Zone 66, Master Map
Normal View
e
+52°00'
+54°00'
Zone Master, Normal View, 10 deg FOV
+48°00'
+50°00'
c
ι Talitha
κ
f
d
+46°00'
Ursa Major
Bear Paw Galaxy
Lynx
09h 12m
09h 00m
08h 48m
08h 36m
08h 24m
08h 12m
08h 00m
07h 48m
Zone 66, Map 1
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+55°00'
STF 1234
h2460
h2461
STF 1172
STF 1165
+53°00'
h2434
+54°00'
Stein 2204
Espin 71
h2445
Espin 2629
STF 1225
+51°00'
STF 1250
Espin 909
+52°00'
NGC 2475
STF 1199 rej
A. G. 146
STF 1200
08h 36m
08h 30m
08h 24m
08h 18m
08h 12m
08h 06m
Hipparcos 1136
08h 00m
07h 54m
+50°00'
NGC 2500
Zone 66, Map 1
Mirror Image
STF 1234
+55°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1172
STF 1165
NGC 2446
+53°00'
+54°00'
Stein 2204
Espin 71 h2434
+52°00'
NGC 2475
+51°00'
Espin 2629
STF 1225
h2445
+50°00'
STF 1199 rej
NGC 2500
A. G. 146
STF 1200
07h 54m
Hipparcos 1136
08h 06m
08h 00m
08h 12m
08h 18m
08h 24m
08h 30m
08h 36m
Zone 66, Map 2
Normal Image
+50°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
A. G. 146
STF 1200
h2428
+49°00'
Hipparcos 1136
Hussey 713
+48°00'
NGC 2541
Pulkovo 8
+47°00'
OS 190 rej
STF 1174
STF 1242
h1160
+46°00'
STF 1161
Espin 1144
NGC 2537 Bear Paw Galaxy
Espin 1145
+45°00'
Lynx
STF 1217
08h 36m
08h 30m
08h 24m
08h 18m
08h 12m
08h 06m
08h 00m
07h 54m
Zone 66, Map 2
Mirror Image
+50°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
A. G. 146
STF 1200
+49°00'
Hipparcos 1136
Hussey 713h2428
+48°00'
NGC 2541
Pulkovo 8
+47°00'
OS 190 rej
STF 1174
Ursa Major
h1160
+46°00'
STF 1161
Espin 1144
Espin 1145 Bear Paw Galaxy
NGC 2537
+45°00'
Lynx
STF 1217
07h 54m
08h 00m
08h 06m
08h 12m
08h 18m
08h 24m
08h 30m
08h 36m
Zone 66, Map 3
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+55°00'
STF 1234
A 1584
Stein 2223
+54°00'
h2460
h2461
STF 1293
NGC 2756
+53°00'
NGC 2701
h2445
Espin 2629
STF 1225
+52°00'
STF 1312
STF 1250
Espin 909
NGC 2693
+51°00'
15 UMa
NGC 2681
NGC 2769
+50°00'
Espin 2631
NGC 2639
Argelander 71
09h 06m
09h 00m
08h 54m
08h 48m
08h 42m
08h 36m
08h 30m
08h 24m
Zone 66, Map 3
Mirror Image
+55°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1234
A 1584
+54°00'
h2460
h2461
STF 1293
NGC 2701
+52°00'
+53°00'
h2434
Espin 2629
STF 1225
h2445
Espin 909
+51°00'
NGC 2693
NGC 2681
Espin 2631
NGC 2639
Argelander 71
08h 24m
08h 30m
08h 36m
08h 42m
08h 48m
08h 54m
09h 00m
09h 06m
+50°00'
STF 1250
Zone 66, Map 4
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+50°00'
Espin 2631
NGC 2639
STF 1278
+49°00'
Argelander 71
STF 1256
NGC 2684
h2473
+48°00'
ι
STF 1258
Talitha
Iota UMa
Hussey 720
Engelmann 40
h2457
+47°00'
STF 1310
κ
STF 1242
h1163
Ursa Major
+46°00'
h1160
+45°00'
Espin 596
NGC 2712
09h 06m
09h 00m
08h 54m
08h 48m
08h 42m
08h 36m
08h 30m
08h 24m
Zone 66, Map 4
Mirror Image
Espin 2631
NGC 2639
+50°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Argelander 71
+49°00'
STF 1278
STF 1256
NGC 2684
h2473
ι
+48°00'
STF 1258
Talitha
Iota UMa
Hussey 720
h2457
Engelmann 40
+47°00'
OS 190 rej
κ
Ursa Major
STF 1242
h1163
+46°00'
h1160
STF 1217
08h 24m
+45°00'
Espin 596
NGC 2712
08h 30m
08h 36m
08h 42m
08h 48m
08h 54m
09h 00m
09h 06m
Zone 66
37 Double Stars, 8 Galaxies
A
\NGC 2537 .........................................................15
NGC 2541 ..........................................................15
NGC 2639 ..........................................................21
NGC 2681 ..........................................................20
NGC 2684 ..........................................................29
NGC 2693 ..........................................................20
NGC 2701 ..........................................................22
A 1584..................................................................19
Argelander 71 ...................................................25
E
Engelmann 40 ...................................................26
Espin 1144..........................................................13
Espin 1145..........................................................11
Espin 2629............................................................2
Espin 596 ............................................................24
Espin 71 .................................................................6
Espin 909 ............................................................16
O
OS 190 rej.............................................................9
P
Pulkovo 8 ............................................................10
H
S
h1160 ....................................................................14
h1163 ....................................................................24
h2428 ....................................................................13
h2434 ......................................................................5
h2445 ......................................................................7
h2457 ....................................................................27
h2460 ....................................................................18
h2461 ....................................................................18
h2473 ....................................................................27
Hipparcos 1136 ................................................12
Hussey 713 .........................................................11
Stein 2204 .............................................................3
STF 1161 ............................................................12
STF 1165 ..............................................................2
STF 1172 ..............................................................5
STF 1174 ............................................................10
STF 1199 rej ........................................................4
STF 1200 ..............................................................3
STF 1225 ..............................................................6
STF 1242 ............................................................23
STF 1250 ............................................................17
STF 1256 ............................................................26
STF 1258 ............................................................23
STF 1278 ............................................................25
STF 1293 ............................................................17
I
Iota UMa .............................................................28
N
NGC 2500 ............................................................8
-1-
Zone 66
Zone 66, Map 1
Double Stars
Easy
Espin 2629
Bidelman
Rating: 4 E
Position: 0827+5210
A
B
Magnitude
8.26
10.23
Separation PA
—
—
40.1 +!! 297 +
Year
—
1991
Spectra
K4
K
Colors
Y
Y
Notes:
1903: 16.3 @ 290. 5 measurements.
Observations:
C8 at 104x. Too bad this pair is not brighter!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 30.8 inches; B = 38.8 inches.
Separation: AB = 8.01 miles.
Distance (LY): 128
Total luminosity (Suns): 0.720
STF 1165
ADS 6516; HD 65582; SAO 26629
Rating: 5 E
Position: 0802+5437
A
B
C
Magnitude
8.28
9.70
10.80
Separation
—
0.3 216.9 +
PA
—
306 +!
278 =
-2-
Year
—
1991
1910
Spectra
A0
Colors
W
No
?
Zone 66
Notes:
AB 1831: 0.7 @ 265. 18 measurements.
AC 1881: 216.7 @ 278. 2 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.23 inches.
Separation: AB = 1,478 feet; AC = 206 miles.
Distance (LY): 610
Total luminosity (Suns): 11
Stein 2204
Rating: 5 E
Position: 0814+5423
A
B
Magnitude
10.70
11.10
Separation PA
—
—
10.9
212
Year
—
1911
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C11 at 115x.
STF 1200
HD 68521; SAO 26740
Rating: 5 E
Position: 0815+5006
A
B
Magnitude
8.37
8.47
Separation PA
—
—
8.3 181 =?
-3-
Year
—
1991
Spectra
G0
Colors
W?
W?
Zone 66
Notes:
1830: 8.4 @# 1. 24 measurements. Quadrant reversal?
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 = 17.3 inches.
Separation: AB = 9.84 miles.
Distance (LY): 760
Total luminosity (Suns): 22
STF 1199 rej
HD 68702
Rating: 5 E
Position: 0816+5047
A
B
Magnitude
8.72
11.20
Separation PA
—
—
24.8 2+
Year
—
1926
Spectra
F0
Notes:
1902: 25.2 @ 1. 2 measurements.
Observations:
C8 at 83x. This star is the NE vertex of a right triangle with two 9m stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.9 inches.
Separation: AB = 22.4 miles.
Distance (LY): 580
Total luminosity (Suns): 11
-4-
Colors
bW
W
Zone 66
h2434
Rating: 5 E
Position: 0818+5319
A
B
Magnitude
11.43
12.35
Separation PA
—
—
17.1
48
Year
—
1908
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C11 at 115x.
Moderate
STF 1172
ADS 6545; HD 66067; SAO 26648
Rating: 3 M
Position: 0805+5445
A
B
Magnitude
7.64
9.67
Separation PA
—
—
1.7 +
244 +
Year
—
1995
Notes:
1829: 1.6 @ 242. 15 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.7 inches.
Separation: AB = 2.54 miles.
Distance (LY): 960
Total luminosity (Suns): 78
-5-
Spectra
A0 IV
Colors
W
O
Zone 66
Espin 71
ADS 6657; HD 233501; SAO 26731
Rating: 4 M
Position: 0814+5316
A
B
Magnitude
9.92
10.70
Separation PA
—
—
3.4 +
282 -
Year
—
1991
Spectra
F8
Colors
W
pO
Notes:
1901: 3.1 @ 284. 8 measurements.
Observations:
C11 at 115x.
STF 1225
ADS 6829
Rating: 4 M
Position: 0829+5200
A
B
Magnitude
9.60
9.75
Separation PA
—
—
3.7 +
192 -
Notes:
1831: 3.5 @ 194. 26 measurements.
Observations:
C8 at 104x.
-6-
Year
—
1999
Spectra
A2
Colors
W
W
Zone 66
Difficult
h2445
Rating: 4 D
Sinachopoulos 39 (C); Hipparcos 1213 (a); HD 71427; SAO 26868
Position: 0830+5203
A
B
C
Magnitude
8.61
8.97
13.62
Separation
—
0.9 =
48.3 +
PA
—
318 +
151 -
Year
—
1991
1989
Notes:
AB 1991: 0.9 @ 315. 2 measurements.
AC 1908: 43.9 @ 158. 3 measurements.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.5 inches.
Separation: AB = 1,531 feet; AC = 15.9 miles.
Distance (LY): 211
Total luminosity (Suns): 2.16
-7-
Spectra
G0
Colors
yW
yW
No
Zone 66
Deep Sky Objects
Difficult
NGC 2500
Other Names: UGC 4165, H III 709
Astronomical League Program: Herschel II Club
Rating: 5 D
Position: 0802+5044
Type : Gal
Surface brightness: 13.5
Class: SB(rs)d
Dimensions: 2' x 1.6'
Magnitude : 12.2
Observations:
C8 at 104x. Very faint; is there a foreground star in the line of sight or is it just a
prominent nucleus? There is also a 9m star about 12 min SW.
C11 at 339x. Somewhat large and very low surface brightness. It lies on the long leg
of a very narrow triangle of 12m stars. No prominent nucleus detected.
Distance: 24,000,000 light years
Radial velocity (km/sec): +509
Luminosity: 638,000,000 Suns
-8-
Zone 66
Zone 66, Map 2
Double Stars
Easy
OS 190 rej
ADS 6746; HD 69894; SAO 42302
Rating: 2 E
Position: 0821+4725
A
B
C
Magnitude
8.52
9.74
8.13
Separation
—
38.7 =
78.2 +
PA
—
168 +
286 +?
Year
—
1991
1991
Spectra
F8 V
G5
Colors
Y
bW
Y
Notes:
AB 1867: 38.7 @ 167. 20 measurements.
AC 1867: 78.0 @ 99. 17 measurements. Hipparcos shows the C star to be at a
distance of 1,380 light years. Quadrant reversal?
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.60 inches; C = 19.5 inches.
Separation: AB = 14.9 miles; AC = 30.0 miles.
Distance (LY): 246
Total luminosity (Suns): 5.2
-9-
Zone 66
STF 1174
A 2050 (B); HD 68482; SAO 42239
Rating: 3 E
Position: 0814+4718
A
B
C
Magnitude
8.30
8.50
8.74
Separation
—
0.1 5.8 +
PA
—
78 -!!
216 +
Year
—
1996
1998
Spectra
F5
Colors
O
No
O
Notes:
AB 1909: 0.2 @ 291. 13 measurements.
AC 1830: 5.7 @ 215. 20 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.3 inches.
Separation: AB = 264 feet; AC = 3.25 miles.
Distance (LY): 360
Total luminosity (Suns): 9
Pulkovo 8
Rating: 4 E
Position: 0804+4739
A
B
Magnitude
10.64
10.69
Separation PA
—
—
7.8 +
161 +
Year
—
1979
Notes:
1970: 7.7 @ 160. 6 measurements.
Observations:
C11 at 115x. The PA does not look right-- more like 261?
- 10 -
Spectra
Colors
W
W
Zone 66
Hussey 713
ADS 6541
Rating: 5 E
Position: 0804+4918
A
B
Magnitude
10.02
10.07
Separation PA
—
—
4.5 +
310 -?
Year
—
1991
Spectra
Colors
?
?
Notes:
1901: 4.2 @ 133. 16 measurements. Quadrant reversal?
Hipparcos/Tycho mission data show different distances for these stars (94 and 50 light
years); they may be optical.
Observations:
C8 at 104x. Totally bleak field.
Espin 1145
ADS 6610
Rating: 5 E
Position: 0809+4558
A
B
C
Magnitude
11.69
12.40
14.20
Separation
—
6.4
14.2
PA
—
78
245
Notes:
Both 1 measurement.
Observations:
C11 at 115x.
- 11 -
Year
—
1912
Spectra
Colors
W
W
No
Zone 66
Moderate
STF 1161
ADS 6491; HD 65219; SAO 42109
Rating: 3 M
Position: 0800+4637
A
B
Magnitude
7.89
9.43
Separation PA
—
—
2.9 +
197 +
Year
—
1991
Spectra
G0
Colors
Y
O
Notes:
1830: 2.5 @ 193. 14 measurements.
Observations:
C8 at 280x. At low powers, it is nestled inside a 35 min 9m triangle.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.8 inches.
Separation: AB = 1.71 miles.
Distance (LY): 378
Total luminosity (Suns): 9
Hipparcos 1136
SAO 42110
Rating: 5 M
Position: 0800+4931
A
B
Magnitude
10.58
10.62
Separation PA
—
—
3.0
302
Notes:
1 measurement.
Observations:
C11 at 115x.
- 12 -
Year
—
1991
Spectra
F8
Colors
W
W
Zone 66
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.2 inches.
Separation: AB = 1.16 miles.
Distance (LY): 248
Total luminosity (Suns): 0.553
h2428
ADS 6595; HD 66977; SAO 42182
Rating: 5 M
Position: 0808+4916
A
B
Magnitude
8.82
11.75
Separation PA
—
—
8.3 107 +!
Year
—
1991
Spectra
F5
Colors
W
W
Notes:
1900: 10.9 @ 68. 5 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.7 inches.
Separation: AB = 8.80 miles.
Distance (LY): 680
Total luminosity (Suns): 11.7
Espin 1144
ADS 6596
Rating: 5 M
Position: 0808+4612
A
B
Magnitude
8.77
10.19
Separation PA
—
—
6.6 337 -
- 13 -
Year
—
1997
Spectra
G5
G5
Colors
Y
Y
Zone 66
Notes:
1912: 7.6 @ 338. 8 measurements. The stars show similar proper motions.
There are two more (14.5m) comes.
Observations:
C8 at 104x. It is very, very faint.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.3 inches; B = 21.9 inches.
Separation: AB = 1.23 miles.
Distance (LY): 120
Total luminosity (Suns): 0.4
h1160
HD 70386; SAO 42330
Rating: 5 M
Position: 0824+4648
A
B
Magnitude
8.81
12.40
Separation PA
—
—
28.8 =
150 =
Year
—
1908
Spectra
G5
Colors
yO
W
Notes:
1904: 28.8 @ 150. 2 measurements.
Observations:
C8 at 104x. This pair lies 14 min SE of a 8.1m SAO 42325, in an otherwise bleak
field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.3 inches.
Separation: AB = 72.8 miles.
Distance (LY): 1,620
Total luminosity (Suns): 102
- 14 -
Zone 66
Deep Sky Objects
Moderate
NGC 2537
Other Names: Bear Paw Galaxy; UGC 4274, H IV 55
Rating: 5 M
Position: 0813+4600
Type : Gal
Surface brightness: 12.4
Class: SB(s)m pec
Dimensions: 1.7 x 1.5
Magnitude : 12.3
Observations:
C8 at 83x. It is small, faint, and almost stellar in size. Note the thin sliver of light 17’
SE— this is the edge-on 12.6m galaxy IC 2233.
C11 at 339x. You must get a faint field star just to the W out of the FOV. It is large,
with low surface brightness and a slightly brighter center.
Distance: 19,000,000 light years
Radial velocity (km/sec): +447
Luminosity: 400,000,000 Suns
Difficult
NGC 2541
Other Names: UGC 4284, H III 710
Astronomical League Program: Herschel II Club
Rating: 5 D
Position: 0815+4904
Type : Gal
Surface brightness: 15.1
Class: SA(s)cd
Dimensions: 4.5' x 2'
Magnitude : 12.0
PA: 165
Notes:
Like our own Local Group of galaxies, NGC 2541 is part of a group which includes
NGC 2500, NGC 2537, and NGC 2552. The similarity in distances between these
galaxies and those of the Local Group says much about the non-uniqueness of our corner
of the Universe.
- 15 -
Zone 66
Observations:
C8 at 206x. It is a NNW-SSE oval with an 11m star 15 min E. There is a bright
nucleus, but dim halo.
C11 at 193x. No nucleus seen, but sizeable oval halo set inside an 11m triangle.
Model (where the Sun is a baseball):
Its diameter would be 16 million miles.
Distance (LY): 39,000,000
Radial velocity (km/sec): +559
Luminosity (suns): 2,000,000,000
Zone 66, Map 3
Double Stars
Easy
Espin 909
ADS 6906; HD 73394; SAO 26954
Rating: 3 E
Position: 0840+5145
A
B
C
BC
Magnitude
7.82
11.28
12.50
Separation PA
—
—
57.8 +! 312 =
6.4
276
Year
—
1991
Spectra
G5 III
K0
1910
Notes:
AB 1903: 48 @ 312. 3 measurements.
BC 1 measurement.
Observations:
C8 at 83x. Note two 10m stars 15" apart in pa 180; they lie 3 min N.
- 16 -
Colors
W
O
?
Zone 66
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39.0 inches; B = 28.9 inches.
Separation: AB = 135 miles; BC = 15.0 miles.
Distance (LY): 1,500
Total luminosity (Suns): 107
STF 1250
Opik
Rating: 4 E
Position: 0840+5147
A
B
C
Magnitude
10.30
10.40
6.10
Separation
—
21.5 200.0
PA
—
169 +
150
Year
—
1958
1926
Spectra
G
Colors
W
W
W
Notes:
AB 1831: 21.7 @ 167. 11 measurements. The stars show similar proper motions.
AC 1 measurement.
Observations:
C8 at 104x. Sparse field.
STF 1293
HD 76594; SAO 27071
Rating: 4 E
Position: 0859+5359
A
B
Magnitude
8.94
10.25
Separation PA
—
—
18.6 =
92 =
Notes:
1830: 18.6 @ 92. 11 measurements.
Observations:
C8 at 104x.
- 17 -
Year
—
1991
Spectra
G0
Colors
W
B
Zone 66
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.9 inches.
Separation: AB = 11.1 miles.
Distance (LY): 382
Total luminosity (Suns): 4
Moderate
h2460
Rating: 5 M
Position: 0842+5437
A
B
Magnitude
10.00
12.00
Separation PA
—
—
32.2
31
Year
—
1908
Spectra
Colors
W
?
Notes:
1 measurement.
Observations:
C11 at 110x.
Distance (LY): 600
Total luminosity (Suns): 3.26
h2461
Rating: 5 M
Position: 0842+5437
A
B
Magnitude
9.89
10.89
Separation PA
—
—
19.1 +
95 +
Year
—
1991
Notes:
1894: 18.9 @ 94. 4 measurements.
Observations:
C11 at 115x.
Distance (LY): 600
Total luminosity (Suns): 3.58
- 18 -
Spectra
Colors
W
?
Zone 66
Difficult
A 1584
ADS 7054; HD 75553; SAO 27027
Rating: 5 D
Position: 0853+5458
A
B
Magnitude
7.38
8.28
Separation PA
—
—
0.5 +
68 -!!
Year
—
1997
Spectra
G0
Colors
W
W
Notes:
1907: 0.3 @ 168. 98 measurements.
The orbital period is given as either 74.1 years (Heintz, 1964) or 85 years. If Heintz is
correct, the semi-major axis is 0.42" with direct motion.
Observations:
C8 at 65x. Notched. It forms a small triangle with two 9m stars.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.3 inches.
Separation: AB = 686 feet.
Distance (LY): 178
Total luminosity (Suns): 2.8
- 19 -
Zone 66
Deep Sky Objects
Moderate
NGC 2681
Other Names: UGC 4645, H I 242
Astronomical League Program: Herschel 400 Club
Rating: 4 M
Position: 0854+5119
Type : Gal
Surface brightness: 12.9
Class: (R')SAB(rs)0/a
Dimensions: 3'
Magnitude: 11.3
Notes:
This is a Seyfert galaxy.
Observations:
C8 at 65x. Bright starlike core, with faint edges. Round. Four very faint stars form a
parallelogram around it, including 10m and 11m stars on the W side. A 9m star is 10 min
WNW.
Distance: 33,000,000 light years
Radial velocity (km/sec): +748
Luminosity: 2,600,000,000 Suns
Difficult
NGC 2693
Other Names: H II 823; UGC 4674
Rating: 4 D
Position: 0857+5120
Type : Gal
Surface brightness: 12.7
Class: E3:
Dimensions: 1.8' x 1.4'
Magnitude : 11.9
PA: 160
Observations:
C8 at 206x. Bright starlike nucleus and faint halo. Tube movement and averted
vision helped greatly.
- 20 -
Zone 66
Model (where the Sun is a baseball):
Its diameter would be 56 million miles.
Distance (LY): 330,000,000
Radial velocity (km/sec): +4,998
Luminosity (suns): 150,000,000,000
NGC 2639
Other Names: UGC 4544, H I 204
Astronomical League Program: Herschel II Club
Rating: 5 D
Position: 0844+5012
Type : Gal
Surface brightness: 12.5
Class: (R)SA(r)a:?
Dimensions: 60" x 30"
Magnitude : 12.5
PA: 140
Notes:
This is a Seyfert galaxy and it lies in a field of ten (10) quasars!
Observations:
C8 at 65x. This looks like a faint, fuzzy star, elongated NW-SE. It has a starlike
nucleus and lies 16 min NNE of 8.5m SAO 26972.
C11 at 193x. An oval haze without a nucleus just W of a 3-star chain.
Model (where the Sun is a baseball):
Its diameter would be 12.5 million miles.
Distance (LY): 134,000,000
Radial velocity (km/sec): +3,350
Luminosity (suns): 14,000,000,000
- 21 -
Zone 66
NGC 2701
Other Names: UGC 4695, H IV 66
Rating: 5 D
Position: 0859+5346
Type : Gal
Surface brightness: 13.0
Class: SAB(rs)c: II-III
Dimensions: 2' x 1'
Magnitude : 12.5
PA: 23
Notes:
A quasar lies almost in the same line of sight.
Observations:
C8 at 83x. It is small and faint, with a 12m star just to the W. The nucleus is stellar.
The axis runs NE-SW.
Distance: 100,000,000 light years
Radial velocity (km/sec): +2,326
Luminosity: 7,900,000,000 Suns
- 22 -
Zone 66
Zone 66, Map 4
Double Stars
Easy
STF 1258
ADS 6945; HD 74010; SAO 42512
Rating: 2 E
Position: 0843+4852
A
B
Magnitude
7.69
7.81
Separation PA
—
—
10.1 +
331 =
Year
—
1991
Spectra
F0
F0
Colors
B
R
Notes:
1830: 9.6 @ 331. 58 measurements.
Observations:
C8 at 65x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.2 inches; B = 10.3 inches.
Separation: AB = 5.59 miles.
Distance (LY): 355
Total luminosity (Suns): 16
STF 1242
ADS 6880; SAO 42440
Rating: 3 E
Position: 0836+4707
A
B
Magnitude
9.93
10.49
Separation PA
—
—
2.7 +
173 +
Notes:
1832: 2.6 @ 171. 16 measurements.
- 23 -
Year
—
1991
Spectra
F0
Colors
W
W
Zone 66
Observations:
C11 at 339x.
h1163
SAO 42596
Rating: 3 E
Position: 0855+4656
A
B
Magnitude
9.75
10.22
Separation PA
—
—
16.8 173 +
Year
—
1991
Spectra
G
Colors
W
W?
Notes:
1900: 16.9 @ 172. 6 measurements.
The stars have different proper motions.
Observations:
C11 at 115x.
Espin 596
ADS 6994
Rating: 4 E
Position: 0848+4532
A
B
Magnitude
9.22
10.34
Separation PA
—
—
3.1 +
207 +
Year
—
1991
Notes:
1894: 2.9 @ 203. 8 measurements.
Observations:
C11 at 115x.
Distance (LY): 432
Total luminosity (Suns): 4.16
- 24 -
Spectra
Colors
W
O?
Zone 66
STF 1278
ADS 7029; HD 75214; SAO 42566
Rating: 4 E
Position: 0851+4921
A
B
C
Magnitude
8.50
10.50
11.90
Separation
—
8.7 +
279.2
PA
—
125 146
Year
—
1921
1921
Spectra
F5
Colors
W
O
W?
Notes:
AB 1829: 8.4 @ 126. 8 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical.
AC 1 measurement.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.4 inches.
Separation: AB = 3.46 miles; AC = 111 miles.
Distance (LY): 255
Total luminosity (Suns): 2.4
Argelander 71
ADS 7068
Rating: 4 E
Position: 0855+4954
A
B
Magnitude
10.11
10.09
Separation PA
—
—
5.3 +
338 +
Year
—
1997
Spectra
G5
Colors
Y
Y
Notes:
1901: 5.2 @ 337. 5 measurements.
Hipparcos gives discordant distances: 600 light years (A) and 245 (B). The stars also
have different proper motions.
Observations:
C11 at 115x.
- 25 -
Zone 66
STF 1256
ADS 6938; HD 73932; SAO 42507
Rating: 5 E
Position: 0843+4918
A
B
Magnitude
8.59
10.64
Separation PA
—
—
27.8 +
216 +
Year
—
1991
Spectra
K2
Colors
yO
R
Notes:
1830: 25.5 @ 212. 10 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 27.8 inches.
Separation: AB = 69.8 miles.
Distance (LY): 1,610
Total luminosity (Suns): 112
Engelmann 40
HD 75488; SAO 42578
Rating: 5 E
Position: 0852+4734
A
B
C
Magnitude
8.18
9.91
10.57
Separation
—
166.8 +
222.9 +
PA
—
322 +
281 +
Notes:
AB 1873: 155.9 @ 321. 4 measurements.
AC 1893: 220.4 @ 280. 4 measurements.
Observations:
C11 at 115x.
- 26 -
Year
—
1919
1919
Spectra
G2 V
Colors
yW
W
W
Zone 66
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.30 inches.
Separation: AB = 49.5 miles; AC = 66.0 miles.w
Distance (LY): 190
Total luminosity (Suns): 2.00
Moderate
h2457
Rating: 5 M
Position: 0839+4729
A
B
C
Magnitude
10.67
12.81
13.30
Separation
—
14.3
28.4
PA
—
264
290
Year
—
1908
1908
Spectra
Colors
W
?
W?
Notes:
AB and AC, 1 measurement.
Observations:
C11 at 115x. It is the middle star of a crooked five-star chain.
h2473
Rating: 5 M
Position: 0858+4854
A
B
Magnitude
8.47
12.73
Separation PA
—
—
17.2
245
Notes:
1 measurement.
Observations:
C11 at 193x.
- 27 -
Year
—
1900
Spectra
K0
Colors
Y
?
Zone 66
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.0 inches.
Separation: AB = 7.05 miles.
Distance (LY): 263
Total luminosity (Suns): 2.20
Difficult
Iota UMa
Rating: 5 D
9 UMa; Talitha, "the heel", h2477; OS 196ADS 7114; HD 76644; SAO 42630
Position: 0859+4802
A
B
Magnitude
3.12
10.80
Separation PA
—
—
3.9 24 +
Year
—
1971
Spectra
A7 IV
M1 V
Colors
Y
?
Notes:
1841: 11.0 @ 350. 60 measurements.
This pair has an orbital period of 817.9 years (Hopmann, 1973). The faint companion
is a spectroscopic binary with a 39.69 year period. Each star is about 1% as bright as the
Sun, and are 11 AU apart (the distance from the Sun to Saturn).
The primary rotates at 151 km/sec, and the system belongs to the Hyades Group. It is
also an infra-red source and a Delta Scuti variable.
John Herschel thought that B shown by reflected light.
Observations:
C8 at 206x. Use a diffraction mask for best effect.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.20 inches; B = 48.8 inches.
Separation: AB = 1,531 feet; Bb = 312 feet.
Distance (LY): 48
Total luminosity (Suns): 10.46
- 28 -
Zone 66
Deep Sky Objects
Difficult
NGC 2684
Other Names: H III 712, UGC 4662
Rating: 5 D
Position: 0855+4908
Type : Gal
Surface brightness: 12.1
Class: S?
Dimensions: 0.9' x 0.8'
Magnitude : 12.9
Observations:
C8 at 206x. It presented a stellar nucleus withou halo; very faint and best seen with
averted vision and tube movement.
Radial velocity (km/sec): +2,860
- 29 -
Zone 66
Zone 66 Mini-Catalog
Double Stars
Double
Position
Rating
Map
OS 190 rej
0821+4725
2E
2
STF 1258
0843+4852
2E
4
STF 1174
0814+4718
3E
2
STF 1242
0836+4707
3E
4
Espin 909
0840+5145
3E
3
h1163
0855+4656
3E
4
Pulkovo 8
0804+4739
4E
2
Espin 2629
0827+5210
4E
1
STF 1250
0840+5147
4E
3
Espin 596
0848+4532
4E
4
STF 1278
0851+4921
4E
4
Argelander 71
0855+4954
4E
4
STF 1293
0859+5359
4E
3
STF 1165
0802+5437
5E
1
Hussey 713
0804+4918
5E
2
Espin 1145
0809+4558
5E
2
Stein 2204
0814+5423
5E
1
STF 1200
0815+5006
5E
1
STF 1199 rej
0816+5047
5E
1
h2434
0818+5319
5E
1
Comp
A
B
C
A
B
A
B
C
A
B
A
B
C
BC
A
B
A
B
A
B
A
B
C
A
B
A
B
C
A
B
A
B
A
B
C
A
B
A
B
C
A
B
A
B
A
B
A
B
- 30 -
Mag
8.52
9.74
8.13
7.69
7.81
8.30
8.50
8.74
9.93
10.49
7.82
11.28
12.50
9.75
10.22
10.64
10.69
8.26
10.23
10.30
10.40
6.10
9.22
10.34
8.50
10.50
11.90
10.11
10.09
8.94
10.25
8.28
9.70
10.80
10.02
10.07
11.69
12.40
14.20
10.70
11.10
8.37
8.47
8.72
11.20
11.43
12.35
Sep
—
38.7 =
78.2 +
—
10.1 +
—
0.1 5.8 +
—
2.7 +
—
57.8 +!
PA
—
168 +
78.2 +
—
331 =
—
78 -!!
5.8 +
—
173 +
—
312 =
6.4
—
16.8 —
7.8 +
—
40.1 +!!
—
21.5 200.0
—
3.1 +
—
8.7 +
279.2
—
5.3 +
—
18.6 =
—
0.3 216.9 +
—
4.5 +
—
6.4
14.2
—
10.9
—
8.3 —
24.8 —
17.1
276
—
173 +
—
161 +
—
297 +
—
169 +
200.0
—
207 +
—
125 279.2
—
338 +
—
92 =
—
306 +!
216.9 +
—
310 -?
—
78
14.2
—
212
—
181 =?
—
2+
—
48
Zone 66
Double
Position
Rating
Map
STF 1256
0843+4918
5E
4
Engelmann 40
0852+4734
5E
4
STF 1161
0800+4637
3M
2
STF 1172
0805+5445
3M
1
Espin 71
0814+5316
4M
1
STF 1225
Hipparcos
1136
0829+5200
4M
1
0800+4931
5M
2
h2428
0808+4916
5M
2
Espin 1144
0808+4612
5M
2
h1160
0824+4648
5M
2
h2457
0839+4729
5M
4
h2461
0842+5437
5M
3
h2460
0842+5437
5M
3
h2473
0858+4854
5M
4
A 1584
0853+5458
5D
3
Iota UMa
0859+4802
5D
4
Comp
A
B
A
B
C
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
Mag
8.59
10.64
8.18
9.91
10.57
7.89
9.43
7.64
9.67
9.92
10.70
9.60
9.75
10.58
10.62
8.82
11.75
8.77
10.19
8.81
12.40
10.67
12.81
13.30
9.89
10.89
10.00
12.00
8.47
12.73
7.38
8.28
3.12
10.80
Sep
—
27.8 +
—
166.8 +
222.9 +
—
2.9 +
—
1.7 +
—
3.4 +
—
3.7 +
—
3.0
—
8.3 —
6.6 —
28.8 =
—
14.3
28.4
—
19.1 +
—
32.2
—
17.2
—
0.5 +
—
3.9 -
PA
—
216 +
—
322 +
222.9 +
—
197 +
—
244 +
—
282 —
192 —
302
—
107 +!
—
337 —
150 =
—
264
28.4
—
95 +
—
31
—
245
—
68 -!!
—
24 +
Deep Sky Objects
Object
NGC 2681
NGC 2537
NGC 2693
NGC 2500
NGC 2541
NGC 2639
NGC 2684
NGC 2701
Position
0854+5119
0813+4600
0857+5120
0802+5044
0815+4904
0844+5012
0855+4908
0859+5346
Rating
4M
5M
4D
5D
5D
5D
5D
5D
Map
3
2
3
1
2
3
4
3
Type and Class
Gal ((R')SAB(rs)0/a)
Gal (SB(s)m pec)
Gal (E3:)
Gal (SB(rs)d)
Gal (SA(s)cd)
Gal ((R)SA(r)a:?)
Gal (S?)
Gal (SAB(rs)c: II-III)
- 31 -
Mag
11.3
12.3
11.9
12.2
12.0
12.5
12.9
12.5
Surf Br
12.9
12.4
12.7
13.5
15.1
12.5
12.1
13.0
Population