Zone 265, Master Map
-24°00'
Normal View
Zone Master, Normal View, 10 deg FOV
σ
-26°00'
π
-28°00'
ρ Scorpius
c
υ
Libra Hydra
τ
Lupus
g
d
χ
ψ2
-34°00'
ξ1
ξ2
-32°00'
Centaurus
ψ1
φ2
e
-38°00'
h
θ
-36°00'
φ1
η
υ
δ
16h 32m 16h 24m
-30°00'
f
16h 08m 16h 00m 15h 52m
15h 36m 15h 28m 15h 20m 15h 12m
14h 56m 14h 48m 14h 40m 14h 32m
Zone 265, Map 1
Normal Image
-25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 6599
σ
Sigma Lib
-26°00'
Innes 537 Comstock 3
Holden 24
-27°00'
h4767
Bur 352
Leavenworth 6
-28°00'
h4727
-29°00'
h4740
h4774
Libra
15h 30m
15h 25m
15h 20m
2 Lup
15h 15m
15h 10m
15h 05m
Hydra
15h 00m
Zone 265, Map 1
Mirror Image
-25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 6599
Sigma Lib
Innes 537
Comstock 3
-26°00'
σ
Holden 24
Bur 352
-27°00'
h4767
Leavenworth 6
-28°00'
h4727
h4774
Hydra
Libra
15h 00m
15h 05m
15h 10m
15h 15m
2 Lup
15h 20m
15h 25m
15h 30m
-29°00'
h4740
Zone 265, Map 2
Normal Image
2 Lup
-30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Lupus
-31°00'
Centaurus
h4743
-34°00'
NGC 5824
Howe 78
Howe 77
h4752
15h 30m
15h 25m
15h 20m
-33°00'
-32°00'
See 225
Bos 1281
15h 15m
15h 10m
15h 05m
15h 00m
Zone 265, Map 2
Mirror Image
-30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
2 Lup
Lupus
Centaurus
-31°00'
h4722
-32°00'
See 225
Bos 1281
-33°00'
h4743
-34°00'
NGC 5824
Howe 77
h4752
See 215
15h 00m
15h 05m
15h 10m
15h 15m
15h 20m
15h 25m
15h 30m
Zone 265, Map 3
Normal Image
Harvard 248
φ2
Phi 1 Lup
h4755
h4724
-38°00'
Cordoba 271
-37°00'
φ1
-36°00'
-35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-39°00'
Howe 76
υ
15h 30m
15h 25m
15h 20m
15h 15m
15h 10m
15h 05m
15h 00m
Zone 265, Map 3
Mirror Image
φ1
-36°00'
-35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Phi 1 Lup
h4755
Harvard 248
-37°00'
φ2
h4724
-38°00'
Cordoba 271
-39°00'
Howe 76
υ
15h 00m
15h 05m
15h 10m
15h 15m
15h 20m
15h 25m
15h 30m
Zone 265, Map 4
Normal Image
-25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
2 Sco
-26°00'
Bur 354
-27°00'
π Pi Sco
See 255
ρ
Upsilon Lib
-29°00'
υ
-28°00'
Bur 121
Rho Sco
Scorpius
Libra
τ
16h 00m
15h 55m
15h 50m
15h 45m
Argelander 28
15h 40m
15h 35m
15h 30m
Zone 265, Map 4
Mirror Image
-25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Pi Sco
-27°00'
π
-26°00'
2 Sco
Bur 354
υ
Upsilon Lib
h4774
ρ
Rho Sco
Scorpius
Libra
τ
15h 30m
15h 35m
15h 40m
Argelander 28
15h 45m
15h 50m
15h 55m
16h 00m
-29°00'
-28°00'
Bur 121
Zone 265, Map 5
Normal Image
-30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-32°00'
-31°00'
Argelander 28
h4821
-33°00'
Cordoba 272
Howe 78
ξ1 Xi Lup
ξ2
ψ1
Cordoba 189
ψ2
16h 00m
15h 55m
15h 50m
15h 45m
15h 40m
15h 35m
15h 30m
-34°00'
χ
Zone 265, Map 5
Mirror Image
-30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h4821
-32°00'
-31°00'
Argelander 28
-33°00'
Cordoba 272
Howe 78
ξ1 Xi Lup
ξ2
ψ1
Cordoba 189
ψ2
15h 30m
15h 35m
15h 40m
15h 45m
15h 50m
15h 55m
16h 00m
-34°00'
χ
Zone 265, Map 6
Normal Image
-35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-36°00'
Dunlop 192
-37°00'
Howe 81
-38°00'
NGC 5986
Eta Lup
-39°00'
η
Innes 89
16h 00m
15h 55m
15h 50m
15h 45m
15h 40m
15h 35m
15h 30m
Zone 265, Map 6
Mirror Image
-35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
See 256
-37°00'
Harvard 248
-36°00'
Dunlop 192
-38°00'
NGC 5986
Eta Lup
-39°00'
η
Innes 89
15h 30m
15h 35m
15h 40m
15h 45m
15h 50m
15h 55m
16h 00m
Zone 265
4 Reference Stars, 32 Double Stars, 2 Globular Clusters
Flamsteed
Harvard 248 ......................................... 13
Holden 24............................................... 4
Howe 76............................................... 12
Howe 77................................................. 8
Howe 78............................................... 20
2 Lup...................................................... 7
2 Sco .................................................... 15
A
Argelander 28 ...................................... 19
I
B
Innes 537................................................ 5
Innes 89................................................ 22
Bos 1281 ................................................ 9
Bur 121 ................................................ 15
Bur 352 .................................................. 3
Bur 354 ................................................ 14
L
Leavenworth 6 ....................................... 3
C
N
Comstock 3 ............................................ 5
Cordoba 189 ........................................ 20
Cordoba 271 ........................................ 12
Cordoba 272 ........................................ 18
NGC 5824 ............................................ 10
NGC 5986 ............................................ 22
D
Phi 1 Lup.............................................. 11
Pi Sco ................................................... 17
P
Dunlop 192 .......................................... 21
R
H
Rho Sco................................................ 16
h4724 ................................................... 13
h4727 ..................................................... 2
h4740 ..................................................... 6
h4743 ..................................................... 7
h4752 ..................................................... 8
h4755 ................................................... 11
h4767 ..................................................... 4
h4774 ..................................................... 6
h4821 ................................................... 19
S
See 225................................................... 9
Sigma Lib............................................... 2
U
Upsilon Lib .......................................... 14
X
Xi Lup .................................................. 18
-1-
Zone 265
Zone 265, Map 1
Reference Star
Sigma Lib (20 Lib; HD 133216; SAO 183139)
Position: 1504-2517
Mag : 3.25
Spectrum : M3.5 III
Color : O
Assumed distance: 292 light years
Assumed luminosity (suns): 326
Notes:
This star is an infra-red source as well as an ultra-violet source.
Double Stars
Easy
h4727
Rating: 3 E
ADS 9488; HD 133131; SAO 183129
Position: 1504-2750
A
B
Magnitude
8.39
8.70
Separation PA
—
—
7.4 +
220 +?
Year
—
1991
Notes:
1834: 6.5 @ 36. 27 measurements. Quadrant reversal?
Observations:
C8 at 83x.
-2-
Spectra
G0
Colors
W
W
Zone 265
Bur 352
Rating: 3 E
ADS 9569; HD 135796; SAO 183349
Position: 1518-2700
A
B
Magnitude
8.10
10.01
Separation PA
—
—
14.3 +
66 -!
Year
—
1991
Spectra
K2 III
Colors
pY
R
Notes:
AB 1875: 10.0 @ 170. 18 measurements.
May be optical because Hipparcos gives different distances (191 and 65 light years).
Observations:
C8 at 83x.
Leavenworth 6
Rating: 4 E
ADS 9590; HD 136259; SAO 183391
Position: 1521-2701
A
B
Magnitude
7.72
10.30
Separation PA
—
—
16.3 +
29 +
Year
—
1966
Notes:
1880: 16.1 @ 28. 10 measurements.
Observations:
C8 at 104x. The position angle looks more like 45 than 29.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 6.48 miles.
Distance (LY): 255
Total luminosity (Suns): 4.7
-3-
Spectra
K0 III
Colors
O
W
Zone 265
Holden 24
Rating: 4 E
ADS 9614; HD 136761
Position: 1523-2601
A
B
Magnitude
10.13
10.15
Separation PA
—
—
4.2 +
276 -
Year
—
1994
Spectra
G5 V
Colors
W
W
Notes:
1881: 3.8 @ 277. 15 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches.
Separation: AB = 1,900 feet.
Distance (LY): 55
Total luminosity (Suns): 0.041
h4767
Rating: 4 E
HD 137131; SAO 183448
Position: 1525-2645
A
B
Magnitude
7.68
10.82
Separation PA
—
—
32.3 +
143 +
Year
—
1992
Notes:
1834: 30.0 @ 140. 10 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 1.20 inches.
Separation: AB = 26.7 miles.
-4-
Spectra
M1 III
Colors
Y
B
Zone 265
Distance (LY): 530
Total luminosity (Suns): 21
Comstock 3
Rating: 5 E
ADS 9615
Position: 1524-2549
A
B
Magnitude
10.09
10.70
Separation PA
—
—
6.1 =
14 =
Year
—
1966
Spectra
Colors
W
W
Notes:
1888: 6.1 @ 14. 7 measurements.
Observations:
C11 at 98x.
Distance (LY): 47
Total luminosity (Suns): 0.026
Moderate
Innes 537
Rating: 3 M
HD 136987; SAO 183438
Position: 1525-2545
A
B
Magnitude
8.50
11.40
Separation PA
—
—
15.2 +! 330 =
Year
—
1991
Notes:
1909: 6.0 @ 330. 4 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 54.3 inches.
Separation: AB = 10.6 miles.
-5-
Spectra
K5 III
Colors
yO
O
Zone 265
Distance (LY): 448
Total luminosity (Suns): 6.43
h4740
Rating: 5 M
ADS 9524
Position: 1510-2827
A
B
Magnitude
9.54
10.44
Separation PA
—
—
3.7 +
11 -
Year
—
1991
Spectra
G5:V
Colors
W
W
Notes:
1877: 3.0 @ 20. 10 measurements.
May be optical because Hipparcos gives different distances (410 and 17 light years).
Observations:
C11 at 98x.
Difficult
h4774
Bur 1114 (B); ADS 9659; HD 137798
Rating: 2 D
Position: 1529-2852
A
B
C
Magnitude
6.43
8.60
10.13
Separation
—
0.8 +
9.6 -
PA
—
317 8-
Year
—
1998
1991
Notes:
AB 1889: 0.7 @ 326. 21 measurements.
AC 1834: 10.0 @ 9. 13 measurements.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.25 inches.
Separation: AB = 1,270 feet; AC = 2.96 miles.
-6-
Spectra
F6 IV
Colors
W
W
W
Zone 265
Distance (LY): 198
Total luminosity (Suns): 9.61
Zone 265, Map 2
Reference Star
2 Lup (HD 135758; SAO 183346)
Position: 1518-3009
Mag : 4.34
Assumed distance: 308 light years
Spectrum : K1 III
Color : O
Assumed luminosity (suns): 144
Notes:
The primary is an infra-red source and a member of the Sco-Cen Association.
Double Stars
Easy
h4743
Rating: 3 E
HD 134614; SAO 206392
Position: 1512-3250
A
B
Magnitude
8.72
9.02
Separation PA
—
—
11.1 196 -
Year
—
1991
Spectra
A
A
Colors
W
W
Notes:
1837: 15.0 @ 200. 15 measurements.
The stars show similar proper motions, although Hipparcos gives different distances
(500 and 182 light years).
Observations:
C8 at 83x.
-7-
Zone 265
h4752
Rating: 4 E
HD 135619; SAO 206484
Position: 1517-3435
A
B
Magnitude
7.99
11.77
Separation PA
—
—
18.0 +
5-
Year
—
1991
Spectra
A2 IV
Colors
bW
W
Notes:
1834: 15.0 @ 8. 5 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches.
Separation: AB = 13.1 miles.
Distance (LY): 468
Total luminosity (Suns): 11.33
Howe 77
Rating: 4 E
HD 136549; SAO 206570
Position: 1522-3409
A
B
Magnitude
7.67
9.51
Separation PA
—
—
8.9 +
251 +
Year
—
1992
Spectra
A0 V
Colors
bW
?
Notes:
1876: 8.0 @ 250. 13 measurements.
May be optical because Hipparcos gives different distances (520 and 89 light years).
Observations:
C8 at 83x. It lies between two 9m stars.
-8-
Zone 265
Bos 1281
Rating: 5 E
HD 135997; SAO 206520
Position: 1519-3201
A
B
Magnitude
8.86
11.00
Separation PA
—
—
41.3 +
95 +
Year
—
1967
Spectra
A2 IV
Colors
W
?
Notes:
1911: 40.7 @ 94. 5 measurements.
B has a 12.90m companion at 3.8 @ 345 (1933).
Observations:
C8 at 104x.
Moderate
See 225
Rating: 5 M
HD 135827; SAO 206503
Position: 1518-3151
A
B
Magnitude
8.43
11.80
Separation PA
—
—
12.9 111 =
Notes:
1897: 13.9 @ 111. 3 measurements.
Observations:
C8 at 104x. Rich field to the SE.
-9-
Year
—
1900
Spectra
K0
Colors
Y
?
Zone 265
Deep Sky Objects
Moderate
NGC 5824
Position: 1504-3304
Type: Gc
Dimensions: 3'
Rating: 3 M
Class: 1
Magnitude: 9.3
Notes:
The brightest stars are 15.5m and the horizontal branch is 18.6m.
Discovered by E.E. Barnard in 1884.
Observations:
C8 at 104x. Bright center, but it fades off rapidly.
Model (where the Sun is a baseball):
Its diameter would be 25,560 miles.
Distance (LY): 104,400
Luminosity (suns): 165,000
- 10 -
Zone 265
Zone 265, Map 3
Reference Star
Phi 1 Lup (See 229; HD 136422; SAO 206552)
Position: 1522-3615
Mag : 3.57
Spectrum : K5 III
Color : O
Assumed distance: 326 light years
Assumed luminosity (suns): 310
Notes:
This star is an infra-red source and an ultra-violet source too.
Double Stars
Easy
h4755
Rating: 3 E
HD 135984
Position: 1520-3643
A
B
Magnitude
7.87
8.92
Separation PA
—
—
4.5 +
202 +
Year
—
1991
Notes:
1834: 3.0 @ 201. 14 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.70 inches.
Separation: AB = 3.51 miles.
Distance (LY): 500
Total luminosity (Suns): 17
- 11 -
Spectra
F0 V
Colors
W
W
Zone 265
Cordoba 271
Rating: 4 E
SAO 206463
Position: 1516-3710
A
B
Magnitude
7.71
8.60
Separation PA
—
—
21.2 196 -
Year
—
1991
Spectra
A2 V
A2 V
Colors
W
pB
Notes:
AB 1897: 21.9 @ 197. 11 measurements.
The stars show similar proper motions.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches; B = 8.40 inches.
Separation: AB = 4.36 miles.
Distance (LY): 132
Total luminosity (Suns): 1.6
Howe 76
Rating: 4 E
HD 136347; SAO 206543
Position: 1521-3813
A
B
Magnitude
6.57
9.10
Separation PA
—
—
5.7 +
121 -
Year
—
1991
Notes:
1876: 4.0 @ 130. 18 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.55 inches.
Separation: AB = 3.58 miles.
- 12 -
Spectra
A0
Colors
Y
O
Zone 265
Distance (LY): 403
Total luminosity (Suns): 32
h4724
Rating: 5 E
HD 132743; SAO 206218
Position: 1502-3656
A
B
Magnitude
7.95
10.22
Separation PA
—
—
15.3 +
226 -
Year
—
1967
Spectra
A3 V
Colors
W
?
Notes:
1834: 15.0 @ 234. 7 measurements.
The stars show similar proper motions, although Hipparcos gives different distances
(710 and 1,160 light years).
Observations:
C8 at 83x.
Moderate
Harvard 248
Rating: 5 M
HD 137432; SAO 206660
Position: 1527-3646
A
B
Magnitude
5.46
12.50
Separation PA
—
—
30.0
210
Year
—
1891
Notes:
1 measurement.
The primary is a shell star.
Observations:
C8 at 104x. Use averted vision to see B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.4 inches.
Separation: AB = 19.6 miles.
- 13 -
Spectra
B5 V
Colors
bW
W
Zone 265
Distance (LY): 419
Total luminosity (Suns): 88.14
Zone 265, Map 4
Reference Star
Upsilon Lib (39 Lib; Innes 1271; HD 139063; SAO 183619)
Position: 1537-2808
Mag : 3.60
Spectrum : K3 III
Color : O
Assumed distance: 195 light years
Assumed luminosity (suns): 17
Notes:
This star is an infra-red and ultra-violet source.
Double Stars
Easy
Bur 354
Rating: 3 E
ADS 9754; HD 140192; SAO 183731
Position: 1543-2525
A
B
Magnitude
7.11
9.29
Separation PA
—
—
5.7 289 +
Notes:
AB 1875: 6.0 @ 280. 24 measurements.
Observations:
C8 at 206x.
- 14 -
Year
—
1991
Spectra
F0 V
Colors
W
R
Zone 265
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.70 inches.
Separation: AB = 3.38 miles.
Distance (LY): 380
Total luminosity (Suns): 18.3
Moderate
2 Sco
Bur 36; ADS 9823; HD 142114; SAO 183896
Rating: 4 M
Position: 1554-2520
A
B
Magnitude
4.59
7.06
Separation PA
—
—
2.1 269 -
Year
—
1991
Spectra
B3 V
Colors
Y
O
Notes:
1855: 2.6 @ 278. 29 measurements. The orbit is almost edgewise to us.
This star is a member of the Sco OB2 Association.
Observations:
C8 at 206x. Amateur reports idicate (pB and pR), or (both O).
C8 at 206x. Split at 280x and noted colors of yW and pB this time around. The split
was suspected at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.6 inches.
Separation: AB = 1.42 miles.
Distance (LY): 434
Total luminosity (Suns): 214
Bur 121
Rating: 5 M
ADS 9733; HD 139519; SAO 183668
Position: 1540-2739
A
B
Magnitude
7.61
8.40
Separation PA
—
—
1.8 +
282 +
- 15 -
Year
—
1991
Spectra
A0
Colors
W
W
Zone 265
Notes:
1876: 1.7 @ 279. 25 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.97 inches.
Separation: AB = 1.13 miles.
Distance (LY): 405
Total luminosity (Suns): 12
Difficult
Rho Sco
5 Sco; See 251; ADS 9846; HD 142669; SAO 183957
Rating: 4 D
Position: 1557-2913
A
B
Magnitude
3.87
12.70
Separation PA
—
—
38.3 97 -
Year
—
1899
Spectra
B2 IV
Notes:
1897: 38.4 @ 98. 2 measurements.
This star is a member of the Sco OB2 Association.
Observations:
C8 at 104x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.2 inches.
Separation: AB = 24.4 miles.
Distance (LY): 409
Total luminosity (Suns): 368.11
- 16 -
Colors
W
B
Zone 265
Pi Sco
6 Sco; Bur 622; ADS 9862; HD 143018; SAO 183987
Rating: 4 D
Position: 1559-2607
A
B
Magnitude
2.89
10.63
Separation PA
—
—
49.2 129 -
Year
—
1977
Spectra
B1 V
B2 V
Colors
B
W
Notes:
1878: 50.0 @ 133. 7 measurements.
Star A is a spectroscopic binary with a 1.5701 day period. It is also an eclipsing
binary with equal components and a member of the Sco OB2 Association.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.8 inches; B = 13.2 inches.
Separation: AB = 35.2 miles; Aa = 8.50 inches.
Distance (LY): 459
Total luminosity (Suns): 1,171
- 17 -
Zone 265
Zone 265, Map 5
Double Stars
Easy
Xi Lup
Piazzi 4; HD 142629; SAO 207144
Rating: 1 E
Position: 1557-3358
A
B
Magnitude
5.14
5.59
Separation PA
—
—
10.3 49 -
Year
—
1991
Spectra
A3 V
B9 V
Colors
Y
Y
Notes:
1826: 11.7 @ 53. 33 measurements.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.10 inches; B = 4.20 inches .
Separation: AB = 3.19 miles.
Distance (LY): 199
Total luminosity (Suns): 47
Cordoba 272
Rating: 3 E
HD 140900; SAO 206974
Position: 1547-3237
A
B
Magnitude
8.61
10.32
Separation PA
—
—
10.9 56 =
Year
—
1991
Spectra
F5 V
Colors
yW
W
Notes:
1897: 11.1 @ 56. 8 measurements.
May be optical because Hipparcos gives different distances (321 and 419 light years).
Observations:
C8 at 104x.
- 18 -
Zone 265
h4821
Rating: 3 E
SAO 207166
Position: 1558-3158
A
B
Magnitude
8.61
9.00
Separation PA
—
—
19.3 +
325 =?
Year
—
1991
Spectra
Colors
pB
pO
Notes:
1836: 19.2 @ 145. 9 measurements. Quadrant reversal?
Observations:
C8 at 83x. Faint, but nice.
Faint, moderate field.
Distance (LY): 1,720
Total luminosity (Suns): 159
Argelander 28
Rating: 4 E
HD 139911; SAO 183710
Position: 1542-3009
A
B
C
D
Magnitude
7.68
9.86
10.82
10.69
Separation
—
35.0 35.6 -!
88.5 -
PA
—
24 +
331 +
323 +
Year
—
1985
1960
1969
Spectra
K0 III
Colors
Y
pB
?
yW
Notes:
AB 1880: 35.7 @ 23. 10 measurements. The stars show similar proper motions.
AC 1880: 60.0 @ 328. 3 measurements.
AD 1880: 90.0 @ 322. 5 measurements.
Observations:
C8 at 104x. Star C is very difficult.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 2.29 miles; AC = 2.33 miles; AD = 5.80 miles.
- 19 -
Zone 265
Distance (LY): 42
Total luminosity (Suns): 0.1537
Cordoba 189
Rating: 4 E
HD 142602; SAO 207141
Position: 1557-3426
A
B
Magnitude
8.96
10.02
Separation PA
—
—
23.4 +
37 =
Year
—
1991
Spectra
A2 V
K?
Colors
bW
?
Notes:
AB 1920: 21.8 @ 37. 8 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches; B = 38.4 inches.
Separation: AB = 52.2 miles.
Distance (LY): 1,430
Total luminosity (Suns): 61
Difficult
Howe 78
Rating: 5 D
SAO 206720
Position: 1532-3350
A
B
Magnitude
6.87
9.22
Separation PA
—
—
1.5 +
132 -
Notes:
1876: 1.2 @ 160. 18 measurements.
Observations:
C8 at 280x. Notched.
- 20 -
Year
—
1991
Spectra
A2 V
Colors
W
?
Zone 265
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches.
Separation: AB = 4,010 feet.
Distance (LY): 327
Total luminosity (Suns): 17
Zone 265, Map 6
Double Stars
Easy
Dunlop 192
Bos 2038; HD 140817; SAO 206968
Rating: 2 E
Position: 1547-3531
A
B
C
Magnitude
6.82
8.49
7.34
Separation
—
0.6 +
34.7 -
PA
—
63 +!
143 +
Year
—
1991
1991
Spectra
A0 V
Colors
W
B9 V
pO
Notes:
AB 1931: 0.3 @ 15. 9 measurements.
AC 1826: 35.0 @ 130. 19 measurements.
May be optical because Hipparcos gives different distances (430 and 386 light years).
Observations:
C8 at 83x. Very fine!
- 21 -
Zone 265
Difficult
Innes 89
Rating: 5 D
HD 139677; SAO 206867
Position: 1541-4000
A
B
Magnitude
6.51
7.90
Separation PA
—
—
1.4 +
163 +
Year
—
1991
Spectra
F5 V
Colors
Y
O
Notes:
1896: 1.0 @ 135. 19 measurements.Quadrant reversal?
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches.
Separation: AB = 3,800 feet.
Distance (LY): 334
Total luminosity (Suns): 28
Deep Sky Objects
Moderate
NGC 5986
Other Names: Dunlop 552
Rating: 4 M
Position: 1546-3747
Type: Gc
Dimensions: 4'
Class: 7
Magnitude: 7.1
Notes:
James Dunlop found this cluster on May 10, 1826.
The brightest stars are 13.2m and the horizontal branch is 16.5m.
Interstellar absorption sucks up about 0.8m here.
- 22 -
Zone 265
Observations:
C8 at 83x. Unresolved, but mottled. High power is not much help. A bright star to
the E (7.3m SAO 206991) is a nuisance.
Model (where the Sun is a baseball):
Its diameter would be 17,600 miles.
Distance (LY): 47,000
Luminosity (suns): 250,000
- 23 -
Zone 265
Zone 265 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
Xi Lup
1557-3358
1E
5
Dunlop 192
1547-3531
2E
6
h4727
1504-2750
3E
1
h4743
1512-3250
3E
2
Bur 352
1518-2700
3E
1
h4755
1520-3643
3E
3
Bur 354
1543-2525
3E
4
Cordoba 272
1547-3237
3E
5
h4821
1558-3158
3E
5
Cordoba 271
1516-3710
4E
3
h4752
1517-3435
4E
2
Leavenworth 6
1521-2701
4E
1
Howe 76
1521-3813
4E
3
Howe 77
1522-3409
4E
2
Holden 24
1523-2601
4E
1
h4767
1525-2645
4E
1
Argelander 28
1542-3009
4E
5
Cordoba 189
1557-3426
4E
5
h4724
1502-3656
5E
3
Bos 1281
1519-3201
5E
2
Comstock 3
1524-2549
5E
1
Innes 537
1525-2545
3M
1
Component
A
B
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
A
B
A
B
A
B
A
B
C
D
A
B
A
B
A
B
A
B
A
B
- 24 -
Mag
5.14
5.59
6.82
8.49
7.34
8.39
8.70
8.72
9.02
8.10
10.01
7.87
8.92
7.11
9.29
8.61
10.32
8.61
9.00
7.71
8.60
7.99
11.77
7.72
10.30
6.57
9.10
7.67
9.51
10.13
10.15
7.68
10.82
7.68
9.86
10.82
10.69
8.96
10.02
7.95
10.22
8.86
11.00
10.09
10.70
8.50
11.40
Separation
—
10.3 —
0.6 +
34.7 —
7.4 +
—
11.1 —
14.3 +
—
4.5 +
—
5.7 —
10.9 —
19.3 +
—
21.2 —
18.0 +
—
16.3 +
—
5.7 +
—
8.9 +
—
4.2 +
—
32.3 +
—
35.0 35.6 -!
88.5 —
23.4 +
—
15.3 +
—
41.3 +
—
6.1 =
—
15.2 +!
PA
—
49 —
63 +!
34.7 —
220 +?
—
196 —
66 -!
—
202 +
—
289 +
—
56 =
—
325 =?
—
196 —
5—
29 +
—
121 —
251 +
—
276 —
143 +
—
24 +
35.6 -!
88.5 —
37 =
—
226 —
95 +
—
14 =
—
330 =
Zone 265
Designation
Position
Rating
Map
2 Sco
1554-2520
4M
4
h4740
1510-2827
5M
1
See 225
1518-3151
5M
2
Harvard 248
1527-3646
5M
3
Bur 121
1540-2739
5M
4
h4774
1529-2852
2D
1
Rho Sco
1557-2913
4D
4
Pi Sco
1559-2607
4D
4
Howe 78
1532-3350
5D
5
Innes 89
1541-4000
5D
6
Component
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
Mag
4.59
7.06
9.54
10.44
8.43
11.80
5.46
12.50
7.61
8.40
6.43
8.60
10.13
3.87
12.70
2.89
10.63
6.87
9.22
6.51
7.90
Separation
—
2.1 —
3.7 +
—
12.9 —
30.0
—
1.8 +
—
0.8 +
9.6 —
38.3 —
49.2 —
1.5 +
—
1.4 +
PA
—
269 —
11 —
111 =
—
210
—
282 +
—
317 9.6 —
97 —
129 —
132 —
163 +
Deep Space Objects
Object
NGC 5824
NGC 5986
Position
1504-3304
1546-3747
Rating
3M
4M
Map
2
6
Type
Gc (1)
Gc (7)
- 25 -
Specifications
Surface
Mag
Br
9.3
7.1
Population