation PA
—
—
22.0 +
171 -
Year
—
1991
Spectra
Colors
O
Y
Notes:
1933: 21.7 @ 174. 4 measurements.
This system may be optical as Hipparcos shows different distances (158 and 210 light
years).
Observations:
C11 at 115x. Nice field.
Deep Sky Objects
Difficult
NGC 6688
Other Names: UGC 11324
Rating: 4 D
Position: 1841+3617
Type: Gal
Surface brightness: 13.6
Class: SA0+
Dimensions: 1.7'
Magnitude: 12.6
Observations:
C11 at 98x. Very small, faint and uniform disc without any central brightening.
Radial velocity (km/sec): +5,462
- 28 -
Zone 100
Zone 100, Map 6
Double Stars
Easy
Epsilon 1 and 2 Lyr
Rating: 3 E
Sh 277; 4 and 5 Lyr; SI 37; STF 2382; ADS 11635; HD 173582; SAO 67310
Position: 1844+3940
A
B
Magnitude
4.70
4.60
Separation PA
—
—
210.5 +
174 +
Year
—
1998
Spectra
F1 V
A8 V
Colors
W
yW
Notes:
AB-CD 1835: 207.1 @ 173. 60 measurements.
This wonderful system is part of the Hyades Group.
The AB distance is at least 155 AU, CD is at least 165 AU, and the AB - CD distance
is at least 13,000 AU. The orbital period for Epsilon 1 may be 1,165 years; for Epsilon 2,
585 years (both by Guntzel-Lingner, 1956). The separation and PA of the two Epsilons
has not changed since discovery.
Observations:
C8 at 104x. Between them lie three faint stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.70 inches; B = 6.30 inches.
Separation: Aa x Bb = 53.2 miles; Aa = 3,350 feet; Bb = 3,566 feet.
Distance (LY): 162
Total luminosity (Suns): 86
See the sketches, next page.
- 29 -
Zone 100
ε Lyr (ΣI 37)
Double double; W, W; 4.6 / 4.7; 211” @ 174
Observed with C8 on 8/10/99
Magnification: 104x
ε1 Lyr (Σ2383) and ε2 Lyr
Double star; W, W; 4.7 / 5.8; 3” @ 348
Double star; W, W; 5.3 / 5.5; 3” @ 82
Observed with C8 on 8/10/99
Magnification: 270x
- 30 -
Zone 100
A. G. 226
Position: 1850+3818
A
B
Magnitude
10.01
10.05
Rating: 3 E
Separation PA
—
—
26.1 +
54 =
Year
—
1984
Spectra
F8
F8
Colors
W
W
Notes:
1903: 25.9 @ 54. 9 measurements. The stars share common proper motion
althought Hipparcos gives different distances (252 and 127 light years).
Observations:
C8 at 104x. A pair of stars (8m, 10m) lies at the N end of the field and adds a neat
touch to the view.
STF 2393
ADS 11656
Rating: 4 E
Position: 1845+3819
A
B
C
Magnitude
7.60
11.28
11.30
Separation
—
15.9 +
182.8 +
PA
—
23 =
301 +
Year
—
1991
1985
Spectra
K5 III
Colors
O!
W?
W?
Notes:
AB 1829: 10.4 @ 23. 18 measurements.
AC 1880: 178.2 @ 300. 4 measurements.
Observations:
C8 at 104x. Not as difficult as I expected.
C11 at 115x. C was difficult. Nice color in A. Webb saw R. A very nice field lies to
the east.
- 31 -
Zone 100
Weisse 33
SAO 67502
Rating: 4 E
Position: 1852+3926
A
B
Magnitude
8.94
8.95
Separation PA
—
—
100.0 =
330 -?
Year
—
1991
Spectra
A0
Colors
W
W
Notes:
1925: 100.0 @ 151. 9 measurements. Quadrant reversal?
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.47 inches.
Separation: AB = 153 miles.
Distance (LY): 980
Total luminosity (Suns): 43
Bur 51
ADS 11668
Rating: 5 E
Position: 1846+3942
A
B
C
BC
Magnitude
9.00
11.95
11.50
Separation PA
—
—
74.2 185 =
6.5 +
297 -
Year
—
1991
Spectra
M0
Colors
O
bW?
?
1916
Notes:
AB 1894: 74.8 @ 185. 8 measurements.
BC 1898: 6.1 @ 297. 4 measurements.
Observations:
C8 at 280x, 697x.. Use high magnification to get Epsilon Lyr out of the field and
make it possible to split BC.
- 32 -
Zone 100
STF 2427
ADS 11893; SAO 67643
Position: 1858+3813
A
B
C
Magnitude
9.40
9.50
10.70
Rating: 5 E
Separation
—
52.6 +!
58.8 +
PA
—
60 62 -
Year
—
1967
1957
Spectra
K0
Colors
Y
?
?
Notes:
AB 1828: 44.2 @ 64. 22 measurements. The stars show similar proper motions.
AC 1891: 55.8 @ 64. 8 measurements.
Observations:
C8 at 83x. Faint, but easy. Webb wrote, "An interesting group." SAO 67642 (5.9m
B7IV, 330 times brighter than the Sun and 980 light years away) 2 min NW is
overwhelming. It is a spectroscopic binary with a period of only 2.911557 days— in
fact, the companion might be a neutron star, since the masses compute to be 5 and 2 Suns
respectively.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 26.3 inches.
Separation: AB = 7.30 miles; AC = 8.16 miles.
Distance (LY): 89
Total luminosity (Suns): 0.25
Moderate
Epsilon 1 Lyr
4 Lyr; STF 2382; ADS 11635; HD 173582; SAO 67310
Astronomical League Program: Double Star Club
Rating: 1 M
Position: 1844+3940
A
B
Magnitude
4.67
5.81
Separation PA
—
—
2.7 348 -!
Year
—
1999
Spectra
F1 V
F1 V
Colors
W
W
Notes:
1821: 3.4 @ 28. Over 100 measurements. The stars share common proper motion.
The orbital period may be 1,165.6 years (Guntzel-Lingner, 1956) or 724 years (with
- 33 -
Zone 100
semi-major axis of 2.92" and retrograde motion). The masses are 1.58 and 1.13 solar
(2.71 solar total).
Star A is a spectroscopic binary of 1.58 solar masses and rotates at 200 kps; B is 1.13
solar masses; C is 6.74 solar masses; and D is 6.12 solar masses.
This complex is a member of the Hyades Group.
Observations:
C11 at 115x, 311x. At 112x, just split. Webb saw them as gW and pB.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.70 inches; B = 9.39 inches.
Separation: AB = 3,590 feet.
Distance (LY): 162
Total luminosity (Suns): 41.7
Epsilon 2 Lyr
Rating: 1 M
STF 2383; SI 37; The Double Double; ADS 11635; HD 173607; SAO 67315
Astronomical League Program: Double Star Club
Position: 1844+3940
A
B
Magnitude
5.27
5.48
Separation PA
—
—
2.5 82 -
Year
—
1999
Spectra
Colors
A2 V+A4 V W
A
W
Notes:
The system was discovered by William Herschel in 1779, and measured by F. W.
Struve in 1821: 3.2 @ 159. Over 100 measurements.
This star is a member of the Hyades group.
Epsilon 1 = STF 2382; Epsilon 2 = STF 2383. There are many more extremely faint
companions too:
AI 1863: 145.4 @ 135. 1924: 146.9 @ 136. 8 measurements.
Cc 1985: 0.2 @ 66. 1997: 0.1 @ 314. 4 measurements.
EF 1872: 44.0 @ 39. 1904: 46.0 @ 38. 3 measurements.
EG 1878: 42.6 @ 247. 1904: 43.6 @ 245. 2 measurements.
Observations:
C8 at 206x. Neat, but the best views are the resolutions of the main components
themselves! Webb saw the primary as W.
- 34 -
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches; B = 6.73 inches.
Separation: AB = 3,274 feet.
Distance (LY): 160
Total luminosity (Suns): 66
STF 2392
ADS 11655; SAO 67331
Rating: 4 M
Position: 1845+3914
A
B
C
Magnitude
9.05
10.88
9.60
Separation
—
3.1 +
23.7 +
PA
—
315 173 -
Year
—
1991
1991
Spectra
A2
Colors
W
?
B
Notes:
AB 1831: 2.7 @ 317. 17 measurements. The stars have different proper motions.
AC 1831: 23.3 @ 179. 16 measurements.
Observations:
C8 at 206x.
- 35 -
Zone 100
Zone 100, Map 7
Double Stars
Easy
Zeta Lyr
Rating: 3 E
6 and 7 Lyr; AE = Bur 968; SI 38; ADS 11639; HD 173648; SAO 67321
Astronomical League Program: Double Star Club
Position: 1845+3736
A
B
C
Magnitude
4.30
5.73
11.50
Separation
—
41.3 61.8 +
PA
—
154 +
301 -
Year
—
1998
1960
Spectra
A0m
F0 IV
Colors
W
G
?
Notes:
AB 1835: 43.7 @ 150. 62 measurements. Star A is a spectroscopic binary with a
4.2999 day period. It may be a Delta Sct variable.
The B star is a spectroscopic binary and rotates at 230 km/sec.
AC 1880: 61.7 @ 304. 5 measurements.
Observations:
C8 at 104x. Some observers report W and O. Webb saw them as gW and Y.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.49 inches; B = 8.83 inches.
Separation: AB = 9.92 miles; AC = 14.8 miles; Aa = 1.39 feet.
Distance (LY): 154
Total luminosity (Suns): 44.246
- 36 -
Zone 100
h1354
ADS 11797
Rating: 3 E
Position: 1853+3621
A
B
Magnitude
9.88
9.86
Separation PA
—
—
9.7 +
6-
Year
—
1957
Spectra
G0 V
Colors
pY
W
Notes:
1828: 8.0 @ 7. 13 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.45 inches.
Separation: AB = 2.14 miles.
Distance (LY): 142
Total luminosity (Suns): 0.35
STF 2378
ADS 11621; HD 173366; SAO 67286
Rating: 4 E
Position: 1843+3533
A
B
C
Magnitude
8.89
9.92
11.10
Separation
—
11.3 +
110.3 -!!
PA
—
190 17 -!!
Year
—
1991
1982
Spectra
A
A0
Colors
W
B
W
Notes:
AB 1829: 11.2 @ 193. 17 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. However, the stars show similar proper
motion.
AC 1880: 201.4 @ 247. 3 measurements.
Observations:
C8 at 104x.
- 37 -
Zone 100
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.98 inches; B = 6.82 inches.
Separation: AB = 6.70 miles; AC = 65.4 miles.
Distance (LY): 380
Total luminosity (Suns): 4.41
Delta 1 Lyr
11 Lyr; HD 175426; SAO 67537; H VI 3
Position: 1854+3658
A
B
Magnitude
5.58
9.20
Separation PA
—
—
174.6
20
Rating: 4 E
Year
—
1905
Spectra
B3 V
Colors
bW
pO
Notes:
1 measurement.
Star A is a spectroscopic binary (88.352 day period).
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.6 inches.
Separation: AB = 294 miles.
Distance (LY): 1,080
Total luminosity (Suns): 520
STF 2429
ADS 11900; HD 176375; SAO 67655
Rating: 4 E
Position: 1858+3625
A
B
Magnitude
8.14
9.70
Separation PA
—
—
5.4 +
287 -
Notes:
1829: 5.3 @ 290. 19 measurements.
- 38 -
Year
—
1996
Spectra
F0 V
Colors
W
rO
Zone 100
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.70 inches.
Separation: AB = 5.22 miles.
Distance (LY): 620
Total luminosity (Suns): 24
STF 2386 rej
Fox 234 (C)SAO 67327
Rating: 5 E
Position: 1845+3532
A
B
C
Magnitude
9.40
9.20
Separation
—
21.3 +
56.1 +
PA
—
19 +
76 -
Year
—
1983
1982
Spectra
A0
Colors
W
W
No
Notes:
AB 1904: 20.4 @ 18. 15 measurements. The stars show similar proper motions.
AC 1912: 56.0 @ 79. 3 measurements.
Observations:
C8 at 104x. It sits inside an 8m-9m triangle.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.64 inches.
Separation: AB = 26.6 miles; AC = 70.0 miles.
Distance (LY): 800
Total luminosity (Suns): 16
- 39 -
Zone 100
Moderate
Delta 2 Lyr
Rating: 4 M
12 Lyr; H 586; Espin 2028; ADS 11825; HD 175588; SAO 67559
Position: 1855+3654
A
B
C
BC
Magnitude
4.22
12.22
11.60
Separation PA
—
—
88.3 +
349 2.0 -
142 +
Year
—
1995
Spectra
M4 IIvar
1995
Colors
rO!!
W?
?
Notes:
AB 1923: 87 @ 350. 3 measurements.
BC 1923: 2.2 @ 138. 4 measurements.
Star A is a spectroscopic binary and an infra-red source.
The group is part of the Pleiades Group.
Observations:
C8 at 83x. Webb called it "glorious" and saw them as O! and W.
Very, very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 1.05 inches.
Separation: AB = 124 miles.
Distance (LY): 900
Total luminosity (Suns): 1,363
A 1385
ADS 11848; HD 175784; SAO 67580
Rating: 5 M
Position: 1855+3556
A
B
C
Magnitude
8.90
10.60
12.62
Separation
—
0.4 19.2 -
PA
—
288 +
305 =
- 40 -
Year
—
1982
1930
Spectra
F
Colors
W
No
W?
Zone 100
Notes:
AB 1906: 0.5 @ 281. 6 measurements.
AC 1906: 20.5 @ 305. 3 measurements.
Observations:
C8 at 104x. A nice, faint double lies 5 min W of this pair too.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.8 inches.
Separation: AB = 1,848 feet.
Distance (LY): 570
Total luminosity (Suns): 10.253
Espin 2031
ADS 11898
Rating: 5 M
Position: 1858+3554
A
B
Magnitude
10.22
11.30
Separation PA
—
—
4.9 43 +
Year
—
1934
Spectra
Colors
Y
W
Notes:
1923: 5.4 @ 42. 2 measurements.
Observations:
C11 at 115x. This pair is the west vertex of a small flat 10m triangle.
Difficult
Espin 241
ADS 11768
Rating: 5 D
Position: 1852+3648
A
B
Magnitude
10.46
12.00
Separation PA
—
—
2.1 +
71 +
- 41 -
Year
—
1997
Spectra
G0
Colors
W
W
Zone 100
Notes:
AB 1905: 2.0 @ 70. 4 measurements.
Observations:
C8 at 697x.
Bur 137
ADS 11811; HD 175491; SAO 67544
Rating: 5 D
Position: 1854+3723
A
B
C
Magnitude
8.51
9.02
11.10
Separation
—
1.5 +
23.9 +
PA
—
159 +
146 +
Year
—
1997
1988
Spectra
G0 III/IV
Colors
W
W
?
Notes:
AB 1875: 1.2 @ 124. Over 100 measurements.
AC 1880: 17.9 @ 142. 13 measurements.
Observations:
C8 at 280x.
Deep Sky Objects
Easy
Stephenson 1
Other Names: Delta Lyr Cluster
Rating: 4 E
Position: 1854+3655
Type: Oc
Dimensions: 20'
Class: III 3p
Cluster population: 15
Notes:
It is 6 light years in diameter. The brightest star is 4.3m.
- 42 -
Magnitude: 3.8
Zone 100
Observations:
C8 at 104x. It lies just S of Delta Lyr (which overpowers it). Delta and two 4m stars
frame it nicely in a large triangle. The main feature is a four-star line (running N-S) of
9m stars just SW of Delta.
Distance (LY): 1,270
Luminosity (suns): 3,810
Difficult
PK 64+15.1
Other Names: M 1-64
Rating: 5 D
Position: 1850+3515
Type: Pn
Dimensions: 18" x 17"
Class: 4
Magnitude: 13.3
Observations:
C11 at 98 and O-III filter. Not visible without the filter, but barely seen with it. Very
uniform and faint.
Distance: 11,100 light years
Luminosity: 46 Suns
- 43 -
Zone 100
Zone 100 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
STF 2362
1838+3603
2E
5
STF 2380
Epsilon 1 and 2
Lyr
1843+4455
3E
3
1844+3940
3E
6
Zeta Lyr
1845+3736
3E
7
Espin 1425
1847+4303
3E
3
A. G. 226
1850+3818
3E
6
h1354
1853+3621
3E
7
h1358
1858+4324
3E
3
STF 2431
1859+4040
3E
3
Espin 2018
1808+3904
4E
2
Espin 473
1813+4251
4E
1
STF 2338
1831+3840
4E
2
OS 356 rej
1833+4009
4E
3
Bur 50
1838+3935
4E
4
A. G. 225
1840+4035
4E
3
STF 2378
1843+3533
4E
7
Ball 35
1843+3918
4E
4
Soulie 122
1844+4020
4E
3
Webb 7
1845+4458
4E
3
STF 2394
1845+4202
4E
3
Component
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
C
A
B
C
A
B
A
B
C
A
B
C
A
B
A
B
A
B
A
B
- 44 -
Mag
7.21
8.47
7.17
8.99
4.70
4.60
4.30
5.73
11.50
9.89
10.30
10.01
10.05
9.88
9.86
9.13
10.26
6.23
9.60
8.94
9.90
10.14
10.36
11.50
9.30
11.20
9.62
7.25
9.47
10.87
9.56
10.42
10.28
10.36
13.86
8.89
9.92
11.10
6.37
10.22
10.74
11.95
9.55
10.35
9.61
9.96
Separation
—
4.3 +
—
25.7 —
210.5 +
—
41.3 61.8 +
—
4.7 +
—
26.1 +
—
9.7 +
—
14.6 +
—
19.1 +
—
5.9 +
—
31.1 40.3
—
12.6 76.6 —
29.9 -!
49.4 —
73.1 =
—
6.5 10.4
—
11.3 +
110.3 -!!
—
61 +
—
18.0 —
11.4 —
6.9 +
PA
—
186 +
—
8—
174 +
—
154 +
61.8 +
—
234 +
—
54 =
—
6—
264 —
236 =
—
235 —
99 40.3
—
302 +
76.6 —
303 49.4 —
328 —
355 =
10.4
—
190 110.3 -!!
—
189 —
152 —
49 —
203 +
Zone 100
Designation
Position
Rating
Map
STF 2393
1845+3819
4E
6
Weisse 33
1852+3926
4E
6
Bur 421
1852+4323
4E
3
Delta 1 Lyr
1854+3658
4E
7
A 587
1858+4406
4E
3
STF 2429
1858+3625
4E
7
Roe 18
1806+4214
5E
1
Espin 2569
1811+3904
5E
2
Espin 2664
1816+3723
5E
2
Bur 420
1830+3710
5E
2
Alpha Lyr
1837+3846
5E
4
Soulie 364
1842+3629
5E
5
STF 2386 rej
1845+3532
5E
7
Bur 51
1846+3942
5E
Component
A
B
C
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
C
D
A
B
A
B
A
B
C
BC
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
6
h1351
1848+4351
5E
3
STF 3130
1856+4413
5E
3
STF 2427
1858+3813
5E
6
Epsilon 1 Lyr
1844+3940
1M
6
Epsilon 2 Lyr
1844+3940
1M
6
STF 2282
1806+4021
2M
1
STF 2304
1817+4015
3M
1
STF 2351
1836+4116
3M
3
- 45 -
Mag
7.60
11.28
11.30
8.94
8.95
9.33
9.89
9.58
5.58
9.20
9.38
10.32
8.14
9.70
9.96
11.59
11.03
11.50
10.39
10.36
9.64
11.28
12.41
0.03
9.50
11.00
9.50
9.93
11.57
9.40
9.20
9.00
11.95
11.50
10.65
10.73
6.90
10.20
9.40
9.50
10.70
4.67
5.81
5.27
5.48
7.44
8.40
8.33
9.43
6.92
7.70
Separation
—
15.9 +
182.8 +
—
100.0 =
—
1.1 +
42.0 +
—
174.6
—
42.2 +
—
5.4 +
—
14.9 —
9.3 =
—
9.7 =
—
1.7 =
20.7 —
73.0 +!
51.5 +
96.4 -!
—
22.0 +
—
21.3 +
56.1 +
—
74.2 -
PA
—
23 =
182.8 +
—
330 -?
—
298 +
42.0 +
—
20
—
308 +
—
287 —
172 +
—
275 +
—
82 +
—
277 +
20.7 —
180 +
51.5 +
96.4 -!
—
171 —
19 +
56.1 +
—
185 =
6.5 +
—
24.1 +
—
181.1 =
—
52.6 +!
58.8 +
—
2.7 —
2.5 —
2.6 +
—
5.3 +
—
5.3 +
297 —
350 —
311 =
—
60 58.8 +
—
348 -!
—
82 —
83 —
70 +
—
340 =
Zone 100
Designation
Jonckheere
757
Position
Rating
Map
1804+3805
4M
2
h1328
1831+4153
4M
1
OSS 171
1833+3850
4M
4
STF 2392
1845+3914
4M
6
Delta 2 Lyr
1855+3654
4M
7
Espin 1417
1809+4314
5M
1
Popovic 78
1812+3507
5M
2
Espin 1419
1812+4355
5M
1
Espin 1420
1816+4417
5M
1
Soulie 208
1834+3934
5M
4
A 1385
1855+3556
5M
7
Hough 270
1855+4136
5M
3
Espin 2031
1858+3554
5M
7
STF 2267
1802+4011
2D
1
STF 2298
1813+4123
3D
1
Espin 183
1808+3642
5D
2
Espin 1421
1816+4423
5D
1
Hough 432
1824+3844
5D
2
Espin 241
1852+3648
5D
7
Component
A
B
A
B
A
B
C
D
E
F
A
B
C
A
B
C
BC
A
B
C
A
B
A
B
A
B
C
A
B
C
A
B
C
A
B
C
A
B
A
B
A
B
C
A
B
A
B
A
B
C
A
B
- 46 -
Mag
9.41
10.00
8.94
12.10
6.94
8.02
12.60
12.50
12.30
9.05
10.88
9.60
4.22
12.22
11.60
9.140
10.40
14.40
11.04
11.64
10.26
11.40
10.17
11.30
16.63
8.56
12.00
11.81
8.90
10.60
12.62
5.46
12.60
11.60
10.22
11.30
7.86
8.04
8.81
10.07
10.40
9.31
12.60
8.61
11.69
6.41
12.90
12.90
10.46
12.00
Separation
—
3.0 +
—
21.6 —
147.3 +
70.8
95.6
113.3
132.3
—
3.1 +
23.7 +
—
88.3 +
PA
—
327 +
—
110 —
327 +
70.8
95.6
227
343
—
315 23.7 +
—
349 -
2.0 —
7.3
3.2
—
14.1 +
—
8.1 +!
—
8.6
19.6
—
13.1
64
—
0.4 19.2 —
8.7 +
23.7 +
—
4.9 —
0.7 —
1.9 76.3 —
8.9 —
11.2 +
—
17.1 61.5
—
2.1 +
142 +
—
235
3.2
—
250 =
—
270 —
68
19.6
—
74
64
—
288 +
19.2 —
303 23.7 +
—
43 +
—
266 +
—
175 76.3 —
166 +
—
345 —
288 61.5
—
71 +
Zone 100
Designation
Bur 137
Position
1854+3723
Rating
5D
Map
Component
7
A
B
C
Mag
8.51
9.02
11.10
Separation
—
1.5 +
23.9 +
PA
—
159 +
23.9 +
Deep Sky Objects
Object
Stephenson 1
NGC 6688
NGC 6585
NGC 6646
NGC 6675
PK 64+15.1
Position
1854+3655
1841+3617
1812+3938
1830+3952
1837+4004
1850+3515
Rating
4E
4D
5D
5D
5D
5D
Map
7
5
2
2
3
7
Type
Oc (III 3p)
Gal (SA0+)
Gal (SBc)
Gal (Sa)
Gal (Sbc)
Pn (4)
- 47 -
Specifications
Surface
Mag
Br
3.8
12.6
13.6
12.8
12.4
12.6
12.7
12.4
13.2
13.3
Population
15