Zone 151, Master Map
Normal View
Zone Master, Normal View, 10 deg FOV
+24°00'
κ
Vulpecula
Pegasus
c
d
+16°00'
f
+18°00'
Delphinus
+20°00'
+22°00'
e
22h 00m
21h 52m
21h 44m
21h 36m
21h 28m
21h 20m
21h 12m
21h 04m
20h 56m
Zone 151, Map 1
Normal Image
+25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2761
Vulpecula
+24°00'
h1641
PK 72-17.1
Couteau 132
Pegasus
+23°00'
2 Peg
NGC 7053
STF 2769
+22°00'
h1647
+21°00'
Bur 69
A. G. 269
STF 2767
1 Peg
21h 30m
21h 25m
21h 20m
Delphinus
21h 15m
21h 10m
21h 05m
21h 00m
Zone 151, Map 1
Mirror Image
+25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2761
Vulpe
+24°00'
h1641
PK 72-17.1
Couteau 132
2 Peg
+23°00'
Pegasus
NGC 7053
h1647
+22°00'
STF 2769
+21°00'
Bur 69
A. G. 269
STF 2739
STF 2767
1 Peg
Delphinus
21h 00m
21h 05m
21h 10m
21h 15m
21h 20m
21h 25m
21h 30m
Zone 151, Map 2
Normal Image
+20°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2767
1 Peg
Pegasus
Delphinus
+19°00'
Bur 1497
NGC 7003
+18°00'
NGC 7056
+17°00'
STF 2763
h281
OSS 213
NGC 7025
+16°00'
NGC 7006
Hough 284
A. G. 416
h275
A. G. 417
h284
21h 30m
21h 25m
21h 20m
21h 15m
21h 10m
21h 05m
21h 00m
Zone 151, Map 2
Mirror Image
+20°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2739
STF 2767
1 Peg
Delphinus
Pegasus
+19°00'
Bur 1497
+18°00'
NGC 7056 NGC 7056
NGC 7003
+17°00'
STF 2763
OSS 213
h281
OSS 213
STF 2738
NGC 7025
NGC 7025
NGC 7006
+16°00'
NGC 7006
Hough 284
A. G. 416
OS 424
h275
A. G. 417
21h 00m
21h 05m
21h 10m
21h 15m
21h 20m
21h 25m
21h 30m
Zone 151, Map 3
Normal Image
+25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Pourteau 5454
Pourteau 5414
OS 454
+24°00'
Vulpecul
2 Peg
h1668
Jonckheere 2361
Hough 467
NGC 7137
+22°00'
+23°00'
A. G. 274
Hough 465
+21°00'
A. G. 276
A. G. 277
STF 2804
OS 444
STF 2849
Aller 4
STF 2841
22h 00m
21h 55m
h947
21h 50m
21h 45m
21h 40m
21h 35m
21h 30m
Zone 151, Map 3
Mirror Image
+25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Pourteau 5454
Pourteau 5414
OS 454
+24°00'
Vulpecula
2 Peg
h1668
+23°00'
A. G. 274
NGC 7137
Hough 465
Hough 467
Jonckheere 2361
+22°00'
h1647
+21°00'
A. G. 276
A. G. 277
STF 2804
OS 444
STF 2849
h947
21h 30m
21h 35m
21h 40m
21h 45m
21h 50m
Aller 4
STF 2841
21h 55m
22h 00m
Zone 151, Map 4
Normal Image
Aller 4
STF 2841
+20°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h947
+19°00'
STF 2834
+18°00'
STF 2818
+16°00'
+17°00'
NGC 7177
OS 455
OSS 224
h284
22h 00m
21h 55m
21h 50m
21h 45m
21h 40m
21h 35m
21h 30m
Zone 151, Map 4
Mirror Image
h947
+20°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Aller 4
STF 2841
+19°00'
STF 2834
+16°00'
+17°00'
+18°00'
STF 2818
OS 455
OSS 224
h284
21h 30m
21h 35m
21h 40m
21h 45m
21h 50m
21h 55m
22h 00m
Zone 151
40 Double Stars, 1 Planetary Nebula,
1 Globular Cluster, 5 Galaxies
Flamsteed
N
1 Peg ...................................................... 8
2 Peg ...................................................... 6
NGC 7003 ............................................ 14
NGC 7006 ............................................ 13
NGC 7025 ............................................ 14
NGC 7053 .............................................. 7
NGC 7056 ............................................ 14
NGC 7137 ............................................ 22
A
A. G. 269 ............................................... 3
A. G. 274 ............................................. 15
A. G. 276 ............................................. 20
A. G. 277 ............................................. 15
A. G. 416 ............................................. 11
A. G. 417 ............................................. 11
Aller 4 .................................................. 25
O
OS 444 ................................................. 16
OS 454 ................................................. 19
OS 455 ................................................. 25
OSS 213 ............................................... 12
OSS 224 ............................................... 24
B
Bur 1497 ................................................ 9
Bur 69 .................................................... 2
P
Couteau 132........................................... 4
PK 72-17.1 ............................................. 7
Pourteau 5414 ...................................... 17
Pourteau 5454 ...................................... 21
H
S
h1641 ..................................................... 6
h1647 ..................................................... 5
h1668 ................................................... 16
h275 ....................................................... 9
h281 ..................................................... 10
h284 ..................................................... 26
h947 ..................................................... 26
Hough 284 ............................................. 9
Hough 465 ........................................... 17
Hough 467 ........................................... 18
STF 2739................................................ 5
STF 2761................................................ 4
STF 2763.............................................. 10
STF 2767.............................................. 12
STF 2769................................................ 2
STF 2804.............................................. 18
STF 2818.............................................. 23
STF 2834.............................................. 24
STF 2841.............................................. 22
STF 2849.............................................. 20
C
J
Jonckheere 2361 .................................. 19
-1-
Zone 151
Zone 151, Map 1
Double Stars
Easy
Bur 69
Hough 599; ADS 14570; HD 200392; SAO 89397
Position: 2103+2141
A
B
C
Magnitude
8.06
9.42
7.92
Separation
—
0.5 75.1 -
PA
—
348 +
240 +?
Rating: 4 D
Year
—
1995
1991
Spectra
F0
K0
Colors
W
?
W
Notes:
AB 1875: 1.0 @ 315. 50 measurements.
AC 1875: 78.4 @ 58. 16 measurements. Quadrant reversal?
C exhibits a different proper motion from A as well as a different distance (483 light
years).
Observations:
C8 at 104x. Star B was not seen even at 516x..
Extremely rich and bright field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.5 inches; C = 24.2 inches.
Separation: AB = 1,056 feet; AC = 30.7 miles.
Distance (LY): 262
Total luminosity (Suns): 8.3
STF 2769
Rating: 2 E
ADS 14710; HD 201671; SAO 89505
Position: 2111+2227
A
B
Magnitude
6.71
7.70
Separation PA
—
—
18.2 +
301 =
-2-
Year
—
1997
Spectra
A1 V
A4 V
Colors
W
B
Zone 151
Notes:
1830: 17.8 @ 301. 52 measurements. Star A is a spectroscopic binary.
Hipparcos/Tycho data show different distances for these stars; they may be optical.
However, the stars exhibit common proper motion.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.70 inches; B = 7.80 inches.
Separation: AB = 56.8 miles.
Distance (LY): 2,000
Total luminosity (Suns): 970
A. G. 269
Rating: 4 E
ADS 14604; HD 200724
Position: 2105+2052
A
B
Magnitude
8.34
10.29
Separation PA
—
—
4.9 -! 176 +
Year
—
1994
Spectra
K0
Colors
Y
W
Notes:
1894: 8.6 @ 174. 8 measurements. The stars have different proper motions.
Observations:
C8 at 104x. Two 8.5m stars complete a nice isosceles triangle, of which this pair is
the N vertex.
Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.8 inches.
Separation: AB = 2.65 miles.
Distance (LY): 347
Total luminosity (Suns): 5.22
-3-
Zone 151
STF 2761
Rating: 4 E
ADS 14658; SAO 89470
Position: 2108+2428
A
B
Magnitude
8.92
9.67
Separation PA
—
—
5.6 +
111 -
Year
—
1991
Spectra
A2
Colors
W
W
Notes:
1831: 5.4 @ 112. 33 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.46 inches.
Separation: AB = 11.4 miles.
Distance (LY): 1,300
Total luminosity (Suns): 71
Couteau 132
Rating: 4 E
SAO 89651
Position: 2122+2349
A
B
Magnitude
7.68
10.26
Separation PA
—
—
13.2 +
201 -
Year
—
1997
Spectra
A3
Colors
W
O
Notes:
1891: 13.1 @ 203. 5 measurements.
May be optical because Hipparcos gives different distances (1,240 and 860 light
years).
Observations:
C8 at 104x.
-4-
Zone 151
h1647
Rating: 4 E
HD 204585; SAO 89737
Position: 2129+2210
A
B
C
Magnitude
5.84
10.16
12.00
Separation
—
41.1 +
40.3 -
PA
—
177 =
129 +
Year
—
1996
1966
Spectra
M3 III
Colors
O!
B
?
Notes:
AB 1892: 41.0 @ 177. 16 measurements.
AC 1892: 41.2 @ 126. 9 measurements.
The primary is an infra-red source.
May be optical because Hipparcos gives different distances (600 and 910 light years).
However, the stars exhibit common proper motion.
Observations:
C8 at 83x.
Moderate
STF 2739
Rating: 3 M
ADS 14515; SAO 106739
Position: 2100+2004
A
B
Magnitude
8.60
9.17
Separation PA
—
—
3.3 +
253 +
Year
—
1997
Notes:
1831: 3.2 @ 252. 26 measurements.
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches.
Separation: AB = 2.98 miles.
Distance (LY): 580
Total luminosity (Suns): 15
-5-
Spectra
F0
Colors
W
W
Zone 151
h1641
Rating: 4 M
HD 203803; SAO 89678
Position: 2124+2416
A
B
Magnitude
5.71
12.26
Separation PA
—
—
53.9 +
309 -
Year
—
1923
Spectra
F0 IV
Colors
W
W
Notes:
1902: 51.8 @ 313. 4 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches.
Separation: AB = 15.2 miles.
Distance (LY): 181
Total luminosity (Suns): 13.63
2 Peg
Bur 685; ADS 15027; HD 204724; SAO 89752
Position: 2130+2338
A
B
Magnitude
4.51
11.60
Separation PA
—
—
29.9 +
331 -
Rating: 4 M
Year
—
1934
Spectra
K5 III
Notes:
1878: 29.8 @ 334. 6 measurements. The primary is an infra-red source.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.43 inches.
Separation: AB = 20.7 miles.
Distance (LY): 443
Total luminosity (Suns): 226.35
-6-
Colors
Y!!
?
Zone 151
Deep Sky Objects
Moderate
NGC 7053
Other Names: UGC 11727
Rating: 5 M
Position: 2121+2305
Type: Gal
Dimensions: 1.4' x 1.3'
Magnitude: 13.0
Surface brightness: 13.5
Notes:
This galaxy produced supernova 2003ep (type Ia).
Observations:
C11 at 193x. Bright middle, but with rapid fade-off. About 20" in diameter.
Radial velocity (km/sec): +4,708
Difficult
PK 72-17.1
Rating: 5 D
Position: 2117+2410
Type: Pn
Dimensions: 14'
Class: 2
Magnitude: 12.2
Observations:
C11 at 115x with the O-III filter. It is huge! Takes up half the field at this low power.
Very, very faint and splotchy in appearance. Five or six faint stars are superimposed (or
behind it).
Model (where the Sun is a baseball):
Its diameter would be 3,212 miles.
Distance (LY): 2,450
Luminosity (suns): 6
-7-
Zone 151
Zone 151, Map 2
Double Stars
Easy
1 Peg
SI 11; ADS 14909; HD 203504; SAO 107073
Position: 2122+1948
A
B
C
Magnitude
4.08
9.58
12.42
Separation
—
34.6 74.3 -
Rating: 1 E
PA
—
312 +
19 -
Year
—
1993
1921
Spectra
K1 III
K0
Colors
Y!
dR!
?
Notes:
AB 1835: 36.9 @ 311. 49 measurements. Star B is a spectroscopic binary with a
period of 1,111 days. The primary is an infra-red source. The stars share common
proper motion.
AC 1912: 75.7 @ 20. 2 measurements.
Observations:
C8 at 65x. The C star was extraordinarily
difficult! Webb saw them as Y! and ? or O
and B. Tim Leese (Cheshire, UK) used a
20cm f/6 Newt and a MicroGuide at 324x
and measured 36.8" in PA 312 on Sept 18,
2000.
C11 at 115x. I saw them this time around
as D!, B and W (but very, very difficult).
Very rich field.
1 Peg
Observed with C8
on 9/23/95; s7, t8
Magnification: 104x
Scale model (in which the Sun is the size of a
baseball):
Diameter: A = 2.40 inches; B = 26.6 inches.
Separation: AB = 8.31 miles; AC = 17.9
miles.
Distance (LY): 154
Total luminosity (Suns): 44.032
-8-
Zone 151
Hough 284
Rating: 3 E
ADS 14797
Position: 2116+1600
A
B
Magnitude
9.10
10.10
Separation PA
—
—
3.8 +
86 -
Year
—
1999
Spectra
F8
Colors
W
yW
Notes:
1886: 3.7 @ 88. 23 measurements.
Observations:
C11 at 115x.
Bur 1497
Rating: 4 E
HD 200044; SAO 106747
Position: 2101+1920
A
B
Magnitude
5.65
9.82
Separation PA
—
—
49 +
336 +
Year
—
1988
Spectra
M3 IIIab
Colors
rO
W?
Notes:
1880: 44.7 @ 333. 7 measurements.
May be optical because Hipparcos gives different distances (600 and 48 light years).
Observations:
C11 at 115x.
h275
Rating: 4 E
SAO 106849
Position: 2107+1524
A
B
Magnitude
7.09
10.13
Separation PA
—
—
23.4 352 -
Notes:
1905: 23.9 @ 353. 3 measurements.
-9-
Year
—
1991
Spectra
F5
Colors
W
O
Zone 151
Observations:
C8 at 104x.
STF 2763
Rating: 4 E
HD 201479; SAO 106879
Position: 2109+1720
A
B
C
BC
Magnitude
9.70
10.40
11.00
Separation PA
—
—
17.1 +
293 35.6
47
Year
—
1991
Spectra
F8
Colors
W
B
No
1879
Notes:
AB 1829: 16.8 @ 294. 24 measurements. The stars share common proper motion.
BC 1 measurement.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.5 inches.
Separation: AB = 1.04 miles; BC = 2.16 miles.
Distance (LY): 39
Total luminosity (Suns): 0.03
h281
Rating: 4 E
ADS 14891; SAO 107060
Position: 2121+1645
A
B
Magnitude
9.72
11.25
Separation PA
—
—
14.0 =
335 =
Notes:
1829: 14.0 @ 335. 20 measurements.
Observations:
C11 at 115x.
- 10 -
Year
—
1991
Spectra
G0
Colors
W
W?
Zone 151
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.6 inches.
Separation: AB = 28.4 miles.
Distance (LY): 1,300
Total luminosity (Suns): 21
A. G. 416
Rating: 4 E
HD 203234
Position: 2121+1537
A
B
Magnitude
9.44
10.24
Separation PA
—
—
24.2 19 -
Year
—
1903
Spectra
G5
Colors
yW
W
Notes:
1893: 24.6 @ 20. 2 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.1 inches.
Separation: AB = 5.74 miles.
Distance (LY): 152
Total luminosity (Suns): 0.45
A. G. 417
Rating: 4 E
HD 203402; SAO 107066
Position: 2122+1513
A
B
Magnitude
8.84
10.56
Separation PA
—
—
29.2 =
4=
Notes:
1893: 29.2 @ 4. 2 measurements.
Observations:
C8 at 104x. A nice flat triangle lies 5 min NW.
- 11 -
Year
—
1903
Spectra
K0
Colors
Y
W
Zone 151
OSS 213
Rating: 5 E
HD 199941; SAO 106738
Position: 2100+1649
A
B
Magnitude
6.62
9.17
Separation PA
—
—
70.6 37 =
Year
—
1993
Spectra
F4 III
Colors
W
W
Notes:
1875: 70.9 @ 37. 16 measurements.
The stars share common proper motion and the same distance.
Observations:
C8 at 104x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 26.4 inches.
Separation: AB = 17.2 miles.
Distance (LY): 156
Total luminosity (Suns): 4.8
Moderate
STF 2767
Rating: 3 M
ADS 14708; HD 201672; SAO 106894
Position: 2111+1957
A
B
Magnitude
8.22
8.59
Separation PA
—
—
2.4 28 -
Notes:
1830: 2.5 @ 31. 84 measurements.
Observations:
C8 at 206x.
C11 at 560x. Not a lot to report.
- 12 -
Year
—
1997
Spectra
F5 V
F5
Colors
W
W
Zone 151
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches; B = 13.5 inches.
Separation: AB = 2.05 miles.
Distance (LY): 550
Total luminosity (Suns): 30
Deep Sky Objects
Moderate
NGC 7006
Rating: 3 M
Other Names: H I 52
Astronomical League Program: Caldwell Club, Herschel 400 Club
Position: 2102+1611
Type: Gc
Dimensions: 2.8'
Class: 1
Magnitude: 11.5
Notes:
This is an extragalactic globular 120 light years in diameter. It is 150,000 light years
from the galaxy's center, making it a "cousin" of the Intergalactic Tramp in Camelopardalis.
The brightest stars are 15.6m and the horizontal branch is 18.8m.
Observations:
C8 at 65x. It is faint; use high powers. It looks a little like a planetary nebula. Rich
field.
C11 at 98x. Small, rapidbly brighter middle, not resolved. Rich but dim field.
C11 at 98x. Class: 3. Very faint and unresolved, with a very gradual brightening to
the middle. Rich field.
Model (where the Sun is a baseball):
Its diameter would be 48,500 miles.
Distance (LY): 185,000
Luminosity (suns): 81,000
- 13 -
Zone 151
Difficult
NGC 7003
Other Names: UGC 11662
Rating: 5 D
Position: 2101+1748
Type: Gal
Surface brightness: 12.3
Class: Sbc
Dimensions: 1.1' x 0.7'
Magnitude: 13.0
PA: 120
Observations:
C8 at 104x. Noticed with averted vision and tube movement. It is extremely faint.
Radial velocity (km/sec): +5,304
NGC 7025
Other Names: UGC 11681
Rating: 5 D
Position: 2108+1620
Type: Gal
Surface brightness: 13.8
Class: Sa
Dimensions: 2.3' x 1.5'
Magnitude: 12.8
PA: 33
Observations:
C8 at 206x. All I could make out was the faint nucleus. There is a wonderful
asterism to the immediate west!
Radial velocity (km/sec): +4,968
NGC 7056
Other Names: IC 1382; UGC 11734
Rating: 5 D
Position: 2122+1839
Type: Gal
Surface brightness: 12.6
Class: SBb
Dimensions: 1.0' x 1.0'
Magnitude: 12.9
Observations:
C8 at 104x. It showed a very faint stellar nucleus and no discernible halo.
- 14 -
Zone 151
Radial velocity (km/sec): +5,376
Zone 151, Map 3
Double Stars
Easy
A. G. 274
Rating: 3 E
ADS 15183
Position: 2140+2322
A
B
C
Magnitude
9.52
10.28
11.33
Separation
—
9.2 +
62
PA
—
153 =
158
Year
—
1929
1912
Spectra
F8
Colors
W
B
W
Notes:
AB 1902: 8.9 @ 153. 5 measurements.
AC 1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.3 inches.
Separation: AB = 26.0 miles; AC = 175 miles.
Distance (LY): 1,810
Total luminosity (Suns): 68
A. G. 277
Rating: 3 E
ADS 15304
Position: 2146+2111
A
B
Magnitude
9.89
9.99
Separation PA
—
—
2.6 +
59 +
- 15 -
Year
—
1999
Spectra
G5
Colors
yW
W
Zone 151
Notes:
1901: 2.5 @ 54. 26 measurements.
Observations:
C11 at 115x!
h1668
Rating: 4 E
ADS 15143; HD 205823; SAO 89850
Position: 2137+2339
A
B
Magnitude
8.94
10.35
Separation PA
—
—
8.4 =
37 +
Year
—
1995
Spectra
F8
Colors
W
dO
Notes:
1891: 8.4 @ 35. 9 measurements.
Observations:
C8 at 104x.
OS 444
Rating: 4 E
ADS 15171; HD 206056; SAO 89872
Position: 2139+2036
A
B
Magnitude
7.99
11.06
Separation PA
—
—
8.0 =
277 +
Year
—
1991
Notes:
1850: 8.0 @ 274. 15 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 = 13.0 inches.
Separation: AB = 8.36 miles.
Distance (LY): 670
Total luminosity (Suns): 21
- 16 -
Spectra
F5
Colors
W
?
Zone 151
Hough 465
Rating: 4 E
ADS 15311; HD 207147; SAO 89978
Position: 2146+2210
A
B
C
BC
Magnitude
7.06
10.57
10.90
Separation PA
—
—
42.8 +
246 =
4.7 +
79 -
Year
—
1924
Spectra
A2 IV
Colors
W
V
?
1923
Notes:
AB 1893: 42.2 @ 246. 7 measurements.
BC 1893: 3.6 @ 80. 3 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches.
Separation: AB = 39.4 miles; BC = 4.33 miles.
Distance (LY): 590
Total luminosity (Suns): 47
Pourteau 5414
Position: 2135+2443
A
B
Magnitude
10.59
10.88
Rating: 5 E
Separation PA
—
—
24.8 +
128 +
Notes:
1891: 24.0 @ 121. 4 measurements.
Observations:
C11 at 115x.
- 17 -
Year
—
1991
Spectra
Colors
W
W
Zone 151
Hough 467
Rating: 5 E
ADS 15373; HD 207731; SAO 90048
Position: 2151+2215
A
B
C
Magnitude
8.36
10.30
13.37
Separation
—
2.1 +
40.1 +
PA
—
221 +
238 -!
Year
—
1990
1905
Spectra
K2
Colors
Y
No
?
Notes:
AB 1893: 1.0 @ 181. 27 measurements.
AC 1892: 39.6 @ 339. 2 measurements.
Observations:
C8 at 104x.
Moderate
STF 2804
Rating: 2 M
ADS 15076; HD 205160; SAO 89791
Position: 2133+2042
A
B
C
Magnitude
7.02
8.30
11.60
Separation
—
3.2 +
97.1 -
PA
—
355 +
105 -
Year
—
1997
1922
Spectra
F6 V
F8
Colors
O
B
?
Notes:
AB 1831: 2.9 @ 317. Over 100 measurements. The stars share common proper
motion.
AC 1894: 98.2 @ 107. 5 measurements.
Observations:
C8 at 206x. "Very beautiful," wrote Webb.
C11 at 334x. AB was split at 112x, but better at 311. At 311, AB looked like the
eyese of a spook! At this power with the C11, the colors looked more like yW, yW, and
W. Nice pair. A neat little "Delphinus" lies just to the E of this double and shows up
best at 311.
- 18 -
Zone 151
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.20 inches; B = 15.2 inches.
Separation: AB = 4,646 feet; AC = 26.8 miles.
Distance (LY): 177
Total luminosity (Suns): 5.2
OS 454
Rating: 4 M
ADS 15461; HD 208503
Position: 2156+2420
A
B
C
Magnitude
7.85
10.20
11.68
Separation
—
7.2 +
43.3 +
PA
—
278 =
265 +
Year
—
1991
1915
Spectra
A0
Colors
W
B
?
Notes:
AB 1843: 6.8 @ 278. 28 measurements.
AC 1895: 43.1 @ 263. 3 measurements.
The stars show similar proper motions.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.06 inches.
Separation: AB = 8.20 miles; AC = 49.3 miles.
Distance (LY): 730
Total luminosity (Suns): 34
Jonckheere 2361
Rating: 5 M
SAO 90080
Position: 2154+2212
A
B
Magnitude
8.96
11.76
Separation PA
—
—
7.4 =
114 +
Notes:
1892: 7.4 @ 113. 6 measurements.
- 19 -
Year
—
1991
Spectra
K0
Colors
Y
W?
Zone 151
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.7 inches.
Separation: AB = 37.3 miles.
Distance (LY): 3,230
Total luminosity (Suns): 220
Difficult
A. G. 276
Rating: 4 D
ADS 15291
Position: 2146+2156
A
B
Magnitude
9.62
9.99
Separation PA
—
—
1.9 2+
Year
—
1999
Spectra
F8
Colors
W
W
Notes:
1901: 2.1 @ 359. 27 measurements.
Observations:
C11 at 634x.
STF 2849
Rating: 4 D
ADS 15491; SAO 90132
Position: 2158+2015
A
B
Magnitude
8.47
10.19
Separation PA
—
—
1.7 +
246 -
Year
—
1999
Spectra
G5
Notes:
1830: 1.1 @ 272. 35 measurements.
Observations:
C11 at 634x. Nice setting! The pair sits at the base of a four-star Y.
- 20 -
Colors
yW
W?
Zone 151
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.9 inches.
Separation: AB = 1.19 miles.
Distance (LY): 451
Total luminosity (Suns): 7.66
Pourteau 5454
Rating: 5 D
HD 206169; SAO 89885
Position: 2140+2457
A
B
Magnitude
8.36
11.90
Separation PA
—
—
8.9 +
80 =
Year
—
1898
Spectra
K0 III
Colors
Y
W
Notes:
1891: 8.1 @ 80. 2 measurements.
Observations:
C8 at 206x. Use averted vision on this faint pair. It forms the W vertex of a 9m right
triangle.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 2.15 miles.
Distance (LY): 155
Total luminosity (Suns): 0.83
- 21 -
Zone 151
Deep Sky Objects
Moderate
NGC 7137
Other Names: H II 261
Rating: 4 M
Position: 2148+2210
Type: Gal
Surface brightness: 12.9
Class: SAB(rs)c
Dimensions: 1.6' x 1.3'
Magnitude: 12.4
Observations:
C8 at 104x. It shows a bright, stellar nucleus and an extremely faint and difficult
halo.
Model (where the Sun is a baseball):
Its diameter would be 19 million miles.
Distance (LY): 127,000,000
Radial velocity (km/sec): +1,775
Luminosity (suns): 14,000,000,000
Zone 151, Map 4
Double Stars
Easy
STF 2841
Rating: 2 E
ADS 15431; HD 208202; SAO 107489
Position: 2154+1943
A
B
Magnitude
6.36
8.75
Separation PA
—
—
22.6 +
110 -
- 22 -
Year
—
1992
Spectra
K0 III
G5
Colors
yO!
B!
Zone 151
Notes:
1829: 22.2 @ 111. 46 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. However, the stars show similar proper
motion.
There is an 11.56m companion to B at 1.2 @ 313 (1991).
Observations:
C8 at 83x. Webb saw them as Y! and B.
C11 at 115x. Wow, a very bright field! A yW star (SAO 107474) lies about 12 min
W. The colors are very, very nice on this pair! Four or five 9.5m stars lie to the S and a
few more to the N. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches; B = 20.3 inches.
Separation: AB = 12.8 miles.
Distance (LY): 364
Total luminosity (Suns): 32
STF 2818
Rating: 3 E
HD 206485; SAO 107334
Position: 2142+1856
A
B
Magnitude
7.30
10.10
Separation PA
—
—
25.4 +
23 +
Year
—
1988
Notes:
1899: 20.3 @ 21. 10 measurements.
Observations:
C8 at 65x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches.
Separation: AB = 25.8 miles.
Distance (LY): 650
Total luminosity (Suns): 43
- 23 -
Spectra
G7 III
Colors
Y
O
Zone 151
OSS 224
Rating: 3 E
HD 207032; SAO 107380
Position: 2146+1545
A
B
Magnitude
7.81
9.27
Separation PA
—
—
58.3 1-
Year
—
1994
Spectra
G5
Colors
pY
Y
Notes:
1875: 58.4 @ 7. 15 measurements.
May be optical because Hipparcos gives different distances (650 and 59 light years).
Observations:
C11 at 115x.
STF 2834
Bur 1506 (C); ADS 15386; HD 207859; SAO 107450
Position: 2152+1918
A
B
C
Magnitude
6.82
10.19
12.50
Separation
—
4.3 +
28.3 +
PA
—
297 +
118 -
Rating: 3 E
Year
—
1991
1985
Notes:
AB 1830: 4.1 @ 289. 23 measurements.
AC 1908: 26.1 @ 121. 2 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.25 inches.
Separation: AB = 2.20 miles; AC = 14.5 miles.
Distance (LY): 328
Total luminosity (Suns): 17
- 24 -
Spectra
F6 IV
Colors
W
R
No
Zone 151
Aller 4
Rating: 3 E
SAO 107517
Position: 2156+1947
A
B
Magnitude
9.11
9.49
Separation PA
—
—
18.3 207 +
Year
—
1980
Spectra
G0
Colors
W
W
Notes:
1895: 18.5 @ 200. 9 measurements. The stars share common proper motion.
Observations:
C8 at 104x. It forms the horizontal bar of a large capital "H".
OS 455
Rating: 4 E
ADS 15475; HD 208552; SAO 107526
Position: 2157+1607
A
B
Magnitude
8.47
10.05
Separation PA
—
—
10.0 +
271 +
Year
—
1991
Notes:
1843: 9.3 @ 270. 19 measurements.
Mt. Wilson spectral classes are F5 and G5.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.4 inches; B = 21.7 inches.
Separation: AB = 5.04 miles.
Distance (LY): 323
Total luminosity (Suns): 4
- 25 -
Spectra
F8
G5
Colors
W
Y
Zone 151
Moderate
h947
Rating: 4 M
ADS 15383; HD 207840; SAO 107445
Position: 2152+1950
A
B
C
Magnitude
5.78
11.39
13.51
Separation
—
18.9 24.4 =
PA
—
98 +
312 -
Year
—
1999
1985
Spectra
B8 III
Colors
W
W?
No
Notes:
AB 1878: 20.7 @ 93. 8 measurements.
AC 1878: 24.4 @ 324. 6 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.0 inches.
Separation: AB = 17.1 miles; AC = 22.1 miles.
Distance (LY): 580
Total luminosity (Suns): 127
h284
Position: 2130+1501
A
B
Magnitude
8.91
11.86
Rating: 5 M
Separation PA
—
—
24.2 307 -
Year
—
1986
Notes:
1903: 24.3 @ 329. 2 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.8 inches.
Separation: AB = 15.9 miles.
Distance (LY): 420
Total luminosity (Suns): 4.04
- 26 -
Spectra
F8
Colors
W
?
Zone 151
Zone 151 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
1 Peg
2122+1948
1E
2
STF 2769
2111+2227
2E
1
STF 2841
2154+1943
2E
4
Hough 284
2116+1600
3E
2
A. G. 274
2140+2322
3E
3
STF 2818
2142+1856
3E
4
OSS 224
2146+1545
3E
4
A. G. 277
2146+2111
3E
3
STF 2834
2152+1918
3E
4
Aller 4
2156+1947
3E
4
Bur 1497
2101+1920
4E
2
A. G. 269
2105+2052
4E
1
h275
2107+1524
4E
2
STF 2761
2108+2428
4E
1
STF 2763
2109+1720
4E
2
A. G. 416
2121+1537
4E
2
h281
2121+1645
4E
2
A. G. 417
2122+1513
4E
2
Couteau 132
2122+2349
4E
1
h1647
2129+2210
4E
1
Component
A
B
C
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
C
BC
A
B
A
B
A
B
A
B
A
B
C
- 27 -
Mag
4.08
9.58
12.42
6.71
7.70
6.36
8.75
9.10
10.10
9.52
10.28
11.33
7.30
10.10
7.81
9.27
9.89
9.99
6.82
10.19
12.50
9.11
9.49
5.65
9.82
8.34
10.29
7.09
10.13
8.92
9.67
9.70
10.40
11.00
9.44
10.24
9.72
11.25
8.84
10.56
7.68
10.26
5.84
10.16
12.00
Separation
—
34.6 74.3 —
18.2 +
—
22.6 +
—
3.8 +
—
9.2 +
62
—
25.4 +
—
58.3 —
2.6 +
—
4.3 +
28.3 +
—
18.3 —
49 +
—
4.9 -!
—
23.4 —
5.6 +
—
17.1 +
PA
—
312 +
74.3 —
301 =
—
110 —
86 —
153 =
62
—
23 +
—
1—
59 +
—
297 +
28.3 +
—
207 +
—
336 +
—
176 +
—
352 —
111 —
293 -
35.6
—
24.2 —
14.0 =
—
29.2 =
—
13.2 +
—
41.1 +
40.3 -
47
—
19 —
335 =
—
4=
—
201 —
177 =
40.3 -
Zone 151
Designation
Position
Rating
Map
h1668
2137+2339
4E
3
OS 444
2139+2036
4E
3
Hough 465
2146+2210
4E
3
OS 455
2157+1607
4E
4
OSS 213
2100+1649
5E
2
Pourteau 5414
2135+2443
5E
3
Hough 467
2151+2215
5E
3
STF 2804
2133+2042
2M
3
STF 2739
2100+2004
3M
1
STF 2767
2111+1957
3M
2
h1641
2124+2416
4M
1
2 Peg
2130+2338
4M
1
h947
2152+1950
4M
4
OS 454
2156+2420
4M
3
h284
Jonckheere
2361
2130+1501
5M
4
2154+2212
5M
3
Bur 69
2103+2141
4D
1
A. G. 276
2146+2156
4D
3
STF 2849
2158+2015
4D
3
Pourteau 5454
2140+2457
5D
3
Component
A
B
A
B
A
B
C
BC
A
B
A
B
A
B
A
B
C
A
B
C
A
B
A
B
A
B
A
B
A
B
C
A
B
C
A
B
A
B
A
B
C
A
B
A
B
A
B
- 28 -
Mag
8.94
10.35
7.99
11.06
7.06
10.57
10.90
8.47
10.05
6.62
9.17
10.59
10.88
8.36
10.30
13.37
7.02
8.30
11.60
8.60
9.17
8.22
8.59
5.71
12.26
4.51
11.60
5.78
11.39
13.51
7.85
10.20
11.68
8.91
11.86
8.96
11.76
8.06
9.42
7.92
9.62
9.99
8.47
10.19
8.36
11.90
Separation
—
8.4 =
—
8.0 =
—
42.8 +
PA
—
37 +
—
277 +
—
246 =
4.7 +
—
10.0 +
—
70.6 —
24.8 +
—
2.1 +
40.1 +
—
3.2 +
97.1 —
3.3 +
—
2.4 —
53.9 +
—
29.9 +
—
18.9 24.4 =
—
7.2 +
43.3 +
—
24.2 —
7.4 =
—
0.5 75.1 —
1.9 —
1.7 +
—
8.9 +
79 —
271 +
—
37 =
—
128 +
—
221 +
40.1 +
—
355 +
97.1 —
253 +
—
28 —
309 —
331 —
98 +
24.4 =
—
278 =
43.3 +
—
307 —
114 +
—
348 +
75.1 —
2+
—
246 —
80 =
Zone 151
Deep Sky Objects
Object
NGC 7006
NGC 7137
NGC 7053
NGC 7003
NGC 7025
PK 72-17.1
NGC 7056
Position
2102+1611
2148+2210
2121+2305
2101+1748
2108+1620
2117+2410
2122+1839
Rating
3M
4M
5M
5D
5D
5D
5D
Map
2
3
1
2
2
1
2
Type
Gc (1)
Gal (Sc)
Gal
Gal (Sbc)
Gal (Sa)
Pn (2)
Gal (SBb)
- 29 -
Specifications
Surface
Mag
Br
11.5
12.4
12.9
13.0
13.5
13.0
12.3
12.8
13.8
12.2
12.9
12.6
Population