Zone 230, Master Map
Normal View
-14°00'
Zone Master, Normal View, 10 deg FOV
Lepus
-16°00'
Hind's Crimson Star
d
-24°00'
f
-22°00'
-20°00'
-18°00'
c
e
τ9
τ8
05h 04m
04h 56m
04h 48m
04h 40m
04h 32m
04h 24m
04h 16m
04h 08m
04h 00m
Zone 230, Map 1
Normal Image
-16°00'
h3615
-15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-17°00'
h3629
-18°00'
Engelmann 17
-19°00'
Upton 1
04h 30m
04h 25m
04h 20m
04h 15m
04h 10m
04h 05m
04h 00m
Zone 230, Map 1
Mirror Image
-15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-16°00'
h3615
-17°00'
h3629
-18°00'
Engelmann 17
-19°00'
Upton 1
04h 00m
04h 05m
04h 10m
04h 15m
04h 20m
04h 25m
04h 30m
Zone 230, Map 2
Normal Image
-21°00'
-20°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Bos 1935
NGC 1518
Bur 184
τ9
See 37
04h 30m
04h 25m
04h 20m
04h 15m
04h 10m
04h 05m
04h 00m
-24°00'
-23°00'
-22°00'
Aravamudan 1268
Zone 230, Map 2
Mirror Image
-21°00'
-20°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Bos 1935
NGC 1518
Bur 184
-24°00'
-23°00'
-22°00'
Aravamudan 1268
τ9 Tau 9 Eri
04h 00m
04h 05m
04h 10m
04h 15m
04h 20m
04h 25m
04h 30m
Zone 230, Map 3
Normal Image
-15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-16°00'
R Lep
h3705
Bur 314
-17°00'
h3653
-19°00'
-18°00'
Argelander 11
54 Eri
Howe 11
05h 00m
04h 55m
04h 50m
04h 45m
04h 40m
04h 35m
04h 30m
Zone 230, Map 3
Mirror Image
h3705
-16°00'
-15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-17°00'
h3653
-19°00'
-18°00'
Argelander 11
54 Eri
Howe 11
04h 30m
04h 35m
04h 40m
04h 45m
04h 50m
04h 55m
05h 00m
Zone 230, Map 4
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Aravamudan 840
Aravamudan 841
-20°00'
Howe 11
NGC 1640
LDS 122
-24°00'
-23°00'
-22°00'
Bur 1236
-21°00'
h3700
05h 00m
04h 55m
h3702
h3664
04h 50m
04h 45m
04h 40m
04h 35m
See 37
04h 30m
Zone 230, Map 4
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
-20°00'
Howe 11
NGC 1640
Aravamudan 840
Aravamudan 841
LDS 122
-21°00'
h3700
-24°00'
-23°00'
-22°00'
Bur 1236
See 37
04h 30m
h3664
04h 35m
04h 40m
04h 45m
04h 50m
h3702
04h 55m
05h 00m
Zone 230
2 Reference Stars, 18 Double Stars, 2 Galaxies
Flamsteed
h3629 ..................................................... 3
h3653 ..................................................... 8
h3700 ................................................... 11
h3705 ..................................................... 9
Howe 11................................................. 9
54 Eri ..................................................... 7
A
Aravamudan 1268.................................. 4
Aravamudan 840.................................. 13
Aravamudan 841.................................. 12
Argelander 11 ........................................ 8
L
LDS 122............................................... 11
B
N
Bos 1935 ................................................ 5
Bur 1236 .............................................. 13
Bur 184 .................................................. 6
Bur 314 ................................................ 10
NGC 1518 .............................................. 6
NGC 1640 ............................................ 14
E
See 37................................................... 12
Engelmann 17 ........................................ 2
T
H
Tau 9 Eri ................................................ 4
h3615 ..................................................... 2
U
S
Upton 1 .................................................. 3
-1-
Zone 230
Zone 230, Map 1
Double Stars
Easy
h3615
Rating: 4 E
HD 25573; SAO 149336
Position: 0403-1509
A
B
Magnitude
9.04
10.41
Separation PA
—
—
20.0 149 -
Year
—
1991
Spectra
G8 IV/V
Colors
pY
W
Notes:
1903: 25.3 @ 157. 8 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.2 feet.
Separation: AB = 173 miles.
Distance (LY): 5,530
Total luminosity (Suns): 740
Engelmann 17
Bpm 50 (a); HD 26360; SAO 149415
Rating: 4 E
Position: 0410-1729
A
B
Magnitude
7.96
8.28
Separation PA
—
—
119.9 136 -
Notes:
1894: 126.3 @ 139. 12 measurements.
-2-
Year
—
1991
Spectra
G8 IV
Colors
Y
Y
Zone 230
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.1 inches.
Separation: AB = 114 miles.
Distance (LY): 610
Total luminosity (Suns): 33
Upton 1
Rating: 4 E
ADS 3047; HD 26529
Position: 0411-1826
A
B
Magnitude
8.05
9.92
Separation PA
—
—
4.1 95 -
Year
—
1991
Spectra
F3/5 V
Colors
W
pB
Notes:
1876: 7.4 @ 98. 20 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.6 inches.
Separation: AB = 2.00 miles.
Distance (LY): 313
Total luminosity (Suns): 5.44
h3629
Rating: 4 E
ADS 3077; HD 26850; SAO 149473
Position: 0414-1633
A
B
Magnitude
8.74
11.01
Separation PA
—
—
15.2 274 -
-3-
Year
—
1991
Spectra
M2 IV
Colors
rO
W
Zone 230
Notes:
1900: 17.6 @ 276. 8 measurements.
Observations:
C11 at 115x. A nice intense color in A!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.44 inches.
Separation: AB = 5,010 feet.
Distance (LY): 40
Total luminosity (Suns): 0.045
Zone 230, Map 2
Reference Star
Tau 9 Eri (36 Eri; HD 25267; SAO 169017)
Position: 0400-2401
Mag : 4.60
Spectrum : ApSiv
Color : W
Assumed distance: 331 light years
Assumed luminosity (suns): 126
Notes:
Star A is a spectroscopic binary with a 5.9537 day period.
Double Stars
Easy
Aravamudan 1268
Rating: 5 E
HD 27094; SAO 169278
Position: 0416-2140
A
B
Magnitude
10.01
10.98
Separation PA
—
—
13.6 +
256 =
-4-
Year
—
1991
Spectra
Colors
W
W
Zone 230
Notes:
1920: 13.0 @ 265. 4 measurements.
Observations:
C11 at 115x.
Distance (LY): 109
Total luminosity (Suns): 0.131
Moderate
Bos 1935
LPM 6168 (C); HD 27701; SAO 169366
Rating: 5 M
Position: 0422-2055
A
B
C
Magnitude
8.78
10.01
11.53
Separation
—
0.3 =
58.9 -
PA
—
107 +
326 -
Year
—
1991
1979
Notes:
AB 1930: 0.3 @ 88. 3 measurements.
AC 1960: 61 @ 328. 2 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.5 in.
Separation: AB = 294 feet; AC = 11.0 miles.
Distance (LY): 119
Total luminosity (Suns): 0.372
-5-
Spectra
K1 V
Colors
Y
W
Zone 230
Difficult
Bur 184
Rating: 5 D
ADS 3247; HD 28396; SAO 169475
Position: 0428-2130
A
B
Magnitude
6.75
7.70
Separation PA
—
—
1.8 +
250 -
Year
—
1991
Spectra
F5
Colors
W
W
Notes:
1873: 1.2 @ 271. 44 measurements.
Observations:
C8 at 280x. Notched.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.33 inches.
Separation: AB = 5,265 feet.
Distance (LY): 355
Total luminosity (Suns): 20
Deep Sky Objects
Difficult
NGC 1518
Other Names: PGC 14475
Rating: 5 D
Position: 0407-2111
Type: Gal
Surface brightness: 13.2
Class: SB(s)dm
Dimensions: 2.6' x 1'
Magnitude: 11.8
PA: 33
Observations:
C8 at 65x. Extremely faint; averted vision is a must!
Distance (LY): 35,000,000
Radial velocity (km/sec): +927
Total luminosity (Suns): 1,900,000,000
-6-
Zone 230
Zone 230, Map 3
Reference Star
54 Eri (DM Eri; HD 29755; SAO 149818; Achernar)
Position: 0440-1940
Mag : 4.32
Spectrum : M4 III
Color : O
Assumed distance: 361 light years
Assumed luminosity (suns): 200
Notes:
This star is an infra-red source.
From James Kaler's Star Notes:
The name, from an Arabic phrase, means "the end of the river," is appropriate for the
star that ends the southerly flow of Eridanus, the River... Achnernar is so far south that it
was not originally part of this long, thin constellation, which originally ended at Acamar
(Theta Eridani), from which Achernar took its name when the river was allowed in more
modern times to flow farther to the south.
Achernar, a hot, blue class B star, is hotter than Rigel in Orion. Yet surprisingly, for
such a bright star, its temperature is not well known, various measurements running from
14,500 to 19,300 Kelvin... The radius then ranges from 8.5 to 6.6 times solar, the former
agreeing well with direct measurements of angular diameter. Achernar has a high spin
velocity of at least 250 kilometers per second, which helps turn it into a "Be," or "Bemission" star that has a belt of emitting gas circulating in its equator, Achernar losing
mass at a rate thousands of times that of the Sun. Achernar is also a member of a peculiar
class of "Lambda Eridani" stars that show tiny but very regular periodic light variations
that may be caused by actual complex pulsations or by rotation and dark "starspots." No
one really knows. We do know, however, that Achernar is massive, containing six to
eight times the solar mass. It is now normally fusing hydrogen into helium in its deep
core and will eventually die as a massive white dwarf like Sirius-B.
-7-
Zone 230
Double Stars
Easy
Argelander 11
Rating: 3 E
Position: 0447-1715
A
B
Magnitude
7.22
9.46
Separation PA
—
—
29.9 =
235 =
Year
—
1969
Spectra
G0 V
G2 V
Colors
Y
W
Notes:
1903: 29.9 @ 235. 6 measurements.
Observations:
C8 at 104x. It is 20 min S of a 7m star.
h3653
Rating: 4 E
HD 28680; SAO 149695
Position: 0431-1627
A
B
Magnitude
8.01
9.61
Separation PA
—
—
40.2 157 +
Year
—
1991
Spectra
G5
Colors
Y
bW
Notes:
1896: 42.8 @ 156. 13 measurements
May be optical because Hipparcos gives different distances (630 and 52 light years).
Observations:
C11 at 115x.
-8-
Zone 230
h3705
Rating: 4 E
ADS 3556; HD 31636; SAO 150011
Position: 0457-1608
A
B
Magnitude
7.46
10.68
Separation PA
—
—
22.3 =
142 +
Year
—
1991
Spectra
A0 V
Colors
W
R
Notes:
1880: 22.3 @ 141. 7 measurements.
Observations:
C8 at 104x. Moderately rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.0 inches.
Separation: AB = 27.1 miles.
Distance (LY): 780
Total luminosity (Suns): 50
Moderate
Howe 11
Rating: 5 M
ADS 3376
Position: 0440-1954
A
B
Magnitude
10.10
10.34
Separation PA
—
—
3.5 +
100 -
Notes:
1876: 2.0 @ 110. 14 measurements.
Observations:
C8 at 206x.
-9-
Year
—
1991
Spectra
G0 V
Colors
?
?
Zone 230
Scale model (in which the Sun is the size of a baseball):
Diameter: A < 1 inch.
Separation: AB = 1,067 feet.
Distance (LY): 37
Total luminosity (Suns): 0.02
Difficult
Bur 314
Rating: 3 D
ADS 3588; HD 31925; SAO 150052
Position: 0459-1623
A
B
C
Magnitude
5.65
7.30
10.32
Separation
—
0.8 +
52.1 -
PA
—
326 47 +
Year
—
1999
1967
Spectra
F2 V
F9 V
Colors
Y
?
B
Notes:
AB 1876: 0.4 @ 330. 72 measurements.
The orbital period is 54.62 years (van Dessel, 1978) with semi-major axis of 0.50"
and retrograde motion.
Observations:
C8 at 280x, where AB was elongated.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.10 inches; B = 31.5 inches.
Separation: AB = 929 feet; AC = 11.5 miles.
Distance (LY): 141
Total luminosity (Suns): 9.5
- 10 -
Zone 230
Zone 230, Map 4
Double Stars
Easy
h3700
Rating: 4 E
ADS 3511; HD 31225; SAO 169847
Position: 0453-2046
A
B
Magnitude
7.02
11.52
Separation PA
—
—
26.9 +
347 =
Year
—
1904
Spectra
A3pec
Colors
yW
B??
Notes:
1835: 19.0 @ 347. 4 measurements.
Hipparcos/Tycho mission data show different distances for these stars (600 and 54
light years); they may be optical.
Observations:
C8 at 104x.
LDS 122
Rating: 5 E
HD 28995
Position: 0433-2108
A
B
Magnitude
9.79
11.10
Separation PA
—
—
248.0
193
Year
—
1960
Spectra
G0
Colors
W
?
Notes:
1 measurement.
May be optical because Hipparcos gives different distances (253 and 960 light years).
The Tycho-2 Catalog indicates a single star entry.
Observations:
C11 at 115x.
- 11 -
Zone 230
Aravamudan 841
Rating: 5 E
HD 31044; SAO 169824
Position: 0452-2025
A
B
Magnitude
9.69
12.30
Separation PA
—
—
10.5 197 -
Year
—
1996
Spectra
Colors
W
O?
Notes:
1919: 10.7 @ 199. 4 measurements.
Observations:
C11 at 115x.
Distance (LY): 233
Total luminosity (Suns): 0.616
Moderate
See 37
Rating: 5 M
ADS 3282; HD 28753; SAO 169530
Position: 0431-2459
A
B
Magnitude
8.30
11.60
Separation PA
—
—
12.9 +
34 -
Year
—
1991
Notes:
1897: 11.8 @ 38. 8 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 36.0 inches.
Separation: AB = 17.7 miles.
Distance (LY): 880
Total luminosity (Suns): 30
- 12 -
Spectra
K0 IV
Colors
O
W
Zone 230
Difficult
Bur 1236
Rating: 3 D
ADS 3375; HD 29674; SAO 169640
Position: 0440-2115
A
B
C
Magnitude
7.18
10.34
9.03
Separation
—
1.5 +
40.4 +
PA
—
99 314 =
Year
—
1991
1991
Spectra
K0 III
G0
Colors
O
?
R
Notes:
AB 1891: 1.4 @ 118. 11 measurements.
AC 1891: 40.2 @ 314. 13 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches; C = 3.45 inches.
Separation: AB = 3,448 feet; AC = 17.6 miles.
Distance (LY): 279
Total luminosity (Suns): 10.2
Aravamudan 840
Rating: 5 D
HD 30627; SAO 169781
Position: 0449-2025
A
B
Magnitude
8.60
8.70
Separation PA
—
—
1.4
117
Year
—
1917
Spectra
F8
Colors
W
W
Notes:
1 measurement.
No evidence up duplicity is seen by Hipparcos. The Tycho-2 Catalog indicates a
single star entry.
Observations:
C8 at 280x. Notched.
- 13 -
Zone 230
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.60 inches
Separation: AB = 3,761 feet
Distance (LY): 326
Total luminosity (Suns): 7
Deep Sky Objects
Moderate
NGC 1640
Other Names: PGC 15850
Rating: 5 M
Position: 0442-2026
Type: Gal
Surface brightness: 13.2
Class: SB(r)b
Dimensions: 2' x 1'
Magnitude: 12.5
PA: 46
Notes:
This galaxy produced SN 1990AJ (type Ib).
Observations:
C8 at 65x. It is nestled inside a triangle of 9m stars. It has an E-W axis and a bright
nucleus.
Distance (LY): 61,000,000
Radial velocity (km/sec): +1,602
Total luminosity (Suns): 3,000,000,000
- 14 -
Zone 230
Zone 230 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
Argelander 11
0447-1715
3E
3
h3615
0403-1509
4E
1
Engelmann 17
0410-1729
4E
1
Upton 1
0411-1826
4E
1
h3629
0414-1633
4E
1
h3653
0431-1627
4E
3
h3700
0453-2046
4E
4
h3705
Aravamudan
1268
0457-1608
4E
3
0416-2140
5E
2
LDS 122
Aravamudan
841
0433-2108
5E
4
0452-2025
5E
4
Bos 1935
0422-2055
5M
2
See 37
0431-2459
5M
4
Howe 11
0440-1954
5M
3
Bur 1236
0440-2115
3D
4
Bur 314
0459-1623
3D
3
Bur 184
Aravamudan
840
0428-2130
5D
2
0449-2025
5D
4
Component
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
C
A
B
C
A
B
A
B
Mag
7.22
9.46
9.04
10.41
7.96
8.28
8.05
9.92
8.74
11.01
8.01
9.61
7.02
11.52
7.46
10.68
10.01
10.98
9.79
11.10
9.69
12.30
8.78
10.01
11.53
8.30
11.60
10.10
10.34
7.18
10.34
9.03
5.65
7.30
10.32
6.75
7.70
8.60
8.70
Separation
—
29.9 =
—
20.0 —
119.9 —
4.1 —
15.2 —
40.2 —
26.9 +
—
22.3 =
—
13.6 +
—
248.0
—
10.5 —
0.3 =
58.9 —
12.9 +
—
3.5 +
—
1.5 +
40.4 +
—
0.8 +
52.1 —
1.8 +
—
1.4
PA
—
235 =
—
149 —
136 —
95 —
274 —
157 +
—
347 =
—
142 +
—
256 =
—
193
—
197 —
107 +
58.9 —
34 —
100 —
99 40.4 +
—
326 52.1 —
250 —
117
Deep Space Objects
Object
NGC 1640
NGC 1518
Position
0442-2026
0407-2111
Rating
5M
5D
Map
4
2
Type
Gal (SB(r)b)
Gal (SB(s)dm)
- 15 -
Specifications
Surface
Mag
Br
12.5
13.2
11.8
13.2
Population