Zone 28, Master Map
+75°00'
Normal View
Urs
STF 2302
STF 2575
+74°00'
P Muller 222
NGC 6643
NGC 6786
NGC 6654A
26-1
χ
+72°00'
H I 41
NGC 6654
Chi Dra
ψ1
OS 369
+71°00'
ψ2
NGC 6651
φ Phi Dra
υ
NGC 6503
26-2
+69°00'
STF 2478
STF 2366 rej
STF 2307
+68°00'
STF 2370
NGC 6621
Delta Dra
δ Altais
Bird 3
STF 2384
Milburn 289
26-3
26-4
NGC 6543
+65°00'
STF 2284
Kuiper 86
STF 2423
STF 2343
STF 2332 rej
Hussey 938
OS 586
Espin 1840
Espin 126
19h 00m
18h 48m
18h 36m
+67°00'
NGC 6667
+66°00'
τ
+73°00'
STF 2452
+70°00'
Zone Master, Norm al View, 10 deg FOV
STF 2357
18h 24m
Comstock 4
Hussey 926
Espin 186
18h 12m
STF 2273
18h 00m
Zone 28, Map 1
Normal Image
+77°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+76°00'
P Muller 209
STF 2452
+75°00'
STF 2302
+74°00'
NGC 6643
+73°00'
NGC 6654A
NGC 6654
Chi Dra
ψ2
+72°00'
χ
STF 2370
18h 48m
18h 36m
Phi Dra
+70°00'
φ
+71°00'
NGC 6651
υ
STF 2366 rej
18h 24m
STF 2307
18h 12m
18h 00m
Zone 28, Map 1
Mirror Image
+77°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+76°00'
P Muller 209
STF 2452
+75°00'
STF 2302
+74°00'
NGC 6643
+73°00'
NGC 6654A
NGC 6654
Chi Dra
+72°00'
χ
ψ2
υ
Phi Dra
+70°00'
φ
NGC 6503
STF 2370
STF 2366 rej
18h 00m
STF 2307
18h 12m
18h 24m
18h 36m
+71°00'
NGC 6651
18h 48m
Zone 28, Map 2
Normal Image
+74°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+73°00'
NGC 6654A
NGC 6654
Chi Dra
ψ1
ψ2
+70°00'
STF 2366 rej
+69°00'
STF 2370
Phi Dra
+68°00'
STF 2307
NGC 6621
NGC 6667
STF 2384
Bird 3
NGC 6543
18h 36m
18h 24m
18h 12m
STF 2284
18h 00m
+67°00'
φ
+71°00'
NGC 6651
υ
18h 48m
+72°00'
χ
Zone 28, Map 2
Mirror Image
+74°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+73°00'
NGC 6654A
NGC 6654
H I 41
Chi Dra
Psi 1 Dra
ψ2
NGC 6651
NGC 6503
+69°00'
STF 2370
STF 2366 rej
+70°00'
υ
Phi Dra
STF 2307
+68°00'
NGC 6621
NGC 6667
STF 2384
Bird 3
+67°00'
φ
+71°00'
+72°00'
χ
NGC 6543
STF 2284
18h 00m
18h 12m
18h 24m
18h 36m
18h 48m
Zone 28, Map 3
Normal Image
+70°00'
+71°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 6503
STF 2370
+69°00'
STF 2366 rej
STF 2307
ω
+68°00'
NGC 6621
+67°00'
NGC 6667
Bird 3
+66°00'
NGC 6543
STF 2284
+65°00'
Kuiper 86
STF 2343
STF 2332 rej
OS 586
Hussey 926
STF 2273
Kruger 47
Espin 186
STF 2357
STF 2334 rej
18h 24m
18h 12m
18h 00m
17h 48m
+64°00'
Comstock 4
Zone 28, Map 3
Mirror Image
+69°00'
STF 2370
STF 2366 rej
+70°00'
NGC 6503
+71°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2307
NGC 6621
NGC 6667
+67°00'
STF 2207
+68°00'
ω
Bird 3
STF 2284
Espin 1910
STF 2332 rej
+65°00'
+66°00'
NGC 6543
Comstock 4
STF 2273
OS 586
Hussey 926
Espin 186
+64°00'
Kruger 47
STF 2218
17h 48m
18h 00m
18h 12m
18h 24m
Zone 28, Map 4
Normal Image
STF 2370
+70°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2307
NGC 6621
+67°00'
NGC 6667
+68°00'
STF 2478
+69°00'
STF 2366 rej
STF 2423
+65°00'
+66°00'
STF 2384
Kuiper 86
STF 2343
STF 2332 rej
OS 586
Espin 186
Espin 1840
STF 2377 rej
STF 2357
STF 2365 rej
STF 2334 rej
+63°00'
Espin 126
+64°00'
Hussey 938
STF 2440
19h 00m
Espin 2669
18h 48m
18h 36m
18h 24m
18h 12m
Zone 28, Map 4
Mirror Image
+70°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2370
STF 2366 rej
+69°00'
STF 2478
STF 2307
+68°00'
NGC 6621
+67°00'
NGC 6667
Kuiper 86
Comstock 4
STF 2343
STF 2332 rej
+65°00'
+66°00'
STF 2384
STF 2423
OS 586
Hussey 938
+64°00'
Hussey 926
Espin 1840
Espin 186
Espin 126
STF 2365 rej
STF 2377 rej
+63°00'
STF 2357
STF 2334 rej
18h 12m
18h 24m
18h 36m
18h 48m
Espin 2669
19h 00m
Zone 28
Index
10 Double Stars, 6 Galaxies
C
P
Chi Dra ....................................................... 2
Phi Dra ....................................................... 6
K
S
Kuiper 86 ................................................... 9
STF 2284 ................................................... 9
STF 2307 ................................................... 5
STF 2343 ................................................. 10
STF 2366 rej.............................................. 4
STF 2370 ................................................... 5
STF 2384 ................................................... 7
STF 2423 ................................................. 10
N
NGC 6621.................................................. 8
NGC 6643.................................................. 3
NGC 6651.................................................. 6
NGC 6654.................................................. 3
NGC 6654A .............................................. 4
NGC 6667................................................ 11
-1-
Zone 28
Zone 28, Map 1
Double Stars
Difficult
Chi Dra
Other name(s): Bpm 182; HD 170153; SAO 9087
Rating: 5 D
Position: 1821+7244
A
B
C
Magnitude
3.57
11.80
13.30
Separation
—
149.2 +
10.2
PA
—
19 302
Year
—
1908
1908
Notes:
AB 1973. 144.6 @ 27. 2 measurements.
AC 1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.90 inches.
Separation: AB = 6.05 miles; AC = 2,165 feet.
Distance (LY): 26
Total luminosity (Suns): 1.92
-2-
Spectra
F7 V
Colors
W
?
?
Zone 28
Deep Sky Objects
Moderate
NGC 6654
Other Names: UGC 11238
Rating: 4 M
Position: 1824+7311
Type : Gal
Surface brightness: 13.7
Class: (R')SB(s)0/a
Dimensions: 2.6' x 2.1'
Magnitude : 12.0
PA: 10
Observations:
C11 at 140x. It is a fairly bright patch with a very slightly brighter middle just E of a
N-S line of three 10m stars.
Radial velocity (km/sec): +1,821
Difficult
NGC 6643
Other Names: UGC 11218
Rating: 5 D
Position: 1820+7434
Type : Gal
Surface brightness: 13.0
Class: SA(rs)c II
Dimensions: 3' x 1'
Magnitude : 12.0
PA: 38
Observations:
C8 at 104x. Indistinct and with a NE/SW axis. Note the three 11.5m stars off the W
edge. They form a N-S line.
Radial velocity (km/sec): +1,748
-3-
Zone 28
NGC 6654A
Other Names: UGC 11332
Rating: 5 D
Position: 1839+7335
Type : Gal
Surface brightness: 13.5
Class: SBd pec
Dimensions: 2.7' x 0.8'
Magnitude : 12.9
PA: 63
Observations:
C11 at 98x. I noted a very faint oval smudge just E of a 13m triangle of stars. No
brightening toward the center.
Zone 28, Map 2
Double Stars
Easy
STF 2366 rej
Other name(s): HD 172130; SAO 17925
Rating: 4 E
Position: 1832+6957
A
B
Magnitude
8.50
11.25
Separation PA
—
—
29.8 +
333 -
Year
—
1991
Spectra
A0
Colors
W
Y
Notes:
1897: 29.3 @ 334. 4 measurements.
Hipparcos/Tycho data show different distances for these stars; they may be optical.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.31 inches.
Separation: AB = 51.2 miles.
-4-
Zone 28
Distance (LY): 1,100
Total luminosity (Suns): 41
STF 2370
Other name(s): ADS 11495; SAO 9160
Rating: 2 E
Position: 1834+7003
A
B
Magnitude
10.58
10.59
Separation PA
—
—
10.6 =
135 -
Year
—
1991
Spectra
G
Colors
W
W
Notes:
1832: 10.6 @ 136. 12 measurements.
Observations:
C11 at 115x. Very nice field.
Moderate
STF 2307
Other name(s): ADS 11178; HD 167855; SAO 17810
Rating: 2 M
Position: 1811+6915
A
B
Magnitude
8.33
8.37
Separation PA
—
—
4.3 =
206 +
Year
—
1998
Notes:
1832: 4.3 @ 205. 25 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.2 inches; B = 24.9 inches.
Separation: AB = 3.19 miles.
-5-
Spectra
G0
K0
Colors
bW
bW
Zone 28
Distance (LY): 476
Total luminosity (Suns): 13
Difficult
Phi Dra
Other name(s): OS 353; ADS 11311; HD 170000; SAO 9084
Rating: 5 D
Position: 1821+7120
A
B
C
Magnitude
4.21
5.67
12.70
Separation
—
0.4 71.8 +
PA
—
271 +!!
116 +
Year
—
1998
1962
Spectra
A0pSi:
Colors
W
No
?
Notes:
AB 1843: 0.6 @ 69. 75 measurements.
AC 1912: 70.8 @ 115. 2 measurements.
A premature orbit for AB has been computed. Yet, this system may be optical as the
stars appear to be at different distances (289 and 172 light years) and have different
proper motions.
A is an Alpha CVn-type variable and spectroscopic binary.
Observations:
C11 at 115x. B was not detected even at 634x. There was elongation of the image,
however.
Deep Sky Objects
Difficult
NGC 6651
Other Names: UGC 11236
Rating: 4 D
Position: 1824+7136
Type : Gal
Surface brightness: 13.1
Class: SA(r)c
Dimensions: 1.6' x 0.7'
-6-
Magnitude : 13.1
PA: 30
Zone 28
Observations:
C11 at 140x. Faint ellipse with a very slightly brighter middle. It lies 11 min E of a
7.5m star.
Radial velocity (km/sec): +5,768
Zone 28, Map 3
Double Stars
Easy
STF 2384
Other name(s): ADS 11568; HD 173084; SAO 17964
Rating: 3 E
Position: 1838+6707
A
B
C
Magnitude
7.70
8.34
12.50
Separation
—
0.2 -!
113.5
PA
—
17 +!
167
Year
—
1993
1910
Spectra
G5
Colors
Y
No
?
Notes:
AB 1832: 0.8 @ 307. Over 100 measurements. The orbit takes 133.5 years with a
semi-major axis of 0.615" and direct motion in a highly-inclined orbit.
AC 1 measurement.
Observations:
C8 at 516x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.0 inches.
Separation: AB = 264 feet; AC = 30.3 miles.
Distance (LY): 171
Total luminosity (Suns): 1.92
-7-
Zone 28
Deep Sky Objects
Difficult
NGC 6621
Other Names: UGC 11175
Rating: 5 D
Position: 1813+6822
Type : Gal
Dimensions: 1.3' x 0.8'
Class: SB/p
PA: 145
Magnitude : 13.5
Observations:
C11 at 140x. Extremely faint, only verified with tube movement. No nucleus seen.
Three stars to the N form a dogleg.
Radial velocity (km/sec): +6,191. (Each second, the expansion of space takes this
galaxy farther from earth than the distance from New York City to Los Angeles!)
-8-
Zone 28
Zone 28, Map 4
Double Stars
Easy
Kuiper 86
Other name(s): HD 171653; SAO 17912
Rating: 5 E
Position: 1831+6526
A
B
Magnitude
6.60
10.42
Separation PA
—
—
24.9 40 +
Year
—
1985
Spectra
A8m
Colors
W
W
Notes:
1958: 26.6 @ 36. 2 measurements.
Star A is a spectroscopic binary.
Hipparcos/Tycho mission data show different distances for these stars (443 and 95
light years); they may be optical.
Observations:
C8 at 104x.
Moderate
STF 2284
Other name(s): ADS 11016; HD 165522; SAO 17729
Rating: 4 M
Position: 1801+6557
A
B
Magnitude
7.72
9.46
Separation PA
—
—
3.6 193 -
Notes:
1832: 3.7 @ 194. 25 measurements.
Observations:
C8 at 206x. Webb saw them as Y and W.
-9-
Year
—
1997
Spectra
F5 IV
Colors
W
O
Zone 28
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.33 inches.
Separation: AB = 4.15 miles.
Distance (LY): 740
Total luminosity (Suns): 47
STF 2343
Other name(s): Hussey 931 (B); ADS 11407
Rating: 5 M
Position: 1829+6506
A
B
C
Magnitude
9.86
10.40
10.77
Separation
—
0.5 8.4 -
PA
—
74 +
212 -
Year
—
1981
1991
Spectra
G0
Colors
W
No
W
Notes:
AB 1905: 0.7 @ 248. 7 measurements.
AC 1832: 8.6 @ 216. 11 measurements. This system may be optical as Hipparcos
shows different distances (8,150 and 41 light years).
Observations:
C11 at 115x.
STF 2423
Other name(s): ADS 11795; SAO 18050
Rating: 3 M
Position: 1851+6514
A
B
Magnitude
9.60
10.33
Separation PA
—
—
2.2 =
197 -
Year
—
1991
Spectra
F5
Colors
W
Y
Notes:
1832: 2.2 @ 203. 15 measurements. This system may be optical as Hipparcos shows
different distances (2,760 and 225 light years).
- 10 -
Zone 28
Observations:
C11 at 339x.
Deep Sky Objects
Difficult
NGC 6667
Other Names: NGC 6668
Rating: 4 D
Position: 1831+6759
Type : Gal
Surface brightness: 13.5
Class: SABab? pec
Dimensions: 2.4' x 1.1'
Magnitude : 12.6
PA: 105
Observations:
C11 at 140x. Either a 12.5m star sits on the line of sight or it has a stellar nucleus;
very faint halo, made difficult to see by this star.
Radial velocity (km/sec): +2,582
- 11 -
Zone 28
Zone 28 Mini-Catalog
Double Stars
Star
Designation
Position
Rating
Map
STF 2370
1834+7003
2E
2
STF 2384
1838+6707
3E
3
STF 2366 rej
1832+6957
4E
2
Kuiper 86
1831+6526
5E
4
STF 2307
1811+6915
2M
2
STF 2423
1851+6514
3M
4
STF 2284
1801+6557
4M
4
STF 2343
1829+6506
5M
4
Chi Dra
1821+7244
5D
1
Phi Dra
1821+7120
5D
2
Component
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
C
A
B
C
Specifications
Mag
Sep from A
10.58
—
10.59
10.6 =
7.70
—
8.34
0.2 -!
12.50
113.5
8.50
—
11.25
29.8 +
6.60
—
10.42
24.9 8.33
—
8.37
4.3 =
9.60
—
10.33
2.2 =
7.72
—
9.46
3.6 9.86
—
10.40
0.5 10.77
8.4 3.57
—
11.80
149.2 +
13.30
10.2
4.21
—
5.67
0.4 12.70
71.8 +
PA from A
—
135 —
17 +!
113.5
—
333 —
40 +
—
206 +
—
197 —
193 —
74 +
8.4 —
19 10.2
—
271 +!!
71.8 +
Deep Sky Objects
Object
NGC 6654
NGC 6651
NGC 6667
NGC 6621
NGC 6643
NGC 6654A
Position
1824+7311
1824+7136
1831+6759
1813+6822
1820+7434
1839+7335
Rating
4M
4D
4D
5D
5D
5D
Map
1
2
4
3
1
1
Specifications
Surface
Br
Type
Mag
Gal ((R')SB(s)0/a)
12.0
13.7
Gal (SA(r)c)
13.1
13.1
Gal (SABab? Pec) 12.6
13.5
Gal (SB/p)
13.5
Gal (SA(rs)c II)
12.0
13.0
Gal (SBd pec)
12.9
13.5
- 12 -
Population