Zone 258, Master Map
Hydra
ρ
M93
κ
η
γ
f
ο
c
-28°00'
δ
-26°00'
ξ
-24°00'
Normal View
Zone Master, Normal View, 10 deg FOV
g
α
-32°00'
Pyxis
d
-34°00'
ε
-30°00'
ζ
e
-38°00'
h
-36°00'
β
Vela
ζ
09h 28m 09h 20m 09h 12m
08h 56m 08h 48m 08h 40m 08h 32m
08h 16m 08h 08m 08h 00m
Puppis
07h 44m 07h 36m 07h 28m
Zone 258, Map 1
Normal Image
-25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-26°00'
IC 2311
NGC 2566
Bos 756
h2449
Ruprecht 53
Stone 18
-27°00'
Haffner 21
Dunlop 61
Howe 22
NGC 2559
Bur 202
-28°00'
h4037
NGC 2527
Innes 784
h4088
Collinder 187
Ruprecht 50
NGC 2587
Olivier 30
h4024
NGC 2571
NGC 2533
08h 30m
08h 25m
08h 20m
08h 15m
08h 10m
Innes 788
08h 05m
08h 00m
-29°00'
Bos 1086
Zone 258, Map 1
Mirror Image
-25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
IC 2311
-26°00'
NGC 2566
Bos 756
h2449
-27°00'
Haffner 21
Ruprecht 53
Dunlop 61 Stone 18
Howe 22
NGC 2559
Bur 202
-28°00'
h4037
NGC 2527
Bos 1086
-29°00'
Innes 784
h4088
Collinder 187
Olivier 30
h4024
NGC 2587
Ruprecht 50
NGC 2571
NGC 2533
Innes 788
08h 00m
08h 05m
08h 10m
08h 15m
08h 20m
08h 25m
08h 30m
Zone 258, Map 2
Normal Image
NGC 2533
-30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Innes 788
NGC 2580
-31°00'
NGC 2567
Bur 454
LDS 201
-32°00'
Harvard 201
h4035
-33°00'
Ruprecht 55
-34°00'
h4046
08h 30m
Gilliss 96
08h 25m
08h 20m
08h 15m
08h 10m
08h 05m
08h 00m
Zone 258, Map 2
Mirror Image
-30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Innes 788
NGC 2580
-31°00'
NGC 2567
Bur 454
LDS 201
-32°00'
Harvard 201
h4035
-33°00'
Ruprecht 55
-34°00'
h4046
08h 00m
08h 05m
08h 10m
08h 15m
08h 20m
08h 25m
Gilliss 96
08h 30m
Zone 258, Map 3
Normal Image
-35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-36°00'
Gilliss 96
Dunlop 67
h4106
-37°00'
Pyxis
h4063
Vela
-39°00'
-38°00'
NGC 2546
h4093
ζ
08h 30m
08h 25m
08h 20m
08h 15m
08h 10m
08h 05m
08h 00m
Zone 258, Map 3
Mirror Image
-35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-36°00'
Gilliss 96
Dunlop 67
h4063
-37°00'
Pyxis
Vela
-39°00'
-38°00'
NGC 2546
h4093
ζ
08h 00m
08h 05m
08h 10m
08h 15m
08h 20m
08h 25m
08h 30m
Zone 258, Map 4
Normal Image
-25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Bos 161
Bur 206
-26°00'
Innes 1128
h2475
η
-27°00'
South 569
γ
Gamma Pyx
-28°00'
δ
-29°00'
USNO 3
Harvard 119
h2481
ζ Zeta Pyx
Cordoba 77
09h 00m
08h 55m
NGC 2627
08h 50m
08h 45m
08h 40m
08h 35m
08h 30m
Zone 258, Map 4
Mirror Image
-25°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Bos 161
Bur 206
-26°00'
Innes 1128
h2475
South 569
-27°00'
η
Gamma Pyx
δ
-28°00'
γ
Harvard 119
h2481
ζ
Zeta Pyx
Cordoba 77
NGC 2627
08h 30m
08h 35m
08h 40m
08h 45m
08h 50m
08h 55m
09h 00m
-29°00'
USNO 3
Zone 258, Map 5
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Cordoba 77
-32°00'
-31°00'
-30°00'
NGC 2627
Stone 61
-33°00'
NGC 2658
-34°00'
α
Gilliss 101
09h 00m
08h 55m
08h 50m
08h 45m
08h 40m
08h 35m
08h 30m
Zone 258, Map 5
Mirror Image
Cordoba 77
-32°00'
-31°00'
NGC 2627
-30°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Stone 61
-33°00'
NGC 2658
-34°00'
α
Gilliss 101
Gilliss
96
08h 30m
08h 35m
08h 40m
08h 45m
08h 50m
08h 55m
09h 00m
Zone 258, Map 6
Normal Image
-35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Beta Pyx
-36°00'
β
Pyxis
-37°00'
h4106
-39°00'
-38°00'
Vela
09h 00m
08h 55m
08h 50m
08h 45m
08h 40m
08h 35m
08h 30m
Zone 258, Map 6
Mirror Image
-35°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Beta Pyx
-36°00'
β
-37°00'
h4106
-39°00'
-38°00'
Vela
h4093
08h 30m
08h 35m
08h 40m
08h 45m
08h 50m
08h 55m
09h 00m
Zone 258
2 Reference Stars, 31 Double Stars, 14 Open Clusters,
3 Galaxies
B
Beta Pyx............................................... 29
Bos 161 ................................................ 23
Bos 756 .................................................. 5
Bur 202 .................................................. 4
Bur 206 ................................................ 25
Bur 454 ................................................ 15
h4088 ..................................................... 7
h4093 ................................................... 19
h4106 ................................................... 29
Haffner 21 ............................................ 11
Harvard 119 ......................................... 24
Harvard 201 ......................................... 15
Howe 22................................................. 6
C
I
Collinder 187 ....................................... 10
Cordoba 77 .......................................... 23
IC 2311 ................................................ 12
Innes 1128............................................ 26
D
L
Dunlop 61 .............................................. 4
Dunlop 67 ............................................ 18
LDS 201............................................... 14
N
G
NGC 2527 .............................................. 8
NGC 2533 ............................................ 10
NGC 2546 ............................................ 20
NGC 2559 ............................................ 11
NGC 2566 ............................................ 12
NGC 2567 ............................................ 16
NGC 2571 .............................................. 9
NGC 2580 ............................................ 17
NGC 2587 ............................................ 10
NGC 2627 ............................................ 26
NGC 2658 ............................................ 28
Gamma Pyx ......................................... 21
Gilliss 101............................................ 27
Gilliss 96.............................................. 19
H
h2449 ..................................................... 5
h2475 ................................................... 24
h2481 ................................................... 25
h4024 ..................................................... 3
h4035 ................................................... 13
h4037 ..................................................... 3
h4046 ................................................... 13
h4063 ................................................... 18
R
Ruprecht 50............................................ 9
-1-
Zone 258
Ruprecht 53............................................ 8
U
S
USNO 3................................................ 22
South 569............................................. 21
Stone 18 ................................................. 6
Stone 61 ............................................... 27
Z
Zeta Pyx ............................................... 22
-2-
Zone 258
Zone 258, Map 1
Double Stars
Easy
h4037
Bur 203; ADS 6544; HD 66454
Rating: 1 E
Position: 0803-2733
A
B
C
Magnitude
6.81
8.29
9.16
Separation
—
7.2 63.6 -
PA
—
244 +
74 -
Year
—
1991
1954
Spectra
K1 IV
Colors
Y
No
W
Notes:
AB 1835: 12.0 @ 238. 19 measurements. May be optical because Hipparcos gives
different distances (1,050 and 680 light years).
AC 1874: 64 @ 79. 6 measurements.
Observations:
C8 at 104x.
h4024
Rating: 3 E
ADS 6515; HD 65945; SAO 174958
Position: 0800-2931
A
B
Magnitude
7.93
9.01
Separation PA
—
—
10.1 83 =
Notes:
1836: 12.0 @ 83. 10 measurements.
Observations:
C8 at 104x. Moderate field.
-3-
Year
—
1991
Spectra
G5 III
Colors
Y
B
Zone 258
Bur 202
Rating: 4 E
ADS 6535; HD 66306; SAO 175018
Position: 0802-2713
A
B
C
Magnitude
6.59
10.19
11.76
Separation
—
7.6 +
29.9 +!
PA
—
161 240 -
Year
—
1991
1916
Spectra
B9 II
Colors
W
?
?
Notes:
AB 1874: 6.0 @ 162. 19 measurements.
AC 1874: 15.0 @ 248. 3 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.2 inches.
Separation: AB = 65.6 miles; AC = 258 miles.
Distance (LY): 5,530
Total luminosity (Suns): 5,980
Dunlop 61
Bos 148; ADS 6601; HD 67409; SAO 175196
Rating: 4 E
Position: 0807-2707
A
B
Magnitude
7.06
9.02
Separation PA
—
—
69.6 35 -
Notes:
AB 1896: 71.2 @ 36. 8 measurements.
Observations:
C8 at 83x.
-4-
Year
—
1991
Spectra
B7 III
K0
Colors
W
dO!
Zone 258
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches; B = 25.8 inches.
Separation: AB = 1,184 miles.
Distance (LY): 10,900
Total luminosity (Suns): 15100
h2449
Position: 0827-2642
A
B
Magnitude
10.17
10.81
Rating: 4 E
Separation PA
—
—
11.4 199 -
Year
—
1991
Spectra
G0
Colors
W
W
Notes:
1831: 7.0 @ 200. 5 measurements.
Observations:
C11 at 98x.
Moderate
Bos 756
Rating: 5 M
HD 67884; SAO 175270
Position: 0809-2614
A
B
Magnitude
8.68
11.00
Separation PA
—
—
4.2 176 =
Year
—
1960
Notes:
1927: 4.3 @ 176. 5 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 2.40 inches.
Separation: AB = 3,432 feet.
-5-
Spectra
K1 III
Colors
Y!
O
Zone 258
Distance (LY): 100
Total luminosity (Suns): 0.30
Stone 18
Rating: 5 M
ADS 6636
Position: 0810-2708
A
B
Magnitude
8.81
9.36
Separation PA
—
—
3.4 =
261 -
Year
—
1991
Spectra
A0 V
Colors
W
W
Notes:
1876: 3.4 @ 262. 14 measurements.
Observations:
C8 at 280x. Very, very faint.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 1.02 miles.
Distance (LY): 194
Total luminosity (Suns): 1.7
Howe 22
Rossiter 1386 (B); ADS 6729
Rating: 5 M
Position: 0817-2716
A
B
Magnitude
9.55
9.95
Separation PA
—
—
3.4 +
299 +?
Year
—
1991
Notes:
1877: 3.4 @ 115. 11 measurements. Quadrant reversal?
Observations:
C11 at 98x.
-6-
Spectra
F5 V
Colors
W
W
Zone 258
Difficult
h4088
Rating: 5 D
ADS 6794; HD 70963; SAO 175743
Position: 0824-2858
A
B
C
Magnitude
6.64
12.00
12.00
Separation
—
26.9 +
9.9
PA
—
285 242
Year
—
1920
1898
Notes:
AB 1837: 25.0 @ 290. 3 measurements.
AC 1 measurement.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.0 inches.
Separation: AB = 29.0 miles; AC = 10.7 miles.
Distance (LY): 690
Total luminosity (Suns): 83
-7-
Spectra
B9 IV
Colors
W
W?
W?
Zone 258
Deep Sky Objects
Easy
NGC 2527
Rating: 3 E
Other Names: Collinder 174, H VIII 30
Astronomical League Program: Herschel 400 Club, Binocular Deep Sky Club
Position: 0805-2810
Type: Oc
Dimensions: 22'
Class: II 2m
Cluster population: 60
Magnitude: 6.5
Notes:
It is 1 billion years old and lies 28,500 light years from the galactic center and 60 light
years above the galactic plane.
The brightest star is 8.6m (200 times brighter than the Sun).
Observations:
C8 at 104x. Note the two parallel doglegs, and three 9m stars on the SE side, in a
straight line. The cluster is round, bright and loose. Very rich field.
Model (where the Sun is a baseball):
Its diameter would be 4,120 miles with stars 525 miles apart.
Distance (LY): 1,960
Luminosity (suns): 750
Ruprecht 53
Position: 0811-2701
Type: Oc
Dimensions: 18'
Rating: 5 E
Class: IV 2 p
Cluster population: 40
Magnitude: 10.0
Notes:
The cluster is 389 million years old.
Observations:
C11 at 98x. Very loose and poor group with not much of a center. I counted 14 stars
on a hazy night with 12-day old moonlight.
Distance (LY): 5,540
Total luminosity (Suns): 240
-8-
Zone 258
Moderate
Ruprecht 50
Position: 0803-2923
Type: OC
Cluster population: 12
Rating: 4 M
Class: II2mb
Dimensions: 3.5'
Observations:
C11 at 98x. Small, triangular group of eight stars with a wide spread in magnitude.
Very poor object.
NGC 2571
Rating: 4 M
Other Names: Collinder 181, H VI 39
Astronomical League Program: Herschel 400 Club, Binocular Deep Sky Club
Position: 0819-2944
Type: Oc
Dimensions: 13'
Class: II 3m
Cluster population: 30
Magnitude: 7.0
Notes:
It is 31 million years old and lies 32,000 light years from the galactic center and 250
light years above the galactic plane.
The youngest stars are B8 types. The brightest star is 8.8m (1,100 times brighter than
the Sun).
Observations:
C8 at 104x. This cluster is faint, rich and round, and has many doubles. Note the
wide arc of faint stars about 15-20 min N. Rich field.
Model (where the Sun is a baseball):
Its diameter would be 8,400 miles with stars 1,350 miles apart.
Distance (LY): 4,370
Luminosity (suns): 2,370
-9-
Zone 258
NGC 2533
Other Names: Collinder 175
Rating: 5 M
Position: 0807-2954
Type: Oc
Dimensions: 3.5'
Class: II 2r
Cluster population: 60
Magnitude: 7.6
Notes:
It is 752 million years old and lies 29,600 light years from the galactic center and 100
light years above the galactic plane.
The brightest star is 9m (600 times brighter than the Sun).
Observations:
C8 at 104x. Very faint and round. Note the 7m pair 15 min NW.
Model (where the Sun is a baseball):
Its diameter would be 1,820 miles with stars 230 miles apart.
Distance (LY): 11,000
Luminosity (suns): 8,600
Collinder 187
Position: 0824-2909
Type: Oc
Dimensions: 7'
Rating: 5 M
Class: III 1 p
Cluster population: 20
Magnitude: 9.6
Observations:
C11 at 193x. I counted only six stars in a double chevron on a hazy night with 12-day
old moonlight.
NGC 2587
Other Names: Collinder 184
Rating: 5 M
Position: 0824-2930
Type: Oc
Dimensions: 9'
Class: III 2m
Cluster population: 40
- 10 -
Magnitude: 9.2
Zone 258
Observations:
C8 at 104x. It looks nebulous, even with averted vision.
Difficult
Haffner 21
Position: 0801-2710
Type: Oc
Dimensions: 1.1'
Rating: 4 D
Class: II 1p
Cluster population: 20
Magnitude: 10.3
Notes:
The brightest star is 12.1m.
Observations:
C8 at 280x. Six extremely faint stars in a tight knot around an 9m star.
Distance (LY): 9,620
Total luminosity (Suns): 550
NGC 2559
Other Names: UGC 4458, H III 234
Rating: 4 D
Position: 0817-2727
Type: Gal
Surface brightness: 12.8
Class: SB(s)bc pec:
Dimensions: 3.7' x 1.7'
Magnitude: 10.9
PA: 6
Notes:
This galaxy produced supernova 2002hc (type II).
Observations:
C11 at 193x. In hazy skies lit by a 12 day old moon, it showed up as a fairly bright
fuzzy nucleus but no halo. An 11m star is 3 min E.
Distance (LY): 59,000,000
Radial velocity (km/sec): +1,561
Total luminosity (Suns): 11,900,000,000
- 11 -
Zone 258
NGC 2566
Other Names: PGC 23303, H III 288
Rating: 5 D
Position: 0819-2530
Type: Gal
Surface brightness: 13.1
Class: (R')SB(r)ab
Dimensions: 3.4' x 2.3'
Magnitude: 11.0
PA: 110
Observations:
C11 at 193x. Very faint with either a starlike nucleus or a 13m foreground star over
it.
Distance (LY): 62,000,000
Radial velocity (km/sec): +1,637
Total luminosity (Suns): 12,000,000,000
IC 2311
Other Names: ESO 495-G002
Rating: 5 D
Position: 0819-2522
Type: Gal
Surface brightness: 13.0
Class: E0
Dimensions: 2.1' x 1.9'
Magnitude: 11.5
Observations:
C11 at 98x. Fuzzy star with a moderately bright center. There were five 13m-14m
stars in the field.
Distance (LY): 98,000,000
Total luminosity (Suns): 18,900,000,000
- 12 -
Zone 258
Zone 258, Map 2
Double Stars
Easy
h4035
Rating: 3 E
HD 66598; SAO 198743
Position: 0803-3228
A
B
Magnitude
5.83
8.92
Separation PA
—
—
35.2 +
135 +
Year
—
1967
Spectra
K2 III
Colors
Y
B
Notes:
1835: 30.0 @ 132. 8 measurements.
The primary is an infra-red source.
Hipparcos/Tycho mission data show different distances for these stars (520 and 86
light years); they may be optical. The stars have a small difference in proper motion.
Observations:
C8 at 65x.
h4046
Innes 189; HD 67243; SAO 198791
Rating: 3 E
Position: 0806-3334
A
B
C
Magnitude
6.15
8.66
11.13
Separation
—
21.8 +
27.8 -
PA
—
88 +
58 =
Year
—
1993
1919
Spectra
G5 Ib
B3 III
Colors
W
V
?
Notes:
AB 1837: 20.0 @ 85. 12 measurements. The stars show similar proper motions.
AC 1903: 27.9 @ 58. 2 measurements.
- 13 -
Zone 258
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches; B = 13.2 inches.
Separation: AB = 116 miles; AC = 148 miles.
Distance (LY): 3,400
Total luminosity (Suns): 3,436
LDS 201
Bos 2164 (C); HD 66791; SAO 198755
Rating: 5 E
Position: 0804-3133
A
B
C
D
CD
Magnitude
8.72
9.69
10.83
10.90
Separation
—
47.9 +
60.0
PA
—
237 =
270
Year
—
1991
1991
4.1 -
60 +
1983
Spectra
G3 V
Notes:
AB 1911: 47.7 @ 237. 4 measurements.
AC 1 measurement.
CD 1913: 4.6 @ 59. 4 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 = 3.39 inches.
Separation: AB = 19.2 miles; AC = 24.1 miles; CD = 1.64 miles.
Distance (LY): 257
Total luminosity (Suns): 2.7
- 14 -
Colors
Y
W
?
No
Zone 258
Moderate
Bur 454
Rating: 4 M
HD 69445; SAO 199010
Position: 0816-3056
A
B
C
Magnitude
8.11
8.61
14.00
Separation
—
1.9 19.1
PA
—
2288
Year
—
1997
1898
Spectra
G5 III
Colors
O
B
No
Notes:
AB 1877: 2 @ 19. 22 measurements.
AC 1 measurement.
Observations:
C8 at 280x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39 inches.
Separation: AB = 1.03 miles; AC = 10.4 miles.
Distance (LY): 349
Total luminosity (Suns): 32
Difficult
Harvard 201
Rating: 5 D
HD 68978; SAO 198958
Position: 0814-3144
A
B
C
Magnitude
6.75
12.10
13.09
Separation
—
14.8 +
18.0
PA
—
324 280
Notes:
AB 1900: 12.0 @ 355. 2 measurements.
AC 1 measurement.
- 15 -
Year
—
1966
1900
Spectra
G2 V
Colors
yW
?
W
Zone 258
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.30 inches.
Separation: AB = 2.03 miles; AC = 2.47 miles.
Distance (LY): 88
Total luminosity (Suns): 1.3
Deep Sky Objects
Moderate
NGC 2567
Other Names: Melotte 86; Collinder 180; Raab 73, H VII 64
Astronomical League Program: Herschel 400 Club
Rating: 4 M
Position: 0819-3038
Type: Oc
Dimensions: 10'
Class: II 2m
Cluster population: 50
Magnitude: 7.4
Notes:
It is 68 million years old and lies 30,000 light years from the galactic center and 280
light years above the galactic plane. Over 115 stars are members of this group.
The brightest star is 10m (240 times brighter than the Sun).
Observations:
C8 at 104x. This cluster is delicate and requires averted vision. A nearby 9m star is
bothersome. It almost gets lost in the rich field. A chain of 9m stars (5 in number) runs
N-S and nearly cuts the group in half.
Model (where the Sun is a baseball):
Its diameter would be 5,240 miles with stars 700 miles apart.
Distance (LY): 5,470
Luminosity (suns): 2,570
- 16 -
Zone 258
NGC 2580
Position: 0822-3019
Type: Oc
Dimensions: 9'
Rating: 5 M
Class: II 2m
Cluster population: 50
Magnitude: 9.7
Notes:
Its age may be 158 million years.
Observations:
C8 at 104x. It is small and faint, with a trapezoidal center.
Distance (LY): 13,000
Total luminosity (Suns): 1,750
Difficult
Ruprecht 55
Position: 0812-3236
Type: Oc
Dimensions: 17.0'
Rating: 5 D
Class: IV 2p
Cluster population: 12
Magnitude: 7.8
Notes:
Asterism? If not, its age may be 7 million years.
The brightest star is 8.6m.
Observations:
C8 at 83x. A very poor group; without a list, you'd not know it was an open cluster!
Distance (LY): 16,000
Total luminosity (Suns): 15,200
- 17 -
Zone 258
Zone 258, Map 3
Double Stars
Easy
Dunlop 67
OS Pup; HD 69081; SAO 198969
Rating: 3 E
Position: 0814-3619
A
B
Magnitude
5.09
6.11
Separation PA
—
—
66.7 176 +
Year
—
1991
Spectra
B3 IV
B2 IV
Colors
W
W
Notes:
AB 1837: 67.5 @ 175. 18 measurements.
The primary rotates at 213 km/sec. The secondary is a spectroscopic binary.
Both stars are part of the Puppis OB3 Association.
May be optical because Hipparcos gives different distances (1,180 and 1,480 light
years).
Observations:
C8 at 104x.
h4063
Rating: 3 E
HD 69402; SAO 199000
Position: 0815-3722
A
B
Magnitude
7.42
9.61
Separation PA
—
—
16.2 352 +
Notes:
1835: 20.0 @ 346. 11 measurements.
Star A is a spectroscopic binary.
The stars have different proper motions.
- 18 -
Year
—
1991
Spectra
B4 V
Colors
W
pO
Zone 258
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.0 inches.
Separation: AB = 21.7 miles.
Distance (LY): 860
Total luminosity (Suns): 68
h4093
NO Pup; Bur 1605; HD 71488; SAO 199222
Rating: 3 E
Position: 0826-3904
A
B
Magnitude
6.07
6.83
Separation PA
—
—
8.1 124 +
Year
—
1991
Spectra
A0 IV
A0
Colors
W
W
Notes:
1835: 15.0 @ 122. 27 measurements.
The stars have different proper motions.
The primary is an Algol system.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.7 inches; B = 5.66 inches.
Separation: AB = 7.71 miles.
Distance (LY): 610
Total luminosity (Suns): 140
Gilliss 96
Rating: 4 E
HD 71801; SAO 199260
Position: 0828-3507
A
B
Magnitude
5.75
9.69
Separation PA
—
—
24.8 145 -
- 19 -
Year
—
1985
Spectra
B3 V
Colors
W
?
Zone 258
Notes:
1851: 35.0 @ 149. 12 measurements.
Star A is a spectroscopic binary and rotates at 158 kps.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.6 inches.
Separation: AB = 38.7 miles.
Distance (LY): 1,000
Total luminosity (Suns): 408
Deep Sky Objects
Difficult
NGC 2546
Other Names: Collinder 178
Rating: 5 D
Position: 0812-3738
Type: Oc
Dimensions: 41'
Class: III 2m
Cluster population: 50
Magnitude: 6.3
Notes:
It is 75 million years old and the youngest stars are B0 types. The brightest star is
8.2m (440 times brighter than the Sun).
This cluster lies 28,700 light years from the galactic center and 110 light years below
the galactic plane.
Observations:
C8 at 83x. It's low latitude makes it a difficult object to see. It is large, coarse, and
triangular. A bright blue star lies at the N end.
Model (where the Sun is a baseball):
Its diameter would be 12,670 miles with stars 1,750 miles apart.
Distance (LY): 3,300
Luminosity (suns): 2,600
- 20 -
Zone 258
Zone 258, Map 4
Reference Star
Gamma Pyx (HD 75691; SAO 176559)
Position: 0851-2743
Mag : 4.01
Assumed distance: 209 light years
Spectrum : K3 III
Color : Y
Assumed luminosity (suns): 86
Notes:
This star is an infra-red source.
Double Stars
Easy
South 569
Bos 158; ADS 6847; HD 72136; SAO 175966
Rating: 3 E
Position: 0830-2602
A
B
Magnitude
7.65
9.35
Separation PA
—
—
24 336 -
Year
—
1964
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.5 inches.
Separation: AB = 6.40 miles.
Distance (LY): 171
Total luminosity (Suns): 2
- 21 -
Spectra
G0
Colors
Y
O
Zone 258
Zeta Pyx
h4120; ADS 6923; HD 73898; SAO 176253
Rating: 3 E
Position: 0840-2934
A
B
Magnitude
4.89
9.10
Separation PA
—
—
52.3 +! 61 +!
Year
—
1980
Spectra
G5 III
G0
Colors
yW
?
Notes:
1836: 42.5 @ 40. 8 measurements. The primary is an infra-red source. The stars
share common proper motion.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39 inches; B = 18.0 inches.
Separation: AB = 19.3 miles.
Distance (LY): 236
Total luminosity (Suns): 49
USNO 3
Rating: 3 E
HD 75198; SAO 176481
Position: 0848-2823
A
B
Magnitude
8.60
9.00
Separation PA
—
—
25.3 +
287 +
Year
—
1985
Spectra
F5 V
F5
Colors
W
W
Notes:
1877: 18.9 @ 286. 8 measurements. The stars share common proper motion.
Observations:
C8 at 83x.
- 22 -
Zone 258
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches; B = 13.8 inches.
Separation: AB = 5.01 miles.
Distance (LY): 127
Total luminosity (Suns): 0.8
Bos 161
Rating: 4 E
ADS 6904
Position: 0839-2502
A
B
Magnitude
9.19
10.68
Separation PA
—
—
8.3 +
317 +
Year
—
1969
Spectra
F6 IV/V
Colors
W
W
Notes:
1927: 8.2 @ 316. 5 measurements.
May be optical because Hipparcos gives different distances (10,870 and 170 light
years).
Observations:
C11 at 98x. This pair is the middle star of a five-star chain.
Cordoba 77
Rating: 4 E
ADS 7108; HD 76740; SAO 176741
Position: 0857-2951
A
B
Magnitude
8.13
8.34
Separation PA
—
—
10.2 +
202 +
Year
—
1991
Spectra
F5
Colors
yW
bW
Notes:
1920: 10.1 @ 200. 7 measurements.
Observations:
C8 at 104x. It is the E vertex of a triangle, with 8.7m SAO 176716 (NW) and 8.3m
SAO 176702 (SW).
C11 at 98x.
- 23 -
Zone 258
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.1 inches.
Separation: AB = 2.00 miles.
Distance (LY): 126
Total luminosity (Suns): 1.60
Moderate
Harvard 119
Rating: 5 M
ADS 6966
Position: 0844-2859
A
B
Magnitude
9.33
11.10
Separation PA
—
—
3.6 +
329 -!
Year
—
1965
Spectra
Colors
A3mA7-A W
W
Notes:
1870: 1.5 @ 20. 6 measurements.
Observations:
C11 at 98x.
h2475
Rating: 5 M
HD 76178; SAO 176651
Position: 0854-2601
A
B
Magnitude
8.77
11.74
Separation PA
—
—
20.4 +
235 =
Year
—
1932
Notes:
1831: 15.0 @ 235. 2 measurements.
The Tycho-2 Catalogue indicates a single star entry.
Observations:
C11 at 98x.
- 24 -
Spectra
K1 III
Colors
Y
W?
Zone 258
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 2.40 inches.
Separation: AB = 1.87 miles.
Distance (LY): 59
Total luminosity (Suns): 0.09
h2481
Rating: 5 M
ADS 7122; HD 76997; SAO 176777
Position: 0859-2905
A
B
Magnitude
9.32
12.10
Separation PA
—
—
7.8 +
276 -
Year
—
1965
Spectra
K2/3 III
Colors
Y
W
Notes:
1831: 6.0 @ 297. 4 measurements.
Observations:
C11 at 98x.
Difficult
Bur 206
Rating: 3 D
ADS 6887
Position: 0835-2507
A
B
Magnitude
7.53
8.57
Separation PA
—
—
1.9 277 -
Notes:
1877: 2.0 @ 281. 21 measurements.
Observations:
C8 at 280x.
- 25 -
Year
—
1991
Spectra
G0 III
Colors
Y
yO
Zone 258
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 32.4 inches.
Separation: AB = a few feet.
Distance (LY): 1.320
Total luminosity (Suns): 160
Innes 1128
Rating: 4 D
ADS 7101; HD 76606
Position: 0856-2528
A
B
Magnitude
9.23
9.55
Separation PA
—
—
1.4 +
12 =
Year
—
1991
Spectra
A3 V
Colors
W
W
Notes:
1917: 1.3 @ 12. 8 measurements.
Observations:
C11 at 634x.
Deep Sky Objects
Difficult
NGC 2627
Other Names: Melotte 87; Collinder 188; Raab 74, H VII 63
Astronomical League Program: Herschel 400 Club
Rating: 5 D
Position: 0837-2957
Type: Oc
Dimensions: 11'
Class: II 2r
Cluster population: 70
Notes:
The brightest star is 11m.
The cluster is 368 million years old.
- 26 -
Magnitude: 8.4
Zone 258
Observations:
C8 at 104x. It is faint, delicate, and does not magnify well. It is round and, under
high powers, displays a void stripe down the center. Moderate field.
Distance (LY): 6.630
Total luminosity (Suns): 1,500
Zone 258, Map 5
Double Stars
Easy
Gilliss 101
Rating: 2 E
HD 75199; SAO 199619
Position: 0847-3436
A
B
Magnitude
6.66
10.00
Separation PA
—
—
46.5 133 +
Year
—
1985
Spectra
K5 III
A2 IV
Colors
D!
B
Notes:
1852: 51.8 @ 131. 3 measurements.
The stars show similar proper motions, although Hipparcos gives different distances
(550 and 136 light years).
B has an 11.7m companion at 1.9 @ 272 (199).
Observations:
C8 at 104x.
Stone 61
Rating: 4 E
HD 74005; SAO 199492
Position: 0840-3210
A
B
Magnitude
8.10
9.34
Separation PA
—
—
4.6 =
203 +
- 27 -
Year
—
1992
Spectra
A0 V
Colors
W
W
Zone 258
Notes:
1877: 4.6 @ 202. 10 measurements.
Observations:
C8 at 206x. An 8.5m star lies 8 min SSW.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 11.5 miles.
Distance (LY): 1,600
Total luminosity (Suns): 135
Deep Sky Objects
Difficult
NGC 2658
Other Names: Melotte 90; Collinder 195; Raab 77
Rating: 5 D
Position: 0843-3239
Type: Oc
Dimensions: 12'
Class: I 2r
Cluster population: 80
Magnitude: 9.2
Notes:
The brightest star is 12m.
The cluster is 1.4 billion years old.
Observations:
C8 at 104x. It is very, very faint and takes high power to resolve.
Distance (LY): 6,590
Total luminosity (Suns): 710
- 28 -
Zone 258
Zone 258, Map 6
Reference Star
Beta Pyx (HD 74006; SAO 199490)
Position: 0840-3519
Mag : 3.97
Spectrum : G5 III
Color : Y
Notes:
Star A is a spectroscopic binary. It is also a member of the Sco-Cen Association.
Double Stars
Difficult
h4106
Luyten 223; HD 72435; SAO 199328
Rating: 5 D
Position: 0831-3642
A
B
C
Magnitude
7.72
9.70
10.36
Separation
—
4.3 -!
47.9 -
PA
—
305 +!
219 +
Year
—
1997
1952
Notes:
AB 1835: 18.0 @ 139. 21 measurements.
AC 1913: 48.4 @ 218. 4 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.0 inches.
Separation: AB = 1.36 miles; AC = 15.2 miles.
Distance (LY): 203
Total luminosity (Suns): 2.9
- 29 -
Spectra
K0 IV
Colors
Y
No
?
Zone 258
Zone 258 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
h4037
0803-2733
1E
1
Gilliss 101
0847-3436
2E
5
h4024
0800-2931
3E
1
h4035
0803-3228
3E
2
h4046
0806-3334
3E
2
Dunlop 67
0814-3619
3E
3
h4063
0815-3722
3E
3
h4093
0826-3904
3E
3
South 569
0830-2602
3E
4
Zeta Pyx
0840-2934
3E
4
USNO 3
0848-2823
3E
4
Bur 202
0802-2713
4E
1
Dunlop 61
0807-2707
4E
1
h2449
0827-2642
4E
1
Gilliss 96
0828-3507
4E
3
Bos 161
0839-2502
4E
4
Stone 61
0840-3210
4E
5
Cordoba 77
0857-2951
4E
4
LDS 201
0804-3133
5E
2
Bur 454
0816-3056
4M
Component
A
B
C
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
D
CD
A
B
C
2
- 30 -
Mag
6.81
8.29
9.16
6.66
10.00
7.93
9.01
5.83
8.92
6.15
8.66
11.13
5.09
6.11
7.42
9.61
6.07
6.83
7.65
9.35
4.89
9.10
8.60
9.00
6.59
10.19
11.76
7.06
9.02
10.17
10.81
5.75
9.69
9.19
10.68
8.10
9.34
8.13
8.34
8.72
9.69
10.83
10.90
8.11
8.61
14.00
Separation
—
7.2 63.6 —
46.5 —
10.1 —
35.2 +
—
21.8 +
27.8 —
66.7 —
16.2 —
8.1 —
24 —
52.3 +!
—
25.3 +
—
7.6 +
29.9 +!
—
69.6 —
11.4 —
24.8 —
8.3 +
—
4.6 =
—
10.2 +
—
47.9 +
60.0
PA
—
244 +
63.6 —
133 +
—
83 =
—
135 +
—
88 +
27.8 —
176 +
—
352 +
—
124 +
—
336 —
61 +!
—
287 +
—
161 29.9 +!
—
35 —
199 —
145 —
317 +
—
203 +
—
202 +
—
237 =
60.0
4.1 —
1.9 19.1
60 +
—
219.1
Zone 258
Designation
Position
Rating
Map
Bos 756
0809-2614
5M
1
Stone 18
0810-2708
5M
1
Howe 22
0817-2716
5M
1
Harvard 119
0844-2859
5M
4
h2475
0854-2601
5M
4
h2481
0859-2905
5M
4
Bur 206
0835-2507
3D
4
Innes 1128
0856-2528
4D
4
Harvard 201
0814-3144
5D
2
h4088
0824-2858
5D
1
h4106
0831-3642
5D
6
Component
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
C
A
B
C
Mag
8.68
11.00
8.81
9.36
9.55
9.95
9.33
11.10
8.77
11.74
9.32
12.10
7.53
8.57
9.23
9.55
6.75
12.10
13.09
6.64
12.00
12.00
7.72
9.70
10.36
Separation
—
4.2 —
3.4 =
—
3.4 +
—
3.6 +
—
20.4 +
—
7.8 +
—
1.9 —
1.4 +
—
14.8 +
18.0
—
26.9 +
9.9
—
4.3 -!
47.9 -
PA
—
176 =
—
261 —
299 +?
—
329 -!
—
235 =
—
276 —
277 —
12 =
—
324 18.0
—
285 9.9
—
305 +!
47.9 -
Deep Space Objects
Object
NGC 2527
Ruprecht 53
Ruprecht 50
NGC 2567
NGC 2571
NGC 2533
NGC 2580
NGC 2587
Collinder 187
Haffner 21
NGC 2559
Ruprecht 55
NGC 2546
NGC 2566
IC 2311
NGC 2627
NGC 2658
Position
0805-2810
0811-2701
0803-2923
0819-3038
0819-2944
0807-2954
0822-3019
0824-2930
0824-2909
0801-2710
0817-2727
0812-3236
0812-3738
0819-2530
0819-2522
0837-2957
0843-3239
Rating
3E
5E
4M
4M
4M
5M
5M
5M
5M
4D
4D
5D
5D
5D
5D
5D
5D
Map
1
1
1
2
1
1
2
1
1
1
1
2
3
1
1
4
5
Type
Oc (II 2m)
Oc (IV 2 p)
Oc (II2mb)
Oc (II 2m)
Oc (II 3m)
Oc (II 2r)
Oc (II 2m)
Oc (III 2m)
Oc (III 1 p)
Oc (II 1p)
Gal (SB(s)bc pec:)
Oc (IV 2p)
Oc (III 2m)
Gal ((R')SB(r)ab)
Gal (E0)
Oc (II 2r)
Oc (I 2r)
- 31 -
Specifications
Surface
Mag
Br
6.5
10.0
7.4
7.0
7.6
9.7
9.2
9.6
10.3
10.9
7.8
6.3
11.0
11.5
8.4
9.2
Population
60
40
12
50
30
60
50
40
20
20
12.8
12
50
13.1
13.0
70
80