Zone 172, Master Map
+16°00'
Normal View
Zone Master, Normal View, 10 deg FOV
+14°00'
ε
e
c
+12°00'
Hercules
d
+06°00'
f
+08°00'
+10°00'
Octans
θ1
θ2
Alya
18h 56m
18h 48m
18h 40m
18h 32m
18h 24m
18h 16m
18h 08m
18h 00m
Zone 172, Map 1
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+15°00'
Roe 122
NGC 6574
NGC 6635
STF 2269
Octans
Perrine 2
+14°00'
A. G. 222
NGC 6570
Fox
A. G. 358
STF 2285
h1316
+13°00'
NGC 6615
H V 74
Fox 228
STF 2254
+12°00'
Hercules
STF 2276
IC 4688
STF 2311
NGC 6525
PK38+12.1PK 38+12.1
18h 30m
18h 25m
18h 20m
18h 15m
18h 10m
18h 05m
18h 00m
+11°00'
Soulie 132
Zone 172, Map 1
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+15°00'
Roe 122
NGC 6574
NGC 6635
STF 2269
STF 2285
Fox
+14°00'
A. G. 222
NGC 6570
A. G. 358
Octans
Perrine 2
h1316
+13°00'
NGC 6615
H V 74
Fox 228
STF 2254
+12°00'
Hercules
STF 2276
IC 4688
STF 2311
+11°00'
Soulie 132
NGC 6525
PK38+12.1
PK 38+12.1
18h 00m
18h 05m
18h 10m
18h 15m
18h 20m
18h 25m
18h 30m
Zone 172, Map 2
Normal Image
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
PK38+12.1 PK 38+12.1
72 Oph
+09°00'
Hertzsprung 12
Engelmann 63
LDS 1012
OSS 161
+08°00'
Roe 99
Roe 100
OSS 164
Jonckheere 95
h5494
Soulie 342
NGC 6572
PK34+11.1
UGC 11093
NGC 6572
+07°00'
Heintz 867
Bur 464
NGC 6633
STF 2265
Schjellerup 17
+06°00'
NGC 6509
Soulie 162
STF 2283
OS 345
OS 168
18h 30m
Baillaud 2914
18h 25m
18h 20m
18h 15m
18h 10m
18h 05m
18h 00m
Zone 172, Map 2
Mirror Image
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
PK38+12.1
PK 38+12.1
72 Oph
Engelmann 63
OSS 161
+09°00'
Hertzsprung 12
LDS 1012
+08°00'
Roe 99
Roe 100
OSS 164
Heintz 867
Soulie 342
NGC 6572
PK34+11.1 NGC 6572
NGC 6633
STF 2265
Soulie 162
STF 2283
OS 345
Bur 464
NGC 6633
Schjellerup 17
+06°00'
UGC 11093
+07°00'
Jonckheere 95
h5494
Baillaud 2914
18h 00m
18h 05m
18h 10m
18h 15m
18h 20m
18h 25m
18h 30m
Zone 172, Map 3
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Lewis 40
h1331
STF 2428
+15°00'
h1344
ε
h3310
+14°00'
STF 2411
STF 2412
STF 2336
STF 2399
STF 2330
Cogshall 1
STF 2426
+13°00'
11 Aql
Hercules
A. G. 365
Octans
A. G. 364
A. G. 363
+12°00'
h1334
OS 357
Hussey 258
Bur 265
Ball 33
h1353
STF 2341
+11°00'
Kustner 120
OSS 174
STF 2404
STF 2408
STF 2402
NGC 6709
STF 2396
OS 362
Smart 82
h870
NGC 6709
h5505
19h 00m
South 704
18h 55m
18h 50m
18h 45m
18h 40m
18h 35m
18h 30m
Zone 172, Map 3
Mirror Image
Lewis 40
h1344
h3310
ε
h1331
+15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+14°00'
STF 2411
STF 2412
STF 2336
11 Aql
+13°00'
STF 2399
STF 2330
Cogshall 1
Hercules
+12°00'
A. G. 365
h1334
A. G. 363
A. G. 364Octans
OS 357
Hussey 258
Bur 265
Ball 33
h1353
Kustner 120
+11°00'
STF 2341
OSS 174
STF 2404
STF 2396
OS 362
STF 2408
STF 2402
NGC 6709 Smart 82
h870
NGC 6709
h5505
South 704
18h 30m
18h 35m
18h 40m
18h 45m
18h 50m
18h 55m
19h 00m
Zone 172, Map 4
Normal Image
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h5505
South 704
+09°00'
h860
Jonckheere 530
Jonckheere 1835
+08°00'
OS 355 rej
STF 2389 rej
LDS 1013
STF 2346
Jonckheere 102
OS 354
Octans
+07°00'
STF 2355 rej
Jonckheere 99
+06°00'
STF 2329
Olivier 215
Bur 136
Soulie 495
OS 361
MCG +01-48-001
STF 2375
IC 4756
IC 4756
Graff 1
Czernik 38
19h 00m
18h 55m
18h 50m
18h 45m
Baillaud 2933
Jonckheere 527
OS 360
h864
STF 2342
18h 40m
18h 35m
18h 30m
Zone 172, Map 4
Mirror Image
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h5505
South 704
+09°00'
h860
Jonckheere 530
Jonckheere 1835
+08°00'
OS 355 rej
STF 2389 rej
LDS 1013
STF 2346
+07°00'
STF 2355 rej
Jonckheere 102
OS 354
Octans
Jonckheere 99
Olivier 215
+06°00'
STF 2329
Bur 136
Soulie 495
OS 361
IC 4756
STF 2375
IC 4756
MCG +01-48-001
Graff 1
Baillaud 2933
STF 2342
18h 30m
18h 35m
h864
Jonckheere 527
OS 360
18h 40m
18h 45m
Czernik 38
18h 50m
18h 55m
19h 00m
Zone 172
78 Double Stars, 2 Planetary Nebulae,
5 Open Clusters, 2 Galaxies
Flamsteed
h5494......................................................... 14
h5505......................................................... 38
h860........................................................... 38
h870........................................................... 23
Heintz 867................................................. 16
Hertzsprung 12.......................................... 12
Hussey 258................................................ 30
11 Aql........................................................ 32
72 Oph....................................................... 18
A
A. G. 222................................................... 10
A. G. 358..................................................... 5
A. G. 363................................................... 24
A. G. 364................................................... 30
A. G. 365................................................... 28
I
IC 4756...................................................... 46
B
J
Baillaud 2933 ............................................ 40
Ball 33....................................................... 31
Bur 136...................................................... 36
Bur 265...................................................... 34
Bur 464...................................................... 15
C
Jonckheere 102.......................................... 44
Jonckheere 1835........................................ 44
Jonckheere 527.......................................... 37
Jonckheere 530.......................................... 37
Jonckheere 95............................................ 15
Jonckheere 99............................................ 45
Cogshall 1 ................................................. 27
K
E
Kustner 120............................................... 28
Engelmann 63 ........................................... 16
L
F
LDS 1012 .................................................... 7
LDS 1013 .................................................. 42
Fox .............................................................. 5
Fox 228 ....................................................... 6
M
G
MCG +01-48-001 ..................................... 47
Graff 1....................................................... 47
N
H
NGC 6572 ................................................. 18
NGC 6633 ................................................. 19
NGC 6709 ................................................. 35
H V 74......................................................... 5
h1316........................................................... 6
h1334......................................................... 33
h1353......................................................... 27
O
Olivier 215 ................................................ 41
-1-
Zone 172
STF 2254..................................................... 7
STF 2265................................................... 11
STF 2269..................................................... 4
STF 2276..................................................... 3
STF 2283................................................... 17
STF 2285..................................................... 4
STF 2311..................................................... 8
STF 2329................................................... 38
STF 2330................................................... 22
STF 2336................................................... 24
STF 2341................................................... 22
STF 2346................................................... 40
STF 2355 rej ............................................. 43
STF 2375................................................... 43
STF 2389 rej ............................................. 42
STF 2396................................................... 25
STF 2399................................................... 21
STF 2402................................................... 33
STF 2404................................................... 29
STF 2408................................................... 29
STF 2411................................................... 23
STF 2412................................................... 34
OS 345 ...................................................... 13
OS 354 ...................................................... 45
OS 355 rej ................................................. 39
OS 357 ...................................................... 32
OS 361 ...................................................... 41
OS 362 ...................................................... 31
OSS 161 .................................................... 10
OSS 164 .................................................... 11
OSS 174 .................................................... 26
P
Perrine 2 ...................................................... 9
PK 38+12.1 ............................................... 20
R
Roe 100 ....................................................... 9
Roe 99 ....................................................... 14
S
Schjellerup 17 ........................................... 12
Smart 82 .................................................... 26
Soulie 132 ................................................... 8
Soulie 162 ................................................. 13
Soulie 342 ................................................. 17
Soulie 495 ................................................. 39
South 704 .................................................. 36
U
UGC 11093 ............................................... 21
-2-
Zone 172
Zone 172, Map 1
Double Stars
Easy
STF 2276
Rating: 1 E
ADS 11056; HD 165475; SAO 103373
Position: 1806+1200
A
B
C
Magnitude
6.51
6.91
12.00
Separation
—
6.9 +
63.0 -
PA
—
257 305 -
Year
—
1991
1989
Spectra
A7pCr
A8p
A0
Colors
W
W
?
Notes:
AB 1822: 6.5 @ 260. 92 measurements.
Star A is a spectroscopic binary. B is slightly
variable (Beta CrB type). The stars have
different proper motions.
AC 1905: 63.1 @ 306. 4 measurements.
Observations:
C8 at 104x. Webb saw them as Y and
bW, as did Franks. Very rich field.
STF 2276
Observed with C11
on 9/21/03; s8, t10
Magnification: 98x
Okie-Tex Star Party
Scale model (in which the Sun is the size of a
baseball):
Diameter: A = 7.84 inches; B = 8.68 inches;
C = 7.50 inches.
Separation: AB = 4.56 miles; AC = 41.7
miles.
Distance (LY): 424
Total luminosity (Suns): 52.22
-3-
Zone 172
STF 2285
Rating: 3 E
ADS 11108; HD 166256; SAO 103430
Position: 1809+1329
A
B
Magnitude
8.52
9.93
Separation PA
—
—
3.6 =
333 -
Year
—
1991
Spectra
A0
Colors
W
B
Notes:
1830: 3.6 @ 338. 23 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.32 inches.
Separation: AB = 14.4 miles.
Distance (LY): 2,570
Total luminosity (Suns): 257
STF 2269
Rating: 4 E
ADS 11032; HD 165172; SAO 103349
Position: 1804+1447
A
B
Magnitude
8.40
11.20
Separation PA
—
—
22.7 +
164 =
Year
—
1992
Spectra
A0 V
Colors
W
?
Notes:
1830: 20.1 @ 164. 12 measurements.
Observations:
C8 at 104x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 35.1 miles.
Distance (LY): 990
Total luminosity (Suns): 33
-4-
Zone 172
A. G. 358
Fox 219; ADS 11068
Position: 1807+1359
A
B
C
D
BC
Magnitude
9.86
10.48
10.40
8.86
Rating: 4 E
Separation PA
—
—
3.3 327 +
81.9 +
0.6 -
319 +
122 -
Year
—
1998
Spectra
G5
G5
1959
1995
Colors
Y
No
No
W
Notes:
AB 1893: 3.6 @ 308. 34 measurements.
BC 1957: 0.7 @ 124. 13 measurements.
AD 1896: 81.0 @ 318. 7 measurements. The stars share common proper motion.
Observations:
C8 at 104x. Very rich field.
Fox
Rating: 4 E
SAO 103555
Position: 1817+1401
A
B
Magnitude
9.07
10.64
Separation PA
—
—
84
319
Year
—
1921
Spectra
K0
Colors
Y
yO
Notes:
May be optical because Hipparcos gives different distances (2,500 and 67 light years).
Observations:
C8 at 104x.
H V 74
Rating: 5 E
ADS 11086; HD 165910; SAO 103406
Position: 1808+1304
A
B
Magnitude
6.61
10.44
Separation PA
—
—
40.8 139 +
-5-
Year
—
1988
Spectra
A2 V
Colors
W
?
Zone 172
Notes:
1783: 40.9 @ 129. 10 measurements.
Observations:
C8 at 83x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches.
Separation: AB = 41.4 miles.
Distance (LY): 650
Total luminosity (Suns): 83
h1316
Position: 1815+1327
A
B
Magnitude
10.33
10.92
Rating: 5 E
Separation PA
—
—
14.5 258 =
Year
—
1925
Spectra
Colors
Y
O
Notes:
1896: 14.6 @ 258. 4 measurements.
Observations:
C11 at 115x.
Distance (LY): 235
Total luminosity (Suns): 0.50
Fox 228
Position: 1824+1241
A
B
Magnitude
11.29
11.15
Rating: 5 E
Separation PA
—
—
24.3 =
110 -?
Year
—
1991
Notes:
1904: 24.3 @ 287. 3 measurements. Quadrant reversal?
Observations:
C8 at 104x. A bright (8m) wide pair lies 10 min N.
-6-
Spectra
Colors
W
W
Zone 172
LDS 1012
Rating: 5 E
HD 169822; SAO 123474
Position: 1826+0847
A
B
Magnitude
7.83
8.32
Separation PA
—
—
606.0 163 -
Year
—
1991
Spectra
G7 V
Colors
W
W
Notes:
1936: 612.0 @ 174. 2 measurements.
May be optical because Hipparcos gives different distances (88 and 124 light years).
Hipparcos stochastic double solution.
Observations:
C8 at 104x. You'd never know it was a double if you hadn't read it first.…
Moderate
STF 2254
Rating: 3 M
HD 164925; SAO 103327
Position: 1803+1237
A
B
C
Magnitude
9.11
9.31
13.00
Separation
—
3.5 +
55.3
PA
—
266 =
66
Notes:
AB 1831: 3.2 @ 266. 38 measurements.
AC 1 measurement.
Observations:
C8 at 206x.
-7-
Year
—
1999
1911
Spectra
A2
Colors
wO
pB
No
Zone 172
Soulie 132
Rating: 4 M
SAO 103388
Position: 1807+1120
A
B
C
Magnitude
9.16
11.80
10.50
Separation
—
12.8
22.8
PA
—
63
101
Year
—
1982
1982
Spectra
K0
Colors
yO
W?
W
Notes:
AB and AC, 1 measurement.
Observations:
C11 at 115x. B is difficult.
STF 2311
Rating: 4 M
ADS 11292; SAO 103645
Position: 1822+1126
A
B
C
D
Magnitude
9.10
10.05
10.20
10.40
Separation
—
3.0 -!
145.5 +
147.4 -
PA
—
109 -!
333 =
290 +
Year
—
1991
1991
1956
Spectra
K5
Colors
O
W
No
W
Notes:
AB 1830: 8.7 @ 171. 41 measurements.
AC 1911: 142.8 @ 333. 3 measurements.
AD 1907: 148.9 @ 289. 5 measurements.
Observations:
C8 at 104x. It took 280x to pick up B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 36.6 inches.
Separation: AB = 3.41 miles; AC = 166 miles; AD = 168 miles.
Distance (LY): 730
Total luminosity (Suns): 15
-8-
Zone 172
Perrine 2
Fox 280 (C); ADS 11261;
Position: 1820+1403
A
B
C
Magnitude
9.17
11.05
11.54
Rating: 5 M
Separation
—
3.6 +
52.7 +
PA
—
2358 -
Year
—
1991
1991
Spectra
A0
Colors
W
W
W
Notes:
1900: 3.5 @ 3. 12 measurements.
AC 1910: 52.2 @ 359. 2 measurements.
Observations:
C11 at 193x. B is dificult.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.56 inches.
Separation: AB = 4.71 miles; AC = 69.1 miles.
Distance (LY): 840
Total luminosity (Suns): 15
Roe 100
Rating: 5 M
ADS 11308; HD 169308; SAO 123424
Position: 1824+0829
A
B
C
BC
Magnitude
9.16
9.77
11.40
Separation PA
—
—
26.3 +
202 5.6 +
342 -
Notes:
AB 1898: 23.4 @ 207. 6 measurements.
BC 1916: 4.4 @ 345. 2 measurements.
Observations:
C11 at 193x.
-9-
Year
—
1982
1982
Spectra
K2
Colors
Y
?
?
Zone 172
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 28.7 inches.
Separation: AB = 9.64 miles; BC = 2.05 miles.
Distance (LY): 235
Total luminosity (Suns): 1.59
Difficult
A. G. 222
Rating: 4 D
ADS 11291
Position: 1822+1413
A
B
Magnitude
9.49
9.76
Separation PA
—
—
1.5 146 +
Year
—
1999
Spectra
F8
Colors
W
W
Notes:
1900: 1.6 @ 145. 52 measurements.
Observations:
C11 at 339x.
Zone 172, Map 2
Double Stars
Easy
OSS 161
Rating: 3 E
HD 164309; SAO 123007
Position: 1800+0851
A
B
C
Magnitude
5.67
9.16
10.98
Separation
—
61.7 14.3 -!!
PA
—
73 127 +
- 10 -
Year
—
1994
1987
Spectra
G5
K0
Colors
Y!
O?
W?
Zone 172
Notes:
AB 1874: 62.7 @ 78. 18 measurements.
AC 1911: 114.2 @ 126. 2 measurements. Measurement error?
Observations:
C8 at 104x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.3 inches; B = 26.0 inches.
Separation: AB = 38.6 miles; AC = 8.94 miles.
Distance (LY): 401
Total luminosity (Suns): 70.5
OSS 164
Rating: 3 E
HD 164926; SAO 123063
Position: 1803+0755
A
B
Magnitude
8.09
9.11
Separation PA
—
—
50.4 +
0-
Year
—
1995
Spectra
K0
Colors
O
B
Notes:
1875: 49.8 @ 3. 16 measurements.
The stars show similar proper motions.
Observations:
C8 at 104x.
STF 2265
Rating: 3 E
SAO 123080
Position: 1804+0628
A
B
Magnitude
9.91
10.59
Separation PA
—
—
23.7 282 -
Year
—
1992
Spectra
G5 III
Colors
Y
B!
Notes:
1831: 24.5 @ 283. 20 measurements. The stars have different proper motions.
- 11 -
Zone 172
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39.0 inches.
Separation: AB = 8.32 miles.
Distance (LY): 225
Total luminosity (Suns): 0.7
Schjellerup 17
Rating: 3 E
SAO 123480
Position: 1827+0632
A
B
Magnitude
8.31
10.40
Separation PA
—
—
51 +
351 =
Year
—
1984
Spectra
A2
Colors
W
O
Notes:
1904: 50.4 @ 351. 7 measurements.
The stars have different proper motions.
Observations:
C8 at 104x. It lies in the W edge of the open cluster NGC 6633, a beautiful group. In
this W edge, a small group lies detached from the main body. This group consists of six
stars, with this double being the brightest of them.
Hertzsprung 12
Position: 1807+0920
A
B
Magnitude
10.55
10.50
Rating: 4 E
Separation PA
—
—
134.4 219 =
Year
—
1920
Spectra
K
Colors
Y
W
Notes:
1906: 134.5 @ 219. 3 measurements.
Observations:
C8 at 104x. A pair of 7m stars lies about 25 min to the NE and are good skymarks to
confirm the area.
- 12 -
Zone 172
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39.4 inches.
Separation: AB = 42.6 miles.
Distance (LY): 203
Total luminosity (Suns): 0.4
OS 345
Rating: 4 E
ADS 11160; HD 166958; SAO 123254
Position: 1813+0549
A
B
C
Magnitude
7.59
9.91
9.61
Separation
—
1.5 +
86.9 -
PA
—
65 +
199 -
Year
—
1991
1984
Spectra
B9
Colors
W
No
W
Notes:
AB 1843: 0.9 @ 57. 24 measurements.
AC 1893: 88.30 @ 200. 8 measurements.
May be optical because Hipparcos gives different distances (560 and 279 light years).
Observations:
C8 at 104x. Very rich field.
C11 at 560x. Neatly split, both W.
Soulie 162
Position: 1823+0614
A
B
Magnitude
10.36
10.70
Rating: 4 E
Separation PA
—
—
20.8 +
142 +
Year
—
1991
Spectra
Colors
W
W
Notes:
1906: 20.3 @ 141. 4 measurements.
Observations:
C11 at 115x.
Distance (LY): 1,050
Total luminosity (Suns): 10.7
- 13 -
Zone 172
h5494
Rating: 5 E
ADS 11254; HD 168387; SAO 123353
Position: 1819+0716
A
B
Magnitude
5.41
11.87
Separation PA
—
—
42.2 +
71 +
Year
—
1960
Spectra
K2 III
Colors
Y
?
Notes:
1901: 39.5 @ 70. 4 measurements.
The primary is an infra-red source.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 49.5 inches.
Separation: AB = 9.68 miles.
Distance (LY): 147
Total luminosity (Suns): 11.83
Roe 99
Rating: 5 E
ADS 11298; SAO 123411
Position: 1823+0835
A
B
C
Magnitude
10.62
10.80
11.54
Separation
—
6.1 +
25.5 -
PA
—
223 +
235 +
Year
—
1982
1982
Spectra
F5
Colors
W
No
W
Notes:
AB 1916: 5.4 @ 220. 6 measurements.
AC 1916: 26.7 @ 230. 4 measurements. The stars share common proper motion.
Observations:
C8 at 104x.
- 14 -
Zone 172
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.0 inches.
Separation: AB = 3.26 miles; AC = 13.6 miles.
Distance (LY): 343
Total luminosity (Suns): 1.23
Moderate
Bur 464
Rating: 3 M
ADS 11366; HD 170114
Position: 1828+0633
A
B
Magnitude
8.97
9.73
Separation PA
—
—
1.1 =
108 -
Year
—
1991
Spectra
A3
Colors
W
W
Notes:
1877: 1.1 @ 111. 23 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.83 inches.
Separation: AB = 1,426 feet.
Distance (LY): 161
Total luminosity (Suns): 0.78
Jonckheere 95
Soulie 346 (D); ADS 11374; HD 170245
Position: 1828+0709
A
B
C
D
Magnitude
10.05
10.53
10.50
10.10
Separation
—
2.1 +
32.3 70.3
Rating: 4 M
PA
—
124 +
31 +
185
Notes:
AB 1910: 1.8 @ 120. 27 measurements.
- 15 -
Year
—
1998
1982
1982
Spectra
A2
Colors
W
W
W
W
Zone 172
AC 1906: 33.4 @ 30. 7 measurements.
AD 1 measurement.
Observations:
C11 at 339x.
Heintz 867
Position: 1803+0745
A
B
Magnitude
10.30
11.10
Rating: 5 M
Separation PA
—
—
2.9
337
Year
—
1994
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C11 at 339x.
Engelmann 63
Bpm 179 (C); Soulie 133 (D, E); HD 165670; SAO 123133
Position: 1807+0853
A
B
C
D
E
Magnitude
6.96
10.47
13.10
13.00
10.97
Separation
—
129.6 167.4
24.8
149.5
PA
—
245 +
334
51
78
Year
—
1984
1982
1982
1982
Rating: 5 M
Spectra
F5
Colors
W
W?
?
No
?
Notes:
AB 1893: 131.5 @ 240. 8 measurements. May be optical as Hipparcos shows
different distances (128 and 108 light years, A and B).
AC, AD and AE, 1 measurement.
Observations:
C11 at 115x.
- 16 -
Zone 172
Soulie 342
Position: 1827+0659
A
B
C
Magnitude
10.47
11.85
11.82
Rating: 5 M
Separation
—
12.6 26.2
PA
—
293 +
318
Year
—
1982
1982
Spectra
Colors
W
?
?
Notes:
AB 1906: 12.7 @ 292. 3 measurements.
AC 1 measurement.
Observations:
C11 at 115x.
Distance (LY): 710
Total luminosity (Suns): 4.01
Difficult
STF 2283
Rating: 3 D
ADS 11110; HD 166257; SAO 123189
Position: 1810+0609
A
B
Magnitude
7.68
8.13
Separation PA
—
—
0.6 59 -!
Year
—
1996
Spectra
F5 V
Colors
W
W
Notes:
1829: 1.2 @ 93. Over 100 measurements.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches.
Separation: AB = 1,690 feet.
Distance (LY): 347
Total luminosity (Suns): 13.3
- 17 -
Zone 172
72 Oph
OS 342; ADS 11076; HD 165777; SAO 123142
Position: 1807+0934
A
B
C
Magnitude
3.73
14.00
11.00
Separation
—
25.4 +
54 +
PA
—
299 166 -
Rating: 5 D
Year
—
1934
1911
Spectra
A4 III
Colors
W
No
W
Notes:
AB 1890: 25.3 @ 301. 3 measurements.
AC 1878: 52 @ 168. 5 measurements.
A is spectroscopic binary.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.0 inches.
Separation: AB = 3.28 miles; AC = 7.00 miles.
Distance (LY): 83
Total luminosity (Suns): 17.4
Deep Sky Objects
Easy
NGC 6572
Other Names: PK 34+11.1
Rating: 2 E
Position: 1812+0651
Type: Pn
Dimensions: 15" x 13"
Class: 2a
Magnitude: 9.0
Observations:
C8 at 206x. Bright, starlike, and mottled at high powers. It has a N-S axis and a
definite bluish-green tint. Steve Coe says it is the greenest nebula he has ever seen—
"this guy is as green as an Irishman's coat on St. Patrick's Day. Alright, alright, it is as
green as lime Jello." An 11m star lies 5 min E.
- 18 -
Zone 172
C11 at 193x. Very bright oval (N/S
axis) with fuzzy edges. At 393x, it
blinks well. The O-III filter was no help
on this one.
Model (where the Sun is a baseball):
Its diameter would be 47 miles.
Distance (LY): 2,000
Luminosity (suns): 79
NGC 6572
Planetary nebula (2a)
Observed with C11 on 7/24/03
Magnification: 339x
NGC 6633
Rating: 2 E
Other Names: H VIII 72
Astronomical League Program: Herschel 400 Club, Urban Deep Sky Club, Binocular
Deep Sky Club
Position: 1828+0634
Type: Oc
Dimensions: 27'
Class: III 2m
Cluster population: 65
Magnitude: 4.6
Notes:
It is 660 million years old, with the earliest spectral type being B6. At least 159 stars
belong to this cluster, which is 27,000 light years from the galactic center and 250 light
years above its plane.
Observations:
C8 at 65x. Bright and colorful (many orange and yellow stars), it has a dominant
fish-hook pattern. It is large and loose, and has a very small arrowhead on the NW edge.
C11 at 65x. Loose, scattered and bright. Mostly white stars. There is a flat triangle
at the N end, an isosceles one in the cetner. Narrow triangle at the S end.
- 19 -
Zone 172
Model (where the Sun is a baseball):
Its diameter would be 2,530 miles, with
the stars being 629 miles apart.
Distance (LY): 1,230
Luminosity (suns): 1,710
NGC 6633
Open cluster (III 2 m; 65 stars)
Observed with C8 on 8/22/92
Magnification: 80x
PK 38+12.1
Other Names: Canon 3-1
Rating: 3 E
Position: 1818+1009
Type: Pn
Surface brightness: 7.9
Class: 2
Dimensions: 7" x 6"
Magnitude: 13.5
Observations:
C11 at 140x. It looks like a bloated star in a rich field at 140x. 193x with the O-III
filter was no help.
Distance (LY): 6,500
Total luminosity (Suns): 13
- 20 -
Zone 172
Moderate
UGC 11093
Other Names: PGC 61300
Rating: 3 M
Position: 1802+0658
Type: Gal
Surface brightness: 13.3
Class: Sc
Dimensions: 4.6' x 0.8'
Magnitude: 13.0
PA: 4
Observations:
C8 at 104x. The nucleus is very strong and small; the body shows up as a faint N-S
spindle.
Radial velocity (k/s): +1,964
Zone 172, Map 3
Double Stars
Easy
STF 2399
Rating: 2 E
ADS 11716; HD 174238; SAO 104131
Position: 1849+1313
A
B
C
D
BC
Magnitude
8.80
9.30
10.30
12.60
Separation
—
15.6 31.5 -
PA
—
118 49 -
Year
—
1982
1965
42.0 +
69 -
1965
Spectra
A0
A2
Colors
Y!!
dB!!
W?
No
Notes:
AB 1829: 15.8 @ 120. 18 measurements. The stars show similar proper motions.
AC 1829: 33.3 @ 50. 11 measurements.
BD 1843: 39.9 @ 71. 3 measurements.
- 21 -
Zone 172
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.42 inches; B = 7.61 inches.
Separation: AB = 2,165 feet; AC = 4,382 feet; BD = 1.11 miles.
Distance (LY): 17
Total luminosity (Suns): 0.013
STF 2330
Rating: 3 E
ADS 11418; HD 170879; SAO 103802
Position: 1831+1311
A
B
Magnitude
8.17
9.88
Separation PA
—
—
16.8 167 -
Year
—
2000
Spectra
K0
G5
Colors
Y
?
Notes:
1829: 20.3 @ 177. 37 measurements. The stars show similar proper motions.
Observations:
C8 at 83x. Chris Peters (Rio Rico, AZ, 8" Newt) saw pY and bW. John Ryan
(Salamanca, Spain; 8" SCT)— W and W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.6 inches; B = 21.5 inches.
Separation: AB = 86.5 miles.
Distance (LY): 3,300
Total luminosity (Suns): 595
STF 2341
Rating: 3 E
HD 171535; SAO 103872
Position: 1835+1127
A
B
Magnitude
9.15
10.31
Separation PA
—
—
15.5 +
265 -
- 22 -
Year
—
1991
Spectra
A5
Colors
W
B
Zone 172
Notes:
1821: 15.4 @ 267. 17 measurements. The stars show a similar, but small, proper
motion.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.70 inches.
Separation: AB = 1.59 miles.
Distance (LY): 66
Total luminosity (Suns): 0.11
h870
Rating: 3 E
HD 174715
Position: 1851+1019
A
B
C
D
Magnitude
9.47
12.30
8.99
8.70
Separation
—
11.4 =
65.6 21.8
PA
—
220 +
249 +
22
Year
—
1910
1982
1879
Spectra
Colors
W
No
W
No
Notes:
AB 1828: 11.4 @ 219. 6 measurements.
AC 1909: 65.7 @ 248. 5 measurements.
CD 1 measurement.
Observations:
C8 at 104x. The very rich open cluster NGC 6709 forms the backdrop; this cluster
always suggests a shopping cart to me!
This pair is the NE corner of the cart's "basket".
STF 2411
Rating: 3 E
ADS 11773; HD 174897; SAO 104203
Position: 1852+1432
A
B
Magnitude
6.55
9.66
Separation PA
—
—
13.5 =
95 -
- 23 -
Year
—
1991
Spectra
G9 III
F7 V
Colors
yO!
rO!
Zone 172
Notes:
1829: 13.5 @ 96. 19 measurements. The stars show similar proper motions. B is
thought to be a spectroscopic binary.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 2.85 inches; B = 15.7 inches.
Separation: AB = 8.44 miles.
Distance (LY): 401
Total luminosity (Suns): 31
STF 2336
Rating: 4 E
ADS 11437
Position: 1833+1349
A
B
Magnitude
9.10
10.20
Separation PA
—
—
6.6 +
8=
Year
—
1976
Spectra
F0
Colors
W
pO
Notes:
1830: 6.3 @ 8. 17 measurements. The stars share common proper motion.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.1 inches.
Separation: AB = 1.42 miles.
Distance (LY): 138
Total luminosity (Suns): 0.4
A. G. 363
Soulie 229 (C, D); HD 172398; SAO 103958
Position: 1840+1146
A
B
C
D
Magnitude
9.44
10.77
12.08
11.03
Separation
—
16.0 38
61149
PA
—
195 194
1982
- 24 -
Rating: 4 E
Year
—
1982
1982
Spectra
F5
Colors
W
bW
W
W
Zone 172
Notes:
AB 1893: 17.6 @ 197. 3 measurements.
AC and AD, 1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.2 inches.
Separation: AB = 4,066 feet; AC = 1.83 miles; AD = 2.95 miles.
Distance (LY): 31
Total luminosity (Suns): 0.06
STF 2396
Rating: 4 E
ADS 11696; HD 174080; SAO 104119
Position: 1848+1045
A
B
C
D
Magnitude
7.99
11.70
10.60
10.90
Separation
—
67.7 +!!
160.0 +
129.7 -!!
PA
—
335 +!!
11 75 +!
Year
—
1983
1910
1910
Spectra
K0
Colors
Y
W
W
W
Notes:
AB 1829: 11.7 @ 233. 41 measurements.
AC 1891: 153.2 @ 13. 3 measurements.
AD 1891: 173.5 @ 50. 3 measurements.
Observations:
C8 at 104x. Nice trapezoid.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.3 inches.
Separation: AB = 5.91 miles; AC = 14.0 miles; AD = 11.3 miles.
Distance (LY): 56
Total luminosity (Suns): 0.18
- 25 -
Zone 172
OSS 174
Rating: 4 E
HD 173983; SAO 104109
Position: 1848+1110
A
B
Magnitude
7.51
8.34
Separation PA
—
—
104.3 159 -
Year
—
1992
Spectra
B9
B9
Colors
W
W
Notes:
1874: 106.1 @ 160. 21 measurements.
The stars have a small difference in proper motion.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.87 inches; B = 5.13 inches.
Separation: AB = 283 miles.
Distance (LY): 1,740
Total luminosity (Suns): 246
Smart 82
Rating: 4 E
HD 174734; SAO 104187
Position: 1851+1022
A
B
Magnitude
9.65
12.10
Separation PA
—
—
13.6
245
Notes:
1 measurement.
Observations:
C11 at 115x.
- 26 -
Year
—
1907
Spectra
Colors
W
W
Zone 172
h1353
Rating: 4 E
ADS 11808; HD 229971
Position: 1854+1118
A
B
Magnitude
10.01
10.90
Separation PA
—
—
8.5 +
208 +
Year
—
1936
Spectra
A0
Colors
W
W
Notes:
1879: 8.4 @ 207. 5 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.85 inches.
Separation: AB = 1.84 miles.
Distance (LY): 139
Total luminosity (Suns): 0.215
Cogshall 1
Abbott 107 (E-G); ADS 11843; HD 230093; SAO 104265
Position: 1856+1254
A
B
C
D
E
Magnitude
9.21
12.46
9.59
11.60
12.20
Separation
—
24.0 38.6 108.2
PA
—
284 54 1991
59
Year
—
1991
1991
1988
Rating: 4 E
Spectra
A2 V
Colors
W
?
O?
No
No
Notes:
AB 1903: 24.9 @ 286. 4 measurements. Hipparcos data indicates this pair may be
optical.
AC 1893: 38.9 @ 55. 9 measurements. Hipparcos shows the C star to be at a
distance of 382 light years.
AE 1 measurement.
AF (11.11m) 1988: 123.1 @ 108. 1 measurement.
AG (13.59m) 1988: 98.0 @ 252. 1 measurement.
CD 1904: 1.9 @ 317. 1991: 3.4+ @ 315-. 12 measurements.
- 27 -
Zone 172
Observations:
C8 at 104x.
Kustner 120
Position: 1842+1113
A
B
Magnitude
9.65
11.07
Rating: 5 E
Separation PA
—
—
60.2 +
306 =
Year
—
1910
Spectra
A0
Colors
W
W
Notes:
1901: 60.1 @ 306. 3 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.72 inches.
Separation: AB = 64.8 miles.
Distance (LY): 690
Total luminosity (Suns): 6.53
A. G. 365
Rating: 5 E
HD 229851; SAO 104213
Position: 1853+1234
A
B
Magnitude
9.11
11.43
Separation PA
—
—
18.3 +
185 +
Notes:
1894: 16.6 @ 182. 4 measurements.
Observations:
C11 at 115x.
- 28 -
Year
—
1991
Spectra
K0
Colors
Y
W?
Zone 172
Moderate
STF 2404
Rating: 3 M
ADS 11750; HD 174569; SAO 104170
Position: 1851+1058
A
B
Magnitude
6.37
7.44
Separation PA
—
—
3.6 +
180 -
Year
—
1999
Spectra
K5 III
K3 III
Colors
dO
O
Notes:
1822: 3.2 @ 187. Over 100 measurements. Star A is a spectroscopic binary and an
infra-red source.
Observations:
C8 at 280x. Webb: Y, B. "Colors remarkable." Franks: R.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 54.3 inches; B = 30.5 inches.
Separation: AB = 10.4 miles.
Distance (LY): 1,860
Total luminosity (Suns): 958
STF 2408
Rating: 3 M
ADS 11766; HD 174792; SAO 104193
Position: 1852+1047
A
B
Magnitude
8.1
9.52
Separation PA
—
—
2.3 =
91 -
Notes:
1830: 2.3 @ 97. 46 measurements.
Observations:
C8 at 280x. Webb: W, W.
- 29 -
Year
—
1997
Spectra
A0
Colors
W
O
Zone 172
A. G. 364
Rating: 4 M
ADS 11594; SAO 104006
Position: 1843+1152
A
B
C
Magnitude
9.46
10.40
10.40
Separation
—
26.5 +!!
24.1 -
PA
—
3 -!!
16 +
Year
—
1982
1982
Spectra
G5
Colors
Y
W
W
Notes:
AB 1895: 8.9 @ 149. 2 measurements.
AC 1894: 30.8 @ 3. 2 measurements.
AD 1 measurement.
Observations:
C11 at 115x. C was difficult.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.1 inches.
Separation: AB = 9.51 miles; AC = 8.65 miles.
Distance (LY): 230
Total luminosity (Suns): 1.25
Hussey 258
Rating: 4 M
ADS 11786; HD 175012
Position: 1853+1137
A
B
Magnitude
9.56
10.37
Separation PA
—
—
2.4 217 +
Notes:
1900: 2.5 @ 216. 28 measurements.
Observations:
C11 at 339x.
- 30 -
Year
—
1999
Spectra
A0
Colors
W
W
Zone 172
Ball 33
Rating: 5 M
HD 172100; SAO 103927
Position: 1838+1127
A
B
Magnitude
8.36
12.63
Separation PA
—
—
132 265 =
Year
—
1910
Spectra
K5
Colors
Y
W?
Notes:
1876: 133 @ 265. 3 measurements.
Given the fact that these stars are roughly 20 light years apart, they are probably an
optical system.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 35.1 inches.
Separation: AB = 6,645 miles.
Distance (LY): 32,260
Total luminosity (Suns): 380
OS 362
Rating: 5 M
ADS 11693; HD 174043; SAO 104115
Position: 1848+1039
A
B
C
Magnitude
8.10
11.71
13.70
Separation
—
7.8 +
11.6
PA
—
341 +
103
Notes:
AB 1853: 7.6 @ 340. 16 measurements.
AC 1 measurement.
Observations:
C11 at 115x.
- 31 -
Year
—
1991
1898
Spectra
G5
Colors
Y
?
No
Zone 172
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.5 inches.
Separation: AB = 29.5 miles; AC = 43.8 miles.
Distance (LY): 2,420
Total luminosity (Suns): 275
11 Aql
STF 2424; ADS 11902; HD 176303; SAO 104308
Position: 1859+1338
A
B
C
Magnitude
5.26
9.57
12.40
Separation
—
19.9 78 -
PA
—
299 +!
269 +
Rating: 5 M
Year
—
1996
1988
Spectra
F6 IV
Colors
W
bW
?
Notes:
AB 1820: 20.1 @ 236. 53 measurements.
AC 1911: 79 @ 262. 3 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.25 inches.
Separation: AB = 4.81 miles; AC = 18.9 miles.
Distance (LY): 155
Total luminosity (Suns): 15.1
Difficult
OS 357
Rating: 4 D
ADS 11484; HD 171728; SAO 103885
Position: 1836+1144
A
B
Magnitude
7.64
7.73
Separation PA
—
—
0.4 82 -!!
Notes:
1843: 0.5 @ 272. Over 100 measurements.
- 32 -
Year
—
1997
Spectra
A7 V
Colors
W
W
Zone 172
Orbital period of 324 years, with semi-major axis of 0.46", motion retrograde.
Observations:
C11 at 634x. I got a peanut.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.75 inches.
Separation: AB = 1,901 feet.
Distance (LY): 580
Total luminosity (Suns): 44
STF 2402
Rating: 4 D
ADS 11722; HD 174348; SAO 104151
Position: 1850+1040
A
B
Magnitude
8.94
9.27
Separation PA
—
—
1.4 +
208 +
Year
—
1997
Spectra
A0
Colors
W
W
Notes:
1830: 0.8 @ 198. Over 100 measurements.
Observations:
C8 at 280x.
h1334
Jonckheere 2142?; HD 172632; SAO 103981
Position: 1841+1214
A
B
Magnitude
8.34
12.70
Separation PA
—
—
7.0 85 -
Notes:
1828: 10.0 @ 86. 2 measurements.
Observations:
C11 at 193x.
- 33 -
Rating: 5 D
Year
—
1942
Spectra
G0
Colors
Y
W?
Zone 172
Bur 265
Rating: 5 D
ADS 11735; HD 174485
Position: 1850+1131
A
B
Magnitude
7.11
9.34
Separation PA
—
—
1.4 +
227 -
Year
—
1996
Spectra
A0 V
G III
Colors
yW
yW
Notes:
1875: 1.5 @ 236. 62 measurements.
Observations:
C8 at 280x. Elongated. Very, very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches; B = 17.2 inches.
Separation: AB = 7.42 miles.
Distance (LY): 3,400
Total luminosity (Suns): 1,275
STF 2412
Rating: 5 D
ADS 11778; HD 174934
Position: 1853+1400
A
B
Magnitude
8.96
9.03
Separation PA
—
—
1.4 +
56 +
Notes:
1830: 1.3 @ 53. 39 measurements.
Observations:
C8 at 697x. Very difficult.
- 34 -
Year
—
1999
Spectra
K2
Colors
yW
W
Zone 172
Deep Sky Objects
Easy
NGC 6709
Rating: 3 E
Other Names: Melotte 214; Raab 137; Collinder 392
Astronomical League Program: Urban Deep Sky Club, Binocular Deep Sky Club
Position: 1852+1021
Type: Oc
Dimensions: 13'
Class: IV 2m
Cluster population: 40
Magnitude: 8.0
Notes:
It is 151 million years old and the earliest spectral type is B5. At least 111 stars
belong to this group, which lies 25,600 light years from the galactic center and 240 light
years above the galactic plane.
Observations:
C8 at 104x. Faint, and dominated by an 8m star at the S end. There is a wide B and
D double on the W edge and a nice triplet on the SE edge. Most of the members are
white.
C11 at 115x. Dim, loose and scattered. Dominated by a bright (8m) double star
(h870), 30 sec W of Smart 82.
Model (where the Sun is a baseball):
Its diameter would be 3,770 miles. Its stars would be 565 miles apart.
Distance (LY): 3,500
Luminosity (suns): 475
- 35 -
Zone 172
Zone 172, Map 4
Double Stars
Easy
South 704
Rating: 3 E
HD 172521; SAO 123792
Position: 1840+0942
A
B
Magnitude
8.48
8.98
Separation PA
—
—
57.8 +
264 -
Year
—
1991
Spectra
F0
F5
Colors
W
pO
Notes:
1825: 57.2 @ 268. 16 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. The stars have different proper motions.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.7 inches; B = 13.8 inches.
Separation: AB = 75.8 miles.
Distance (LY): 840
Total luminosity (Suns): 34
Bur 136
Rating: 3 E
ADS 11596; HD 172979
Position: 1843+0545
A
B
Magnitude
9.11
10.22
Separation PA
—
—
4.5 +
7-
Notes:
1874: 4.4 @ 8. 21 measurements.
- 36 -
Year
—
1996
Spectra
B9
Colors
W
B
Zone 172
Observations:
C8 at 104x. This star is the central star of a 3-star "boomerang" that dominates the
field.
Rich, bright field.
A nice 9m double lies just 12 min ESE.
Jonckheere 527
Rating: 3 E
ADS 11603
Position: 1843+0502
A
B
Magnitude
10.15
10.70
Separation PA
—
—
3.2 +
39 -
Year
—
1991
Spectra
A0
Colors
W
W
Notes:
1899: 2.9 @ 44. 13 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.90 inches.
Separation: AB = 3,221 feet.
Distance (LY): 123
Total luminosity (Suns): 0.17
Jonckheere 530
Rating: 3 E
ADS 11739; HD 174508
Position: 1850+0850
A
B
Magnitude
9.24
10.30
Separation PA
—
—
3.5 +
183 -
Notes:
1898: 2.6 @ 193. 10 measurements.
Observations:
C11 at 115x.
- 37 -
Year
—
1943
Spectra
F5
Colors
W
O
Zone 172
h5505
Rating: 3 E
HD 175990; SAO 124102
Position: 1858+0942
A
B
Magnitude
9.28
9.31
Separation PA
—
—
15.3 129 -?
Year
—
1991
Spectra
G0
G0
Colors
yW
yW
Notes:
1906: 18.7 @ 323. 8 measurements. Quadrant reversal?
Hipparcos/Tycho mission data show different distances for these stars (344 and 423
light years); they may be optical.
Observations:
C8 at 104x. A lovely pair!
h860
Position: 1831+0925
A
B
Magnitude
9.52
10.71
Rating: 4 E
Separation PA
—
—
22.9 273 -
Year
—
1991
Spectra
G0
Colors
Y
O?
Notes:
1897: 23.2 @ 278. 5 measurements.
Hipparcos/Tycho mission data show different distances for these stars (2,050 and 16
light years); they may be optical.
Observations:
C8 at 104x.
STF 2329
Rating: 4 E
ADS 11420; HD 170881; SAO 123602
Position: 1831+0628
A
B
Magnitude
7.89
9.26
Separation PA
—
—
4.3 +
43 =
- 38 -
Year
—
1997
Spectra
B9 IV
Colors
W
O
Zone 172
Notes:
1830: 4.2 @ 43. 34 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.0 inches.
Separation: AB = 4.89 miles.
Distance (LY): 730
Total luminosity (Suns): 37
OS 355 rej
Rating: 4 E
ADS 11448; HD 171247; SAO 123634
Position: 1833+0816
A
B
Magnitude
6.42
10.19
Separation PA
—
—
37.8 249 =
Year
—
1982
Spectra
B8 IIIp
Colors
W
O
Notes:
1866: 39.0 @ 249. 9 measurements.
Hipparcos/Tycho data show different distances for these stars (1,580 and 127 light
years); they may be optical.
Observations:
C8 at 83x. Very rich field.
Soulie 495
Position: 1833+0539
A
B
Magnitude
10.03
10.70
Rating: 4 E
Separation PA
—
—
8.5 +
100 +
Notes:
1898: 8.3 @ 99. 6 measurements.
Observations:
C11 at 115x.
- 39 -
Year
—
1991
Spectra
Colors
B
W
Zone 172
STF 2346
Rating: 4 E
ADS 11506; HD 171951
Position: 1837+0732
A
B
Magnitude
7.89
9.74
Separation PA
—
—
28.3 +! 297 -
Year
—
1991
Spectra
G0
Colors
yW
rO
Notes:
1829: 15.4 @ 283. 40 measurements.
Francisco Manuel Rica Romero, a 33 Doubles Member, did some research on the PM
of the components of this pair. "A" has pm in RA of +0.056 and Dec of -0.064, while B
has +0.009 and -0.004 respectively, both from Hipparcos. They appear, then, to be an
optical pair.
Observations:
C8 at 104x. On 8/12/00 (UT), I used the MicroGuide and Barlow to measure the pair
and obtained 35.8" @ 242. Quite a lot of movement for 9 years!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.8 inches.
Separation: AB = 10.6 miles.
Distance (LY): 240
Total luminosity (Suns): 3.71
Baillaud 2933
Position: 1838+0504
A
B
Magnitude
10.53
11.21
Rating: 4 E
Separation PA
—
—
19.1 +
235 =
Year
—
1991
Spectra
F8
Notes:
1899: 18.2 @ 235. 5 measurements.
Observations:
C8 at 104x. Very, very rich field (the southern reaches of IC 4657).
- 40 -
Colors
W
W
Zone 172
OS 361
Rating: 4 E
HD 173159; SAO 123853
Position: 1844+0539
A
B
Magnitude
8.16
9.33
Separation PA
—
—
22.8 =
172 -
Year
—
1998
Spectra
A2
Colors
W
bW
Notes:
1843: 22.8 @ 173. 22 measurements.
The stars have different proper motions.
Observations:
C8 at 104x. Very rich and bright field to the W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.13 inches.
Separation: AB = 6.00 miles.
Distance (LY): 169
Total luminosity (Suns): 1.6
Olivier 215
Rating: 4 E
ADS 11887; HD 176041
Position: 1858+0559
A
B
Magnitude
10.22
10.83
Separation PA
—
—
5.7 +
104 -
Year
—
1991
Spectra
G0
Colors
Y
pO
Notes:
1905: 5.5 @ 105. 8 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.1 inches.
Separation: AB = 1.04 miles.
Distance (LY): 117
Total luminosity (Suns): 0.14
- 41 -
Zone 172
LDS 1013
Rating: 5 E
HD 173055; SAO 123839
Position: 1843+0742
A
B
Magnitude
8.64
10.00
Separation PA
—
—
101.0
277
Year
—
1936
Spectra
K0
Colors
Y
W
Notes:
1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.3 inches.
Separation: AB = 23.5 miles.
Distance (LY): 149
Total luminosity (Suns): 0.78
STF 2389 rej
Rating: 5 E
HD 173953; SAO 123927
Position: 1848+0743
A
B
Magnitude
8.90
10.70
Separation PA
—
—
31.2 +
303 =
Year
—
1910
Spectra
A3
Colors
W
W?
Notes:
1904: 30.7 @ 303. 2 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.80 inches.
Separation: AB = 60.9 miles.
Distance (LY): 1,250
Total luminosity (Suns): 40
Moderate
- 42 -
Zone 172
STF 2375
Rating: 2 M
Tweedledum and Tweedledee; Finsen 332; ADS 11640; HD 173495; SAO 123886
Position: 1846+0530
A
B
Magnitude
5.82
5.82
Separation PA
—
—
2.6 +
119 +
Year
—
1997
Spectra
A1 V
Colors
W
O
Notes:
AB 1825: 2.2 @ 108. Over 100 measurements. The orbit takes over 5,600 years.
Both stars are very close binaries too (discovered by Finsen in 1953).
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.70 inches.
Separation: AB = 2.88 miles.
Distance (LY): 710
Total luminosity (Suns): 274
STF 2355 rej
Fox 233 (D); ADS 11555; HD 172424; SAO 123782
Position: 1840+0722
A
B
C
D
Magnitude
6.29
11.68
10.20
12.50
Separation
—
21.8 108.0 +
50.4
PA
—
129 38 224
Notes:
AB 1904: 25.0 @ 139. 8 measurements.
AC 1918: 107.3 @ 40. 2 measurements.
AD 1 measurement.
Observations:
C11 at 115x.
- 43 -
Rating: 4 M
Year
—
1982
1960
1912
Spectra
G8 III
Colors
Y
W?
W
?
Zone 172
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 43.5 inches.
Separation: AB = 16.6 miles; AC = 82.2 miles; AD = 38.4 miles.
Distance (LY): 488
Total luminosity (Suns): 59
Jonckheere 102
Rating: 5 M
ADS 11548
Position: 1840+0705
A
B
C
Magnitude
10.62
14.00
11.07
Separation
—
3.9 +
30.8 +
PA
—
50 +
294 +
Year
—
1945
1991
Spectra
Colors
W
No
W
Notes:
AB 1910: 2.2 @ 41. 5 measurements.
AC 1909: 30.7 @ 293. 5 measurements.
Observations:
C8 at 104x. A rich field lies just to the W of this pair.
Distance (LY): 40
Total luminosity (Suns): 0.012
Jonckheere 1835
Position: 1851+0843
A
B
Magnitude
10.43
11.20
Rating: 5 M
Separation PA
—
—
5.0 170 -
Year
—
1941
Spectra
Notes:
1898: 8.4 @ 175. 2 measurements.
Observations:
C11 at 115x. This pair lies in the same field as Jonckheere 530.
- 44 -
Colors
W
W
Zone 172
Difficult
OS 354
Rating: 3 D
ADS 11432; HD 170987; SAO 123609
Position: 1832+0647
A
B
Magnitude
7.46
8.41
Separation PA
—
—
0.6 203 +
Year
—
1996
Spectra
F5 V
Colors
W
W
Notes:
1843: 0.7 @ 150. Over 100 measurements.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches.
Separation: AB = 1,478 feet.
Distance (LY): 303
Total luminosity (Suns): 10.6
Jonckheere 99
Rating: 5 D
ADS 11496; HD 171834; SAO 123693
Position: 1837+0641
A
B
Magnitude
5.43
12.62
Separation PA
—
—
75.5 +
81 -
Notes:
1910: 72.4 @ 89. 3 measurements.
Star A is a spectroscopic binary.
There are three more very faint comes.
Observations:
C8 at 104x.
- 45 -
Year
—
1982
Spectra
F3 V
Colors
W
?
Zone 172
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.80 inches.
Separation: AB = 12.1 miles.
Distance (LY): 103
Total luminosity (Suns): 5.804
Deep Sky Objects
Easy
IC 4756
Rating: 2 E
Other Names: Melotte 210; Collinder 386;Raab 135
Astronomical League Program: Urban Deep Sky Club, Binocular Deep Sky Club
Position: 1839+0527
Type: Oc
Dimensions: 70'
Class: III 2m
Cluster population: 80
Magnitude: 8.0
Notes:
It is 580 million years old. The
brightest star is 8.7m.
It is 26 light years in diameter.
Observations:
C8 at 83x. Faint, it looks a little like
Sagitta or Cassiopeia and looks best in the
spotter.
C11 at 65x. Very sparse and splattered
group. 44 stars were counted, with two nice
pairs on the N side.
Model (where the Sun is a baseball):
Its diameter would be 8,520 miles, and
its stars 970 mi apart.
Distance (LY): 1,300
Luminosity (suns): 83
IC 4756
Open cluster (III 2 m; 80 stars)
Observed with C8 on 8/22/92
Magnification: 32x
- 46 -
Zone 172
Moderate
MCG +01-48-001
Other Names: PGC 62459
Rating: 4 M
Position: 1849+0526
Type: Gal
Magnitude: 11.0
Dimensions: 0.7' x 0.5'
Observations:
C8 at 104x. It is a fuzzed over "star" at lower powers; at 200x, you can begin to pick
up some of the halo.
Difficult
Graff 1
Rating: 5 D
Position: 1835+0510
Type: Oc
Magnitude: 13.0
Dimensions: 5'
Observations:
C11 at 140x. Extremely faint and grainy area in a rich field. No stars were actually
resolved.
- 47 -
Zone 172
Zone 172 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
STF 2276
1806+1200
1E
1
STF 2399
1849+1313
2E
3
OSS 161
1800+0851
3E
2
OSS 164
1803+0755
3E
2
STF 2265
1804+0628
3E
2
STF 2285
1809+1329
3E
1
Schjellerup 17
1827+0632
3E
2
STF 2330
1831+1311
3E
3
STF 2341
1835+1127
3E
3
South 704
Jonckheere
527
1840+0942
3E
4
1843+0502
3E
4
Bur 136
Jonckheere
530
1843+0545
3E
4
1850+0850
3E
4
h870
1851+1019
3E
3
STF 2411
1852+1432
3E
3
h5505
1858+0942
3E
4
STF 2269
1804+1447
4E
1
A. G. 358
1807+1359
4E
1
Hertzsprung 12
1807+0920
4E
Component
A
B
C
A
B
C
D
BD
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
D
A
B
A
B
A
B
A
B
C
D
BC
A
B
2
- 48 -
Mag
6.51
6.91
12.00
8.80
9.30
10.30
12.60
5.67
9.16
10.98
8.09
9.11
9.91
10.59
8.52
9.93
8.31
10.40
8.17
9.88
9.15
10.31
8.48
8.98
10.15
10.70
9.11
10.22
9.24
10.30
9.47
12.30
8.99
8.70
6.55
9.66
9.28
9.31
8.40
11.20
9.86
10.48
10.40
8.86
10.55
10.50
Separation
—
6.9 +
63.0 —
15.6 31.5 -
PA
—
257 63.0 —
118 31.5 -
42.0 +
—
61.7 14.3 -!!
—
50.4 +
—
23.7 —
3.6 =
—
51 +
—
16.8 —
15.5 +
—
57.8 +
—
3.2 +
—
4.5 +
—
3.5 +
—
11.4 =
65.6 21.8
—
13.5 =
—
15.3 —
22.7 +
—
3.3 81.9 +
69 —
73 14.3 -!!
—
0—
282 —
333 —
351 =
—
167 —
265 —
264 —
39 —
7—
183 —
220 +
65.6 21.8
—
95 —
129 -?
—
164 =
—
327 +
81.9 +
0.6 —
134.4 -
122 —
219 =
Zone 172
Designation
Position
Rating
Map
OS 345
1813+0549
4E
2
Fox
1817+1401
4E
1
Soulie 162
1823+0614
4E
2
STF 2329
1831+0628
4E
4
h860
1831+0925
4E
4
STF 2336
1833+1349
4E
3
OS 355 rej
1833+0816
4E
4
Soulie 495
1833+0539
4E
4
STF 2346
1837+0732
4E
4
Baillaud 2933
1838+0504
4E
4
A. G. 363
1840+1146
4E
3
OS 361
1844+0539
4E
4
STF 2396
1848+1045
4E
3
OSS 174
1848+1110
4E
3
Smart 82
1851+1022
4E
3
h1353
1854+1118
4E
3
Cogshall 1
1856+1254
4E
3
Olivier 215
1858+0559
4E
4
H V 74
1808+1304
5E
1
h1316
1815+1327
5E
1
h5494
1819+0716
5E
2
Roe 99
1823+0835
5E
2
Component
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
D
A
B
A
B
C
D
A
B
A
B
A
B
A
B
C
D
E
A
B
A
B
A
B
A
B
A
B
C
- 49 -
Mag
7.59
9.91
9.61
9.07
10.64
10.36
10.70
7.89
9.26
9.52
10.71
9.10
10.20
6.42
10.19
10.03
10.70
7.89
9.74
10.53
11.21
9.44
10.77
12.08
11.03
8.16
9.33
7.99
11.70
10.60
10.90
7.51
8.34
9.65
12.10
10.01
10.90
9.21
12.46
9.59
11.60
12.20
10.22
10.83
6.61
10.44
10.33
10.92
5.41
11.87
10.62
10.80
11.54
Separation
—
1.5 +
86.9 —
84
—
20.8 +
—
4.3 +
—
22.9 —
6.6 +
—
37.8 —
8.5 +
—
28.3 +!
—
19.1 +
—
16.0 38
61
—
22.8 =
—
67.7 +!!
160.0 +
129.7 -!!
—
104.3 —
13.6
—
8.5 +
—
24.0 38.6 108.2
PA
—
65 +
86.9 —
319
—
142 +
—
43 =
—
273 —
8=
—
249 =
—
100 +
—
297 —
235 =
—
195 38
61
—
172 —
335 +!!
160.0 +
129.7 -!!
—
159 —
245
—
208 +
—
284 38.6 59 (1988)
—
5.7 +
—
40.8 —
14.5 —
42.2 +
—
6.1 +
25.5 -
—
104 —
139 +
—
258 =
—
71 +
—
223 +
25.5 -
Zone 172
Designation
Position
Rating
Map
Fox 228
1824+1241
5E
1
LDS 1012
1826+0847
5E
1
Kustner 120
1842+1113
5E
3
LDS 1013
1843+0742
5E
4
STF 2389 rej
1848+0743
5E
4
A. G. 365
1853+1234
5E
3
STF 2375
1846+0530
2M
4
STF 2254
1803+1237
3M
1
Bur 464
1828+0633
3M
2
STF 2404
1851+1058
3M
3
STF 2408
1852+1047
3M
3
Soulie 132
1807+1120
4M
1
STF 2311
1822+1126
4M
1
Jonckheere 95
1828+0709
4M
2
STF 2355 rej
1840+0722
4M
4
A. G. 364
1843+1152
4M
3
Hussey 258
1853+1137
4M
3
Heintz 867
1803+0745
5M
2
Engelmann 63
1807+0853
5M
2
Perrine 2
1820+1403
5M
1
Component
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
C
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
A
B
A
B
A
B
C
D
E
A
B
C
- 50 -
Mag
11.29
11.15
7.83
8.32
9.65
11.07
8.64
10.00
8.90
10.70
9.11
11.43
5.82
5.82
9.11
9.31
13.00
8.97
9.73
6.37
7.44
8.10
9.52
9.16
11.80
10.50
9.10
10.05
10.20
10.40
10.05
10.53
10.50
10.10
6.29
11.68
10.20
12.50
9.46
10.40
10.40
9.56
10.37
10.30
11.10
6.96
10.47
13.10
13.00
10.97
9.17
11.05
11.54
Separation
—
24.3 =
—
606.0 —
60.2 +
—
101.0
—
31.2 +
—
18.3 +
—
2.6 +
—
3.5 +
55.3
—
1.1 =
—
3.6 +
—
2.3 =
—
12.8
22.8
—
3.0 -!
145.5 +
147.4 —
2.1 +
32.3 70.3
—
21.8 108.0 +
50.4
—
26.5 +!!
24.1 —
2.4 —
2.9
—
129.6 167.4
24.8
149.5
—
3.6 +
52.7 +
PA
—
110 -?
—
163 —
306 =
—
277
—
303 =
—
185 +
—
119 +
—
266 =
55.3
—
108 —
180 —
91 —
63
22.8
—
109 -!
145.5 +
147.4 —
124 +
32.3 70.3
—
129 108.0 +
50.4
—
3 -!!
24.1 —
217 +
—
337
—
245 +
167.4
24.8
78
—
252.7 +
Zone 172
Designation
Roe 100
Position
1824+0829
Rating
5M
Map
Component
A
B
C
BC
A
B
C
A
B
A
B
C
A
B
C
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
1
Soulie 342
1827+0659
5M
2
Ball 33
1838+1127
5M
3
Jonckheere
102
1840+0705
5M
4
OS 362
Jonckheere
1835
1848+1039
5M
3
1851+0843
5M
4
11 Aql
1859+1338
5M
3
STF 2283
1810+0609
3D
2
OS 354
1832+0647
3D
4
A. G. 222
1822+1413
4D
1
OS 357
1836+1144
4D
3
STF 2402
1850+1040
4D
3
72 Oph
1807+0934
5D
2
Jonckheere 99
1837+0641
5D
4
h1334
1841+1214
5D
3
Bur 265
1850+1131
5D
3
STF 2412
1853+1400
5D
3
- 51 -
Mag
9.16
9.77
11.40
10.47
11.85
11.82
8.36
12.63
10.62
14.00
11.07
8.10
11.71
13.70
10.43
11.20
5.26
9.57
12.40
7.68
8.13
7.46
8.41
9.49
9.76
7.64
7.73
8.94
9.27
3.73
14.00
11.00
5.43
12.62
8.34
12.70
7.11
9.34
8.96
9.03
Separation
—
26.3 +
PA
—
202 -
5.6 +
—
12.6 26.2
—
132 —
3.9 +
30.8 +
—
7.8 +
11.6
—
5.0 —
19.9 78 —
0.6 —
0.6 —
1.5 —
0.4 —
1.4 +
—
25.4 +
54 +
—
75.5 +
—
7.0 —
1.4 +
—
1.4 +
342 —
293 +
26.2
—
265 =
—
50 +
30.8 +
—
341 +
11.6
—
170 —
299 +!
78 —
59 -!
—
203 +
—
146 +
—
82 -!!
—
208 +
—
299 54 +
—
81 —
85 —
227 —
56 +
Zone 172
Deep Space
Object
NGC 6572
NGC 6633
IC 4756
PK 38+12.1
NGC 6709
NGC 6525
UGC 11093
MCG +01-48-001
Graff 1
Position
1812+0651
1828+0634
1839+0527
1818+1009
1852+1021
1802+1102
1802+0658
1849+0526
1835+0510
Rating
2E
2E
2E
3E
3E
4E
3M
4M
5D
Map
2
2
4
2
3
1
2
4
4
Type
Pn (2a)
Oc (III 2m)
Oc (III 2m)
Pn (2)
Oc (IV 2m)
Oc
Gal (Sc)
Gal
Oc
- 52 -
Specifications
Surface
Mag
Br
9.0
4.6
8.0
13.5
7.9
8.0
11.0
13.0
13.3
11.0
13.0
Population
65
80
40