Zone 93, Master Map
Normal View
Zone Master, Normal View, 10 deg FOV
+44°00'
Ursa Major
ψ
+42°00'
c
+40°00'
e
ω
d
+36°00'
f
+38°00'
Leo Minor
12h 00m
11h 48m
11h 36m
11h 24m
11h 12m
11h 00m
Zone 93, Map 1
Normal Image
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1542
Psi UMaψ
+44°00'
h2554
NGC 3675
ω
Kuiper 53
Engelmann 45
+43°00'
h2557
+42°00'
Espin 2637
h2564
NGC 3600
+41°00'
OS 234
h494
NGC 3648
11h 30m
11h 24m
11h 18m
11h 12m
11h 06m
11h 00m
Zone 93, Map 1
Mirror Image
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
ψ
STF 1542
Psi UMa
+44°00'
h2554
STF 1485 rej
NGC 3675
+43°00'
h2557
Kuiper 53
+42°00'
Engelmann 45
Espin 2637
h2564
OS 234
h494
NGC 3648
11h 00m
11h 06m
11h 12m
11h 18m
11h 24m
11h 30m
+41°00'
NGC 3600
Zone 93, Map 2
Normal Image
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h494
NGC 3648
+39°00'
57 UMa
NGC 3665
h2561
h2555
+38°00'
Hough 378
Hough 377
Kustner 36
NGC 3652
STF 1494
STF 1533
Kazeza 2
Kazeza 11
+37°00'
OS 232
h499
Kazeza 10
Hough 46
Lalande 21185
h500
OSS 108
Hough 47
Kazeza 15
Kazeza 12
11h 30m
11h 24m
11h 18m
11h 12m
Kazeza 8
Kazeza 5
11h 06m
11h 00m
+36°00'
h496
Zone 93, Map 2
Mirror Image
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h494
NGC 3648
+39°00'
57 UMa
NGC 3665
h2561
h2555
+38°00'
Hough 378
Hough 377
Kustner 36
NGC 3652
STF 1494
+37°00'
OS 232
STF 1533
Kazeza 2
Kazeza 11
h499
Kazeza 10
Hough 46
Lalande 21185
h500
OSS 108
Hough 47
Kazeza 8
Kazeza 5
11h 00m
11h 06m
11h 12m
Kazeza 15
Kazeza 12
11h 18m
11h 24m
11h 30m
+36°00'
h496
Zone 93, Map 3
Normal Image
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1561
h842
STF 1542
NGC 3938
NGC 4013
STF 1574
+44°00'
NGC 4051
Espin 123
+43°00'
STF 1589
67 UMa
OS 240
+42°00'
IC 750
STF 1594
+41°00'
OS 234
OS 237
STF 1585
A 1996
STF 1586
12h 00m
11h 54m
11h 48m
11h 42m
11h 36m
11h 30m
Zone 93, Map 3
Mirror Image
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1561
h842
STF 1542
Espin 123
STF 1574NGC 3938
+44°00'
NGC 4051
NGC 4013
67 UMa
OS 240
+43°00'
STF 1589
NGC 3675
+42°00'
IC 750
OS 237
STF 1585
A 1996
STF 1586
11h 30m
11h 36m
11h 42m
11h 48m
11h 54m
12h 00m
+41°00'
STF 1594
OS 234
Zone 93, Map 4
Normal Image
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h508
+39°00'
57 UMa
+38°00'
STF 1569
+37°00'
h510
NGC 3941
OSS 114
h499
h500
OS 241
12h 00m
11h 54m
11h 48m
11h 42m
11h 36m
11h 30m
+36°00'
NGC 3813
Zone 93, Map 4
Mirror Image
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
h508
+39°00'
57 UMa
STF 1569
+38°00'
NGC 3665
+37°00'
h510
NGC 3941
OSS 114
NGC 3813
+36°00'
h499
h500
OS 241
11h 30m
11h 36m
11h 42m
11h 48m
11h 54m
12h 00m
Zone 93
Index
1 Reference Star, 34 Double Stars, 1 Dwarf Star,
10 Galaxies
Flamsteed
K
57 UMa ................................................ 14
Kazeza 11............................................. 15
Kuiper 53 ............................................... 7
Kustner 36............................................ 11
A
A 1996 ................................................. 21
L
E
Lalande 21185...................................... 16
Engelmann 45 ........................................ 6
Espin 123 ............................................. 22
Espin 2637 ............................................. 7
N
NGC 3600 ............................................ 10
NGC 3648 ............................................ 17
NGC 3652 ............................................ 17
NGC 3665 ............................................ 17
NGC 3675 .............................................. 9
NGC 3813 ............................................ 27
NGC 3938 ............................................ 23
NGC 3941 ............................................ 27
NGC 4013 ............................................ 23
H
h2554 ..................................................... 4
h2557 ..................................................... 5
h2561 ................................................... 12
h2564 ..................................................... 5
h494 ....................................................... 4
h496 ..................................................... 13
h499 ..................................................... 14
h500 ..................................................... 25
h508 ..................................................... 25
h510 ..................................................... 26
h842 ..................................................... 18
Hough 377 ............................................. 3
Hough 378 ............................................. 6
Hough 47 ............................................. 13
O
OS 232 ................................................. 16
OS 234 ................................................... 8
OS 237 ................................................. 20
OS 240 ................................................. 19
OS 241 ................................................. 26
OSS 108 ............................................... 12
I
P
IC 750 .................................................. 22
Psi UMa ................................................. 3
-1-
Zone 93
S
STF 1574.............................................. 20
STF 1585.............................................. 19
STF 1586.............................................. 21
STF 1533 ............................................. 11
STF 1542 ............................................... 9
STF 1569 ............................................. 24
-2-
Zone 93
Zone 93, Map 1
Reference Star
Psi UMa (52 UMa; HD 96833; SAO 43629)
Position: 1110+4430
Mag : 3
Assumed distance: 147 light years
Spectrum : K1 III Color : pO
Assumed luminosity (suns): 108
Notes:
This star is an infra-red source.
Double Stars
Easy
Hough 377
Hertzsprung 8 (C); ADS 8046; HD 95934; SAO 62387
Rating: 4 E
Position: 1104+3815
A
B
C
Magnitude
6.01
11.60
7.50
Separation
—
8.1 150.3
PA
—
249 83
Year
—
1958
1907
Spectra
A2 III
F2
Colors
W
No
W
Notes:
AB 1891: 8.4 @ 250. 10 measurements.
AC 1 measurement.
May be optical because Hipparcos gives different distances (263 and 223 light years).
Observations:
C8 at 104x. It forms the W vertex of a 7m diamond.
-3-
Zone 93
h2554
HD 95768; SAO 43594
Rating: 4 E
Position: 1104+4420
A
B
Magnitude
7.33
9.47
Separation PA
—
—
40.4 -! 291 +
Year
—
1991
Spectra
Am
Colors
Y
B
Notes:
1894: 51.9 @ 278. 7 measurements.
Hipparcos/Tycho mission data show different distances for these stars (284 and 910
light years); they may be optical.
Observations:
C8 at 83x. This pair forms the W vertex of a flat triangle with 7.5m SAO 43508 to
the E and 9.1m SAO 43595 to the N.
h494
SAO 43646
Rating: 4 E
Position: 1113+4011
A
B
Magnitude
10.55
10.85
Separation PA
—
—
30.7 +
142 -?
Year
—
1991
Spectra
F8
G0
Colors
W
W
Notes:
1895: 29.0 @ 332. 10 measurements. The 1895 WDS data shows a quadrant
reversal.
This system may be optical as the stars appear to be at different distances and have
different proper motions.
Observations:
C11 at 115x.
-4-
Zone 93
h2564
ADS B5727; SAO 43674
Rating: 4 E
Position: 1117+4214
A
B
Magnitude
9.36
11.14
Separation PA
—
—
32.0 133 +
Year
—
1991
Spectra
K2
Colors
yW
W
Notes:
1895: 32.4 @ 128. 5 measurements.
Hipparcos/Tycho mission data show different distances for these stars (126 and 38
light years); they may be optical.
Observations:
C8 at 104x. Bright field.
h2557
Rating: 5 E
Position: 1108+4329
A
B
Magnitude
10.98
10.97
Separation PA
—
—
22.8 +
28 =?
Year
—
1991
Spectra
F8
Colors
W
W
Notes:
1895: 22.2 @ 208. 9 measurements. Quadrant reversal?
This system may be optical as the stars appear to be at different distances and have
different proper motions.
Observations:
C11 at 115x.
-5-
Zone 93
Engelmann 45
Bpm 136 (b)HD 97194; SAO 43641
Rating: 5 E
Position: 1112+4250
A
B
b
Bb
Magnitude
7.19
8.26
12.80
Separation PA
—
—
134.9 247 =
132.5
336
Year
—
1991
Spectra
F8
G5
Colors
W
Y
?
1908
Notes:
AB 1893: 135.2 @ 247. 13 measurements.
Bb 1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.2 inches; B = 19.7 inches.
Separation: AB = 30.7 miles; Bb = 30.1 miles.
Distance (LY): 146
Total luminosity (Suns): 3.06
Moderate
Hough 378
Schembor 1 (C); ADS 8047; HD 96016; SAO 62395
Rating: 3 M
Position: 1105+3825
A
B
C
Magnitude
7.83
8.80
13.50
Separation
—
1.0 +
120.9 +
PA
—
237 +
286 =
Notes:
AB 1891: 0.4 @ 219. 59 measurements.
AC 1925: 121 @ 286. 2 measurements.
-6-
Year
—
1997
1926
Spectra
F7 V
Colors
W
W
?
Zone 93
Observations:
C11 at 339x! Very bright and rich field.
Espin 2637
ADS 8015; HD 95296; SAO 43565
Rating: 5 M
Position: 1101+4244
A
B
Magnitude
6.69
11.27
Separation PA
—
—
13.3 203 +
Year
—
1934
Spectra
K0 III
Colors
O
B?
Notes:
1913: 13.5 @ 200. 2 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 14.3 miles.
Distance (LY): 690
Total luminosity (Suns): 80
Difficult
Kuiper 53
HD 95241; SAO 43564
Rating: 4 D
Position: 1100+4255
A
B
Magnitude
6.03
13.24
Separation PA
—
—
37.1
151
-7-
Year
—
1958
Spectra
F9 V
Colors
Y
?
Zone 93
Notes:
1 measurement.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 31.5 inches.
Separation: AB = 8.56 miles.
Distance (LY): 148
Total luminosity (Suns): 6.909
OS 234
ADS 8189; HD 100018; SAO 43789
Rating: 4 D
Position: 1131+4117
A
B
Magnitude
6.95
7.35
Separation PA
—
—
0.5 +
162 -
Year
—
1999
Spectra
F6 V
Notes:
1843: 0.3 @ 180. Over 100 measurements.
Orbital period of 87 years, with semi-major axis of 0.39", motion direct.
Also a spectroscopic binary, period of 7.40 days.
Observations:
C11 at 634x. Elongation only.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.20 inches.
Separation: AB = 1,003 feet.
Distance (LY): 255
Total luminosity (Suns): 14.3
-8-
Colors
W
W
Zone 93
STF 1542
ADS 8171; HD 99607; SAO 43750
Rating: 5 D
Position: 1128+4434
A
B
Magnitude
6.84
10.25
Separation PA
—
—
3.3 +
267 +
Year
—
2000
Spectra
F0 V
Colors
W
W
Notes:
1831: 2.5 @ 265. 19 measurements.
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.70 inches.
Separation: AB = 1.27 miles.
Distance (LY): 248
Total luminosity (Suns): 9.5
Deep Sky Objects
Moderate
NGC 3675
Other Names: UGC 3675, H I 194
Astronomical League Program: Herschel 400 Club
Rating: 4 M
Position: 1126+4335
Type : Gal
Surface brightness: 13.3
Class: Sa
Dimensions: 3.5' x 1.3'
Notes:
Member of the Canes Venatici II Cloud.
This galaxy produced supernova 1984R.
-9-
Magnitude : 11.4
PA: 178
Zone 93
Observations:
C8 at 65x. Oriented N to S, it has a grainy look. There is an oval core (very dense).
Distance: 32,000,000 light years
Radial velocity (km/sec): +721
Luminosity: 2,300,000,000 Suns
Difficult
NGC 3600
Other Names: H II 709, UGC 6283
Rating: 5 D
Position: 1116+4136
Type : Gal
Surface brightness: 12.9
Class: Sa?
Dimensions: 4.2' x 1.0'
Magnitude : 11.7
PA: 3
Observations:
C8 at 104x. Tube movement suggests a very faint streak (E-W), but no details picked
up. Two bright stars (7.3m, 8.0m) lie 15 min NE.
Distance: 32,000,000 light years
Radial velocity (km/sec): +719
Luminosity: 1,700,000,000 Suns
- 10 -
Zone 93
Zone 93, Map 2
Double Stars
Easy
Kustner 36
ADS 8090
Rating: 3 E
Position: 1113+3811
A
B
Magnitude
10.78
10.79
Separation PA
—
—
8.8 137 =
Year
—
1991
Spectra
G0
G0
Colors
W
W
Notes:
1901: 8.9 @ 137. 9 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.6 inches; B = 19.6 inches.
Separation: AB = 1.00 mile.
Distance (LY): 73
Total luminosity (Suns): 0.040
STF 1533
HD 98744; SAO 62514
Rating: 3 E
Position: 1122+3705
A
B
Magnitude
9.25
9.47
Separation PA
—
—
23.2 +
172 -
- 11 -
Year
—
1992
Spectra
G0
Colors
yW
W
Zone 93
Notes:
AB 1829: 23.1 @ 173. 20 measurements. This system may be optical as the stars
appear to be at different distances (660 light years and 2,250 light years). The parallaxes
are different too.
Observations:
C11 at 115x.
h2561
Rating: 4 E
Position: 1110+3840
A
B
Magnitude
10.14
13.93
Separation PA
—
—
14.7 223 +
Year
—
1991
Spectra
F5
Colors
W
?
Notes:
1926: 14.9 @ 221. 2 measurements.
A measure by Schembor: 1926.08, 23.2 @ 173.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.6 inches.
Separation: AB = 20.6 miles.
Distance (LY): 900
Total luminosity (Suns): 5.77
OSS 108
HD 97334; SAO 62451
Rating: 4 E
Position: 1113+3549
A
B
C
D
BD
Magnitude
6.41
7.20
12.30
7.50
Separation
—
154.8 +!!
85.5 152.9+!!
PA
—
68 147 68-
- 12 -
Year
—
1994
1984
1984
Spectra
G0 V
K0
Colors
W
pO
No
No
Zone 93
Notes:
AB 1876: 128.4 @ 72. 15 measurements.
AC 1910: 88.3 @ 160. 3 measurements.
BD 1825: 83.6 @ 88. 2 measurements.
Hipparcos/Tycho data show different distances for these stars (71 and 428 light
years); they may be optical. The stars have different proper motions.
Observations:
C8 at 104x. Stars B and C are terribly difficult. A nice 10m isosceles triangle is to
the SE.
Hough 47
ADS 8031; HD 95658; SAO 62374
Rating: 5 E
Position: 1103+3540
A
B
Magnitude
8.69
10.06
Separation PA
—
—
122.4 +
285 -
Year
—
1982
Spectra
A0m
Colors
W
bW
Notes:
1883: 120.1 @ 286. 6 measurements.
The stars show similar proper motions, although Hipparcos gives different distances
(1,090 and 83 light years).
Observations:
C8 at 104x. Lalande 21185, a dwarf , lies 16 min S.
h496
ADS B5751
Rating: 5 E
Position: 1122+3647
A
B
Magnitude
9.85
10.73
Separation PA
—
—
33.3 +
333 +
Notes:
1905: 28.3 @ 329. 7 measurements.
- 13 -
Year
—
1991
Spectra
K0
Colors
Y
pB
Zone 93
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 27.0 inches.
Separation: AB = 9.00 miles.
Distance (LY): 173
Total luminosity (Suns): 0.4
h499
SAO 62568
Rating: 5 E
Position: 1128+3618
A
B
Magnitude
9.35
11.86
Separation PA
—
—
39.7 +
254 =
Year
—
1991
Spectra
K0
Colors
W
bW
Notes:
1906: 39.6 @ 254. 6 measurements.
Observations:
C8 at 104x.
Moderate
57 UMa
STF 1543; ADS 8175; HD 99787; SAO 62572
Rating: 1 M
Position: 1129+3920
A
B
C
Magnitude
5.30
8.93
11.50
Separation
—
5.5 +
216.6 +
PA
—
357 9=
- 14 -
Year
—
1995
1910
Spectra
A1 V
Colors
Y
dR
?
Zone 93
Notes:
AB 1831: 5.4 @ 11. Over 100 measurements. Star A is a spectroscopic binary and
rotates at 176 kps.
The visual binary orbit takes 4,500 years. The stars share common proper motion.
AC 1879: 216.5 @ 9. 2 measurements.
There are several other faint and distant companions.
Observations:
C8 at 206x. Beautiful pair! Webb saw them as W and W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.70 inches.
Separation: AB = 1.79 miles; AC = 70.6 miles.
Distance (LY): 209
Total luminosity (Suns): 29.2
Kazeza 11
Rating: 5 M
Position: 1112+3654
A
B
Magnitude
7.45
13.37
Separation PA
—
—
43.2
250
Year
—
1984
Notes:
1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.7 inches.
Separation: AB = 39.8 miles.
Distance (LY): 590
Total luminosity (Suns): 29
- 15 -
Spectra
G5
Colors
Y
?
Zone 93
Difficult
OS 232
CHARA 192 (a); ADS 8102; HD 97731; SAO 62460
Rating: 2 D
Position: 1115+3735
A
B
Magnitude
7.53
8.15
Separation PA
—
—
0.6 +
243 -!!
Year
—
1997
Spectra
G5
Colors
Y
Y
Notes:
1843: 0.3 @ 48. 51 measurements.
Observations:
C11 at 634x.
Distance (LY): 1,550
Total luminosity (Suns): 290
Deep Sky Objects
Easy
Lalande 21185
Rating: 3 E
Position: 1103+3557
Type : Dwarf star
Notes:
Its actual luminosity is only 0.0048 that of the Sun, and has 0.30 times the Sun's mass.
There is an unseen companion of 0.01 solar masses.
It is the 4th nearest star after the Sun (then Alpha Centauri, Barnard's Star, and Wolf
359).
Observations:
C8 at 104x.
Distance (LY): 8
Luminosity (suns): 0.005
- 16 -
Zone 93
Moderate
NGC 3648
Other Names: UGC 6389
Rating: 3 M
Position: 1123+3953
Type : Gal
Surface brightness: 12.4
Class: S0
Dimensions: 1.3' x 0.8'
Magnitude : 12.6
PA: 75
Observations:
C8 at 104x. I noticed a small, bright star-like nucleus and a tiny halo around it. A
5.8m star is 20 min due N.
Radial velocity (km/sec): +1,988
NGC 3652
Other Names: H II 775, UGC 6392
Astronomical League Program: Herschel II Club
Rating: 4 M
Position: 1123+3746
Type : Gal
Surface brightness: 12.9
Class: SBc
Dimensions: 2.9' x 0.8'
Magnitude : 12.2
PA: 150
Observations:
C8 at 104x. An extremely faint oval smudge (NW-SE axis) with no bright center.
C11 at 115x. Small, round, moderately brighter middle, almost stellar.
Distance: 91,000,000 light years
Radial velocity (km/sec): +1,997
Luminosity: 8,600,000,000 Suns
NGC 3665
Other Names: UGC 6426, H I 219
Astronomical League Program: Herschel 400 Club
Rating: 4 M
Position: 1125+3846
Type : Gal
Surface brightness: 13.3
Class: SA(s)0o
Dimensions: 3.5'
- 17 -
Magnitude : 12.1
PA: 30
Zone 93
Notes:
This galaxy produced supernova 2002hl (type Ia).
Observations:
C8 at 83x. Very bright, with a starlike nucleus. High powers do not help much. The
axis runs NE-SW. It lies midway between 5.5m 55 UMa and 5.5m 57 UMa.
C11 at 115x. Fairly large and bright, with a gradually brighter center.
Distance: 88,000,000 light years
Radial velocity (km/sec): +2,011
Luminosity: 8,800,000,000 Suns
Zone 93, Map 3
Double Stars
Easy
h842
ADS 8324
Rating: 3 E
Position: 1152+4449
A
B
Magnitude
8.67
9.41
Separation PA
—
—
3.0 89 -
Year
—
1998
Notes:
1882: 3.1 @ 90. 23 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.6 inches.
Separation: AB = 2.62 miles.
Distance (LY): 560
Total luminosity (Suns): 12.6
- 18 -
Spectra
G0
Colors
W
W
Zone 93
OS 240
ADS 8338; HD 103272; SAO 43938
Rating: 4 E
Position: 1154+4255
A
B
Magnitude
7.31
10.80
Separation PA
—
—
8.4 318 -
Year
—
1929
Spectra
F5
Colors
yW
?
Notes:
1843: 9.0 @ 323. 11 measurements.
Observations:
C8 at 83x. Star B is very difficult.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.5 inches.
Separation: AB = 4.91 miles.
Distance (LY): 375
Total luminosity (Suns): 13.7
STF 1585
ADS 8356; HD 103707; SAO 43954
Rating: 4 E
Position: 1157+4102
A
B
Magnitude
8.53
10.77
Separation PA
—
—
5.5 =
106 +
Year
—
1991
Notes:
1832: 5.5 @ 105. 10 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 10.0 miles.
Distance (LY): 1,170
Total luminosity (Suns): 47
- 19 -
Spectra
K0 III
Colors
Y
W?
Zone 93
STF 1574
ADS 8321; HD 102957; SAO 43914
Rating: 5 E
Position: 1151+4405
A
B
Magnitude
9.53
12.20
Separation PA
—
—
9.4 +
6=
Year
—
1986
Spectra
G
Colors
Y
W
Notes:
1831: 9.3 @ 6. 5 measurements.
Observations:
C11 at 115x.
OS 237
ADS 8252; HD 101207; SAO 43844
Rating: 3 M
Position: 1139+4109
A
B
Magnitude
7.77
9.07
Separation PA
—
—
2.0 +
246 -!
Year
—
1999
Notes:
1843: 0.6 @ 294. 97 measurements.
Observations:
C11 at 193x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.90 inches.
Separation: AB = 3,907 feet.
Distance (LY): 240
Total luminosity (Suns): 4.57
- 20 -
Spectra
F7 V
Colors
W
W
Zone 93
STF 1586
ADS 8358; HD 103739; SAO 43958
Rating: 3 M
Position: 1157+4021
A
B
Magnitude
8.54
10.14
Separation PA
—
—
1.6 254 +
Year
—
1997
Spectra
F8
Colors
W
yW
Notes:
1832: 1.8 @ 247. 21 measurements.
Observations:
C11 at 193x. This pair is the west-most star of a small, bright triangle.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.5 inches.
Separation: AB = 1.23 miles.
Distance (LY): 494
Total luminosity (Suns): 9
A 1996
ADS 8241; HD 100919; SAO 43826
Rating: 4 M
Position: 1137+4040
A
B
Magnitude
9.94
9.97
Separation PA
—
—
2.0 +
189 +
Notes:
1909: 1.7 @ 181. 26 measurements.
Observations:
C11 at 193x.
- 21 -
Year
—
1999
Spectra
K0
Colors
Y
Y
Zone 93
Espin 123
ADS 8280
Rating: 5 M
Position: 1144+4411
A
B
C
Magnitude
11.47
11.22
10.98
Separation
—
6.7 =
44.2 +
PA
—
204 =
274 -
Year
—
1971
1971
Spectra
Colors
W
W
W
Notes:
AB 1895: 6.7 @ 204. 12 measurements.
AC 1895: 43.9 @ 275. 10 measurements.
Observations:
C11 at 115x.
Distance (LY): 47
Total luminosity (Suns): 0.017
Deep Sky Objects
Moderate
IC 750
Other Names: UGC 6973
Rating: 3 M
Position: 1159+4243
Type : Gal
Surface brightness: 13.3
Class: Sab:
Dimensions: 3' x 1.5'
Magnitude : 11.8
PA: 43
Notes:
This galaxy forms a pair with IC 749, which lies only 36,000 light years from it.
Observations:
C8 at 206x. NE-SW smudge with no sign of a nucleus. Averted vision helps it grow.
Use high power (it takes it well).
It lies 3 min E of a 8m star.
Distance: 52,000,000 light years
Luminosity: 4,000,000,000 Suns
- 22 -
Zone 93
Difficult
NGC 4013
Other Names: H II 733, UGC 6963
Astronomical League Program: Herschel II Club
Rating: 4 D
Position: 1159+4358
Type : Gal
Surface brightness: 12.8
Class: SAb
Dimensions: 5.1' x 1.1'
Magnitude : 11.2
PA: 66
Notes:
The structure of this galaxy is very similar to NGC 891- especially the very fine
sprays of dust lanes that rise perpendicular to the disk. The actual core of the galaxy is
hidden by the central obscuring dust lane. The superimposed (foreground) star is in our
own galaxy and just happens to look like an offset core.
This galaxy produced supernova 1989Z. (However, there is some suspicion that it
may be a variable star within our own Galaxy.)
Observations:
C8 at 83x. It looked like an extremely faint cigar with no details; very uniform.
Oriented ENE to WSW.
Model (where the Sun is a baseball):
Its diameter would be 17 million miles.
Distance (LY): 36,000,000
Radial velocity (km/sec): +931
Luminosity (suns): 3,400,000,000
NGC 3938
Other Names: UGC 6856, H I 203
Astronomical League Program: Herschel 400 Club
Rating: 5 D
Position: 1153+4407
Type : Gal
Surface brightness: 13.6
Class: SA(s)c
Dimensions: 5' x 4'
Observations:
C8 at 65x. Very faint. It has a bright and tiny nucleus.
- 23 -
Magnitude : 11.2
Zone 93
Distance: 36,000,000 light years
Radial velocity (km/sec): +922
Luminosity: 3,400,000,000 Suns
Zone 93, Map 4
Double Stars
Easy
STF 1569
ADS 8286; HD 101977; SAO 62678
Rating: 3 E
Position: 1144+3900
A
B
Magnitude
8.62
10.63
Separation PA
—
—
3.6 =
323 -
Year
—
1997
Notes:
1831: 3.6 @ 324. 12 measures.
Observations:
C11 at 115x!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.8 inches.
Separation: AB = 5.50 miles.
Distance (LY): 980
Total luminosity (Suns): 31
- 24 -
Spectra
F0
Colors
W
rO
Zone 93
h500
SAO 62587
Rating: 4 E
Position: 1132+3552
A
B
Magnitude
10.96
10.97
Separation PA
—
—
25.1 28 +
Year
—
1991
Spectra
G
Colors
W
O?
Notes:
1880: 25.2 @ 27. 9 measurements.
Observations:
C11 at 115x.
h508
ADS 8272; HD 101675
Rating: 4 E
Position: 1142+3940
A
B
Magnitude
9.00
10.45
Separation PA
—
—
11.8 +
128 =
Year
—
1991
Spectra
G5 III
Colors
Y
rO
Notes:
1828: 11.3 @ 128. 12 measurements.
Hipparcos/Tycho mission data show different distances for these stars (276 and 690
light years); they may be optical.
Observations:
C8 at 104x. It lies 5 min N of a 10m pair 60" apart.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39.0 inches.
Separation: AB = 5.08 miles.
Distance (LY): 276
Total luminosity (Suns): 1.9
- 25 -
Zone 93
h510
ADS B5932
Rating: 5 E
Position: 1150+3741
A
B
C
Magnitude
11.29
11.63
11.22
Separation
—
1.4 +
24.8 -
PA
—
24 250 -
Year
—
1991
1930
Spectra
M0 V
Colors
bW
No
bW
Notes:
AB 1991: 1.2 @ 28. 2 measurements.
AC 1880: 25.4 @ 253. 6 measurements.
Observations:
C8 at 104x. Looks more like 11.5m and 11.8m.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 1.20 inches.
Separation: AB = 2,957 feet; AC = 10.0 miles.
Distance (LY): 259
Total luminosity (Suns): 0.4
Difficult
OS 241
ADS 8368; HD 103928; SAO 62774
Rating: 4 D
Position: 1156+3527
A
B
Magnitude
6.42
8.70
Separation PA
—
—
1.6 +
145 +
Notes:
1843: 1.0 @ 119. Over 100 measurements.
Observations:
C8 at 104x. The galaxy NGC 3995 is 6 min W.
- 26 -
Year
—
1998
Spectra
A9 V
Colors
W
W
Zone 93
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.30 inches.
Separation: AB = 2,006 feet.
Distance (LY): 155
Total luminosity (Suns): 5.9
Deep Sky Objects
Moderate
NGC 3813
Other Names: UGC 6651, H I 94
Astronomical League Program: Herschel 400 Club
Rating: 4 M
Position: 1141+3633
Type : Gal
Surface brightness: 12.3
Class: SA(rs)b:
Dimensions: 2.3' x 1'
Magnitude : 11.7
PA: 87
Observations:
C8 at 206x. It shows a starlike nucleus with an E-W halo about 13 min E of 7.8m
SAO 62647. It does not improve with higher power.
Distance: 61,000,000 light years
Radial velocity (km/sec): +1,465
Luminosity: 6,100,000,000 Suns
NGC 3941
Other Names: UGC 6857, H I 173
Astronomical League Program: Herschel 400 Club
Rating: 5 M
Position: 1153+3659
Type : Gal
Surface brightness: 12.6
Class: SB(s)0o
Dimensions: 2' x 1'
Magnitude : 11.3
PA: 10
Observations:
C8 at 65x. It has a bright nucleus with N-S axis.
Distance: 42,000,000 light years
Radial velocity (km/sec): +984
Luminosity: 4,200,000,000 Suns
- 27 -
Zone 93
Zone 93 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
Kustner 36
1113+3811
3E
2
STF 1533
1122+3705
3E
2
STF 1569
1144+3900
3E
4
h842
1152+4449
3E
3
Hough 377
1104+3815
4E
1
h2554
1104+4420
4E
1
h2561
1110+3840
4E
2
OSS 108
1113+3549
4E
2
h494
1113+4011
4E
1
h2564
1117+4214
4E
1
h500
1132+3552
4E
4
h508
1142+3940
4E
4
OS 240
1154+4255
4E
3
STF 1585
1157+4102
4E
3
Hough 47
1103+3540
5E
2
h2557
1108+4329
5E
1
Engelmann 45
1112+4250
5E
1
h496
1122+3647
5E
2
h499
1128+3618
5E
2
h510
1150+3741
5E
4
Component
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
C
D
BD
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
b
Bb
A
B
A
B
A
B
C
- 28 -
Mag
10.78
10.79
9.25
9.47
8.62
10.63
8.67
9.41
6.01
11.60
7.50
7.33
9.47
10.14
13.93
6.41
7.20
12.30
7.50
10.55
10.85
9.36
11.14
10.96
10.97
9.00
10.45
7.31
10.80
8.53
10.77
8.69
10.06
10.98
10.97
7.19
8.26
12.80
9.85
10.73
9.35
11.86
11.29
11.63
11.22
Separation
—
8.8 —
23.2 +
—
3.6 =
—
3.0 —
8.1 150.3
—
40.4 -!
—
14.7 —
154.8 +!!
85.5 -
PA
—
137 =
—
172 —
323 —
89 —
249 150.3
—
291 +
—
223 +
—
68 85.5 -
152.9+!!
—
30.7 +
—
32.0 —
25.1 —
11.8 +
—
8.4 —
5.5 =
—
122.4 +
—
22.8 +
—
134.9 -
68—
142 -?
—
133 +
—
28 +
—
128 =
—
318 —
106 +
—
285 —
28 =?
—
247 =
132.5
—
33.3 +
—
39.7 +
—
1.4 +
24.8 -
336
—
333 +
—
254 =
—
24 24.8 -
Zone 93
Designation
Position
Rating
Map
STF 1574
1151+4405
5E
3
57 UMa
1129+3920
1M
2
Hough 378
1105+3825
3M
1
OS 237
1139+4109
3M
3
STF 1586
1157+4021
3M
3
A 1996
1137+4040
4M
3
Espin 2637
1101+4244
5M
1
Kazeza 11
1112+3654
5M
2
Espin 123
1144+4411
5M
3
OS 232
1115+3735
2D
2
Kuiper 53
1100+4255
4D
1
OS 234
1131+4117
4D
1
OS 241
1156+3527
4D
4
STF 1542
1128+4434
5D
1
Component
A
B
A
B
C
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
A
B
Mag
9.53
12.20
5.30
8.93
11.50
7.83
8.80
13.50
7.77
9.07
8.54
10.14
9.94
9.97
6.69
11.27
7.45
13.37
11.47
11.22
10.98
7.53
8.15
6.03
13.24
6.95
7.35
6.42
8.70
6.84
10.25
Separation
—
9.4 +
—
5.5 +
216.6 +
—
1.0 +
120.9 +
—
2.0 +
—
1.6 —
2.0 +
—
13.3 —
43.2
—
6.7 =
44.2 +
—
0.6 +
—
37.1
—
0.5 +
—
1.6 +
—
3.3 +
PA
—
6=
—
357 216.6 +
—
237 +
120.9 +
—
246 -!
—
254 +
—
189 +
—
203 +
—
250
—
204 =
44.2 +
—
243 -!!
—
151
—
162 —
145 +
—
267 +
Deep Space Objects
Object
Lalande
21185
NGC 3648
IC 750
NGC 3652
NGC 3665
NGC 3675
NGC 3813
NGC 3941
NGC 4013
NGC 3600
NGC 3938
Position
Rating
Map
1103+3557
1123+3953
1159+4243
1123+3746
1125+3846
1126+4335
1141+3633
1153+3659
1159+4358
1116+4136
1153+4407
3E
3M
3M
4M
4M
4M
4M
5M
4D
5D
5D
2
2
3
2
2
1
4
4
3
1
3
Type
Dwf ()
Gal (S0)
Gal (Sa)
Gal (SBc)
Gal (SA(s)0o)
Gal (Sa)
Gal (SA(rs)b:)
Gal (SB(s)0o)
Gal (SAb)
Gal (Sa?)
Gal (SA(s)c)
- 29 -
Specifications
Surface
Mag
Br
12.6
11.8
12.2
12.1
11.4
11.7
11.3
11.2
11.7
11.2
12.4
13.3
12.9
13.3
13.3
12.3
12.6
12.8
12.9
13.6
Population