Zone 90, Master Map
Normal View
Zone Master, Normal View, 10 deg FOV
+44°00'
Lynx
+42°00'
c
d
+36°00'
f
+38°00'
+40°00'
e
Gemi
09h 00m
08h 48m
08h 36m
08h 24m
08h 12m
08h 00m
Zone 90, Map 1
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+45°00'
Lynx
Espin 590
31 Lyn
+42°00'
OS 189
Espin 18
South 565
+43°00'
+44°00'
STF 1217
+41°00'
STF 1176
Espin 593
NGC 2476
NGC 2493
08h 36m
08h 30m
08h 24m
08h 18m
08h 12m
08h 06m
08h 00m
07h 54m
Zone 90, Map 1
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+45°00'
Lynx
31 Lyn
OS 189
Espin 18
South 565
STF 1176
+42°00'
Espin 590
+43°00'
+44°00'
STF 1217
+41°00'
Weisse 16
Espin 593
NGC 2476
NGC 2493
07h 54m
08h 00m
08h 06m
08h 12m
08h 18m
08h 24m
08h 30m
08h 36m
Zone 90, Map 2
Normal Image
NGC 2476
+39°00'
NGC 2493
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+38°00'
STF 1211
STF 1204
Hussey 1122
STF 1184
+37°00'
STF 1239
Espin 1732
STF 1222
+36°00'
Hussey 849
NGC 2543
Espin 2159
Fox 156
h3308
OSS 91
08h 30m
08h 24m
08h 18m
h436
08h 12m
08h 06m
08h 00m
Zone 90, Map 2
Mirror Image
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 2476
+39°00'
NGC 2493
+38°00'
STF 1211
STF 1204
Hussey 1122
STF 1184
Espin 1732
STF 1222
+37°00'
STF 1239
Hussey 849
+36°00'
Couteau 2075
NGC 2543
Espin 2159
Fox 156
h3308
OSS 91
h436
08h 00m
08h 06m
08h 12m
08h 18m
08h 24m
08h 30m
Zone 90, Map 3
Normal Image
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+44°00'
NGC 2712
STF 3120
Espin 18
+42°00'
31 Lyn
+43°00'
STF 1289
OS 566
Barton 101
+41°00'
STF 1263
STF 1251
Kustner 96
A. G. 160
09h 06m
09h 00m
08h 54m
STF 1279
08h 48m
08h 42m
08h 36m
08h 30m
08h 24m
Zone 90, Map 3
Mirror Image
STF 1217
+44°00'
NGC 2712
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+43°00'
STF 3120
STF 1289
+42°00'
31 Lyn
Espin 18
South 565
OS 566
Barton 101
+41°00'
STF 1263
STF 1251
Kustner 96
STF 1279
08h 24m
08h 30m
08h 36m
08h 42m
08h 48m
08h 54m
09h 00m
09h 06m
Zone 90, Map 4
Normal Image
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
A. G. 160
+39°00'
STF 1279
Bur 209
+38°00'
STF 1259
STF 1274
+37°00'
STF 1239
NGC 2638
+36°00'
Ali 353
h793
STF 1282
STF 1296
STF 1272
09h 00m
08h 54m
08h 48m
08h 42m
08h 36m
08h 30m
Zone 90, Map 4
Mirror Image
+40°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+39°00'
STF 1279
Bur 209
+38°00'
STF 1259
STF 1274
Espin 1732
STF 1222
+37°00'
STF 1239
NGC 2638
+36°00'
Ali 353
h793
STF 1282
STF 1296
STF 1272
08h 30m
08h 36m
08h 42m
08h 48m
08h 54m
09h 00m
Zone 90
Index
1 Reference Star, 31 Double Stars, 3 Galaxies
Flamsteed
N
31 Lyn.................................................... 2
NGC 2493 ............................................ 12
NGC 2543 ............................................ 13
NGC 2638 ............................................ 25
A
Ali 353 ................................................. 23
O
B
Bur 209 ................................................ 24
OS 189 ................................................... 5
OSS 91 ............................................. 7, 14
E
S
Espin 1732 ....................................... 9, 16
Espin 18 ................................................. 5
Espin 2159 ....................................... 8, 15
Espin 593 ............................................... 3
South 565 ............................................... 4
STF 1176................................................ 2
STF 1184.......................................... 6, 14
STF 1204.......................................... 8, 16
STF 1211........................................ 10, 18
STF 1217................................................ 3
STF 1222.......................................... 9, 17
STF 1239.............................................. 21
STF 1259.............................................. 22
STF 1274.............................................. 22
STF 1279.............................................. 24
STF 1282.............................................. 23
F
Fox 156 .......................................... 10, 17
H
h3308 ............................................... 7, 15
h436 ............................................... 12, 19
h793 ..................................................... 21
Hussey 1122 .................................. 11, 19
Hussey 849 ...................................... 6, 20
-1-
Zone 90
Zone 90, Map 1
Reference Star
31 Lyn (Alsciaukat; HD 70272; SAO 42319)
Position: 0823+4311
Mag : 4.25
Spectrum : K5 III Color : Y
Assumed distance: 389 light years
Assumed luminosity (suns): 230
Notes:
This star emits strongly in both the ultra-violet and infra-red.
Double Stars
Easy
STF 1176
ADS 6572; HD 66661; SAO 42171
Rating: 3 E
Position: 0806+4159
A
B
Magnitude
8.04
10.32
Separation PA
—
—
22.6 +
30 +
Year
—
1991
Notes:
1830: 22.3 @ 28. 7 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.1 inches.
Separation: AB = 25.7 miles.
Distance (LY): 730
Total luminosity (Suns): 33
-2-
Spectra
F5
Colors
W
yO
Zone 90
Espin 593
ADS 6700; SAO 42264
Rating: 3 E
Position: 0817+4053
A
B
C
BC
Magnitude
9.21
9.39
10.10
Separation PA
—
—
20.5 +
341 +!
4.5 +
211 =
Year
—
1987
Spectra
G0
Colors
Y
bW
No
1987
Notes:
AB 1908: 19.8 @ 230. 5 measurements.
BC 1894: 4.4 @ 211. 8 measurements.
Observations:
C8 at 104x. This pair forms the NW vertex of a 9m isosceles triangle (with 10 min
legs and an 8 min base).
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.1 inches.
Separation: AB = 11.9 miles; BC = 2.60 miles.
Distance (LY): 371
Total luminosity (Suns): 4
STF 1217
ADS 6783; HD 70516; SAO 42337
Rating: 3 E
Position: 0824+4457
A
B
Magnitude
7.71
9.25
Separation PA
—
—
29.6 243 +
Year
—
1998
Spectra
G0
K0
Colors
W
O
Notes:
1830: 29.8 @ 241. 21 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. However, the stars show large common
proper motion.
-3-
Zone 90
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.6 inches; B = 26.13 inches.
Separation: AB = 5.54 miles.
Distance (LY): 120
Total luminosity (Suns): 1.1
South 565
OSS 93HD 70647; SAO 42342
Rating: 3 E
Position: 0825+4200
A
B
C
BC
Magnitude
6.02
8.48
10.41
Separation PA
—
—
83.4
175 +
0.4
Year
—
1995
1991
Spectra
K5 III
K
Colors
Y!!
B
No
77
Notes:
AB 1824: 73.0 @ 165. 24 measurements. The primary is an infra-red source.
Hipparcos/Tycho data show different distances for these stars; they may be optical. The
stars have different proper motions.
BC 1 measurement.
Observations:
C8 at 83x. It is a little too wide to be stunning. Webb saw them as D and B. Franks
saw oR and B!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 54.3 inches; B = 35.4 inches.
Separation: AB = 137 miles.
Distance (LY): 1,050
Total luminosity (Suns): 435
-4-
Zone 90
Espin 18
ADS 6808; HD 71049; SAO 42361
Rating: 5 E
Position: 0827+4206
A
B
Magnitude
9.09
10.54
Separation PA
—
—
12.1 235 -
Year
—
1991
Spectra
A0
Colors
W
W
Notes:
AB 1892: 12.2 @ 236. 12 measurements.
May be optical because Hipparcos gives different distances (191 and 44 light years).
Observations:
C8 at 104x.
Moderate
OS 189
ADS 6675; HD 68562; SAO 42242
Rating: 5 M
Position: 0815+4302
A
B
Magnitude
6.83
10.67
Separation PA
—
—
4.3 +
293 -
Year
—
1991
Notes:
1843: 3.8 @ 294. 12 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.7 inches.
Separation: AB = 4.56 miles.
Distance (LY): 680
Total luminosity (Suns): 74
-5-
Spectra
A0 IV
Colors
W
?
Zone 90
Zone 90, Map 2
Double Stars
Easy
Hussey 849
ADS 6613; HD 67391; SAO 60597
Rating: 4 D
Position: 0809+3714
A
B
Magnitude
8.93
9.13
Separation PA
—
—
1.2 282 -
Year
—
1991
Spectra
F8
Colors
W
W
Notes:
1904: 1.3 @ 286. 18 measurements.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.8 inches.
Separation: AB = 2,693 feet.
Distance (LY): 276
Total luminosity (Suns): 2.92
STF 1184
HD 67422; SAO 60602
Rating: 3 E
Position: 0809+3752
A
B
Magnitude
8.74
9.51
Separation PA
—
—
27.0 341 +
Year
—
1991
Spectra
G5
Colors
Y
pO
Notes:
1829: 27.2 @ 340. 21 measurements. The stars share common proper motion.
Espin found a companion to A, 14.40m (18.9 @ 214 in 1906).
-6-
Zone 90
Observations:
C8 at 104x. About 8 min SW lies a pair of 11m-12m stars 35" apart. 7 min farther
out than these two lies another pair (8m, 9m; 100" @ pa140).
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.3 inches.
Separation: AB = 5.85 miles.
Distance (LY): 139
Total luminosity (Suns): 0.8
OSS 91
HD 69715; SAO 60729
Rating: 3 E
Position: 0819+3503
A
B
Magnitude
7.18
8.30
Separation PA
—
—
93.6 +
210 -
Year
—
1996
Spectra
A5
G0
Colors
W
W
Notes:
1875: 92.5 @ 226. 22 measurements.
The stars have different proper motions. However, their distances are similar (215
and 243 light years).
Observations:
C8 at 104x. Moderate field.
h3308
HD 67587; SAO 60611
Rating: 4 E
Position: 0810+3527
A
B
Magnitude
6.65
11.30
Separation PA
—
—
51.4 +
270 +
Notes:
1901: 45.7 @ 263. 6 measurements.
-7-
Year
—
1926
Spectra
F8
Colors
W
?
Zone 90
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.6 inches.
Separation: AB = 13.0 miles.
Distance (LY): 162
Total luminosity (Suns): 4.4
Espin 2159
ADS 6635; HD 67742; SAO 60621
Rating: 4 E
Position: 0811+3555
A
B
Magnitude
9.19
11.12
Separation PA
—
—
8.3 +
57 +
Year
—
1991
Spectra
F5
Colors
W
B
Notes:
1925: 8 @ 54. 8 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.0 inches.
Separation: AB = 8.03 miles.
Distance (LY): 620
Total luminosity (Suns): 7.41
STF 1204
ADS 6639; SAO 60627
Rating: 4 E
Position: 0811+3808
A
B
Magnitude
9.24
10.33
Separation PA
—
—
11.7 103 -
Notes:
1829: 11.8 @ 104. 16 measurements.
-8-
Year
—
1991
Spectra
F8
Colors
W
B?
Zone 90
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.1 inches.
Separation: AB = 43.8 miles.
Distance (LY): 2,400
Total luminosity (Suns): 146
Espin 1732
ADS 6785; SAO 60786
Rating: 4 E
Position: 0824+3737
A
B
Magnitude
9.47
10.10
Separation PA
—
—
12.7 +! 77 +
Year
—
1960
Spectra
F8
Colors
W
W
Notes:
1918: 8.0 @ 67. 3 measurements.
Observations:
C11 at 115x.
STF 1222
ADS 6802; HD 70987; SAO 60809
Rating: 4 E
Position: 0826+3733
A
B
Magnitude
8.68
9.99
Separation PA
—
—
10.0 =
49 +
Year
—
1991
Spectra
A3
Colors
G
R
Notes:
1830: 10.0 @ 47. 15 measurements. Hipparcos/Tycho data show different distances
for these stars; they may be optical.
Observations:
C8 at 83x.
-9-
Zone 90
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.70 inches.
Separation: AB = 13.4 miles.
Distance (LY): 860
Total luminosity (Suns): 26
Fox 156
HD 67482; SAO 60606
Rating: 5 E
Position: 0810+3542
A
B
Magnitude
7.30
11.75
Separation PA
—
—
68.6
182
Year
—
1922
Spectra
K0
Colors
Y
?
Notes:
1 measurement.
Observations:
C8 at 104x. It rules a dim field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 23.2 inches.
Separation: AB = 76.0 miles.
Distance (LY): 710
Total luminosity (Suns): 51
STF 1211
ADS 6721; SAO 60711
Rating: 5 E
Position: 0818+3859
A
B
C
D
Magnitude
8.91
9.24
12.60
9.98
Separation
—
0.1 27.1
117.0 +
PA
—
264 1
133 +
- 10 -
Year
—
1994
1898
1991
Spectra
K0
Colors
Y
No
B
W
Zone 90
Notes:
AB 1831: 1.6 @ 133. 52 measurements. Period computed to be 407 years, semimajor axis of 1.11", retrograde motion.
AC 1 measurement.
AD 1894: 92.3 @ 131. 9 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.6 inches.
Separation: AB = 158 feet; AC = 8.50 miles; AD = 36.3 miles.
Distance (LY): 201
Total luminosity (Suns): 1.428
Moderate
Hussey 1122
ADS 6639; SAO 60627
Rating: 4 M
Position: 0812+3807
A
B
Magnitude
9.28
10.58
Separation PA
—
—
2.8 +
168 +
Year
—
1991
Notes:
1905: 2.7 @ 166. 10 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.0 inches.
Separation: AB = 10.6 miles.
Distance (LY): 2,430
Total luminosity (Suns): 117
- 11 -
Spectra
F5
Colors
W
yO
Zone 90
h436
Rating: 5 M
Position: 0804+3500
A
B
Magnitude
10.52
12.29
Separation PA
—
—
12.4 +
82 +
Year
—
1928
Spectra
Colors
W
?
Notes:
1906: 12.2 @ 81. 2 measurements.
Observations:
C11 at 115x.
Distance (LY): 79
Total luminosity (Suns): 0.036
Deep Sky Objects
Difficult
NGC 2493
Other Names: H III 750, UGC 4150
Astronomical League Program: Herschel II Club
Rating: 4 D
Position: 0800+3950
Type : Gal
Surface brightness: 13.5
Class: SB0
Dimensions: 2.2' x 2.2'
Magnitude : 12.0
Observations:
C8 at 206x. It appears as a very faint, indistinct foggy splotch I noticed with tube
movement and averted vision. Three stars lie to the N, forming an E-W line. From E to
W, they are 7.7m, 10m, and 9m.
Distance: 170,000,000 light years
Radial velocity (km/sec): +3,910
Luminosity: 35,900,000,000 Suns
- 12 -
Zone 90
NGC 2543
Other Names: IC2232, H II 719
Rating: 5 D
Position: 0813+3615
Type : Gal
Surface brightness: 13.0
Class: SB(s)b
Dimensions: 2.3' x 1.2'
Magnitude : 11.9
PA: 45
Notes:
The galaxy was first seen by William Herschel in Feb 1787, and was reobserved in
March 1790. The two positions that he measured are not in particularly good agreement
(08 09.6 +36 20 and 08 09.8 +36 35). John Herschel picked it up once in Feb 1832. His
position is 08 11 45, +36 24.6, also not in good agreement with either of his father's
determinations. However, Sir John notes a "a coarse ** p points to it." This note is
correct, and the "double star" is quite wide.
- Dr. Harold G. Corwin, Jr.
[Source: http://www.ngcic.org/ngcicdb.asp]
Observations:
C11 at 110x. The faintest wisp of haze around a very faint and nearly stellar nucleus.
Two faint stars lie 3 min E.
Distance: 100,000,000 light years
Radial velocity (km/sec): +2,471
Luminosity: 13,700,000,000 Suns
- 13 -
Zone 90
Zone 90, Map 3
Double Stars
Easy
STF 1184
HD 67422; SAO 60602
Rating: 3 E
Position: 0809+3752
A
B
Magnitude
8.74
9.51
Separation PA
—
—
27.0 341 +
Year
—
1991
Spectra
G5
Colors
Y
pO
Notes:
1829: 27.2 @ 340. 21 measurements. The stars share common proper motion.
Espin found a companion to A, 14.40m (18.9 @ 214 in 1906).
Observations:
C8 at 104x. About 8 min SW lies a pair of 11m-12m stars 35" apart. 7 min farther
out than these two lies another pair (8m, 9m; 100" @ pa140).
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.3 inches.
Separation: AB = 5.85 miles.
Distance (LY): 139
Total luminosity (Suns): 0.8
OSS 91
HD 69715; SAO 60729
Rating: 3 E
Position: 0819+3503
A
B
Magnitude
7.18
8.30
Separation PA
—
—
93.6 +
210 -
- 14 -
Year
—
1996
Spectra
A5
G0
Colors
W
W
Zone 90
Notes:
1875: 92.5 @ 226. 22 measurements.
The stars have different proper motions. However, their distances are similar (215
and 243 light years).
Observations:
C8 at 104x. Moderate field.
h3308
HD 67587; SAO 60611
Rating: 4 E
Position: 0810+3527
A
B
Magnitude
6.65
11.30
Separation PA
—
—
51.4 +
270 +
Year
—
1926
Spectra
F8
Colors
W
?
Notes:
1901: 45.7 @ 263. 6 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.6 inches.
Separation: AB = 13.0 miles.
Distance (LY): 162
Total luminosity (Suns): 4.4
Espin 2159
ADS 6635; HD 67742; SAO 60621
Rating: 4 E
Position: 0811+3555
A
B
Magnitude
9.19
11.12
Separation PA
—
—
8.3 +
57 +
- 15 -
Year
—
1991
Spectra
F5
Colors
W
B
Zone 90
Notes:
1925: 8 @ 54. 8 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.0 inches.
Separation: AB = 8.03 miles.
Distance (LY): 620
Total luminosity (Suns): 7.41
STF 1204
ADS 6639; SAO 60627
Rating: 4 E
Position: 0811+3808
A
B
Magnitude
9.24
10.33
Separation PA
—
—
11.7 103 -
Year
—
1991
Spectra
F8
Colors
W
B?
Notes:
1829: 11.8 @ 104. 16 measurements.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.1 inches.
Separation: AB = 43.8 miles.
Distance (LY): 2,400
Total luminosity (Suns): 146
Espin 1732
ADS 6785; SAO 60786
Rating: 4 E
Position: 0824+3737
A
B
Magnitude
9.47
10.10
Separation PA
—
—
12.7 +! 77 +
- 16 -
Year
—
1960
Spectra
F8
Colors
W
W
Zone 90
Notes:
1918: 8.0 @ 67. 3 measurements.
Observations:
C11 at 115x.
STF 1222
ADS 6802; HD 70987; SAO 60809
Rating: 4 E
Position: 0826+3733
A
B
Magnitude
8.68
9.99
Separation PA
—
—
10.0 =
49 +
Year
—
1991
Spectra
A3
Colors
G
R
Notes:
1830: 10.0 @ 47. 15 measurements. Hipparcos/Tycho data show different distances
for these stars; they may be optical.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.70 inches.
Separation: AB = 13.4 miles.
Distance (LY): 860
Total luminosity (Suns): 26
Fox 156
HD 67482; SAO 60606
Rating: 5 E
Position: 0810+3542
A
B
Magnitude
7.30
11.75
Separation PA
—
—
68.6
182
Notes:
1 measurement.
- 17 -
Year
—
1922
Spectra
K0
Colors
Y
?
Zone 90
Observations:
C8 at 104x. It rules a dim field.
Distance (LY): 710
Total luminosity (Suns): 51
STF 1211
ADS 6721; SAO 60711
Rating: 5 E
Position: 0818+3859
A
B
C
D
Magnitude
8.91
9.24
12.60
9.98
Separation
—
0.1 27.1
117.0 +
PA
—
264 1
133 +
Year
—
1994
1898
1991
Spectra
K0
Colors
Y
No
B
W
Notes:
AB 1831: 1.6 @ 133. 52 measurements. Period computed to be 407 years, semimajor axis of 1.11", retrograde motion.
AC 1 measurement.
AD 1894: 92.3 @ 131. 9 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.6 inches.
Separation: AB = 158 feet; AC = 8.50 miles; AD = 36.6 miles.
Distance (LY): 201
Total luminosity (Suns): 1.428
- 18 -
Zone 90
Moderate
Hussey 1122
ADS 6639; SAO 60627
Rating: 4 M
Position: 0812+3807
A
B
Magnitude
9.28
10.58
Separation PA
—
—
2.8 +
168 +
Year
—
1991
Spectra
F5
Colors
W
yO
Notes:
1905: 2.7 @ 166. 10 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.0 inches.
Separation: AB = 10.6 miles.
Distance (LY): 2,430
Total luminosity (Suns): 117
h436
Rating: 5 M
Position: 0804+3500
A
B
Magnitude
10.52
12.29
Separation PA
—
—
12.4 +
82 +
Year
—
1928
Notes:
1906: 12.2 @ 81. 2 measurements.
Observations:
C11 at 115x.
Distance (LY): 79
Total luminosity (Suns): 0.036
- 19 -
Spectra
Colors
W
?
Zone 90
Difficult
Hussey 849
ADS 6613; HD 67391; SAO 60597
Rating: 4 D
Position: 0809+3714
A
B
Magnitude
8.93
9.13
Separation PA
—
—
1.2 282 -
Year
—
1991
Notes:
1904: 1.3 @ 286. 18 measurements.
Observations:
C11 at 634x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.8 inches.
Separation: AB = 2,693 feet.
Distance (LY): 276
Total luminosity (Suns): 2.92
- 20 -
Spectra
F8
Colors
W
W
Zone 90
Zone 90, Map 4
Double Stars
Easy
STF 1239
ADS 6859; SAO 60882
Rating: 4 E
Position: 0832+3729
A
B
Magnitude
9.64
11.03
Separation PA
—
—
12.7 =
290 +
Year
—
1991
Spectra
Colors
W
dB
Notes:
1829: 12.7 @ 289. 11 measurements.
Observations:
C8 at 206x.
Distance (LY): 930
Total luminosity (Suns): 14
h793
ADS 6920; SAO 60973
Rating: 4 E
Position: 0841+3508
A
B
Magnitude
9.86
11.05
Separation PA
—
—
11.0 +
252 -
Notes:
1906: 10.3 @ 254. 7 measurements.
Observations:
C8 at 104x. Rules a bleak field.
- 21 -
Year
—
1991
Spectra
F8
A5
Colors
W
W
Zone 90
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.6 inches; B = 9.56 inches.
Separation: AB = 13.7 miles.
Distance (LY): 800
Total luminosity (Suns): 12
STF 1259
ADS 6985
Rating: 4 E
Position: 0847+3829
A
B
Magnitude
8.88
9.55
Separation PA
—
—
5.1 +
341 =
Year
—
1991
Spectra
G0
Colors
W
B
Notes:
1829: 5.0 @ 341. 21 measurements.
Observations:
C8 at 280x.
STF 1274
ADS 7005; HD 75052; SAO 61060
Rating: 4 E
Position: 0849+3821
A
B
Magnitude
7.27
9.37
Separation PA
—
—
9.1 +
40 -
Notes:
1830: 8.9 @ 41. 23 measurements.
Observations:
C8 at 83x. Webb saw them as both W.
- 22 -
Year
—
1991
Spectra
A2
Colors
W
B
Zone 90
STF 1282
ADS 7034; HD 75353; SAO 61077
Rating: 4 E
Position: 0851+3504
A
B
Magnitude
6.86
6.93
Separation PA
—
—
3.5 262 -
Year
—
1999
Spectra
F8
Colors
pO
pO
Notes:
1821: 3.8 @ 277. Over 100 measurements. The stars share common proper motion.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.9 inches.
Separation: AB = 1.03 miles.
Distance (LY): 189
Total luminosity (Suns): 7.7
Moderate
Ali 353
HD 73934; SAO 60995
Rating: 5 M
Position: 0842+3631
A
B
Magnitude
8.77
11.90
Separation PA
—
—
12.6
180
Notes:
1 measurement.
Observations:
C11 at 115x.
- 23 -
Year
—
1932
Spectra
F5
Colors
W
?
Zone 90
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.6 inches.
Separation: AB = 23.8 miles.
Distance (LY): 1,210
Total luminosity (Suns): 38
Difficult
STF 1279
ADS 7019; HD 75189; SAO 61067
Rating: 3 D
Position: 0850+3935
A
B
Magnitude
8.42
8.53
Separation PA
—
—
1.1 269 -
Year
—
1998
Spectra
G0
Colors
Y
yW
Notes:
1831: 1.6 @ 274. 41 measurements.
Observations:
C11 at 634x. Three stars to the S add a nice touch to the field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 17.3 inches.
Separation: AB = 4,858 feet.
Distance (LY): 540
Total luminosity (Suns): 18.6
Bur 209
ADS 6946; HD 74073
Rating: 5 D
Position: 0843+3848
A
B
Magnitude
8.05
9.11
Separation PA
—
—
1.3 6+
- 24 -
Year
—
1999
Spectra
F5
Colors
W
W
Zone 90
Notes:
1875: 1.6 @ 355. 47 measurements.
Observations:
C8 at 697x. A 9m star lies 3 min N.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.7 inches.
Separation: AB = 3,960 feet.
Distance (LY): 371
Total luminosity (Suns): 9
Deep Sky Objects
Difficult
NGC 2638
Other Names: UGC 4534
Rating: 5 D
Position: 0842+3713
Type : Gal
Surface brightness: 12.8
Class: S0/a
Dimensions: 1.9' x 0.7'
Magnitude : 12.8
PA: 72
Observations:
C8 at 104x. It presents a very faint oval smudge that was picked up with tube
movement. High powers don't help the view appreciably.
Radial velocity (km/sec): +3,819
- 25 -
Zone 90
Zone 90 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
STF 1176
0806+4159
3E
1
STF 1184
0809+3752
3E
2
Espin 593
0817+4053
3E
1
OSS 91
0819+3503
3E
2
STF 1217
0824+4457
3E
1
South 565
0825+4200
3E
1
h3308
0810+3527
4E
2
STF 1204
0811+3808
4E
2
Espin 2159
0811+3555
4E
2
Espin 1732
0824+3737
4E
2
STF 1222
0826+3733
4E
2
STF 1239
0832+3729
4E
4
STF 1251
0840+4117
4E
3
h793
0841+3508
4E
4
STF 1259
0847+3829
4E
4
STF 1274
0849+3821
4E
4
STF 1282
0851+3504
4E
4
Fox 156
0810+3542
5E
2
STF 1211
0818+3859
5E
2
Espin 18
0827+4206
5E
1
Kustner 96
0843+4106
5E
3
Component
A
B
A
B
A
B
C
BC
A
B
A
B
A
B
C
BC
A
B
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
D
A
B
A
B
- 26 -
Mag
8.04
10.32
8.74
9.51
9.21
9.39
10.10
7.18
8.30
7.71
9.25
6.02
8.48
10.41
6.65
11.30
9.24
10.33
9.19
11.12
9.47
10.10
8.68
9.99
9.64
11.03
10.39
10.88
9.86
11.05
8.88
9.55
7.27
9.37
6.86
6.93
7.30
11.75
8.91
9.24
12.60
9.98
9.09
10.54
10.35
11.00
Separation
—
22.6 +
—
27.0 —
20.5 +
PA
—
30 +
—
341 +
—
341 +!
4.5 +
—
93.6 +
—
29.6 —
83.4
211 =
—
210 —
243 +
—
175 +
0.4
—
51.4 +
—
11.7 —
8.3 +
—
12.7 +!
—
10.0 =
—
12.7 =
—
6.5 +
—
11.0 +
—
5.1 +
—
9.1 +
—
3.5 —
68.6
—
0.1 27.1
117.0 +
—
12.1 —
376.1
77
—
270 +
—
103 —
57 +
—
77 +
—
49 +
—
290 +
—
30 +
—
252 —
341 =
—
40 —
262 —
182
—
264 27.1
117.0 +
—
235 —
168
Zone 90
Designation
Position
Rating
Map
STF 1263
0845+4140
5E
3
STF 1289
0855+4335
3M
3
Hussey 1122
0812+3807
4M
2
h436
0804+3500
5M
2
OS 189
0815+4302
5M
1
Ali 353
0842+3631
5M
4
STF 1279
0850+3935
3D
4
Hussey 849
0809+3714
4D
2
STF 3120
0856+4341
4D
3
Bur 209
0843+3848
5D
4
Component
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
Mag
8.58
9.22
11.01
7.70
9.00
9.28
10.58
10.52
12.29
6.83
10.67
8.77
11.90
8.42
8.53
8.93
9.13
8.44
9.06
8.05
9.11
Separation
—
121.2 +!!
89.6
—
3.9 +
—
2.8 +
—
12.4 +
—
4.3 +
—
12.6
—
1.1 —
1.2 —
1.4 —
1.3 -
PA
—
21 +!
89.6
—
7+
—
168 +
—
82 +
—
293 —
180
—
269 —
282 —
0+
—
6+
Deep Sky Objects
Object
NGC 2493
NGC 2543
NGC 2638
Position
0800+3950
0813+3615
0842+3713
Rating
4D
5D
5D
Map
2
2
4
Type
Gal (SB0)
Gal (SB(s)b)
Gal (S0/a)
- 27 -
Specifications
Surface
Mag
Br
12.0
13.5
11.9
13.0
12.8
12.8
Population