Zone 233, Master Map
µ
c
f
ι
k
h
d
π
-22°00'
g
e
ο2
ο1
ξ
08h 00m
07h 52m
τ
ο
07h 44m
07h 36m
07h 28m
07h 20m
07h 12m
07h 04m
06h 56m
-24°00'
j
-20°00'
-18°00'
i
-16°00'
γ
-14°00'
Normal View
Zone Master, Normal View, 10 deg FOV
Zone 233, Map 1
Normal Image
-15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1011
STF 1057
γ
Gamma CMa
-16°00'
NGC 2360
A 3087
Aravamudan 32
Bur 329
Gallo 292
Wirtz 11
-17°00'
Skinner 4
Haffner 23
NGC 2358
-18°00'
Skinner 3
h3939
Aravamudan 184
PK 232-1.1
07h 18m
Bos 1969
Hipparcos 993
07h 12m
07h 06m
07h 00m
Zone 233, Map 1
Mirror Image
-15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1011
STF 1057
NGC 2360
Gamma CMa
-16°00'
γ
Bur 329
A 3087
Aravamudan 32
Skinner 4
Haffner 23
NGC 2358
-18°00'
Skinner 3
h3939
Hipparcos 993
07h 00m
07h 06m
07h 12m
-17°00'
Gallo 292
Wirtz 11
Bos 1969
07h 18m
Zone 233, Map 2
Normal Image
-18°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h3939
Aravamudan 184
PK 232-1.1
Hipparcos 993
-19°00'
Bos 1969
Tombaugh 1
h3933
-20°00'
Bos 2622
Harvard 101
Aravamudan 886
Bur 572
Innes 772
Ruprecht 11
Hough 344
Holden 87
-21°00'
Aravamudan 906
h2358
h3934
Innes 391
h3950
07h 18m
07h 12m
07h 06m
07h 00m
Zone 233, Map 2
Mirror Image
-18°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h3939
Hipparcos 993
-19°00'
Bos 1969
Bos 2622
Tombaugh 1
-20°00'
h3933
Harvard 101
Aravamudan 886
Ruprecht 11
Aravamudan 906
Innes 772
Hough 344
h2358
h3934
07h 00m
07h 06m
07h 12m
Innes 391
07h 18m
Holden 87
-21°00'
Bur 572
Zone 233, Map 3
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
See 74
-22°00'
h3934
Holden 87
Innes 391 NGC 2367
h3950
Innes 767
South 543
-23°00'
h3938
h3945
h3914
-24°00'
ο2
Omicron 2 CMa
Bur 331
NGC 2362 τ
Tau CMa
Bos 2138
07h 18m
07h 12m
07h 06m
07h 00m
Zone 233, Map 3
Mirror Image
Holden 87
NGC 2367 Innes 391
h3950
h3934
See 74
-22°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Innes 767
South 543
-23°00'
h3938
h3945
h3914
Omicron 2 CMa
-24°00'
ο2
Bur 331
Bos 122
Tau CMaτ
NGC 2362
07h 00m
07h 06m
07h 12m
Bos 2138
07h 18m
Zone 233, Map 4
Normal Image
-15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1104
Czernik 29
-16°00'
Haffner 10
NGC 2414
Holden 90 NGC 2428
Holden 89
NGC 2409
PK 232-1.1
-18°00'
-17°00'
Bochum 4
Stone 17
South 550
07h 42m
07h 36m
07h 30m
07h 24m
07h 18m
Zone 233, Map 4
Mirror Image
-15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1104
Haffner 10
Czernik 29
NGC 2414
-16°00'
NGC 2360
A 3087
NGC 2428
Holden 89
-17°00'
Bochum 4
-18°00'
NGC 2409
Aravamudan 184
PK 232-1.1
Stone 17
07h 18m
07h 24m
South 550
07h 30m
07h 36m
07h 42m
Zone 233, Map 5
Normal Image
-18°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
PK 232-1.1
Stone 17
-19°00'
South 550
NGC 2432
Ruprecht 16
See 84
-20°00'
Czernik 31
See enlargement,
next map.
Bos 201
NGC 2421
Argelander 17
Aravamudan 1381
-21°00'
NGC 2383
Bur 198
h3964
NGC 2384
Bur 199
Aravamudan 932
Bos 1974
h3973
Holden 87
NGC 2367 Innes 391
Hipparcos 1026
h3950
07h 42m
07h 36m
07h 30m
07h 24m
07h 18m
Zone 233, Map 5
Mirror Image
-18°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Aravamudan 184
PK 232-1.1
Stone 17
-19°00'
South 550
Ruprecht 16
See 84
-20°00'
Czernik 31
See enlargement,
next map.
Bos 201
NGC 2421
NGC 2383
h3964
NGC 2384
Argelander 17
h3973
Bur 198
Bur 199
-21°00'
Aravamudan 906
Aravamudan 932
Aravamudan 1381
Bos 1974
Holden 87
Innes 391 NGC 2367
Hipparcos 1026
07h 18m
07h 24m
07h 30m
07h 36m
07h 42m
Zone 233, Map 5a
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
Argelander 17
NGC 2383
Bur 198
h3964
NGC 2384
Bur 199
Aravamudan 932
Bos 1974
Zone 233, Map 5a
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
Argelander 17
NGC 2383
Bur 198
h3964
NGC 2384
Bur 199
Aravamudan 932
Bos 1974
Zone 233, Map 6
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Holden 87
Innes 391
NGC 2367
h3950
-22°00'
Bos 1974
Hipparcos 1026
-23°00'
Aravamudan 1692
H N 19
H N 19
Howe 18
Trumpler 7
-24°00'
Harvard 107
Aravamudan 2043
Trumpler 6 h5451a
Bur 331
NGC 2362 τ
07h 42m
07h 36m
07h 30m
07h 24m
07h 18m
Zone 233, Map 6
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Bos 1974
-22°00'
Holden 87
Innes 391
NGC 2367
h3950
Hipparcos 1026
-23°00'
Aravamudan 1692
H N 19
H N 19
Howe 18
h5451a
-24°00'
Harvard 107
Aravamudan 2043
Trumpler 7
Trumpler 6
Bur 331
τ
NGC 2362
07h 18m
07h 24m
07h 30m
07h 36m
07h 42m
Zone 233, Map 7
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 2438
-16°00'
NGC 2437
-15°00'
2 Pup
Ruprecht 151
-17°00'
Holden 90
A 3095
Aravamudan 206
h4015
Rossiter 2507
-18°00'
NGC 2479
NGC 2440
h4013
08h 00m
07h 54m
07h 48m
Hussey 709
07h 42m
Zone 233, Map 7
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
2 Pup
-15°00'
NGC 2437
-16°00'
NGC 2438
Ruprecht 151
NGC 2428
Holden 90
-17°00'
Holden 89
A 3095
NGC 2440
Hussey 709
07h 42m
-18°00'
NGC 2479
h4015
Rossiter 2507
h4013
07h 48m
07h 54m
08h 00m
Zone 233, Map 8
Normal Image
-18°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Hussey 709
Dawson 29
NGC 2509
NGC 2432
-19°00'
NGC 2440
h4013
Bos 1077
-20°00'
See 84
-21°00'
Ruprecht 34
NGC 2455
Aravamudan 1381
h4022
Bos 2159
08h 00m
Aravamudan 1411
07h 54m
07h 48m
07h 42m
Zone 233, Map 8
Mirror Image
-18°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Hussey 709
h4013
Dawson 29
NGC 2509
NGC 2432
-19°00'
NGC 2440
Bos 1077
-20°00'
See 84
Bos 201
-21°00'
Ruprecht 34
NGC 2455
Aravamudan 1381
h4022
Aravamudan 1411
07h 42m
07h 48m
07h 54m
Bos 2159
08h 00m
Zone 233, Map 9
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 2455
Bos 2159
Aravamudan 1411
h3995
-22°00'
h4022
NGC 2447
Aravamudan 2067
Aravamudan 2074 h4003
Aravamudan 2066
CPD 4
See 504
NGC 2482
ξ
Xi Pup
Cordoba 62
08h 00m
07h 54m
07h 48m
07h 42m
-24°00'
-23°00'
Bur 333
Zone 233, Map 9
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 2455
Aravamudan 1411
Bos 2159
-23°00'
h3995
-22°00'
h4022
Aravamudan 2067
CPD 4
See 504
-24°00'
NGC 2447
Aravamudan 2066
h4003 Aravamudan 2074
NGC 2482
Xi Pup ξ
Cordoba 62
07h 42m
07h 48m
07h 54m
08h 00m
Zone 233
3 Reference Stars, 70 Double Stars,
2 Planetary Nebulae, 27 Open Clusters
A
D
A 3095 ................................................. 45
Aravamudan 1381................................ 49
Aravamudan 1411................................ 56
Aravamudan 1692................................ 39
Aravamudan 2043................................ 37
Aravamudan 2066................................ 55
Aravamudan 2067................................ 54
Aravamudan 2074................................ 55
Aravamudan 32...................................... 6
Aravamudan 886.................................. 11
Aravamudan 906.................................. 13
Argelander 17 ...................................... 30
Dawson 29 ........................................... 49
G
Gamma CMa.......................................... 3
H
H N 19.................................................. 35
h2358 ................................................... 10
h3914 ................................................... 17
h3933 ................................................... 13
h3934 ................................................... 11
h3938 ................................................... 17
h3939 ..................................................... 5
h3945 ................................................... 16
h3950 ................................................... 18
h3964 ................................................... 26
h3973 ................................................... 29
h3995 ................................................... 53
h4003 ................................................... 55
h4013 ................................................... 44
h4015 ................................................... 43
h4022 ................................................... 52
h5451a.................................................. 38
Haffner 10 ............................................ 25
Haffner 23 .............................................. 9
Harvard 101 ......................................... 10
Harvard 107 ......................................... 36
Hipparcos 1026 .................................... 39
Hipparcos 993 ........................................ 7
Holden 87............................................. 35
Holden 89............................................. 22
B
Bochum 4............................................. 23
Bos 1077 .............................................. 50
Bos 1969 .............................................. 12
Bos 1974 .............................................. 31
Bos 201 ................................................ 29
Bos 2622 .............................................. 15
Bur 198 ................................................ 27
Bur 199 ................................................ 30
Bur 329 .................................................. 5
Bur 331 ................................................ 20
Bur 572 ................................................ 12
C
CPD 4 .................................................. 54
Czernik 29............................................ 24
Czernik 31............................................ 34
-1-
Zone 233
R
Holden 90 ............................................ 46
Hough 344 ........................................... 14
Howe 18............................................... 40
Hussey 709 .......................................... 45
Rossiter 2507 ....................................... 43
Ruprecht 11.......................................... 16
Ruprecht 151........................................ 48
Ruprecht 16.......................................... 33
Ruprecht 34.......................................... 51
I
Innes 391.............................................. 37
Innes 767.............................................. 21
Innes 772.............................................. 14
S
See 504................................................. 53
See 74................................................... 18
See 84................................................... 31
Skinner 3 ................................................ 4
Skinner 4 ................................................ 3
South 543 ............................................. 19
South 550 ............................................. 27
STF 1011................................................ 6
STF 1057................................................ 4
STF 1104.............................................. 22
Stone 17 ............................................... 28
N
NGC 2358.............................................. 9
NGC 2360.............................................. 8
NGC 2362............................................ 40
NGC 2367............................................ 41
NGC 2383............................................ 34
NGC 2384............................................ 32
NGC 2409............................................ 23
NGC 2414............................................ 24
NGC 2421............................................ 32
NGC 2428............................................ 25
NGC 2432............................................ 33
NGC 2440............................................ 47
NGC 2447............................................ 56
NGC 2455............................................ 51
NGC 2479............................................ 48
NGC 2482............................................ 58
T
Tau CMa .............................................. 19
Tombaugh 1 ......................................... 15
Trumpler 6 ........................................... 42
Trumpler 7 ........................................... 42
W
O
Wirtz 11 ................................................. 7
Omicron 2 CMa ................................... 16
X
P
Xi Pup .................................................. 52
PK 232-1.1........................................... 26
-2-
Zone 233
Zone 233, Map 1
Reference Star
Gamma CMa (43 CMa; Mekbuda, "the drawn-in paw"; HD 53244; SAO 152303)
Position: 0704-1538
Mag : 4.11
Spectrum : B8 II
Color : bW
Assumed distance: 402 light years
Assumed luminosity (suns): 290
Notes:
This star belongs to the Sco-Cen Association.
Double Stars
Easy
Skinner 4
Rating: 4 E
ADS 5776
Position: 0705-1638
A
B
Magnitude
8.94
10.13
Separation PA
—
—
4.4 337 =
Year
—
1992
Spectra
A9 IV
Notes:
1897: 4.5 @ 337. 7 measurements.
Observations:
C11 at 98x. Very nice field! It lies just S of a nice small diamond of stars.
-3-
Colors
W
O
Zone 233
STF 1057
Bur 575 (B); ADS 5592; HD 56012; SAO 152609
Rating: 4 E
Position: 0715-1529
A
B
C
Magnitude
8.04
8.17
9.83
Separation
—
0.4 15.7 +
PA
—
284 +!!
2=
Year
—
1998
1991
Spectra
F3 V
Colors
O
No
R
Notes:
AB 1878: 0.7 @ 199. 40 measurements. A premature orbit has been computed.
AC 1831: 15.3 @ 2. 12 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.80 inches.
Separation: AB = 1,003 feet; AC = 7.84 miles.
Distance (LY): 320
Total luminosity (Suns): 17
Skinner 3
Rating: 5 E
ADS 5734
Position: 0703-1747
A
B
Magnitude
9.27
9.86
Separation PA
—
—
5.8 +
276 +
Year
—
1954
Spectra
K0 III+
Colors
yO
W
Notes:
1897: 5.7 @ 275. 7 measurements. May be optical because Hipparcos gives different
distances (291 and 72 light years).
Observations:
C11 at 98x. A bright field lies off to the N.
-4-
Zone 233
Bur 329
Rating: 5 E
ADS 5837; HD 54764; SAO 152477
Position: 0710-1614
A
B
Magnitude
6.00
11.34
Separation PA
—
—
29.4 100 +
Year
—
1983
Spectra
B1 III
Colors
W
?
Notes:
AB 1880: 29.5 @ 98. 10 measurements.
Observations:
C8 at 83x.
h3939
Rating: 5 E
ADS 5916; HD 55887; SAO 152595
Position: 0714-1758
A
B
Magnitude
9.51
11.60
Separation PA
—
—
10.0 +
246 =
Year
—
1920
Notes:
1834: 8.0 @ 246. 7 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches.
Separation: AB = 11.2 miles.
Distance (LY): 720
Total luminosity (Suns): 7.4
-5-
Spectra
B7 III
Colors
W
W?
Zone 233
Moderate
STF 1011
Rating: 4 M
ADS 5695; HD 52482; SAO 152238
Position: 0701-1519
A
B
Magnitude
8.70
9.20
Separation PA
—
—
4.3 300 +
Year
—
1992
Spectra
A2 V
Colors
W
W
Notes:
1831: 4.5 @ 296. 12 measurements.
Observations:
C8 at 206x. It forms a triangle with two 8m stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches.
Separation: AB = 2.70 miles.
Distance (LY): 403
Total luminosity (Suns): 9
Aravamudan 32
Rating: 4 M
HD 55779; SAO 152585
Position: 0714-1620
A
B
Magnitude
8.41
12.60
Separation PA
—
—
8.5
240
Notes:
1 measurement.
Observations:
C11 at 98x.
-6-
Year
—
1915
Spectra
Colors
Y
O?
Zone 233
Wirtz 11
Gallo 292; ADS 5736; HD 53013; SAO 152285
Rating: 5 M
Position: 0703-1642
A
B
Magnitude
6.77
12.00
Separation PA
—
—
9.2 +
90 +
Year
—
1914
Spectra
K1 III
Colors
Y
B?
Notes:
1908: 8.7 @ 87. 2 measurements.
Observations:
C11 at 193x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 32.0 inches.
Separation: AB = 6.38 miles.
Distance (LY): 493
Total luminosity (Suns): 37
Hipparcos 993
Rating: 5 M
HD 54602; SAO 152459
Position: 0709-1816
A
B
Magnitude
8.68
11.87
Separation PA
—
—
14.5 155 -
Year
—
1991
Notes:
1915: 15.2 @ 157. 4 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.4 inches.
Separation: AB = 54.3 miles.
Distance (LY): 2,400
Total luminosity (Suns): 156
-7-
Spectra
B5 V
Colors
W
W
Zone 233
Deep Sky Objects
Easy
NGC 2360
Rating: 2 E
Other Names: Melotte 64; Collinder 134; Raab 51, H VII 12
Astronomical League Program: Caldwell Club, Herschel 400 Club, Binocular Deep Sky
Club
Position: 0718-1537
Type: Oc
Dimensions: 12'
Class: I 3r
Cluster population: 80
Magnitude: 7.2
Notes:
It is 20 light years in diameter and 1.3
billion years old, yet has some B8 stars!
The brightest star is 10.4m (170 times
brighter than the Sun).
It lies 30,000 light years from the
galactic center and 100 light years below
the galactic plane.
Observations:
C8 at 83x. Very nice! An arrowhead
pointed E, with a 9m star in the tip. A 6m
star (SAO 152641) lies 30 min W.
Model (where the Sun is a baseball):
Its diameter would be 6,290 miles with
stars 730 miles apart.
NGC 2360
Open cluster (I 3 r; 80 stars)
Observed with C-8 on 2/1/92
Magnification: 80x
Distance (LY): 6,150
Luminosity (suns): 3,200
-8-
Zone 233
Moderate
Haffner 23
Position: 0709-1657
Type: Oc
Cluster population: 40
Rating: 4 M
Class: III 2 m
Dimensions: 11'
Notes:
This cluster is 692 million years old.
Observations:
C11 at 98x. Faint (brightest star is 13m), scattered, not rich, not well-detached. It is
dominated by a small triangle at the center. I counted 18 stars in mediocre seeing (6 out
of 10).
Distance (LY) : 3,260
NGC 2358
Other Names: H VIII 45
Rating: 5 M
Position: 0717-1707
Type: Oc
Dimensions: 8'
Notes:
The brightest star appeared to be about 10m.
This cluster is 525 million years old.
Observations:
C11 at 98x. Small and faint, it is dominated by four stars at the center. There is a
small range in magnitudes, and it is not well-detached from the field. I counted 13 stars.
Distance (LY) : 2,050
-9-
Zone 233
Zone 233, Map 2
Double Stars
Easy
h2358
Rating: 3 E
HD 53017; SAO 172829
Position: 0703-2106
A
B
Magnitude
9.31
10.22
Separation PA
—
—
8.5 318 -
Year
—
1991
Spectra
A2 V
Colors
W
W
Notes:
1830: 10.0 @ 328. 7 measurements.
Observations:
C11 at 98x.
Harvard 101
Position: 0709-2012
A
B
Magnitude
9.02
11.00
Rating: 3 E
Separation PA
—
—
10.0
120
Year
—
1870
Notes:
1 measurement.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 28.5 inches.
Separation: AB = 4.13 miles.
Distance (LY): 265
Total luminosity (Suns): 1.60
- 10 -
Spectra
K2
Colors
yO
?
Zone 233
h3934
Rating: 3 E
ADS 5863; HD 55271; SAO 173152
Position: 0711-2148
A
B
Magnitude
6.92
8.65
Separation PA
—
—
13.4 +
236 +
Year
—
1991
Spectra
B5 V
Colors
W
B
Notes:
1832: 12.0 @ 234. 18 measurements.
B has a 10.6m companion at 0.6 @ 270 (1949).
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.4 inches.
Separation: AB = 75.7 miles.
Distance (LY): 3,620
Total luminosity (Suns): 2,150
Aravamudan 886
Rating: 4 E
HD 52643; SAO 172764
Position: 0701-2034
A
B
Magnitude
8.82
9.51
Separation PA
—
—
8.4 =
320 -
Year
—
1991
Notes:
1918: 8.4 @ 322. 3 measurements.
Observations:
C11 at 98x. Bur 572 is in the same field.
Distance (LY): 2,050
Total luminosity (Suns): 151
- 11 -
Spectra
Colors
Y
rO
Zone 233
Bos 1969
Rating: 4 E
Position: 0717-1843
A
B
Magnitude
8.91
9.22
Separation PA
—
—
2.9 +
7-
Year
—
1991
Spectra
B3 V
Colors
W
W
Notes:
1934: 2.8 @ 8. 7 measurements.
Observations:
C11 at 339x. It is the top star of a diamond figure.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.6 inches.
Separation: AB = 2.53 miles.
Distance (LY): 560
Total luminosity (Suns): 12
Bur 572
Rating: 5 E
ADS 5692; HD 52485; SAO 172736
Position: 0701-2038
A
B
Magnitude
6.71
10.26
Separation PA
—
—
5.2 =
143 =
Year
—
1991
Notes:
1877: 5.2 @ 143. 10 measurements.
Observations:
C11 at 98x. It shares the field with a 7m star.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.93 inches.
Separation: AB = 5.76 miles.
Distance (LY): 710
Total luminosity (Suns): 84
- 12 -
Spectra
Colors
A4mA5A9 W
O?
Zone 233
Aravamudan 906
Rating: 5 E
HD 56954; SAO 173428
Position: 0718-2053
A
B
Magnitude
8.75
12.30
Separation PA
—
—
11.8
275
Year
—
1918
Spectra
Colors
Y
O
Notes:
1 measurement.
Observations:
C11 at 98x.
Moderate
h3933
Rating: 4 M
HD 54961; SAO 152498
Position: 0710-1945
A
B
Magnitude
8.88
12.90
Separation PA
—
—
14.7 +
151 -
Year
—
1920
Spectra
B9 V
Colors
W
O?
Notes:
1836: 10.0 @ 153. 4 measurements.
Observations:
C11 at 98x. Tis is the tip of a small chevron of stars. Very nice field overall.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.60 inches.
Separation: AB = 8.51 miles.
Distance (LY): 371
Total luminosity (Suns): 3
- 13 -
Zone 233
Difficult
Hough 344
Rating: 3 D
ADS 5930
Position: 0715-2101
A
B
Magnitude
8.30
9.14
Separation PA
—
—
1.4 +
6+
Year
—
1991
Spectra
B8 V
Colors
W
W
Notes:
1890: 1.3 @ 4. 11 measurements.
Observations:
C11 at 634x. Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.2 inches.
Separation: AB = 10.5 miles.
Distance (LY): 4,800
Total luminosity (Suns): 1,280
Innes 772
Rating: 5 D
ADS 5823; HD 54519
Position: 0708-2052
A
B
Magnitude
6.82
12.00
Separation PA
—
—
15.9 +
326 -
Year
—
1933
Notes:
1910: 10.0 @ 330. 3 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 53.4 inches.
Separation: AB = 133 miles.
Distance (LY): 5,350
Total luminosity (Suns): 4,300
- 14 -
Spectra
K4 III
Colors
O
?
Zone 233
Bos 2622
Rating: 5 D
HD 55445; SAO 152550
Position: 0712-1937
A
B
Magnitude
7.70
12.30
Separation PA
—
—
10.0
79
Year
—
1933
Spectra
A5 V
Colors
W
?
Notes:
1 measurement.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.50 inches.
Separation: AB = 9.05 miles.
Distance (LY): 580
Total luminosity (Suns): 22
Deep Sky Objects
Difficult
Tombaugh 1
Position: 0701-1940
Type: Oc
Dimensions: 5.0
Rating: 5 D
Class: III1m:b
Cluster population: 45
Magnitude: 10.5
Notes:
The cluster is 1 billion years old.
Observations:
C8 at 104x. It is an extremely faint and scattered group of 10-12m stars. It was best
seen with averted vision.
Distance (LY): 9,780
Total luminosity (Suns): 472
- 15 -
Zone 233
Ruprecht 11
Position: 0707-2048
Type: Oc
Dimensions: 3'
Rating: 5 D
Class: III 2p
Cluster population: 20
Magnitude: 11.0
Observations:
C8 at 206x. It is small, faint and sparse. Roughly in the shape of a Y or arrowhead
that points to the east.
Zone 233, Map 3
Reference Star
Omicron 2 CMa (24 CMa; HD 53138; SAO 172839)
Position: 0703-2350
Mag : 3.02
Spectrum : B3 Ia
Color : bW
Assumed distance: 2,500 light years
Assumed luminosity (suns): 32,000
Notes:
This star is a spectroscopic binary that is experiencing mass loss at the rate of
0.000,000,08 Suns per year.
Double Stars
Easy
h3945
Innes 45; ADS 5951; HD 56577; SAO 173349
Rating: 1 E
Position: 0717-2319
A
B
Magnitude
4.83
6.02
Separation PA
—
—
26.8 52 -
- 16 -
Year
—
1991
Spectra
K4 III
A0 Vm
Colors
O!!
pB
Zone 233
Notes:
1837 (J. Herschel): 35.0 @ 63. 38 measurements.
The primary is an infra-red source. Hipparcos/Tycho mission data show different
distances for these stars (6,300 and 258 light years); they may be optical. The stars have
different proper motions.
This system may be a member of the Omicron CMa Group.
Observations:
C8 at 83x. A superb pair. Webb saw them as W and B or R and G. Very rich field.
h3914
Rating: 3 E
ADS 5728; HD 52778; SAO 172808
Position: 0702-2330
A
B
Magnitude
7.42
11.50
Separation PA
—
—
11.1 313 -
Year
—
1929
Spectra
G5 IV
Colors
Y
W
Notes:
1835: 12.0 @ 316. 4 measurements.
Observations:
C8 at 104x. It is the brightest star in a group of five that forms a "home plate" shape.
Very rich field.
h3938
Rating: 3 E
ADS 5912; HD 55856; SAO 173247
Position: 0714-2254
A
B
Magnitude
6.34
9.02
Separation PA
—
—
19.4 +
251 -
Year
—
1982
Spectra
B3 IV
A5
Colors
W
W
Notes:
1837: 18.0 @ 253. 16 measurements.
Hipparcos/Tycho mission data show different distances for these stars (1,580 and 76
light years); they may be optical.
- 17 -
Zone 233
Observations:
C8 at 83x.
h3950
Lalande 53; ADS 5986; HD 57190; SAO 173466
Rating: 3 E
Position: 0719-2203
A
B
Magnitude
7.02
7.50
Separation PA
—
—
3.9 +
347 -
Year
—
1992
Spectra
A2 V
Colors
W
W
Notes:
AB 1837: 3.0 @ 348. 25 measurements.
The stars have different proper motions.
Observations:
C8 at 206x. There are dozens of "look alikes". Good hunting, and good luck!
Extremely rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches.
Separation: AB = 2.31 miles.
Distance (LY): 381
Total luminosity (Suns): 29
See 74
FU CMa; ADS 5687; HD 52437; SAO 172725
Rating: 4 E
Position: 0700-2207
A
B
C
Magnitude
6.52
11.070
10.5
Separation
—
12.8 128.4
PA
—
233
0
Notes:
AB 1897: 13.8 @ 230. 3measurements.
AC 1 measurement.
- 18 -
Year
—
1899
Spectra
B2 IV-V
OV
Colors
bW
No
?
Zone 233
Hipparcos/Tycho data show different distances for these stars; they may be optical.
Finsen 334 is a 7.20m companion to A at 0.1" in PA 9 (1993).
Observations:
C8 at 104x. Averted vision helps pick up B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.2 inches; B = 0.41 inches.
Separation: AB = 26.8 miles; AC = 269 miles.
Distance (LY): 1,340
Total luminosity (Suns): 407
South 543
Rating: 4 E
HD 52390; SAO 172722
Position: 0700-2243
A
B
Magnitude
8.21
8.61
Separation PA
—
—
90.9 272 +
Year
—
1905
Spectra
K0
A0
Colors
O
W
Notes:
1825: 91.4 @ 271. 3 measurements.
Observations:
C8 at 104x. It is 5 min SW of an 8.2m orange star; faint.
Tau CMa
30 CMa; h3948; ADS 5977; HD 57061; SAO 173446
Rating: 5 E
Position: 0719-2457
A
B
C
D
Magnitude
4.42
10.50
11.20
8.22
Separation
—
8.6 +
15.0 =
84.4 -
PA
—
89 +
79 +
77 +
- 19 -
Year
—
1960
1960
1988
Spectra
O9 II
B2
Colors
bW
?
?
No
Zone 233
Notes:
AB 1835: 8.0 @ 86. 11 measurements. The primary is a spectroscopic binary with
an orbital period of 154.90 days. It is also an infra-red source.
AC 1835: 15.0 @ 73. 7 measurements.
AD 1834: 85.0 @ 73. 7 measurements.
Observations:
C8 at 206x. The open cluster (NGC 2362) forms a nice backdrop, but Tau is
disappointing.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.0 inches; C = 1.71 inches.
Separation: AB = 42.9 miles; AC = 74.9 miles; AD = 421 miles; Aa = 15.2 feet.
Distance (LY): 3,200
Total luminosity (Suns): 14,078
Moderate
Bur 331
Rating: 3 M
ADS 5998
Position: 0720-2425
A
B
Magnitude
7.90
8.75
Separation PA
—
—
2.0 +
117 +
Year
—
1991
Notes:
1877: 1.9 @ 116. 14 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.52 inches.
Separation: AB = 1.96 miles.
Distance (LY): 630
Total luminosity (Suns): 31
- 20 -
Spectra
ApSi
Colors
W
W
Zone 233
Innes 767
Rating: 5 M
ADS 5698; HD 52566; SAO 172748
Position: 0701-2223
A
B
Magnitude
8.05
10.80
Separation PA
—
—
5.8 +
67 +
Year
—
1964
Notes:
1910: 5.0 @ 60. 5 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches.
Separation: AB = 1.16 miles.
Distance (LY): 129
Total luminosity (Suns): 0.85
- 21 -
Spectra
G5 V
Colors
Y
W
Zone 233
Zone 233, Map 4
Double Stars
Easy
Holden 89
Rating: 3 E
ADS 6259
Position: 0739-1641
A
B
Magnitude
9.27
9.74
Separation PA
—
—
2.8 220 +
Year
—
1986
Spectra
K2 III:
Colors
Y!
O
Notes:
1888: 2.9 @ 218. 6 measurements.
Observations:
C11 at 98x!
Moderate
STF 1104
Rating: 4 M
ADS 6126; HD 59438; SAO 152943
Position: 0729-1500
A
B
C
D
E
Magnitude
6.42
7.68
10.70
11.20
Separation
—
1.8 2.2 -!!
42.4 +
81.6
PA
—
24 +!!
338 +!!
8+
53
Year
—
1998
1916
1916
1909
Spectra
F5 V
M0
Colors
W
yW
?
?
No
Notes:
AB 1831: 2.4 @ 292. 98 measurements. The AB period is probably about 1,090.9
years (Hopmann, 1969), while the ABxC period may run over 10,000 years. The stars
share a large common proper motion.
- 22 -
Zone 233
AC 1882: 20.7 @ 190. 5 measurements.
AD 1882: 33.6 @ 359. 5 measurements.
AE 1 measurement.
Observations:
C8 at 516x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches; C = 46.3 inches.
Separation: AB = 1,637 feet; AC = 2,006 feet; AD = 7.34 miles;
AE = 14.1 miles.
Distance (LY): 111
Total luminosity (Suns): 4.632
Deep Sky Objects
Easy
NGC 2409
Position: 0732-1711
Type: Oc
Rating: 4 E
Dimensions: 2.5'
Notes:
Brightest star is about 8.8m.
Observations:
C11 at 98x. Very small knot, triangular in shape, with large range in magnitude.
Loose group. 7 stars counted.
Bochum 4
Position: 0731-1657
Type: Oc
Cluster population: 30
Rating: 5 E
Magnitude: 7.3
- 23 -
Dimensions: 23'
Zone 233
Observations:
C11 at 98x. Very large group adjacent to NGC 2409. It has a large range in
brightness (the brightest star being 8.0m). I counted 17 stars. Most of the brighter
members lie along a N-S chain.
Distance (LY): 7,470
Total luminosity (Suns): 5,250
Moderate
Czernik 29
Position: 0728-1524
Type: Oc
Dimensions: 8.0
Rating: 4 M
Class: IV2p
Magnitude: 10.3
Notes:
This cluster is 200 million years old.
Observations:
C8 at 104x. It is a small group (4 min diameter) and only grainy. At 200x, it became
semi-resolved (9 stars counted).
Haffner 10, another open cluster, lies 2 min E of it, being of 11.5m and only 1.6 min
in diameter, but I could not get a glimpse of it at any magnification.
Distance (LY): 46,200
Total luminosity (Suns): 12,700
NGC 2414
Other Names: Collinder 150, H VIII 37
Astronomical League Program: Herschel II Club
Rating: 4 M
Position: 0733-1527
Type: Oc
Dimensions: 4'
Class: I 3m
Cluster population: 35
Magnitude: 7.9
Notes:
It is 10 light years in diameter and perhaps 9 million years old. The brightest star is
8.2m (2,750 times brighter than the Sun).
- 24 -
Zone 233
It lies 38,000 light years from the galactic center and 450 light years above the
galactic plane. It lies in Outer Spiral Arm II of the Milky Way.
It may not be a true cluster.
Observations:
C8 at 104x. It is a triangular group with 7 stars resolved. It does not stand out well in
the field.
Model (where the Sun is a baseball):
Its diameter would be 3,070 miles with stars 460 miles apart.
Distance (LY): 11,260
Total luminosity (Suns): 9,050
NGC 2428
Other Names: H VIII 47
Rating: 5 M
Position: 0739-1632
Type: Oc
Dimensions: 6'
Notes:
The cluster may be 479 million years old.
Observations:
C11 at 98x. Very faint, not well detached, small range in magnitudes. About 9 stars
involved.
Difficult
Haffner 10
Position: 0729-1523
Type: Oc
Dimensions: 1.6'
Rating: 4 D
Class: III 2p
Cluster population: 40
Notes:
Asterism? The brightest star is 12.7m.
- 25 -
Magnitude: 11.5
Zone 233
Observations:
C8 at 206x. It is a tiny, dense knot of 4 to 6 faint star that lies just off the E leg of a
small 45-45-90 right triangle of 9m stars (about 3 min to a leg). Moderately rich field.
Distance (LY): 6,850
PK 232-1.1
Other Names: Minkowski I-13
Rating: 5 D
Position: 0721-1808
Type: PN
Surface brightness: 9.0
Class: 7
Dimensions: 10"
Magnitude: 12.6
Observations:
C11 at 140x with O-III. Very faint and small disc, not visible at first without the OIII filter. Once its position was ascertained, I tried it without the O-III and found it
surprisingly easy. No central star detected.
Distance (LY): 14,670
Total luminosity (Suns): 153
Zone 233, Map 5
Double Stars
Easy
h3964
Rating: 3 E
ADS 6062; HD 58465; SAO 173685
Position: 0725-2100
A
B
Magnitude
8.92
9.71
Separation PA
—
—
4.5 +
347 +?
- 26 -
Year
—
1987
Spectra
B5 II
Colors
W
W
Zone 233
Notes:
1837: 4.0 @ 150. 14 measurements. Quadrant reversal?
Observations:
C8 at 206x. Lots of candidates to check!
Rich field. It lies on the NW edge of the open cluster NGC 2384.
South 550
Rating: 3 E
HD 59074; SAO 152905
Position: 0728-1830
A
B
Magnitude
6.92
7.63
Separation PA
—
—
39.5 =
116 =
Year
—
1991
Spectra
A0
B9 Ib
Colors
W
bW
Notes:
1825: 39.5 @ 116. 15 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. The stars have a small difference in proper
motion.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.69. B = 4.91 inches.
Separation: AB = 39.5 miles.
Distance (LY): 640
Total luminosity (Suns): 90
Bur 198
Rating: 4 E
ADS 6076
Position: 0726-2057
A
B
Magnitude
7.72
9.73
Separation PA
—
—
5.6 215 +
- 27 -
Year
—
1965
Spectra
M1
Colors
O
W
Zone 233
Notes:
1870: 5.7 @ 214. 13 measurements.
Observations:
C11 at 98x. Nice field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 41.2 inches.
Separation: AB = 13.5 miles.
Distance (LY): 1,550
Total luminosity (Suns): 180
Stone 17
Rating: 4 E
ADS 6078
Position: 0726-1821
A
B
Magnitude
7.44
9.89
Separation PA
—
—
4.9 +
75 -
Year
—
1991
Notes:
1877: 4.6 @ 78. 15 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 5.19 miles.
Distance (LY): 680
Total luminosity (Suns): 34
- 28 -
Spectra
A0 V
Colors
W
O
Zone 233
h3973
Rating: 4 E
ADS 6159; HD 60054
Position: 0732-2055
A
B
Magnitude
7.89
9.74
Separation PA
—
—
9.1 +
38 +
Year
—
1983
Spectra
B8 IV
Colors
bW
R
Notes:
1836: 8.0 @ 36. 14 measurements.
Observations:
C8 at 104x. The color of B is not certain. It may be V.
Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.3 inches.
Separation: AB = 9.65 miles.
Distance (LY): 680
Total luminosity (Suns): 35
Bos 201
Rating: 4 E
ADS 6254
Position: 0739-2016
A
B
Magnitude
7.27
7.80
Separation PA
—
—
2.9 =
334 +
Notes:
1876: 2.9 @ 330. 27 measurements.
Observations:
C8 at 206x.
C11 at 193x.
- 29 -
Year
—
1991
Spectra
A3
Colors
W
W
Zone 233
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.05 inches.
Separation: AB = 2.14 miles.
Distance (LY): 475
Total luminosity (Suns): 35
Argelander 17
Rating: 5 E
Position: 0728-2047
A
B
Magnitude
9.77
10.51
Separation PA
—
—
26.6 +
228 +
Year
—
1933
Spectra
A2
Colors
W
W
Notes:
1889: 24.3 @ 223. 5 measurements.
Observations:
C8 at 104x. Very faint field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.80 inches.
Separation: AB = 5.35 miles.
Distance (LY): 129
Total luminosity (Suns): 0.239
Moderate
Bur 199
Hough 522; ADS 6065; HD 58510; SAO 173684
Rating: 3 M
Position: 0725-2110
A
B
C
Magnitude
7.23
8.12
12.80
Separation
—
1.7 =
6.6 +
PA
—
24 +
118 -
Notes:
AB 1870: 1.7 @ 19. 26 measurements.
- 30 -
Year
—
1991
1965
Spectra
B2 Iab
Colors
W
W
No
Zone 233
AC 1898: 6.1 @ 120. 5 measurements.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.8 feet.
Separation: AB = 39.3 miles; AC = 152 miles.
Distance (LY): 14,800
Total luminosity (Suns): 36,200
See 84
Rating: 4 M
ADS 6273; HD 61774; SAO 153225
Position: 0740-1940
A
B
Magnitude
5.93
11.30
Separation PA
—
—
8.4 279 -
Year
—
1959
Spectra
K0 III
Colors
Y
R
Notes:
1897: 9.3 @ 287. 9 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 9.43 miles.
Distance (LY): 720
Total luminosity (Suns): 182
Bos 1974
Aravamudan 1346; HD 59409; SAO 173835
Rating: 5 M
Position: 0729-2123
A
B
Magnitude
8.99
11.70
Separation PA
—
—
11.0 148 =
Notes:
1922: 11.6 @ 148. 3 measurements.
- 31 -
Year
—
1959
Spectra
B8 V
Colors
W
?
Zone 233
Observations:
C8 at 104x.
Deep Sky Objects
Easy
NGC 2384
Other Names: Collinder 142, Collinder 143
Rating: 5 E
Position: 0725-2102
Type: Oc
Dimensions: 3'
Class: IV 3p
Cluster population: 15
Magnitude: 7.4
Notes:
This cluster is 8 million years old (earliest spectrum is B0) and lies 35,000 light years
from the galactic center and 450 light years below the galactic plane.
The brightest star is 8.9m (900 times brighter than the Sun).
Observations:
C8 at 104x. It gets lost in the very rich field. I thought it looked a little like
Monoceros! A strong orange star lies to the NE.
Model (where the Sun is a baseball):
Its diameter would be 1,830 miles with stars 390 miles apart.
Distance (LY): 6,900
Luminosity (suns): 4,100
Moderate
NGC 2421
Other Names: Melotte 67; Collinder 151; Raab 54, H VII 67
Astronomical League Program: Herschel 400 Club
Rating: 3 M
Position: 0736-2037
Type: Oc
Dimensions: 10'
Class: I 2r
Cluster population: 70
- 32 -
Magnitude: 8.3
Zone 233
Notes:
It appears to be 25 million years old and has 4 Be stars. The brightest star is 10.5m
(190 times brighter than the Sun).
It lies 31,500 light years from the galactic center and right in the galactic plane.
Observations:
C8 at 104x. A dense triangular group that is rich but dim (less than 10m). Since the
field is also rich, it does not stand out very well. Barbara Wilson, the amateur with
colorful descriptions of many deep sky objects, says this cluster reminds her of a bell or a
Christmas tree.
Model (where the Sun is a baseball):
Its diameter would be 580 miles with stars 70 miles apart.
Distance (LY): 7,110
Luminosity (suns): 1,900
Ruprecht 16
Position: 0723-1927
Type: Oc
Rating: 4 M
Dimensions: 11'
Cluster population: 15
Notes:
The brightest star is 13m.
Observations:
C11 at 98x. Faint, loose and scattered, not compressed, and with a small range in
magnitudes. I counted 16 stars in the field.
NGC 2432
Other Names: Melotte 73; Collinder 157; Raab 60, H VI 36
Astronomical League Program: Herschel II Club
Rating: 4 M
Position: 0741-1905
Type: Oc
Dimensions: 7'
Class: II 2m
Cluster population: 50
Notes:
The cluster is 151 million years old.
- 33 -
Magnitude: 10.2
Zone 233
Observations:
C8 at 104x. A dense cigar-shaped object (running N to S). Use averted vision. Rich
field.
Difficult
NGC 2383
Other Names: Collinder 141
Rating: 3 D
Position: 0725-2056
Type: Oc
Dimensions: 5'
Class: II 3m
Cluster population: 50
Magnitude: 8.4
Notes:
This cluster is 15 million years old, with the earliest spectrum being an A3. The
brightest star is 9.8m (400 times brighter than the Sun).
It lies 32,000 light years from the galactic center and 300 light years below the
galactic plane.
Observations:
C8 at 280x. Very faint, it was semi-resolved (only 5 stars). It was small and
nebulous.
Model (where the Sun is a baseball):
Its diameter would be 3,040 miles with stars 400 miles apart.
Distance (LY): 5,400
Luminosity (suns): 1,400
Czernik 31
Position: 0731-1944
Type: Oc
Rating: 5 D
Class: III 2m :b
Dimensions: 9'
Observations:
C11 at 98x. Extremely faint goup with not much range in magnitude. Brightest star
is about 13m. I counted 8 stars in poor transparency (6 out of 10).
- 34 -
Zone 233
Zone 233, Map 6
Double Stars
Easy
H N 19
Rating: 1 E
ADS 6190; HD 60584; SAO 174020
Position: 0734-2328
A
B
Magnitude
5.06
5.12
Separation PA
—
—
9.8 +
117 +
Year
—
1991
Spectra
F6 V
F5/7 V
Colors
W
W
Notes:
1825: 9.0 @ 105. 51 measurements.
A is a spectroscopic binary.
Observations:
C8 at 65x.
C11 at 98x. Awesome!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.20 inches; B = 10.4 inches.
Separation: AB = 1.45 miles.
Distance (LY): 95
Total luminosity (Suns): 9.57
Holden 87
Innes 391 (C, D, E); ADS 5997
Rating: 3 E
Position: 0720-2153
A
B
C
D
E
Magnitude
9.25
9.50
13.80
10.20
13.56
Separation
—
4.5 +
9.7 +
44.4 +
24.8 +
PA
—
275 +
36 170 +
321 +
- 35 -
Year
—
1937
1912
1924
1924
Spectra
B2/3 III:
Colors
W
W
No
W
No
Zone 233
Notes:
AB 1889: 4.4 @ 274. 12 measurements.
AC 1903: 5.0 @ 30. 3 measurements.
AD 1909: 43.8 @ 169. 3 measurements.
AE 1909: 23.0 @ 304. 3 measurements.
Observations:
C11 at 98x. This system is the dominant star of the dismal open cluster NGC 2367.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.0 inches.
Separation: AB = 232 miles; AC = 500 miles; AD = 2,287 miles; AE = 1,277
miles.
Distance (LY): 33,000
Total luminosity (Suns): 38,000
Harvard 107
Rating: 3 E
HD 61024; SAO 174098
Position: 0736-2350
A
B
C
D
Magnitude
7.62
10.10
10.43
13.34
Separation
—
20.3 +!
49.9 62.6
PA
—
156 337 =
113
Year
—
1991
1991
1987
Spectra
K2 III
Colors
Y
?
?
No
Notes:
AB 1869: 10.0 @ 180. 6 measurements.
AC 1910: 50.6 @ 337. 6 measurements.
AD 1 measurement.
Hipparcos/Tycho mission data show different distances for these stars (880 and 307
light years)they may be optical.
Observations:
C8 at 104x. A 9m star lies 5 min S.
- 36 -
Zone 233
Innes 391
Holden 87; ADS 5997
Rating: 4 E
Position: 0720-2153
A
B
C
D
E
Magnitude
9.25
10.30
13.80
10.34
13.50
Notes:
AB 1889:
AC 1903:
AD 1909:
AE 1909:
Separation
—
4.5 +
9.7 +
44.4 +
24.8 +
PA
—
275 +
36 +
170 +
321 +
Year
—
1937
1912
1924
1924
Spectra
B2 III
Colors
W
No
No
?
No
4.4 @ 274. 12 measurements.
5.0 @ 30. 3 measurements.
43.8 @ 169. 3 measurements.
23.0 @ 304. 3 measurements.
Observations:
C8 at 104x. A 10m star is 80" S. The field is the loose open cluster NGC 2367.
Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.0 inches.
Separation: AB = 1,795 feet; AC = 3,907 feet; AD = 3.39 miles; AE = 1.90 miles.
Distance (LY): 49
Total luminosity (Suns): 0.050
Aravamudan 2043
Abt 63 (D, E, F)
Rating: 4 E
Position: 0720-2401
A
B
C
D
E
Magnitude
8.97
9.42
10.30
12.14
12.24
Separation
—
9.7 8.6 =
121.7
100.6
PA
—
290 +
5+
121
84
- 37 -
Year
—
1991
1987
1987
1987
Spectra
B2 V
Colors
bW
W
No
No
No
Zone 233
Notes:
AB 1911: 11.3 @ 289. 5 measurements.
AC 1922: 8.6 @ 0. 2 measurements.
AD, AE, AF all 1 measurement. AF (1987): 130.8 @ 74. Not seen.
Observations:
C8 at 104x. This pair is the NW-most start of a chain of three 9m stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.2 inches.
Separation: AB = 6.38 miles; AC = 5.66 miles; AD = 80.1 miles; AE = 66.3
miles.
Distance (LY): 422
Total luminosity (Suns): 5.92
h5451a
Rating: 4 E
SAO 53958
Position: 0722-2412
A
B
Magnitude
8.83
9.32
Separation PA
—
—
5.5 +
197 +
Year
—
1991
Notes:
AB 1835: 3.0 @ 193. 10 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.8 feet.
Separation: AB = 182 miles.
- 38 -
Spectra
A0/1 V
Colors
W
W
Zone 233
Aravamudan 1692
Rating: 4 E
SAO 173868
Position: 0730-2234
A
B
Magnitude
9.06
11.40
Separation PA
—
—
11.1
129
Year
—
1922
Spectra
Colors
yW
?
Notes:
1 measurement.
Observations:
C8 at 206x. It is the south vertex of an acute 10m triangle.
Moderate
Hipparcos 1026
Rating: 4 M
HD 57236; SAO 173470
Position: 0720-2200
A
B
Magnitude
8.75
11.16
Separation PA
—
—
16.9 +
135 +
Year
—
1991
Notes:
1920: 16.6 @ 133. 3 measurements.
Observations:
C11 at 98x. The lovely pair h3950, 5 min SW, upstages it!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.0 inches.
Separation: AB = 40.9 miles.
Distance (LY): 1,550
Total luminosity (Suns): 63
- 39 -
Spectra
O9 V
Colors
bW
W?
Zone 233
Difficult
Howe 18
Rating: 4 D
ADS 6184; HD 60535
Position: 0734-2342
A
B
Magnitude
8.05
8.94
Separation PA
—
—
1.9 +
204 =
Year
—
1991
Spectra
B6/8 III:
Colors
W
W
Notes:
1877: 1.8 @ 204. 19 measurements.
Observations:
C11 at 339x.
Deep Sky Objects
Easy
NGC 2362
Rating: 2 E
Other Names: Melotte 65; Collinder 136; Raab 52, H VII 17
Astronomical League Program: Caldwell Club, Herschel 400 Club
Position: 0719-2457
Type: Oc
Dimensions: 8'
Class: I 3r
Cluster population: 60
Magnitude: 3.9
Notes:
It is 14 light years in diameter and 8 million years old (most of its members are still
approaching the Main Sequence; the earliest spectra are O8 types). Other young clusters
include NGC 2264 in Monoceros and the Double Cluster of Perseus.
This cluster lies 30,700 light years from the galactic center and 500 light years below
the galactic plane.
This is the nucleus of the Vela OB1 Association.
The main star Tau CMa is a spectroscopic binary with a period of 154.8 days.
At this distance, our Sun would shine at 15.5m.
- 40 -
Zone 233
Observations:
C8 at 83x. In the shape of an equilateral
triangle, with a nice doublet (5m and 9m, 10"
separation). The central blue star is Tau
CMa.
Model (where the Sun is a baseball):
Its diameter would be 3,820 miles with stars
490 miles apart.
Distance (LY): 4,530
Luminosity (suns): 44,200
NGC 2362
Open cluster (I 3 r; 60 stars)
Observed with C8 on 2/1/92
Magnification: 80x
Moderate
NGC 2367
Other Names: Collinder 137, H VIII 28
Astronomical League Program: Herschel II Club
Rating: 5 M
Position: 0720-2156
Type: Oc
Dimensions: 4' x 10'
Class: II 3m
Cluster population: 30
Magnitude: 7.9
Notes:
Virtually brand new (1 million years old), its youngest stars have B3 spectra. The
brightest star is 9.4m (690 times brighter than the Sun).
It lies 34,000 light years from the galactic center and 600 light years below the
galactic plane.
Observations:
C8 at 83x. It is coarse and in a "Y" shape. Four stars at the center dominate this
small group.
- 41 -
Zone 233
Model (where the Sun is a baseball):
Its diameter would be 6,550 miles with stars 1,040 miles apart.
Distance (LY): 6,530
Luminosity (suns): 2,300
Trumpler 6
Other Names: Collinder 145
Rating: 5 M
Position: 0726-2418
Type: Oc
Dimensions: 6'
Class: III 2p
Cluster population: 22
Magnitude: 10.0
Observations:
C8 at 104x. Faint, it looks like only a slight concentration of a field.
Trumpler 7
Other Names: Collinder 146
Rating: 5 M
Position: 0727-2402
Type: Oc
Dimensions: 5'
Class: II 3pn
Cluster population: 30
Magnitude: 7.9
Notes:
It is 8 light years in diameter. The brightest star is 9.1m (490 times brighter than the
Sun). The cluster is 27 million years old.
Observations:
C8 at 104x. It is dominated by a 3 min triangle of stars— 10m, 11m and 11m. Poor
group; loose and scattered.
Model (where the Sun is a baseball):
Distance (LY): 4,800
Luminosity (suns): 1,250
- 42 -
Zone 233
Zone 233, Map 7
Double Stars
Easy
h4015
Rating: 2 E
HD 64668
Position: 0754-1748
A
B
Magnitude
9.06
9.51
Separation PA
—
—
20.4 229 -
Year
—
1991
Spectra
A0 V
Colors
W
W
Notes:
1895: 21.3 @ 225. 9 measurements.
Observations:
C11 at 98x. The open cluster NGC 2479 lies 15 min NE.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 8.50 miles.
Distance (LY): 267
Total luminosity (Suns): 2.1
Rossiter 2507
Rating: 3 E
Position: 0752-1752
A
B
Magnitude
9.77
10.26
Separation PA
—
—
16.3 128 -
Notes:
1915: 16.7 @ 129. 6 measurements.
- 43 -
Year
—
1992
Spectra
A0 V
Colors
W
W
Zone 233
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 1.90 miles.
Distance (LY): 75
Total luminosity (Suns): 0.11
h4013
Rating: 3 E
ADS 6452; HD 64611; SAO 153563
Position: 0754-1820
A
B
C
Magnitude
6.89
10.97
9.92
Separation
—
19.0 67.0
PA
—
197 =
271
Year
—
1915
1902
Notes:
AB 1902: 19.3 @ 197. 4 measurements.
AC 1 measurement.
C has a 13.5m companion at 19.3 @ 197 (1902).
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 1.2 inches.
Separation: AB = 49.2 miles; AC = 174 miles.
Distance (LY): 1,660
Total luminosity (Suns): 433
- 44 -
Spectra
M1 III
Colors
D!
?
B!
Zone 233
A 3095
Rating: 4 E
HD 62676; SAO 153335
Position: 0745-1718
A
B
Magnitude
8.07
8.42
Separation PA
—
—
17.3 280 =
Year
—
1991
Spectra
F5
Colors
W
?
Notes:
1904: 19.0 @ 280. 7 measurements.
B has a 14.1m companion (1.5 @ 37 in 1929).
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.1 inches.
Separation: AB = 7.91 miles.
Distance (LY): 293
Total luminosity (Suns): 6.79
Hussey 709
Rating: 5 E
ADS 6309
Position: 0742-1816
A
B
C
D
E
Magnitude
8.53
11.10
9.57
10.60
11.10
Separation
—
1.8 24.9 22.4
PA
—
288 =
2334
Notes:
AB 1903: 1.9 @ 288. 9 measurements.
AC 1914: 25.6 @ 4. 4 measurements.
CD 1 measurement (0.3 @ 208) in 1940.
AE 1 measurement.
- 45 -
Year
—
1991
1942
1940
1942
Spectra
AV
Colors
W
W
W
No
No
Zone 233
Observations:
C8 at 104x. Very faint field.
Moderate
Holden 90
Rating: 4 M
ADS 6288
Position: 0741-1629
A
B
C
D
Magnitude
9.92
10.23
9.32
11.23
Separation
—
3.1 +
95.5 8.5 +
PA
—
277 216 +
143 +
Year
—
1991
1969
1991
Spectra
F7/8 V
Notes:
AB 1888: 2.8 @ 279. 4 measurements.
AC 1894: 99.8 @ 215. 6 measurements.
AD 1903: 8.4 @ 142. 6 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.60 inches.
Separation: AB = 4,435 feet; AC = 26.1 miles; AD = 2.32 miles.
Distance (LY): 175
Total luminosity (Suns): 1.0
- 46 -
Colors
W
W
W
W?
Zone 233
Deep Sky Objects
Easy
NGC 2440
Other Names: PK 234+2.1, H IV 64
Astronomical League Program: Herschel 400 Club
Rating: 2 E
Position: 0742-1812
Type: Pn
Dimensions: 20" x 54"
Class: 5
Magnitude: 11.5
Notes:
It was discoveredin 1790 by William
Herschel.
The star that gave birth to this nebula (the
star is not visible in an 8" scope) is the hottest
star known, with a surface temperature of
200,000o K!
Observations:
C8 at 206x. Brighter core with faint "ears",
it has a bluish cast and a NE to SW axis. The
central star was not detected. A yellow star lies
just E, and the nebula is "packaged" inside a 9m
trapezoid.
NGC 2440
Planetary nebula (5)
Observed with C8 on 2/1/92
Magnification: 80x
Model (where the Sun is a baseball):
It would be 320 miles by 119 miles.
Distance (LY): 3,800
Luminosity (Suns): 29
- 47 -
Zone 233
Moderate
NGC 2479
Other Names: Collinder 167, H VII 58
Astronomical League Program: Herschel 400 Club
Rating: 4 M
Position: 0755-1743
Type: Oc
Dimensions: 8'
Class: III 1m
Cluster population: 45
Magnitude: 9.6
Notes:
This cluster is 977 million years old.
Observations:
C8 at 206x. With averted vision, it looks nebulous. I could resolve 10 stars in this
round group. The brightest stars are at the N end. Dean Williams claims to see lanes
with averted vision, but I have never seen any lanes. Out of the field and to the W lies a
fairly bright double star.
Distance (LY): 3,910
Total luminosity (Suns): 173
Ruprecht 151
Position: 0741-1615
Type: Oc
Rating: 5 M
Class: IV 3 m
Dimensions: 15'
Notes:
This cluster is 309 million years old.
Observations:
C11 at 98x. Very faint and poor splattering of stars; loose, with no central
concentration. Wide range in magnitudes (10 to 13). 17 stars counted.
Distance (LY): 6,850
- 48 -
Zone 233
Zone 233, Map 8
Double Stars
Easy
Dawson 29
Rating: 3 E
ADS 6409
Position: 0751-1854
A
B
Magnitude
9.09
9.36
Separation PA
—
—
5.6 =
191 +
Year
—
1965
Spectra
A9 V
Colors
W
Y
Notes:
1916: 5.6 @ 190. 3 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.30 inches.
Separation: AB = 47.5 miles.
Distance (LY): 5,440
Total luminosity (Suns): 950
Aravamudan 1381
Rating: 4 E
HD 62027; SAO 174289
Position: 0741-2115
A
B
Magnitude
7.79
10.24
Separation PA
—
—
10.9 205 +
Notes:
1918: 11.2 @ 203. 3 measurements.
- 49 -
Year
—
1987
Spectra
K4/5 III
Colors
O
B
Zone 233
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 54.3 inches.
Separation: AB = 9.69 miles.
Distance (LY): 570
Total luminosity (Suns): 21
Bos 1077
Rating: 4 E
HD 63395; SAO 153416
Position: 0748-1924
A
B
C
Magnitude
7.61
9.08
10.53
Separation
—
0.6 +
41.3
PA
—
304 +
63
Year
—
1991
1933
Spectra
A2 IV
Colors
W
No
B
Notes:
AB 1928: 0.3 @ 278. 10 measurements.
AC 1 measurement.
Observations:
C8 at 104x. An 8m star lies 15 min NNE. A bowl of three 9m stars lies 15 min S.
This is a moderately rich and bright field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches.
Separation: AB = 3,696 feet; AC = 48.3 miles.
Distance (LY): 750
Total luminosity (Suns): 25
- 50 -
Zone 233
Deep Sky Objects
Moderate
Ruprecht 34
Other Names: Berkeley 38
Rating: 3 M
Position: 0746-2023
Type: Oc
Dimensions: 4.0'
Class: III 2p
Cluster population: 35
Magnitude: 9.5
Notes:
Asterism?
The brightest star is 11.2m.
Observations:
C8 at 206x. It was nebulous at low powers, but small and delicate (and faint!) at
higher power. I counted 8 stars, five of them being in a tight knot at the center.
NGC 2455
Other Names: Melotte 77; Collinder 163; Raab 64
Rating: 4 M
Position: 0749-2118
Type: Oc
Dimensions: 8'
Class: III 2m
Cluster population: 50
Notes:
The brightest star is 12m.
Observations:
C8 at 104x. With averted vision, I counted 15 stars.
- 51 -
Magnitude: 10.2
Zone 233
Zone 233, Map 9
Reference Star
Xi Pup (7 Pup; Bur 1063; Azmidiske; HD 63700; SAO 174601)
Position: 0749-2452
Mag : 3.30
Spectrum : G6 Ia
Color : W
Assumed distance: 1,350 light years
Assumed luminosity (suns): 7,000
Notes:
The primary is a spectroscopic binary and an infra-red source.
First measure: 4.6 @ 189.
Double Stars
Easy
h4022
Rating: 3 E
ADS 6495; HD 65566; SAO 174906
Position: 0759-2129
A
B
Magnitude
8.38
8.65
Separation PA
—
—
15.6 +
7-
Year
—
1991
Notes:
1836: 15.0 @ 8. 6 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 39.7 miles.
Distance (LY): 1,630
Total luminosity (Suns): 158
- 52 -
Spectra
K0 III
Colors
Y
O
Zone 233
h3995
Rating: 4 E
ADS 6320; HD 62496; SAO 174394
Position: 0743-2207
A
B
Magnitude
8.94
9.80
Separation PA
—
—
6.3 +
254 +
Year
—
1966
Spectra
A0
Colors
bW
B
Notes:
1837: 5.0 @ 250. 7 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.47 inches.
Separation: AB = 24.6 miles.
Distance (LY): 2,500
Total luminosity (Suns): 160
See 504
Rating: 4 E
HD 62775; SAO 174439
Position: 0745-2414
A
B
Magnitude
8.14
10.20
Separation PA
—
—
31.2 +
117 -
Year
—
1903
Notes:
1898: 31.1 @ 118. 2 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.1 inches.
Separation: AB = 16.9 miles.
Distance (LY): 347
Total luminosity (Suns): 6
- 53 -
Spectra
A2 III/IV
Colors
W
W
Zone 233
Aravamudan 2067
Position: 0745-2351
A
B
Magnitude
8.90
11.40
Rating: 4 E
Separation PA
—
—
7.4
97
Year
—
1922
Spectra
Colors
O
?
Notes:
1 measurement.
This star, and Aravamudan 2068, may be distant companions of Innes 780.
Observations:
C8 at 206x. It lies on the SW side of the open cluster M93 (NGC 2447).
CPD 4
Rating: 5 E
HD 62244; SAO 174325
Position: 0742-2407
A
B
Magnitude
8.28
9.91
Separation PA
—
—
28.2
165
Year
—
1920
Spectra
Colors
ApSrEuCr W
W?
Notes:
1 measurement.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.70 inches.
Separation: AB = 1,452 miles.
Distance (LY): 33,000
Total luminosity (Suns): 51,000
- 54 -
Zone 233
Aravamudan 2066
Rating: 5 E
HD 62679; SAO 174421
Position: 0744-2353
A
B
Magnitude
8.36
10.80
Separation PA
—
—
9.7 318 +
Year
—
1992
Spectra
Colors
rO
?
Notes:
1911: 10.4 @ 317. 5 measurements.
Observations:
C8 at 104x. It lies on the SW side of the open cluster M93 (NGC 2447).
Distance (LY): 730
Total luminosity (Suns): 12
Aravamudan 2074
Rating: 5 E
HD 63377; SAO 174537
Position: 0748-2413
A
B
Magnitude
9.51
9.70
Separation PA
—
—
13.9
118
Year
—
1922
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C11 at 98x.
h4003
Rating: 5 E
HD 63417; SAO 174549
Position: 0748-2411
A
B
Magnitude
9.46
10.16
Separation PA
—
—
14.9 109 -
- 55 -
Year
—
1991
Spectra
F5
Colors
W
B
Zone 233
Notes:
1837: 15.0 @ 128. 8 measurements.
Observations:
C8 at 104x. Very faint.
Aravamudan 1411
Rating: 5 E
Position: 0754-2155
A
B
Magnitude
8.57
10.11
Separation PA
—
—
9
180
Year
—
1922
Spectra
Colors
W
?
Notes:
May be optical because Hipparcos gives different distances (270 and 134 light years).
Observations:
C8 at 104x.
Distance (LY): 270
Total luminosity (Suns): 2.6
Deep Sky Objects
Easy
NGC 2447
Rating: 2 E
Other Names: Melotte 76; Collinder 160; Raab 63, M93
Astronomical Leage Program: Messier Club, Messier Binocular Club
Position: 0745-2352
Type: Oc
Dimensions: 22'
Class: I 3 r
Cluster population: 80
- 56 -
Magnitude: 6.2
Zone 233
Notes:
Discovered by Messier on March 20, 1781, it is 387 million years old. The earliest
stars are of B9 spectra. The brightest star is 8.2m (530 times brighter than the Sun).
It is 30,000 light years from the galactic center and right on the galactic plane.
Observations:
C8 at 104x. Wow!! Extremely rich,
dense and bright! Note the trapezoidal
shape. It seems to run mostly N-S.
Geoff Chester, an amateur, thinks he
sees five loose "arms" in this cluster. I
don't know— maybe with a little
imagination..… William Schart
(Killeen, TX, C8) says, "This open
cluster looks like a stealth bomber to
me!"
Steve Coe (Phoenix, AZ, 13" Newt)
says, "there are few stars in the middle;
this 'black hole' effect can be seen in
all the observations I have ever made
of this cluster."
14x70 Binos. Difficult object given
the boily skies.
Model (where the Sun is a baseball):
Its diameter would be 7,420 miles
with stars 860 miles apart.
NGC 2447 (M93)
Open cluster (I 3 r; 80 stars)
Observed with C8 on 2/1/92
Magnification: 80x
Distance (LY): 3,380
Luminosity (suns): 3,400
- 57 -
Zone 233
Moderate
NGC 2482
Other Names: Collinder 166, H VII 10; The Starfish Cluster
Astronomical League Program: Herschel 400 Club
Rating: 3 M
Position: 0755-2418
Type: Oc
Dimensions: 12'
Class: IV 1m
Cluster population: 40
Magnitude: 7.3
Notes:
This cluster is 400 million years old and lies 29,000 light years from the galactic
center and 80 light years above the galactic plane.
The brightest star is 10m (50 times brighter than the Sun).
Observations:
C8 at 104x. Rich and faint, it has the shape of a swallowtail butterfly— better than
M7 in Scorpius. Dean Williams thinks it looks more like a Christian cross running E-W.
Barbara Wilson seems to confirm this impression when she says the cluster is like a long
arrow.
C11 at 98x. Faint but rich, with small range in magnitude. I counted 24 stars in poor
transparency (6 out of 10).
Model (where the Sun is a baseball):
Its diameter would be 2,920 miles with stars 425 miles apart.
Distance (LY): 4,380
Luminosity (suns): 1,800
- 58 -
Zone 233
Zone 233 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
h3945
0717-2319
1E
3
H N 19
0734-2328
1E
6
h4015
0754-1748
2E
7
h3914
0702-2330
3E
3
h2358
0703-2106
3E
2
Harvard 101
0709-2012
3E
2
h3934
0711-2148
3E
2
h3938
0714-2254
3E
3
h3950
0719-2203
3E
3
Holden 87
0720-2153
3E
6
h3964
0725-2100
3E
5
South 550
0728-1830
3E
5
Harvard 107
0736-2350
3E
6
Holden 89
0739-1641
3E
4
Dawson 29
0751-1854
3E
8
Rossiter 2507
0752-1752
3E
7
h4013
0754-1820
3E
7
h4022
0759-2129
3E
9
South 543
0700-2243
4E
3
See 74
0700-2207
4E
3
Component
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
D
E
A
B
A
B
A
B
C
D
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
C
- 59 -
Mag
4.83
6.02
5.06
5.12
9.06
9.51
7.42
11.50
9.31
10.22
9.02
11.00
6.92
8.65
6.34
9.02
7.02
7.50
9.25
9.50
13.80
10.20
13.56
8.92
9.71
6.92
7.63
7.62
10.10
10.43
13.34
9.27
9.74
9.09
9.36
9.77
10.26
6.89
10.97
9.92
8.38
8.65
8.21
8.61
6.52
11.07
10.50
Separation
—
26.8 —
9.8 +
—
20.4 —
11.1 —
8.5 —
10.0
—
13.4 +
—
19.4 +
—
3.9 +
—
4.5 +
9.7 +
44.4 +
24.8 +
—
4.5 +
—
39.5 =
—
20.3 +!
49.9 62.6
—
2.8 —
5.6 =
—
16.3 —
19.0 67.0
—
15.6 +
—
90.9 —
12.8 128.4
PA
—
52 —
117 +
—
229 —
313 —
318 —
120
—
236 +
—
251 —
347 —
275 +
9.7 +
44.4 +
321 +
—
347 +?
—
116 =
—
156 49.9 62.6
—
220 +
—
191 +
—
128 —
197 =
67.0
—
7—
272 +
—
233
128.4
Zone 233
Designation
Aravamudan
886
Position
Rating
Map
0701-2034
4E
2
Skinner 4
0705-1638
4E
1
STF 1057
0715-1529
4E
1
Bos 1969
0717-1843
4E
2
Innes 391
0720-2153
4E
6
Aravamudan
2043
0720-2401
4E
6
h5451a
0722-2412
4E
6
Bur 198
0726-2057
4E
5
Stone 17
Aravamudan
1692
0726-1821
4E
5
0730-2234
4E
6
h3973
0732-2055
4E
5
Bos 201
Aravamudan
1381
0739-2016
4E
5
0741-2115
4E
8
h3995
0743-2207
4E
9
See 504
Aravamudan
2067
0745-2414
4E
9
0745-2351
4E
9
A 3095
0745-1718
4E
7
Bos 1077
0748-1924
4E
8
Bur 572
0701-2038
5E
2
Skinner 3
0703-1747
5E
1
Bur 329
0710-1614
5E
1
h3939
Aravamudan
906
0714-1758
5E
1
0718-2053
5E
2
Component
A
B
A
B
A
B
C
A
B
A
B
C
D
E
A
B
C
D
E
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
A
B
A
B
A
B
A
B
A
B
- 60 -
Mag
8.82
9.51
8.94
10.13
8.04
8.17
9.83
8.91
9.22
9.25
10.30
13.80
10.34
13.50
8.97
9.42
10.30
12.14
12.24
8.83
9.32
7.72
9.73
7.44
9.89
9.06
11.40
7.89
9.74
7.27
7.80
7.79
10.24
8.94
9.80
8.14
10.20
8.90
11.40
8.07
8.42
7.61
9.08
10.53
6.71
10.26
9.27
9.86
6.00
11.34
9.51
11.60
8.75
12.30
Separation
—
8.4 =
—
4.4 —
0.4 15.7 +
—
2.9 +
—
4.5 +
9.7 +
44.4 +
24.8 +
—
9.7 8.6 =
121.7
100.6
—
5.5 +
—
5.6 —
4.9 +
—
11.1
—
9.1 +
—
2.9 =
—
10.9 —
6.3 +
—
31.2 +
—
7.4
—
17.3 —
0.6 +
41.3
—
5.2 =
—
5.8 +
—
29.4 —
10.0 +
—
11.8
PA
—
320 —
337 =
—
284 +!!
15.7 +
—
7—
275 +
9.7 +
44.4 +
321 +
—
290 +
8.6 =
121.7
84
—
197 +
—
215 +
—
75 —
129
—
38 +
—
334 +
—
205 +
—
254 +
—
117 —
97
—
280 =
—
304 +
41.3
—
143 =
—
276 +
—
100 +
—
246 =
—
275
Zone 233
Designation
Position
Rating
Map
Tau CMa
0719-2457
5E
3
Argelander 17
0728-2047
5E
5
Hussey 709
0742-1816
5E
7
CPD 4
Aravamudan
2066
Aravamudan
2074
0742-2407
5E
9
0744-2353
5E
9
0748-2413
5E
9
h4003
Aravamudan
1411
0748-2411
5E
9
0754-2155
5E
9
Bur 331
0720-2425
3M
3
Bur 199
0725-2110
3M
5
STF 1011
0701-1519
4M
1
h3933
Aravamudan
32
Hipparcos
1026
0710-1945
4M
2
0714-1620
4M
1
0720-2200
4M
6
STF 1104
0729-1500
4M
4
See 84
0740-1940
4M
5
Holden 90
0741-1629
4M
7
Innes 767
0701-2223
5M
3
Wirtz 11
0703-1642
5M
1
Hipparcos 993
0709-1816
5M
1
Bos 1974
0729-2123
5M
5
Component
A
B
C
D
A
B
A
B
C
D
E
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
C
D
E
A
B
A
B
C
D
A
B
A
B
A
B
A
B
- 61 -
Mag
4.42
10.50
11.20
8.22
9.77
10.51
8.53
11.10
9.57
10.60
11.10
8.28
9.91
8.36
10.80
9.51
9.70
9.46
10.16
8.57
10.11
7.90
8.75
7.23
8.12
12.80
8.70
9.20
8.88
12.90
8.41
12.60
8.75
11.16
6.42
7.68
10.70
11.20
5.93
11.30
9.92
10.23
9.32
11.23
8.05
10.80
6.77
12.00
8.68
11.87
8.99
11.70
Separation
—
8.6 +
15.0 =
84.4 —
26.6 +
—
1.8 24.9 22.4
PA
—
89 +
15.0 =
84.4 —
228 +
—
288 =
24.9 334
—
28.2
—
9.7 —
13.9
—
14.9 —
9
—
2.0 +
—
1.7 =
6.6 +
—
4.3 —
14.7 +
—
8.5
—
16.9 +
—
1.8 2.2 -!!
42.4 +
81.6
—
8.4 —
3.1 +
95.5 8.5 +
—
5.8 +
—
9.2 +
—
14.5 —
11.0 -
—
165
—
318 +
—
118
—
109 —
180
—
117 +
—
24 +
6.6 +
—
300 +
—
151 —
240
—
135 +
—
24 +!!
2.2 -!!
42.4 +
53
—
279 —
277 95.5 8.5 +
—
67 +
—
90 +
—
155 —
148 =
Zone 233
Designation
Position
Rating
Component
Map
Hough 344
0715-2101
3D
2
Howe 18
0734-2342
4D
6
Innes 772
0708-2052
5D
2
Bos 2622
0712-1937
5D
2
A
B
A
B
A
B
A
B
Mag
8.30
9.14
8.05
8.94
6.82
12.00
7.70
12.30
Separation
—
1.4 +
—
1.9 +
—
15.9 +
—
10.0
PA
—
6+
—
204 =
—
326 —
79
Deep Space Objects
Object
NGC 2360
NGC 2362
NGC 2440
NGC 2447
NGC 2409
NGC 2384
Bochum 4
NGC 2421
Ruprecht 34
NGC 2482
Haffner 23
Ruprecht 16
Czernik 29
NGC 2414
NGC 2432
NGC 2455
NGC 2479
NGC 2358
NGC 2367
Trumpler 6
Trumpler 7
NGC 2428
Ruprecht 151
NGC 2383
Haffner 10
Tombaugh 1
Ruprecht 11
PK 232-1.1
Czernik 31
Position
0718-1537
0719-2457
0742-1812
0745-2352
0732-1711
0725-2102
0731-1657
0736-2037
0746-2023
0755-2418
0709-1657
0723-1927
0728-1524
0733-1527
0741-1905
0749-2118
0755-1743
0717-1707
0720-2156
0726-2418
0727-2402
0739-1632
0741-1615
0725-2056
0729-1523
0701-1940
0707-2048
0721-1808
0731-1944
Rating
2E
2E
2E
2E
4E
5E
5E
3M
3M
3M
4M
4M
4M
4M
4M
4M
4M
5M
5M
5M
5M
5M
5M
3D
4D
5D
5D
5D
5D
Map
1
6
7
9
4
5
4
5
8
9
1
5
4
4
5
8
7
1
6
6
6
4
7
5
4
2
2
4
5
Type
Oc (I 3r)
Oc (I 3r)
Pn (5)
Oc (I 3 r)
Oc
Oc (IV 3p)
Oc
Oc (I 2r)
Oc (III 2p)
Oc (IV 1m)
Oc (III 2 m)
Oc
Oc (IV2p)
Oc (I 3m)
Oc (II 2m)
Oc (III 2m)
Oc (III 1m)
Oc
Oc (II 3m)
Oc (III 2p)
Oc (II 3pn)
Oc
Oc (IV 3 m)
Oc (II 3m)
Oc (III 2p)
Oc (III1m:b)
Oc (III 2p)
PN (7)
Oc (III 2m :b)
- 62 -
Specifications
Surface
Mag
Br
7.2
3.9
11.5
6.2
7.4
7.3
8.3
9.5
7.3
Population
80
60
80
15
30
70
35
40
40
15
10.3
7.9
10.2
10.2
9.6
35
50
50
45
7.9
10.0
7.9
30
22
30
8.4
11.5
10.5
11.0
12.6
50
40
45
20
9.0