+66°00'
Zone 53, Master Map
Zone Master, Normal View, 10 deg FOV
π
STF 2640
STF 2642
Espin 199
Espin 197
Espin 198
+64°00'
65 Dra
Bpm 188
Stein 890
Motherwell 1
STF 2604
A. G. 394
STF 2564
Motherwell 2
Stein 940
STF 2549
e
A. G. 228
STF 2509
Espin 1848
c
STF 2553
Espin 1852
+62°00'
STF 2660
Espin 1845
h2922
h2905
Stein 924
STF 2573
STF 2554
Espin 1755
OSS 194
STF Cygnus
2623
Milburn 139
SI 44
Milburn 77
Espin 193
h2889
+60°00'
NGC 6796
+58°00'
h2906
h2910
A. G. 395
f
h1439
d
+56°00'
STF 2526
h2896
Draco
Stein 2452
NGC 6824
h1438
STF 2516
Argelander 104
NGC 6757
STF 2479
Holden 34
h1422
Espin 655
STF 2598
Stein 2478
Stein 2450
Argelander 35
Espin 2683
20h 00m
19h 48m
h1411 Espin 653
A 1401
19h 36m
NGC 6798
Espin 984
19h 24m
19h 12m
19h 00m
Zone 53, Map 1
Normal Image
+66°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+65°00'
π
Espin 197
Espin 198
Hussey 938
STF 2564
+64°00'
Bpm 188
Stein 890
Motherwell 1
Motherwell 2
A. G. 228
Espin 1848
STF 2440
STF 2553
+61°00'
Espin 1845
+62°00'
STF 2509
+63°00'
STF 2549
NGC 6796
+60°00'
Milburn 139
SI 44
Milburn 77
h2889
+59°00'
Espin 193
19h 36m
19h 28m
19h 20m
19h 12m
19h 04m
18h 56m
Zone 53, Map 1
Mirror Image
+66°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 197
+65°00'
π
Hussey 938
+64°00'
Bpm 188
Stein 890
Motherwell 1
STF 2549
STF 2509
A. G. 228
Espin 1848
+63°00'
Motherwell 2
STF 2553
Espin 1845
+62°00'
STF 2440
+61°00'
Espin 2669
NGC 6796
STF 2554
SI 44
Milburn 77
+60°00'
Milburn 139
+59°00'
Espin 193
18h 56m
19h 04m
19h 12m
19h 20m
19h 28m
19h 36m
Zone 53, Map 2
Normal Image
+61°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 6796
+60°00'
Milburn 139
SI 44
Milburn 77
h2889
+58°00'
+59°00'
Espin 193
Cygnus
+57°00'
Stein 2405
Argelander 33
STF 2526
+56°00'
STF 2433
Draco
STF 2516
NGC 6757
Argelander 104
+54°00'
h1411
Espin 653
NGC 6798
Espin 984
19h 28m
STF 2479
+55°00'
Holden 34
h1422
A 1394
19h 20m
Bemporad 37
19h 12m
19h 04m
18h 56m
Zone 53, Map 2
Mirror Image
+61°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 6796
STF 2554
SI 44
Milburn 77
+60°00'
Milburn 139
STF 2438
Cygnus
+58°00'
+59°00'
Espin 193
STF 2526
+57°00'
Stein 2405
Argelander 33
Draco
+56°00'
STF 2433
STF 2516
NGC 6757
Argelander 104
+55°00'
Espin 653 h1411
A 1394
Bemporad 37
18h 56m
19h 04m
19h 12m
19h 20m
NGC 6798
Espin 984
19h 28m
+54°00'
STF 2479
Holden 34
Zone 53, Map 3
Normal Image
+66°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 6869
+65°00'
π
Espin 197
Espin 198
+64°00'
Espin 199
65 Dra
STF 2604
A. G. 394
STF 2564
STF 2642
Stein 940
STF 2549
+63°00'
STF 2640
STF 2553
+62°00'
Espin 1848
Espin 1852
Cepheus
+61°00'
h2922
h2905
Stein 924
STF 2554
+60°00'
STF 2573
SI 44
Espin 1755
STF 2623
h2889
OSS 194
Cygnus
+59°00'
Espin 201
h2910 h2906
Draco
20h 00m
19h 52m
19h 44m
19h 36m
19h 28m
Zone 53, Map 3
Mirror Image
+66°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 6869
+65°00'
π
Espin 197
Espin 198
Espin 199
65 Dra
Stein 890
STF 2604
A. G. 394
STF 2640
+64°00'
Bpm 188
STF 2564
Stein 940
+63°00'
STF 2549
+62°00'
Espin 1848
STF 2553
Cepheus
NGC 6796
+61°00'
h2922
h2905
Stein 924
SI 44
Espin 1755
OSS 194
Espin 201
Cygnus
STF 2623
+59°00'
h2889
h2906 h2910
Draco
19h 28m
19h 36m
19h 44m
+60°00'
STF 2573
STF 2554
19h 52m
20h 00m
Zone 53, Map 4
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+61°00'
h2922
h2905
Stein 924
STF 2554
+60°00'
STF 2573
SI 44
Espin 1755
Espin 201
STF 2623
h2889
OSS 194
Cygnus
+58°00'
+59°00'
h2910 h2906
h2896
Dra
Stein 2452
NGC 6824
h1439
h1438
Espin 655
Bur 426
Stein 2497
+55°00'
Argelander 105
h1422
STF 2598
Stein 2478
+54°00'
Stein 2450
h1411
Argelander 35
Espin 2683
20h 00m
+56°00'
+57°00'
A 866 A. G. 395
19h 52m
A 1401
19h 44m
19h 36m
19h 28m
Zone 53, Map 4
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 6796
+61°00'
h2922
h2905
Stein 924
SI 44
Espin 1755
Espin 201
OSS 194
Cygnus
STF 2623
+59°00'
h2906 h2910
+57°00'
A. G. 395
h2896
Draco
NGC 6824
Stein 2452
Argelander 105
+55°00'
h1439
h1438
h1422
+58°00'
h2889
+56°00'
STF 2554
+60°00'
STF 2573
Espin 655
Bur 426
STF 2598
Espin 653
h1411
Argelander 35
Espin 2683
A 1401
19h 28m
19h 36m
19h 44m
19h 52m
20h 00m
+54°00'
Stein 2478
Stein 2450
Zone 53
Index
43 Double Stars; 3 Galaxies
A
M
A. G. 228 ................................................... 5
A. G. 394 ................................................. 19
Argelander 104 ....................................... 12
Argelander 105 ....................................... 24
Argelander 33............................................ 9
Milburn 139 ............................................... 2
Milburn 77 ............................................... 11
Motherwell 1 ............................................. 2
Motherwell 2 ............................................. 3
B
NGC 6757................................................ 14
NGC 6796.................................................. 8
NGC 6824................................................ 28
N
Bpm 188 .................................................... 6
E
O
Espin 1755 ............................................... 25
Espin 1845 ................................................. 3
Espin 1848 ............................................... 16
Espin 193 ................................................. 14
Espin 198 ................................................. 20
Espin 199 ................................................. 17
Espin 655 ................................................. 21
OSS 194 ................................................... 24
S
H
SI 44 ......................................................... 15
Stein 2405 ................................................ 13
Stein 2452 ................................................ 26
Stein 890 .................................................... 7
Stein 924 .................................................. 18
h1422 ........................................................ 25
h1438 ........................................................ 27
h1439 ........................................................ 22
h2889 ........................................................ 21
h2896 ........................................................ 26
h2905 ........................................................ 18
h2906 ........................................................ 22
h2910 ........................................................ 23
h2922 ........................................................ 20
Holden 34 ................................................ 13
STF 2479..................................................... 9
STF 2509 ................................................... 6
STF 2516 ................................................. 11
STF 2526 ................................................. 12
STF 2549 ................................................... 4
STF 2553 ................................................... 7
STF 2554 ................................................. 15
STF 2564 ................................................. 16
STF 2573 ................................................. 17
STF 2604 ................................................. 19
-1-
Zone 53
Zone 53, Map 1
Double Stars
Easy
Milburn 139
Other name(s): ADS 11982
Rating: 5 E
Position: 1902+6029
A
B
C
Magnitude
10.19
12.20
12.11
Separation
—
5.5 38.0 +
PA
—
126 272 =
Year
—
1993
1921
Spectra
Colors
W
No
B
Notes:
AB 1901: 5.8 @ 128. 4 measurements.
AC 1919: 37.1 @ 272. 2 measurements.
Observations:
C8 at 104x.
Distance (LY): 1,550
Total luminosity (Suns): 20
Motherwell 1
Other name(s): SAO 18239
Rating: 4 E
Position: 1915+6353
A
B
Magnitude
9.83
10.80
Separation PA
—
—
79.1 155 -
Year
—
1984
Notes:
1903: 80.4 @ 156. 4 measurements.
The Tycho-2 Catalogue indicates a single star entry.
-2-
Spectra
G5
Colors
Y
Y
Zone 53
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.5 inches.
Separation: AB = 61.0 miles.
Distance (LY): 494
Total luminosity (Suns): 3
Motherwell 2
Rating: 5 E
Position: 1916+6333
A
B
Magnitude
10.78
11.09
Separation PA
—
—
24.9 +
277 -?
Year
—
1991
Spectra
Colors
W
?
Notes:
1903: 24.8 @ 104. 5 measurements. Quadrant reversal?
Observations:
C11 at 115x.
Distance (LY): 33
Total luminosity (Suns): 0.007
Espin 1845
Other name(s): ADS 12294; HD 181520; SAO 18254
Rating: 5 E
Position: 1917+6200
A
B
Magnitude
8.10
10.00
Separation PA
—
—
5.7 152 -
Notes:
1913: 7 @ 154. 4 measurements.
-3-
Year
—
1991
Spectra
K2
Colors
O
?
Zone 53
Observations:
C8 at 104x. It is the middle star of an E-W "W" of 8m and 9m stars— like a miniCassiopeia.
STF 2549
Other name(s): Bur 655 (B); ADS 12586; HD 184563
Rating: 1 E
Position: 1931+6319
A
B
C
D
Magnitude
8.39
11.37
9.30
8.22
Separation
—
2.1 +
28.4 +
54.3 +
PA
—
328 +?
285 +
271 -
Year
—
1991
1994
1994
Spectra
K0
A0
Colors
B
?
W
dB
Notes:
AB 1878: 1.9 @ 153. 8 measurements. Quadrant reversal?
AC 1832: 21.1 @ 291. 24 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. However, the stars show similar proper
motion.
AD 1832: 47.5 @ 279. 27 measurements.
Observations:
C8 at 206x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.9 inches.
Separation: AB = 5.24 miles; AC = 70.9 miles; AD = 136 miles.
Distance (LY): 1,600
Total luminosity (Suns): 275
See sketch, next page.
-4-
Zone 53
Σ2549
Double star; B, W; 8.4 / 9.3; 28” @ 285
Observed with C8 on 8/10/99
Magnification: 104x
Moderate
A. G. 228
Other name(s): SAO 18226
Rating: 5 M
Position: 1913+6312
A
B
Magnitude
10.11
10.19
Separation PA
—
—
37.2 +
101 =
Year
—
1991
Notes:
1898: 36.9 @ 101. 13 measurements.
Observations:
C8 at 104x. A bright star 15 min W is a good skymark.
-5-
Spectra
K
Colors
W
W
Zone 53
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 38.6 inches.
Separation: AB = 7.02 miles.
Distance (LY): 121
Total luminosity (Suns): 0.200
STF 2509
Other name(s): ADS 12296; HD 181566; SAO 18257
Rating: 3 M
Position: 1917+6312
A
B
Magnitude
7.47
8.24
Separation PA
—
—
1.8 +
329 -
Year
—
1999
Spectra
F5 V
Colors
Y
Y
Notes:
1832: 0.5 @ 353. 91 measurements.
Observations:
C8 at 516x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches.
Separation: AB = 3,960 feet.
Distance (LY): 267
Total luminosity (Suns): 12.5
Bpm 188
Other name(s): HD 182308; SAO 18287
Rating: 5 M
Position: 1920+6423
A
B
Magnitude
6.52
10.43
Separation PA
—
—
111.9 +
181 +
Notes:
1892: 111.8 @ 180. 3 measurements.
-6-
Year
—
1909
Spectra
Colors
B9pHgMn W
W?
Zone 53
Observations:
C11 at 115x. The pair looks like it has moved since 1909.
However, the Digitized Sky Survey also shows a star at 114.6" @ 179.8. I did not
detect this star, but it may be the true companion.
Nice field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.54 inches.
Separation: AB = 157 miles.
Distance (LY): 900
Total luminosity (Suns): 160
Stein 890
Other name(s): ADS 12378
Rating: 5 M
Position: 1921+6412
A
B
Magnitude
10.70
11.00
Separation PA
—
—
5.5 +
149 -
Year
—
1936
Spectra
Colors
W
W
Notes:
1903: 5.1 @ 153. 2 measurements.
Observations:
C11 at 115x.
Difficult
STF 2553
Other name(s): ADS 12626; HD 185013
Rating: 5 D
Position: 1933+6203
A
B
Magnitude
8.18
9.52
Separation PA
—
—
1.0 126 +
-7-
Year
—
1999
Spectra
G0
Colors
Y
W
Zone 53
Notes:
1832: 1.1 @ 80. 53 measurements.
Observations:
C8 at 697x. (s2, t3) I got a figure 8 on a night of poor seeing.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.1 inches.
Separation: AB = 4,330 feet
Distance (LY): 530
Total luminosity (Suns): 17
Deep Sky Objects
Difficult
NGC 6796
Other Names: UGC 11432
Rating: 5 D
Position: 1922+6109
Type : Gal
Surface brightness: 12.3
Class: Sbc
Dimensions: 1.9' x 0.4'
Magnitude : 12.6
PA: 179
Observations:
C11 at 140x. Almost stellar nucleus (~15" diameter) without a halo. It lies on the E
side of a quadragon.
Radial velocity (km/sec): +2,189
-8-
Zone 53
Zone 52, Map 2
Double Stars
Easy
Argelander 33
Other name(s): BH Dra; ADS 12019; HD 178001
Rating: 3 E
Position: 1904+5727
A
B
Magnitude
7.01
8.42
Separation PA
—
—
11.0 =
56 +
Year
—
1991
Spectra
A0
Colors
W
B
Notes:
1903: 11.0 @ 55. 15 measurements. The primary is an eclipsing binary (1.8172 day
period) of the Algol type.
The stars have different proper motions.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.73 inches.
Separation: AB = 9.95 miles; Aa = 9.4 inches.
Distance (LY): 580
Total luminosity (Suns): 17
STF 2479
Rating: 2 E
Other name(s): ADS 12104; HD 179142; SAO 31417
Position: 1908+5520
A
B
Magnitude
7.65
9.93
Separation PA
—
—
6.6 29 -
-9-
Year
—
1998
Spectra
A3 IV
Colors
W
O!
Zone 53
Notes:
1874: 6.7 @ 38. 37 measurements. The stars show similar proper motions.
Dembowski doubled A in 1874 at 0.6 @ 20. 36 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.1 inches.
Separation: AB = 4.07 miles.
Distance (LY): 396
Total luminosity (Suns): 17
Σ2479
Double star; W, O!; 7.7 / 9.9; 7” @ 29
Observed with C11 on 9/7/01
Magnification: 339x
- 10 -
Zone 53
Milburn 77
Other name(s): ADS 12120
Rating: 5 E
Position: 1909+5954
A
B
Magnitude
10.63
11.27
Separation PA
—
—
6.7 +
182 +
Year
—
1990
Spectra
Colors
W
W
Notes:
1891: 6.3 @ 179. 5 measurements.
Observations:
C11 at 115x.
STF 2516
Other name(s): ADS 12363; HD 182334; SAO 31599
Rating: 2 E
Position: 1921+5549
A
B
Magnitude
8.15
9.44
Separation PA
—
—
4.2 +
233 -
Year
—
1992
Spectra
K0
Notes:
1831: 3.9 @ 235. 14 measurements.
Observations:
C11 at 115x. This pair is the acute angle of a 30-60-90 right triangle.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.5 inches.
Separation: AB = 1.00 mile.
Distance (LY): 152
Total luminosity (Suns): 1.30
- 11 -
Colors
Y
B
Zone 53
STF 2526
Other name(s): ADS 12401; HD 182734; SAO 31619
Rating: 5 E
Position: 1923+5701
A
B
Magnitude
8.18
10.86
Separation PA
—
—
16.8 86 +
Year
—
1991
Spectra
K5
Colors
Y
?
Notes:
1830: 17.4 @ 84. 12 measurements.
Observations:
C8 at 104x. The B star is extremely difficult.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 34.7 inches.
Separation: AB = 30.7 miles.
Distance (LY): 1,170
Total luminosity (Suns): 105
Argelander 104
Other name(s): HD 184170; SAO 31711
Rating: 4 E
Position: 1930+5526
A
B
Magnitude
6.88
9.40
Separation PA
—
—
75.8 92 +
Year
—
1991
Spectra
K0
Colors
Y
R?
Notes:
1903: 76.6 @ 85. 7 measurements. The stars show similar proper motions, although
Hipparcos gives different distances (339 and 209 light years).
Observations:
C8 at 104x.
- 12 -
Zone 53
Moderate
Stein 2405
Rating: 2 M
Position: 1901+5730
A
B
Magnitude
9.10
12.10
Separation PA
—
—
13.6
95
Year
—
1904
Spectra
K2
Colors
oW
Y
Notes:
1 measurement.
Observations:
C11 at 98x. Very nice pair!
Holden 34
Other name(s): ADS 12186
Rating: 3 M
Position: 1912+5519
A
B
Magnitude
8.65
9.53
Separation PA
—
—
2.9 267 -
Year
—
1998
Notes:
1881: 3.3 @ 271. 16 measurements.
Observations:
C8 at 280x. The field is spatterred with 8m and 9m stars.
- 13 -
Spectra
F5
Colors
W
Y
Zone 53
Espin 193
Other name(s): ADS 12251; HD 239033; SAO 31519
Rating: 5 M
Position: 1915+5946
A
B
Magnitude
9.02
11.90
Separation PA
—
—
7.9 +
130 +
Year
—
1990
Spectra
F0
Colors
W
?
Notes:
1906: 7.1 @ 114. 3 measurements.
Observations:
C11 at 115x. This pair is the "tail" of a rocking-horse asterism.
Deep Sky Objects
Difficult
NGC 6757
Rating: 5 D
Position: 1905+5543
Type : Gal
Surface brightness: 13.3
Class: SB(r)0/a
Dimensions: 1.6' x 1.1'
Observations:
C8 at 104x. It is a very faint oval without a bright center.
Radial velocity (km/sec): +2,380
- 14 -
Magnitude : 12.9
PA: 105
Zone 53
Zone 52, Map 3
Double Stars
Easy
SI 44
Other name(s): HD 184936; SAO 18395
Rating: 4 E
Position: 1933+6009
A
B
Magnitude
6.30
8.11
Separation PA
—
—
76.0 286 -
Year
—
1993
Spectra
K4 III
K0 III
Colors
W
W
Notes:
1834: 76.6 @ 287. 27 measurements. The stars share common proper motion. The
primary is an infra-red source.
Observations:
C8 at 104x. Webb saw them as D and B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 53.4 inches; B = 24.5 inches.
Separation: AB = 142 miles.
Distance (LY): 1,200
Total luminosity (Suns): 366
STF 2554
Other name(s): ADS 12637; HD 185081; SAO 18402
Rating: 4 E
Position: 1934+6016
A
B
Magnitude
9.06
9.71
Separation PA
—
—
18.6 195 -
- 15 -
Year
—
1991
Spectra
A2
A2
Colors
W
O
Zone 53
Notes:
1832: 18.8 @ 197. 21 measurements. The stars share common proper motion.
Observations:
C8 at 104x. This area is rich, and a nice wide pair of bright stars– 6.3m and 8.4m.
Espin 1848
Other name(s): ADS 12650; SAO 18406
Rating: 5 E
Position: 1934+6249
A
B
Magnitude
9.26
10.70
Separation PA
—
—
6.9 +
316 -
Year
—
1991
Spectra
K
Colors
Y
W
Notes:
1911: 3.6 @ 318. 3 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 37.0 inches.
Separation: AB = 15.1 miles.
Distance (LY): 1,400
Total luminosity (Suns): 38
STF 2564
Other name(s): ADS 12730; SAO 18438
Rating: 4 E
Position: 1937+6349
A
B
Magnitude
9.23
10.68
Separation PA
—
—
9.1 151 -!
Notes:
1832: 10.8 @ 184. 22 measurements.
- 16 -
Year
—
1991
Spectra
G5
A8n
Colors
Y
oW
Zone 53
Observations:
C8 at 104x. There is a N-S concentration of stars running just E of STF 2564. Rich
field.
STF 2573
Other name(s): ADS 12789; HD 186340; SAO 18461
Rating: 2 E
Position: 1940+6030
A
B
Magnitude
6.49
9.10
Separation PA
—
—
18.3 +
27 -
Year
—
1999
Spectra
A5 V
Colors
W
B
Notes:
1832: 18.1 @ 30. 26 measurements. Hipparcos/Tycho data show different distances
for these stars; they may be optical. However, the stars show similar proper motion.
Observations:
C8 at 65x. Webb saw them as W and B. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.50 inches.
Separation: AB = 11.2 miles.
Distance (LY): 392
Total luminosity (Suns): 34
Espin 199
Other name(s): ADS 12974
Rating: 4 E
Position: 1947+6441
A
B
Magnitude
8.75
10.70
Separation PA
—
—
7.4 +
167 -
Notes:
AB 1892: 5.9 @ 176. 9 measurements.
- 17 -
Year
—
1997
Spectra
F5
Colors
W
rO
Zone 53
Observations:
C8 at 104x. Rich field to the NE.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.6 inches.
Separation: AB = 4.09 miles.
Distance (LY): 355
Total luminosity (Suns): 3.52
Stein 924
Rating: 4 E
Position: 1948+6059
A
B
Magnitude
10.72
10.75
Separation PA
—
—
10.4 160 -
Year
—
1914
Spectra
Colors
W
W
Notes:
1904: 10.9 @ 165. 2 measurements.
Observations:
C11 at 115x. Set in a very nice but faint field.
h2905
Other name(s): ADS 12981; SAO 18535
Rating: 4 E
Position: 1948+6113
A
B
Magnitude
9.69
10.80
Separation PA
—
—
7.2 184 -
Notes:
1902: 8.8 @ 196. 6 measurements.
Observations:
C11 at 115x.
- 18 -
Year
—
1992
Spectra
G5
Colors
Y
O
Zone 53
STF 2604
Other name(s): ADS 13092; HD 188772; SAO 18575
Rating: 2 E
Position: 1953+6410
A
B
Magnitude
6.76
9.06
Separation PA
—
—
27.8 =
183 -
Year
—
1991
Spectra
G5
G5
Colors
Y
B
Notes:
1831: 27.8 @ 185. 19 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. However, the stars exhibit common proper
motion.
Observations:
C8 at 104x. Webb saw them as Y and B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.8 inches; B = 20.6 inches.
Separation: AB = 24.3 miles.
Distance (LY): 560
Total luminosity (Suns): 56
A. G. 394
Other name(s): SAO 18591
Rating: 4 E
Position: 1955+6408
A
B
Magnitude
9.88
10.31
Separation PA
—
—
22.1 274 +
Year
—
1991
Notes:
1903: 22.2 @ 273. 5 measurements.
Observations:
C8 at 104x. A nice bright double lies 20 min W.
- 19 -
Spectra
F0
Colors
W
W
Zone 53
h2922
Rating: 5 E
Position: 1957+6124
A
B
Magnitude
10.76
11.5
Separation PA
—
—
8.9 346 -
Year
—
1914
Spectra
Colors
W
W
Notes:
1908: 9.2 @ 348. 2 measurements.
Observations:
C11 at 115x. This is the middle star of a three-star chain.
Moderate
Espin 198
Other name(s): ADS 12777; SAO 18451
Rating: 4 M
Position: 1939+6456
A
B
Magnitude
9.26
10.43
Separation PA
—
—
3.0 310 +
Notes:
AB 1902: 4.7 @ 282. 10 measurements.
Observations:
C8 at 280x.
- 20 -
Year
—
1991
Spectra
G0
Colors
yW
yO
Zone 53
Zone 52, Map 4
Double Stars
Easy
Espin 655
Other name(s): ADS 12651
Rating: 5 E
Position: 1935+5509
A
B
Magnitude
10.13
11.16
Separation PA
—
—
67.1
129
Year
—
1908
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C8 at 104x. Very faint!
Distance (LY): 408
Total luminosity (Suns): 1.43
h2889
Other name(s): HD 239147; SAO 31812
Rating: 5 E
Position: 1936+5948
A
B
Magnitude
10.17
11.51
Separation PA
—
—
12.5 164 +
Notes:
1902: 13.9 @ 163. 6 measurements.
- 21 -
Year
—
1991
Spectra
G0
Colors
W
W?
Zone 53
Observations:
C8 at 104x. A small triangle of 10m stars lies 4 min NW.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.1 inches.
Separation: AB = 7.39 miles.
Distance (LY): 379
Total luminosity (Suns): 1.28
h1439
Other name(s): HD 187053; SAO 31956
Rating: 3 E
Position: 1945+5551
A
B
Magnitude
7.81
10.08
Separation PA
—
—
33.1 +
204 +
Year
—
1991
Spectra
M0
Colors
dO!!
B
Notes:
1902: 30.2 @ 200. 10 measurements.
Hipparcos/Tycho mission data show different distances for these stars (2,350 and 409
light years); they may be optical.
Observations:
C8 at 83x. Bright but moderate field.
h2906
Other name(s):
Rating: 4 E
Position: 1949+5916
A
B
Magnitude
10.26
11.14
Separation PA
—
—
29.7 +
56 -
- 22 -
Year
—
1991
Spectra
K
Colors
O
W
Zone 53
Notes:
1903: 28.0 @ 58. 10 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 38.9 inches.
Separation: AB = 6.76 miles.
Distance (LY): 146
Total luminosity (Suns): 0.19
h2910
Other name(s): HD 239243; SAO 32066
Rating: 4 E
Position: 1952+5913
A
B
Magnitude
9.92
11.72
Separation PA
—
—
12.9 +
259 +
Year
—
1991
Notes:
1904: 12.1 @ 257. 5 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.34 inches.
Separation: AB = 34.6 miles.
Distance (LY): 1,720
Total luminosity (Suns): 30
- 23 -
Spectra
A3
Colors
W
?
Zone 53
Argelander 105
Other name(s): HD 188590; SAO 32080
Rating: 4 E
Position: 1953+5605
A
B
Magnitude
8.52
9.93
Separation PA
—
—
57.0 +
305 =
Year
—
1991
Spectra
K2
Colors
yO
W
Notes:
1909: 56.1 @ 305. 8 measurements. The stars have a small difference in proper
motion and Hipparcos gives different distances (620 and 138 light years).
Observations:
C8 at 104x.
OSS 194
Other name(s): HD 188793; SAO 32093
Rating: 4 E
Position: 1954+5943
A
B
Magnitude
6.06
9.30
Separation PA
—
—
68.4 356 -
Notes:
1875: 75.3 @ 0. 14 measurements.
Star A is a spectroscopic binary.
The stars have different proper motions.
Observations:
C8 at 104x. Bright and rich field.
- 24 -
Year
—
1996
Spectra
A3 V
Colors
W
rO
Zone 53
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.10 inches.
Separation: AB = 36.3 miles.
Distance (LY): 340
Total luminosity (Suns): 35
Espin 1755
Other name(s): ADS 13175; HD 239263
Rating: 4 E
Position: 1957+5959
A
B
Magnitude
9.41
10.44
Separation PA
—
—
5.6 175 +
Year
—
1990
Spectra
F0
Colors
W
W
Notes:
1898: 6.0 @ 170. 5 measurements.
May be optical because Hipparcos gives different distances (324 and 143 light years).
Observations:
C8 at 104x. Extremely rich field.
Moderate
h1422
Rating: 5 M
Position: 1934+5503
A
B
Magnitude
9.83
12.13
Separation PA
—
—
19.6
289
Notes:
1 measurement.
- 25 -
Year
—
1908
Spectra
Colors
Y
?
Zone 53
Observations:
C11 at 115x.
Distance (LY): 710
Total luminosity (Suns): 5.16
h2896
Other name(s): HD 239184; SAO 31914
Rating: 4 M
Position: 1943+5655
A
B
Magnitude
9.86
11.01
Separation PA
—
—
16.7 +
25 =
Year
—
1920
Spectra
A3
Colors
W
O
Notes:
1905: 16.5 @ 25. 4 measurements.
Observations:
C8 at 104x. A 6.3m star 15 min NE is a good skymark.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.21 inches.
Separation: AB = 1.92 miles.
Distance (LY): 74
Total luminosity (Suns): 0.07
Stein 2452
Other name(s): HD 239191; SAO 31930
Rating: 4 M
Position: 1944+5610
A
B
Magnitude
8.70
11.00
Separation PA
—
—
10.3
339
- 26 -
Year
—
1915
Spectra
Colors
Y
O
Zone 53
Notes:
1 measurement.
Observations:
C8 at 104x. Moderate field to the N.
Distance (LY): 540
Total luminosity (Suns): 11
Difficult
h1438
Rating: 5 D
Position: 1944+5547
A
B
Magnitude
9.50
12.41
Separation PA
—
—
14.9 67 -
Year
—
1991
Spectra
Notes:
1905: 16.0 @ 76. 4 measurements.
Pettit measures a star he calls h1438: 1917.71. 343.5@, 11.75".
Observations:
C11 at 115x. h1439 lies just 5 min NE.
Distance (LY): 441
Total luminosity (Suns): 2.58
- 27 -
Colors
W
?
Zone 53
Deep Sky Objects
Difficult
NGC 6824
Other Names: H II 878m UGC 11470
Astronomical League Program: Herschel II Club
Rating: 4 D
Position: 1944+5607
Type : Gal
Surface brightness: 13.5
Class: Sb
Dimensions: 2.6' x 1.7'
Magnitude : 12.2
PA: 60
Observations:
C8 at 104x. It is a featureless oval haze without a stellar nucleus. It took averted
vision and tube movement to verify its presence.
Distance: 160,000,000 light years
Radial velocity (km/sec): +3,676
Luminosity: 26,500,000,000 Suns
- 28 -
Zone 53
Zone 53 Mini-Catalog
Double Stars
Star
Designation
Position
Rating
Map
STF 2549
1931+6319
1E
1
STF 2479
1908+5520
2E
2
STF 2516
1921+5549
2E
2
STF 2573
1940+6030
2E
3
STF 2604
1953+6410
2E
3
Argelander 33
1904+5727
3E
2
h1439
1945+5551
3E
4
Motherwell 1
1915+6353
4E
1
Argelander 104
1930+5526
4E
2
SI 44
1933+6009
4E
3
STF 2554
1934+6016
4E
3
STF 2564
1937+6349
4E
3
Espin 199
1947+6441
4E
3
h2905
1948+6113
4E
3
Stein 924
1948+6059
4E
3
h2906
1949+5916
4E
4
h2910
1952+5913
4E
4
Argelander 105
1953+5605
4E
4
OSS 194
1954+5943
4E
4
A. G. 394
1955+6408
4E
3
Espin 1755
1957+5959
4E
4
Milburn 139
1902+6029
5E
1
Component
A
B
C
D
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
- 29 -
Specifications
Mag
Sep from A
8.39
—
11.37
2.1 +
9.30
28.4 +
8.22
54.3 +
7.65
—
9.93
6.6 8.15
—
9.44
4.2 +
6.49
—
9.10
18.3 +
6.76
—
9.06
27.8 =
7.01
—
8.42
11.0 =
7.81
—
10.08
33.1 +
9.83
—
10.80
79.1 6.88
—
9.40
75.8 6.30
—
8.11
76.0 9.06
—
9.71
18.6 9.23
—
10.68
9.1 8.75
—
10.70
7.4 +
9.69
—
10.80
7.2 10.72
—
10.75
10.4 10.26
—
11.14
29.7 +
9.92
—
11.72
12.9 +
8.52
—
9.93
57.0 +
6.06
—
9.30
68.4 9.88
—
10.31
22.1 9.41
—
10.44
5.6 10.19
—
12.20
5.5 12.11
38.0 +
PA from A
—
328 +?
28.4 +
54.3 +
—
29 —
233 —
27 —
183 —
56 +
—
204 +
—
155 —
92 +
—
286 —
195 —
151 -!
—
167 —
184 —
160 —
56 —
259 +
—
305 =
—
356 —
274 +
—
175 +
—
126 38.0 +
Zone 53
Star
Designation
Position
Rating
Map
Milburn 77
1909+5954
5E
2
Motherwell 2
1916+6333
5E
1
Espin 1845
1917+6200
5E
1
STF 2526
1923+5701
5E
2
Espin 1848
1934+6249
5E
3
Espin 655
1935+5509
5E
4
h2889
1936+5948
5E
4
h2922
1957+6124
5E
3
Stein 2405
1901+5730
2M
2
Holden 34
1912+5519
3M
2
STF 2509
1917+6312
3M
1
Espin 198
1939+6456
4M
3
h2896
1943+5655
4M
4
Stein 2452
1944+5610
4M
4
A. G. 228
1913+6312
5M
1
Espin 193
1915+5946
5M
2
Bpm 188
1920+6423
5M
1
Stein 890
1921+6412
5M
1
h1422
1934+5503
5M
4
STF 2553
1933+6203
5D
1
h1438
1944+5547
5D
4
Component
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
- 30 -
Specifications
Mag
Sep from A
10.63
—
11.27
6.7 +
10.78
—
11.09
24.9 +
8.10
—
10.00
5.7 8.18
—
10.86
16.8 9.26
—
10.70
6.9 +
10.13
—
11.16
67.1
10.17
—
11.51
12.5 10.76
—
11.50
8.9 9.10
—
12.10
13.6
8.65
—
9.53
2.9 7.47
—
8.24
1.8 +
9.26
—
10.43
3.0 9.86
—
11.01
16.7 +
8.70
—
11.00
10.3
10.11
—
10.19
37.2 +
9.02
—
11.90
7.9 +
6.52
—
10.43
111.9 +
10.70
—
11.00
5.5 +
9.83
—
12.13
19.6
8.18
—
9.52
1.0 9.50
—
12.41
14.9 -
PA from A
—
182 +
—
277 -?
—
152 —
86 +
—
316 —
129
—
164 +
—
346 —
95
—
267 —
329 —
310 +
—
25 =
—
339
—
101 =
—
130 +
—
181 +
—
149 —
289
—
126 +
—
67 -
Zone 53
Deep Sky Objects
Object
NGC 6824
NGC 6757
NGC 6796
Position
1944+5607
1905+5543
1922+6109
Rating
4D
5D
5D
Map
4
2
1
Type
Gal (Sb)
Gal (SB(r)0/a)
Gal (Sbc)
- 31 -
Specifications
Surface
Mag
Br
12.2
13.5
12.9
13.3
12.6
12.3
Population