Zone 122, Master Map
Normal View
Zone Master, Normal View, 10 deg FOV
+34°00'
κ
σ
ν1
ν2
c
+32°00'
e
ρ
ζ
ε
+30°00'
ξ
ι
f
+28°00'
υ
d
+26°00'
ε
Hercules
17h 00m
16h 48m
16h 36m
16h 24m
16h 12m
Serpens Cauda
16h 00m
Zone 122, Map 1
Normal Image
Nu 1 CrB
Sigma CrB σ
Couteau 980
ν2
ρ
OS 305
Rho CrB
+33°00'
ν1
+34°00'
+35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h578
h581
+31°00'
+32°00'
23 Her
STF 2053 rej
ξ
Xi CrB
ι
16h 30m
16h 25m
16h 20m
16h 15m
16h 10m
16h 05m
16h 00m
Zone 122, Map 1
Mirror Image
+35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
σ
+34°00'
LDS 983
Sigma CrB
ν1
ν2
Couteau 980
Rho CrB
OS 305
+33°00'
ρ
Nu 1 CrB
h578
+32°00'
23 Her
STF 2053 rej
Xi CrBξ
ι
16h 00m
16h 05m
16h 10m
16h 15m
16h 20m
16h 25m
16h 30m
+31°00'
h581
Zone 122, Map 2
Normal Image
+30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
υ
+29°00'
ι
Upsilon CrB
STF 2011
STF 2004
PK 47+42.1
Epsilon CrB ε
+27°00'
A. G. 349
+28°00'
STF 2029
H V 75
Hough 406
STF 2049
Corona Borealis
Hercules
Serpens Cauda
Hipparcos 2270
Couteau 413
STF 2039 rej
16h 30m
16h 25m
16h 20m
16h 15m
16h 10m
16h 05m
16h 00m
+26°00'
STF 2022
Zone 122, Map 2
Mirror Image
+30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
υ
+29°00'
ι
Upsilon CrB
STF 2011
STF 2004
A. G. 349
+27°00'
PK 47+42.1
+28°00'
STF 2029
Epsilon CrB
H V 75
STF 2049
Corona Borealis
Serpens Cauda
Hercules
Hipparcos 2270
Couteau 413
STF 2039 rej
16h 00m
16h 05m
16h 10m
16h 15m
16h 20m
16h 25m
16h 30m
+26°00'
STF 2022
Zone 122, Map 3
Normal Image
+34°00'
+35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+33°00'
STF 2069 rej
+32°00'
Scheiner 539
STF 2112
53 Her
ζ
Zeta Her
Scheiner 540
ε
Epsilon Her
STF 2061
Lau 3
STF 2098
17h 00m
16h 55m
16h 50m
16h 45m
16h 40m
16h 35m
16h 30m
+31°00'
Tycho 836
Zone 122, Map 3
Mirror Image
+34°00'
+35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+33°00'
STF 2069 rej
+32°00'
Scheiner 539
STF 2112
53 Her
Zeta Herζ
Scheiner 540
STF 2053 rej
Epsilon Her ε
STF 2061
Lau 3
STF 2098
16h 30m
16h 35m
16h 40m
16h 45m
16h 50m
16h 55m
17h 00m
+31°00'
Tycho 836
Zone 122, Map 4
Normal Image
+30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2098
+29°00'
Heintz 13
Bur 42
STF 2107
Hough 406
56 Her
LDS 986
Weisse 31
OS 320
17h 00m
16h 55m
16h 50m
16h 45m
16h 40m
16h 35m
16h 30m
+26°00'
+27°00'
+28°00'
46 Her
Zone 122, Map 4
Mirror Image
+30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 2098
+29°00'
Heintz 13
Bur 42
STF 2107
+28°00'
46 Her
+26°00'
+27°00'
PK 47+42.1
Hough 406
STF 2049
Weisse 31
56 Her LDS 986
OS 320
Couteau 413
16h 30m
16h 35m
16h 40m
16h 45m
16h 50m
16h 55m
17h 00m
Zone 122
38 Double Stars, 1 Planetary Nebula
Flamsteed
R
23 Her.......................................................... 3
46 Her........................................................ 19
53 Her........................................................ 17
56 Her........................................................ 20
Rho CrB ...................................................... 3
S
Scheiner 539.............................................. 15
Scheiner 540.............................................. 14
Sigma CrB................................................... 2
STF 2004..................................................... 9
STF 2011................................................... 10
STF 2022................................................... 11
STF 2029..................................................... 7
STF 2049................................................... 11
STF 2053 rej ............................................... 5
STF 2061................................................... 15
STF 2069 rej ............................................. 14
STF 2098................................................... 13
STF 2107................................................... 22
STF 2112................................................... 16
A
A. G. 349..................................................... 8
B
Bur 42........................................................ 19
C
Couteau 413 .............................................. 10
Couteau 980 ................................................ 4
H
H V 75......................................................... 8
h581............................................................. 5
Heintz 13................................................... 19
Hipparcos 2270 ........................................... 7
Hough 406................................................. 21
T
Tycho 836 ................................................. 16
U
L
Upsilon CrB ................................................ 9
Lau 3 ......................................................... 13
LDS 986 .................................................... 20
W
N
Weisse 31 .................................................. 18
Nu 1 CrB ..................................................... 4
X
O
Xi CrB......................................................... 5
OS 305 ........................................................ 6
OS 320 ...................................................... 21
Z
Zeta Her .................................................... 17
P
PK 47+42.1 ............................................... 12
-1-
Zone 122
Zone 122, Map 1
Double Stars
Easy
Sigma CrB
17 CrB; TZ CrB; STF 2032; ADS 9979; HD 146361; SAO 65165
Position: 1615+3352
A
B
C
D
Magnitude
5.23
6.26
13.30
10.80
Separation
—
6.9 +!
18.0 88.4 +!!
PA
—
237 +!!
103 -!!
82 -
Year
—
1999
1984
1996
Rating: 2 E
Spectra
G0 V
G1 V
Colors
Y
pB
?
?
Notes:
AB 1827: 1.3 @ 89. Over 100 measurements. The stars share common proper
motion. The orbit may take 1,000 years (Rabe, 1958), with semi-major axis of 6.6" and
direct motion. At closest approach, the two may be about 80 AU apart.
AC 1832: 20.0 @ 245. 9 measurements.
AD 1832: 40.0 @ 89. 87 measurements.
A third component lies 12' SW and is the red dwarf Luyten 14836 (12.31m). It lies at
least 15,000 AU from AB.
Star A is a double-lined spectroscopic binary with a 1.1398 day period and total mass
of 1.7 suns. It exhibits atmospheric and coronal activity, and radio flares. It is also a
Delta Scuti variable.
Observations:
C8 at 83x. Some observers report both as W. Webb saw them as Y and B and said
there was a "great divergence as to colours."
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.45 inches; B = 15.4 inches.
Separation: AB = 4,013 feet; AC = 1.99 miles; Aa = 6.90 inches.
Distance (LY): 71
Total luminosity (Suns): 4.21
-2-
Zone 122
23 Her
Rating: 3 E
ADS 10031; HD 147835; SAO 65262; H V 38
Position: 1623+3220
A
B
Magnitude
6.41
9.71
Separation PA
—
—
35 =
35 +
Year
—
1958
Spectra
A3 V,
7 IV
Colors
W
?
Notes:
Star A is a spectroscopic binary and rotates at 232 kps. It is a member of the Ursa
Major Moving Stream.
Dembowski measured 34.9 @ 19.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.10 inches.
Separation: AB = 28.4 miles.
Distance (LY): 520
Total luminosity (Suns): 66
Rho CrB
15 CrB; South 676; HD 143761; SAO 65024
Position: 1601+3318
A
B
Magnitude
5.39
8.70
Separation PA
—
—
89.6 +! 71 -
Rating: 4 E
Year
—
1923
Notes:
1825: 74.2 @ 109. 14 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.30 inches.
Separation: AB = 7.97 miles.
Distance (LY): 57
Total luminosity (Suns): 1.84
-3-
Spectra
G2 V
Colors
W
dB
Zone 122
Couteau 980
Position: 1617+3341
A
B
C
Magnitude
10.48
10.30
11.27
Rating: 5 E
Separation
—
0.5 +
13.0
PA
—
167 +!!
80
Year
—
1994
1973
Spectra
Colors
W
No
?
Notes:
AB 1973: 0.4 @ 10. 5 measurements.
AC 1 measurement.
Observations:
C11 at 115x. B was not detected even at 634x.
Nu 1 CrB
20 CrB; SI 29; HD 147749; SAO 65257; H VI 18
Position: 1622+3348
A
B
a
b
Magnitude
5.20
5.39
11.10
12.70
Separation
—
359.5 -!
68.8 +
281.7
PA
—
165 238 +
154
Rating: 5 E
Year
—
1984
1921
1913
Notes:
AB 1835: 371.8 @ 166. 9 measurements.
Aa 1879: 66.4 @ 237. 3 measurements.
Ab 1 measurement.
The primary is an infra-red source.
The stars have different proper motions.
Observations:
C8 at 104x. Use averted vision to see C and D.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 66.0 inches; B = 28.2 inches.
Separation: AB = 314 miles; Aa = 60.1 miles.
Distance (LY): 560
Total luminosity (Suns): 383
-4-
Spectra
M2 III
K5 III
Colors
Y!
pY
?
W?
Zone 122
STF 2053 rej
Rating: 5 E
ADS B7643; SAO 65322
Position: 1628+3108
A
B
Magnitude
9.95
10.84
Separation PA
—
—
21.6 +
351 +
Year
—
1991
Spectra
G0
Colors
W
?
Notes:
AB 1903: 21.3 @ 350. 11 measurements. The stars share common proper motion.
Observations:
C8 at 104x.
Moderate
h581
Position: 1604+3225
A
B
Magnitude
10.08
12.10
Rating: 5 M
Separation PA
—
—
18.7
51
Year
—
1936
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C8 at 104x.
Distance (LY): 1,480
Total luminosity (Suns): 70,202
Xi CrB
19 CrB; Bpm 167; HD 147677; SAO 65254
Position: 1622+3054
A
B
Magnitude
4.90
12.10
Separation PA
—
—
185.1
60
Rating: 5 M
Year
—
1909
-5-
Spectra
K0 III
Colors
Y!
?
Zone 122
Notes:
1 measurement. This star is a member of the Hyades group and an infra-red source.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 53.2 miles.
Distance (LY): 184
Total luminosity (Suns): 29.44
Difficult
OS 305
Rating: 3 D
ADS 9958; HD 145802; SAO 65129
Position: 1612+3320
A
B
C
Magnitude
6.40
10.39
Separation
—
5.6 +
78.4 +!
PA
—
263 +
84 -
Year
—
1991
1960
Notes:
AB 1843: 4.7 @ 261. 19 measurements.
AC 1905: 62.70 @ 86. 2 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 49.5 inches.
Separation: AB = 4.54 miles; AC = 63.6 miles.
Distance (LY): 520
Total luminosity (Suns): 60
-6-
Spectra
K2 III
Colors
yO!!
R?
No
Zone 122
Zone 122, Map 2
Double Stars
Easy
Hipparcos 2270
Rating: 3 E
SAO 84182
Position: 1605+2514
A
B
Magnitude
9.44
9.54
Separation PA
—
—
27.6 +
8-
Year
—
1991
Spectra
G0
Colors
yW
W
Notes:
1893: 27.4 @ 9. 9 measurements.
This system may be optical as Hipparcos shows different distances (560 and 434 light
years).
Observations:
C11 at 115x. Very nice field.
STF 2029
Rating: 3 E
ADS 9973; HD 146168; SAO 84258
Position: 1614+2844
A
B
Magnitude
7.72
9.62
Separation PA
—
—
6.1 187 -
Year
—
1991
Notes:
1830: 6.3 @ 188. 28 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.10 inches.
Separation: AB = 5.14 miles.
Distance (LY): 540
Total luminosity (Suns): 24
-7-
Spectra
F2 IV
Colors
Y
B
Zone 122
A. G. 349
Rating: 4 E
ADS 9885; HD 143706; SAO 84145
Position: 1601+2807
A
B
Magnitude
9.50
10.97
Separation PA
—
—
11.9 +
227 -
Year
—
1975
Spectra
F8
Colors
W
bW
Notes:
1904: 11.6 @ 229. 4 measurements.
Observations:
C11 at 115x. This pair is the obtuse angle of a small 10m triangle.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.3 inches.
Separation: AB = 1.44 miles.
Distance (LY): 78
Total luminosity (Suns): 0.095
H V 75
Rating: 4 E
HD 143707; SAO 84144
Position: 1601+2610
A
B
Magnitude
7.94
11.48
Separation PA
—
—
55.0 +! 112 +
Year
—
1991
Notes:
1841: 42.4 @ 108. 14 measurements.
Observations:
C8 at 104x. Bleak field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.6 inches.
Separation: AB = 28.8 miles.
Distance (LY): 335
Total luminosity (Suns): 6.24
-8-
Spectra
F2
Colors
W
?
Zone 122
Moderate
STF 2004
Rating: 3 M
ADS 9907; HD 144111; SAO 84167
Position: 1603+2851
A
B
Magnitude
9.61
10.46
Separation PA
—
—
1.9 +
279 +
Year
—
1991
Spectra
K2
Colors
Y
W
Notes:
1830: 1.8 @ 278. 26 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 29.4 inches.
Separation: AB = 6.31 miles.
Distance (LY): 2,130
Total luminosity (Suns): 132
Upsilon CrB
18 CrB; Sh 223; ADS 9990; HD 146738; SAO 84281
Position: 1617+2909
A
B
C
D
Magnitude
5.78
11.70
12.70
11.70
Separation
—
53.9 87.1 123.4 -
PA
—
25 21 51 -
Rating: 4 M
Year
—
1962
1962
1962
Spectra
A3 V
Colors
W
?
?
?
Notes:
AB 1879: 56.0 @ 30. 5 measurements. Star A is a spectroscopic binary. This star
is a member of the Sirius Group. The stars share common proper motion.
AC 1823: 88.7 @ 24. 11 measurements.
AD 1823: 126.4 @ 55. 9 measurements.
-9-
Zone 122
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.10 inches.
Separation: AB = 69.8 miles; AC = 113 miles; AD = 160 miles.
Distance (LY): 830
Total luminosity (Suns): 262.447
Couteau 413
Rating: 5 M
SAO 84391
Position: 1628+2506
A
B
Magnitude
10.18
10.50
Separation PA
—
—
4.2 =
321 +
Year
—
1993
Spectra
A0
Colors
W
yW
Notes:
1969: 4.2 @ 318. 2 measurements.
Observations:
C11 at 115x. Very nice field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.91 inches.
Separation: AB = 2.20 miles.
Distance (LY): 336
Total luminosity (Suns): 1.29
Difficult
STF 2011
Guillaume 16 (C); ADS 9930; HD 144999; SAO 84205
Position: 1608+2900
A
B
C
Magnitude
7.74
9.84
6.00
Separation
—
2.6 +
118.3 -
PA
—
68 +
350 =
- 10 -
Year
—
1991
1983
Rating: 3 D
Spectra
A3 IV
Colors
B
rO
W
Zone 122
Notes:
AB 1829: 2.5 @ 65. 27 measurements.
AC 1896: 119.3 @ 350. 6 measurements.
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.0 inches.
Separation: AB = 4.86 miles; AC = 222 miles.
Distance (LY): 1,200
Total luminosity (Suns): 108
STF 2022
Rating: 5 D
ADS 9966; HD 145976; SAO 84247
Position: 1613+2640
A
B
Magnitude
6.56
10.03
Separation PA
—
—
2.3 150 +
Year
—
1991
Spectra
F3 V
Colors
yW
?
Notes:
1830: 2.8 @ 130. 64 measurements.
Observations:
C8 at 280x. A diffraction mask is a big help.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.80 inches.
Separation: AB = 4,488 feet.
Distance (LY): 238
Total luminosity (Suns): 11.6
STF 2049
Rating: 5 D
ADS 10070; HD 148554; SAO 84393
Position: 1628+2559
A
B
Magnitude
7.35
8.16
Separation PA
—
—
1.1 =
194 -
- 11 -
Year
—
1999
Spectra
A3 V
Colors
W
W
Zone 122
Notes:
1829: 1.1 @ 215. Over 100 measurements.
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.10 inches.
Separation: AB = 4,488 feet.
Distance (LY): 500
Total luminosity (Suns): 41
Deep Sky Objects
Difficult
PK 47+42.1
Rating: 5 D
Other Names: Abell 39
Position: 1628+2754
Type: Pn
Dimensions: 174''
Class: 2c
Magnitude: 12.9
Notes:
The central star is 15.8m.
Observations:
C8 at 104x. Using an O-III filter, it was barely detectable. Even then, it was very
faint without any details- just a large, hazy ghost.
Model (where the Sun is a baseball):
Its diameter would be 1,400 miles.
Distance (LY): 5,150
Luminosity (suns): 14
- 12 -
Zone 122
Zone 122, Map 3
Double Stars
Easy
STF 2098
Rating: 3 E
ADS 10201; HD 151367; SAO 65531
Position: 1646+3000
A
B
C
D
Magnitude
8.77
9.63
8.80
10.96
Separation
—
14.5 +
65.5 +
66.3 +
PA
—
144 129 17 +
Year
—
1995
1995
1995
Spectra
G5 V
F0
G5
Colors
Y
W
Y
R
Notes:
AB 1831: 14.3 @ 147. 24 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. However, the stars show similar proper
motion. But C does show a different PM altogether.
AC 1909: 64.2 @ 140. 18 measurements.
AD 1902: 61.4 @ 14. 7 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches; B = 11.4 inches; C = 20.3 inches.
Separation: AB = 9.50 miles; AC = 42.9 miles; AD = 43.5 miles.
Distance (LY): 420
Total luminosity (Suns): 12
Lau 3
Position: 1640+3038
A
B
Magnitude
9.71
10.41
Rating: 4 E
Separation PA
—
—
80.6 263 -
- 13 -
Year
—
1991
Spectra
Colors
Y!
W
Zone 122
Notes:
1902: 81.9 @ 265. 5 measurements.
Observations:
C8 at 104x.
Distance (LY): 173
Total luminosity (Suns): 0.5
Scheiner 540
Rating: 4 E
SAO 65498
Position: 1643+3113
A
B
Magnitude
9.51
11.32
Separation PA
—
—
11.5 227 -
Year
—
1991
Spectra
F0
Colors
W
O?
Notes:
1895: 12.2 @ 229. 8 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.4 inches.
Separation: AB = 9.69 miles.
Distance (LY): 540
Total luminosity (Suns): 4.30
STF 2069 rej
Rating: 5 E
ADS 10127; HD 149930; SAO 65427
Position: 1637+3349
A
B
Magnitude
7.20
10.80
Separation PA
—
—
28.8 +
75 +
Notes:
1900: 27.3 @ 71. 4 measurements.
- 14 -
Year
—
1924
Spectra
K0 V
Colors
Y
B
Zone 122
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 2.40 inches.
Separation: AB = 15.2 miles.
Distance (LY): 338
Total luminosity (Suns): 14.4
Moderate
STF 2061
Rating: 5 M
ADS 10113; HD 149394; SAO 65376
Position: 1633+3054
A
B
Magnitude
7.95
10.44
Separation PA
—
—
2.4 27 +
Year
—
1991
Spectra
F2
Colors
bW
?
Notes:
1829: 2.6 @ 25. 32 measurements.
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.6 inches.
Separation: AB = 1.38 miles.
Distance (LY): 371
Total luminosity (Suns): 9
Scheiner 539
Position: 1636+3219
A
B
Magnitude
9.93
11.50
Rating: 5 M
Separation PA
—
—
10.6
233
Notes:
1 measurement.
- 15 -
Year
—
1894
Spectra
Colors
Y
W
Zone 122
Observations:
C11 at 115x. Very nice field.
Tycho 836
Position: 1648+3129
A
B
Magnitude
10.28
11.14
Rating: 5 M
Separation PA
—
—
2.5
218
Year
—
1991
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C11 at 193x. It is the S vertex of a small 9m triangle.
Distance (LY): 358
Total luminosity (Suns): 1.12
Difficult
STF 2112
Rating: 3 D
ADS 10284
Position: 1658+3147
A
B
Magnitude
9.09
9.67
Separation PA
—
—
2.1 +
261 =
Year
—
1991
Notes:
1830: 1.9 @ 261. 27 measurements.
Observations:
C11 at 339x. It is the obtuse angle of a long, narrow triangle.
- 16 -
Spectra
G5
Colors
W
W
Zone 122
Zeta Her
Rating: 4 D
40 Her; Rutilicus; STF 2084; ADS 10157; HD 150680; SAO 65485
Position: 1641+3136
A
B
Magnitude
2.98
5.47
Separation PA
—
—
0.9 =
20 -
Year
—
1999
Spectra
G1 IV
dK0
Colors
Y
W
Notes:
It was discovered by William Herschel in 1782.
1826: 0.9 @ 23. Over 100 measurements. The orbit takes 34.487 years (Baize,
1976) with a semi-major axis of 1.36" and retrograde motion. Star A is a spectroscopic
binary with a 10.5 year period and 1.14 solar masses. It is also an infra-red source. Star
B is 0.82 solar masses.
The A star has already left the Main Sequence. Since it is almost the same mass as
the Sun, it serves as a model of what the Sun will some day evolve into.
The system belongs to the Zeta Her group.
Observations:
C8 at 280x. Chris Peters (Rio Rico, AZ; 8" Newt)— magnification of 358x, "showed
the star elongated in an almost N-W line with the fainter star to the N." Both looked Y.
Webb saw them as Y and R.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.45 inches; B = 20.1 inches.
Separation: AB = 319 feet.
Distance (LY): 35
Total luminosity (Suns): 7.92
53 Her
Bur 1454; HD 152598; SAO 65627
Position: 1653+3142
A
B
Magnitude
5.34
11.77
Rating: 5 D
Separation PA
—
—
70.9 +
64 +
Notes:
1913: 66.1 @ 63. 2 measurements.
- 17 -
Year
—
1960
Spectra
F0 V
Colors
W
?
Zone 122
Observations:
C8 at 206x. If you use averted vision and high power, you might glimpse B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.70 inches.
Separation: AB = 10.8 miles.
Distance (LY): 98
Total luminosity (Suns): 5.24
Zone 122, Map 4
Double Stars
Easy
Weisse 31
Rating: 3 E
ADS 10216
Position: 1648+2538
A
B
C
Magnitude
9.70
9.90
10.90
Separation
—
5.0 +
28.2 +
PA
—
317 =
249 +
Year
—
1999
1987
Notes:
AB 1839: 4.9 @ 317. 32 measurements.
AC 1879: 25.4 @ 243. 9 measurements.
Observations:
C8 at 104x. The AB stars look fainter than 8.6— maybe 9.4?
- 18 -
Spectra
Colors
W
W
W
Zone 122
Heintz 13
Position: 1653+2925
A
B
Magnitude
9.98
10.15
Rating: 3 E
Separation PA
—
—
7.7 121 -?
Year
—
1991
Spectra
G0
G0
Colors
yW
yW
Notes:
1896: 8.3 @ 307. 6 measurements. Quadrant reversal?
This may be an optical pair as Hipparcos gives different distances (487 and 121 light
years).
Observations:
C11 at 115x. This pair is the south vertex of a small 9m triangle.
Bur 42
Rating: 4 E
ADS 10148
Position: 1640+2901
A
B
Magnitude
10.19
10.66
Separation PA
—
—
7.6 +
40 -
Year
—
1991
Spectra
G0
Colors
yW
bW
Notes:
1873: 7.5 @ 41. 16 measurements.
This pair may be optical as Hipparcos gives different distances (179 and 30 light
years).
Observations:
C11 at 115x.
46 Her
STF 2095; ADS 10194; HD 151237; SAO 84577
Position: 1645+2821
A
B
Magnitude
7.14
9.07
Separation PA
—
—
5.3 +
160 -
- 19 -
Rating: 4 E
Year
—
1991
Spectra
F5 III
Colors
W
O
Zone 122
Notes:
1822: 5.0 @ 168. 4 measurements.
Observations:
C8 at 104x. Webb saw them as Y and ? or W and B. Franks saw Y and B.
56 Her
STF 2110 rej; ADS 10259; HD 152863; SAO 84692
Position: 1655+2544
A
B
Magnitude
6.10
10.60
Separation PA
—
—
17.8 91 -
Rating: 4 E
Year
—
1998
Spectra
G5 III
Colors
dY
?
Notes:
1841: 18.6 @ 95. 18 measurements. Star A is a spectroscopic binary.
This star is a member of the Sirius Group.
Observations:
C8 at 65x. Color reports vary, including yO, ? and pB, W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39.0 inches.
Separation: AB = 12.7 miles.
Distance (LY): 457
Total luminosity (Suns): 61
LDS 986
Position: 1657+2541
A
B
Magnitude
10.72
10.83
Rating: 4 E
Separation PA
—
—
8.4 +
266 -
Notes:
1897: 8.0 @ 267. 5 measurements.
Observations:
C11 at 115x.
- 20 -
Year
—
1991
Spectra
Colors
W
W
Zone 122
Hough 406
Rating: 5 E
ADS 10090; HD 148996; SAO 84419
Position: 1631+2603
A
B
Magnitude
8.76
11.29
Separation PA
—
—
27.6 +
21 -
Year
—
1991
Spectra
K0
Colors
Y
W?
Notes:
1892: 26.3 @ 22. 9 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.4 inches.
Separation: AB = 125 miles.
Distance (LY): 2,900
Total luminosity (Suns): 270
Moderate
OS 320
Rating: 5 M
ADS 10282; HD 153373; SAO 84729
Position: 1658+2520
A
B
Magnitude
8.39
11.66
Separation PA
—
—
5.9 +
252 +
Year
—
1991
Notes:
1849: 3.5 @ 247. 12 measurements.
Observations:
C11 at 115x. A nice field lies to the W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.7 inches.
Separation: AB = 4.97 miles.
Distance (LY): 540
Total luminosity (Suns): 10.4
- 21 -
Spectra
F0
Colors
W
?
Zone 122
Difficult
STF 2107
Rating: 5 D
ADS 10235; HD 152380; SAO 84655
Position: 1652+2840
A
B
Magnitude
6.92
8.58
Separation PA
—
—
1.4 +
96 -
Year
—
1999
Spectra
F6 V
Colors
B
B
Notes:
1828: 1.1 @ 149. Over 100 measurements. The orbital period is 261.82 years (Rabe,
1927), with semi-major axis of 0.98" and direct motion.
Observations:
C8 at 280x. Webb saw them as Y and B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.20 inches.
Separation: AB = 2,112 feet.
Distance (LY): 185
Total luminosity (Suns): 7.6
- 22 -
Zone 122
Zone 122 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
Sigma CrB
Hipparcos
2270
1615+3352
2E
1
1605+2514
3E
2
STF 2029
1614+2844
3E
2
23 Her
1623+3220
3E
1
STF 2098
1646+3000
3E
3
Weisse 31
1648+2538
3E
4
Heintz 13
1653+2925
3E
4
A. G. 349
1601+2807
4E
2
Rho CrB
1601+3318
4E
1
H V 75
1601+2610
4E
2
Lau 3
1640+3038
4E
3
Bur 42
1640+2901
4E
4
Scheiner 540
1643+3113
4E
3
46 Her
1645+2821
4E
4
56 Her
1655+2544
4E
4
LDS 986
1657+2541
4E
4
Couteau 980
1617+3341
5E
1
Nu 1 CrB
1622+3348
5E
1
STF 2053 rej
1628+3108
5E
1
Component
A
B
C
D
A
B
A
B
A
B
A
B
C
D
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
A
B
a
b
A
B
- 23 -
Mag
5.23
6.26
13.30
10.80
9.44
9.54
7.72
9.62
6.41
9.71
8.77
9.63
8.80
10.96
9.70
9.90
10.90
9.98
10.15
9.50
10.97
5.39
8.70
7.94
11.48
9.71
10.41
10.19
10.66
9.51
11.32
7.14
9.07
6.10
10.60
10.72
10.83
10.48
10.30
11.27
5.20
5.39
9.95
10.84
Separation
—
6.9 +!
18.0 88.4 +!!
—
27.6 +
—
6.1 —
35 =
—
14.5 +
65.5 +
66.3 +
—
5.0 +
28.2 +
—
7.7 —
11.9 +
—
89.6 +!
—
55.0 +!
—
80.6 —
7.6 +
—
11.5 —
5.3 +
—
17.8 —
8.4 +
—
0.5 +
13.0
—
359.5 -!
68.8 +
281.7
—
21.6 +
PA
—
237 +!!
18.0 88.4 +!!
—
8—
187 —
35 +
—
144 65.5 +
66.3 +
—
317 =
28.2 +
—
121 -?
—
227 —
71 —
112 +
—
263 —
40 —
227 —
160 —
91 —
266 —
167 +!!
13.0
—
165 238 +
154
—
351 +
Zone 122
Designation
Position
Rating
Map
Hough 406
1631+2603
5E
4
STF 2069 rej
1637+3349
5E
3
STF 2004
1603+2851
3M
2
Upsilon CrB
1617+2909
4M
2
h581
1604+3225
5M
1
Xi CrB
1622+3054
5M
1
Couteau 413
1628+2506
5M
2
STF 2061
1633+3054
5M
3
Scheiner 539
1636+3219
5M
3
Tycho 836
1648+3129
5M
3
OS 320
1658+2520
5M
4
STF 2011
1608+2900
3D
2
OS 305
1612+3320
3D
1
STF 2112
1658+3147
3D
3
Zeta Her
1641+3136
4D
3
STF 2022
1613+2640
5D
2
STF 2049
1628+2559
5D
2
STF 2107
1652+2840
5D
4
53 Her
1653+3142
5D
3
Component
A
B
A
B
A
B
A
B
C
D
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
Mag
8.76
11.29
7.20
10.80
9.61
10.46
5.78
11.70
12.70
11.70
10.08
12.10
4.90
12.10
10.18
10.50
7.95
10.44
9.93
11.50
10.28
11.14
8.39
11.66
7.74
9.84
6.00
6.40
10.39
9.09
9.67
2.98
5.47
6.56
10.03
7.35
8.16
6.92
8.58
5.34
11.77
Separation
—
27.6 +
—
28.8 +
—
1.9 +
—
53.9 87.1 123.4 —
18.7
—
185.1
—
4.2 =
—
2.4 —
10.6
—
2.5
—
5.9 +
—
2.6 +
118.3 —
5.6 +
78.4 +!
—
2.1 +
—
0.9 =
—
2.3 —
1.1 =
—
1.4 +
—
70.9 +
PA
—
21 —
75 +
—
279 +
—
25 87.1 123.4 —
51
—
60
—
321 +
—
27 +
—
233
—
218
—
252 +
—
68 +
118.3 —
263 +
78.4 +!
—
261 =
—
20 —
150 +
—
194 —
96 —
64 +
Deep Sky Objects
Object
PK 47+42.1
Position
1628+2754
Rating
5D
Map
2
Type
Pn (2c)
- 24 -
Specifications
Surface
Mag
Br
12.9
Population