Zone 87, Master Map
Normal View
Zone Master, Normal View, 10 deg FOV
+44°00'
Menkalinan
ε
e
Auriga
+42°00'
c
ρ
ζ
+40°00'
η
λ
ν
τ
µ
f
υ
σ
d
Pe
+36°00'
θ
ω
+38°00'
β
M38
φ
Flaming Star
M36
06h 00m
05h 48m
05h 36m
05h 24m
05h 12m
05h 00m
Zone 87, Map 1
Normal Image
STF 669
Espin 1372
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 727
Espin 1377
Espin 1528
STF 613
Epsilon Aur
Espin 14
Bur 751
+42°00'
Espin 576
A. G. 314
STF 715
η
Soulie 66
ζ
A 1556
Collinder 62
+41°00'
ρ
A 1720
Espin 63
+43°00'
ε
+44°00'
Espin 1376
Smart 52
Espin 2615
λ
SI 3
Lambda Aur
OSS 63
NGC 1851
A. G. 94
Smart 54
05h 36m
05h 30m
05h 24m
05h 18m
05h 12m
05h 06m
05h 00m
04h 54m
Zone 87, Map 1
Mirror Image
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 669
Espin 1372
STF 727
Espin 1377
Espin 1376
+44°00'
Espin 1528
STF 613
Epsilon Aurε
+43°00'
Espin 14
Bur 751
+42°00'
Espin 576
A. G. 314
ρ
STF 715
η
Soulie 66
A 1556
Smart 52
Collinder 62
+41°00'
ζ
A 1720
Espin 2615
λ
SI 3
Lambda Aur
OSS 63
A. G. 94
Smart 54
04h 54m
05h 00m
05h 06m
05h 12m
05h 18m
05h 24m
05h 30m
05h 36m
Zone 87, Map 2
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
λ
+40°00'
Espin 2615
SI 3
Lambda Aur
OSS 63
A. G. 94
Smart 54
STF 621
STF 646
NGC 1857
A. G. 83
STF 658
Espin 2215
+39°00'
5 Aur
h3272
Bur 1318
STF 699
ω
Omega Aur
+38°00'
µ
h3271
PK 169-0.1
σ
Sigma Aur
STF 644
Scheiner 89
h3265 Scheiner 76
NGC 1778
h3266
Scheiner 139
Scheiner 345
+37°00'
Ali 516
Scheiner 223
+36°00'
Weisse 8
h692
M38
NGC 1912
Scheiner 308
Scheiner 296
Scheiner 309
STF 705
Scheiner 249
NGC 1907
Scheiner 303
STF 698
05h 30m
φ
Phi Aur
A. G. 86
Espin 331
Doolittle 32
Scheiner 186
Scheiner 180
Bur 191
05h 24m
05h 18m
05h 12m
05h 06m
05h 00m
Zone 87, Map 2
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
λ
SI 3
Lambda Aur
OSS 63
+40°00'
Espin 2615
A. G. 94
Smart 54
5 Aur
h3272
NGC 1857
STF 646
+39°00'
STF 621
A. G. 83
STF 658
Espin 2215
Bur 1318
+38°00'
µ
STF 699
ω
Omega Aur
h3271
PK 169-0.1
σ
NGC 1778
Scheiner 76
h3265
h3266
Ali 516
Sigma Aur
+37°00'
STF 644
Scheiner 89
Scheiner 139
Weisse 8
h692
A. G. 86
Scheiner 296 M38
NGC 1912
Scheiner 308
Doolittle 32
Espin 331
Scheiner 186
Scheiner 180
STF 705
Scheiner 309
Scheiner 249
NGC 1907
STF 698
Bur 191
05h 00m
05h 06m
05h 12m
05h 18m
05h 24m
φ
Scheiner 303
Phi Aur
05h 30m
+36°00'
Scheiner 223
Zone 87, Map 3
Normal Image
Smart 59
Menkalinan
Beta Aur
STF 727
Bur 1055
H VI 91
Espin 1376
Espin 1377
Espin 1528
Espin 1531
+43°00'
A 1565
+44°00'
β
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 822 rej
Argelander 62
+42°00'
A 1570
STF 736
Auriga
A 1720
Argelander 61
STF 715
+41°00'
Espin 63
STF 768 rej
Espin 1728
Weisse 10
Espin 2615
STF 775
Hipparcos 786
STF 802
STF 803 rej
OSS 63
STF 791
06h 06m
06h 00m
05h 54m
05h 48m
05h 42m
05h 36m
05h 30m
05h 24m
Zone 87, Map 3
Mirror Image
Smart 59
Menkalinan
STF 727
Bur 1055
H VI 91
+44°00'
Espin 1528
Espin 1531
A 1565
STF 822 rej
+43°00'
Espin 1376
Espin 1377
Beta Aurβ
+45°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Argelander 62
Espin 576
+42°00'
A 1570
STF 736
Auriga
A 1720
Argelander 61
Espin 63
Collinder 62
STF 768 rej
+41°00'
STF 715
Espin 1728
Weisse 10
Espin 2615
STF 775
Hipparcos 786
STF 802
STF 803 rej
OSS 63
A. G. 94
STF 791
05h 24m
05h 30m
05h 36m
05h 42m
05h 48m
05h 54m
06h 00m
06h 06m
Zone 87, Map 4
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 2615
STF 775
+40°00'
Hipparcos 786
STF 802
STF 803 rej
OSS 63
τ
ν
+39°00'
STF 791
Tau Aur
Nu Aur
Bur 1318
Espin 2217
STF 799
+38°00'
Weisse 11
Bur 893
Stock 10
Scheiner 397
Scheiner 383
υ
σ
Ali 516
Ball 16
+37°00'
Theta Aurθ
Scheiner 345
STF 825
Scheiner 349
Scheiner 363
A. G. 104
M38
Scheiner 296
NGC 1912
A. G. 95
Scheiner 308
Scheiner 309
STF 705
NGC 1907
Scheiner 394
Scheiner 303
06h 00m
05h 54m
05h 48m
05h 42m
05h 36m
Phi Aur φ
05h 30m
+36°00'
Scheiner 323
A. G. 101
Zone 87, Map 4
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Espin 2615
STF 775
+40°00'
Hipparcos 786
STF 802
STF 803 rej
OSS 63
A. G. 94
Tau Aurτ
Nu Aur
+39°00'
STF 791
ν
Bur 1318
Weisse 11
STF 799
+38°00'
Espin 2217
STF 699
Stock 10
Scheiner 383
Ali 516
Ball 16
υ
θ
Theta Aur
Scheiner 345
+37°00'
Sigma Aur
Scheiner 397
STF 825
Scheiner 323
+36°00'
A. G. 101
Scheiner 349
Scheiner 363
Scheiner 296
M38
NGC 1912
Scheiner 308
A. G. 95
STF 705
Scheiner 309
Scheiner 249
NGC 1907
Scheiner 394
STF 698
Scheiner 303
Bur 191
φ
Phi Aur
05h 30m
05h 36m
05h 42m
05h 48m
05h 54m
06h 00m
Zone 87
Index
80 Double Stars, 1 Planetary Nebula,
6 Open Clusters
Flamsteed
E
5 Aur .................................................... 22
Epsilon Aur ............................................ 6
Espin 1376 ............................................. 5
Espin 1377 ............................................. 7
Espin 14 ................................................. 5
Espin 1528 ............................................. 8
Espin 1531 ........................................... 37
Espin 1728 ........................................... 37
Espin 2217 ........................................... 48
Espin 2615 ............................................. 3
Espin 331 ............................................. 23
Espin 576 ............................................... 4
Espin 63 ............................................... 38
A
A 1556 ................................................... 3
A 1565 ................................................. 34
A 1570 ................................................. 40
A 1720 ................................................. 33
A. G. 101 ............................................. 46
A. G. 314 ............................................... 9
A. G. 83 ............................................... 13
A. G. 86 ............................................... 22
A. G. 94 ............................................... 21
A. G. 95 ............................................... 45
Ali 516 ................................................. 47
Argelander 61 ...................................... 35
Argelander 62 ...................................... 35
H
h3265 ................................................... 17
h3266 ................................................... 24
h3271 ................................................... 14
h3272 ................................................... 27
h692 ..................................................... 17
Hipparcos 786 ...................................... 41
B
Ball 16.................................................. 49
Beta Aur............................................... 38
Bur 1318 .............................................. 16
Bur 751 .................................................. 9
L
C
Lambda Aur ......................................... 10
Collinder 62 ......................................... 11
N
D
NGC 1778 ............................................ 31
NGC 1851 ............................................ 11
NGC 1857 ............................................ 31
NGC 1907 ............................................ 28
Doolittle 32 .......................................... 14
-1-
Zone 87
NGC 1912............................................ 29
Nu Aur ................................................. 45
Smart 52................................................. 7
Smart 54............................................... 19
Soulie 66 ................................................ 4
STF 621................................................ 13
STF 644................................................ 26
STF 646................................................ 12
STF 658................................................ 18
STF 699................................................ 12
STF 705................................................ 16
STF 715................................................ 36
STF 727................................................ 42
STF 736................................................ 42
STF 768 rej .......................................... 36
STF 775................................................ 34
STF 791................................................ 44
STF 799................................................ 52
STF 802................................................ 40
STF 803 rej .......................................... 41
Stock 10 ............................................... 53
O
OSS 63................................................. 44
P
PK 169-0.1........................................... 32
S
Scheiner 139 ........................................ 23
Scheiner 186 ........................................ 19
Scheiner 223 ........................................ 15
Scheiner 249 ........................................ 20
Scheiner 296 ........................................ 20
Scheiner 308 ........................................ 20
Scheiner 309 ........................................ 25
Scheiner 323 ........................................ 47
Scheiner 345 ........................................ 50
Scheiner 349 ........................................ 50
Scheiner 363 ........................................ 48
Scheiner 383 ........................................ 51
Scheiner 394 ........................................ 49
Scheiner 397 ........................................ 51
Scheiner 76 .......................................... 17
Scheiner 89 .......................................... 24
SI 3......................................................... 8
Sigma Aur............................................ 25
T
Tau Aur ................................................ 52
W
Weisse 10............................................. 33
Weisse 11............................................. 46
Weisse 8 ............................................... 21
-2-
Zone 87
Zone 87, Map 1
Double Stars
Easy
Espin 2615
HD 278240; SAO 40356
Rating: 2 E
Position: 0528+4021
A
B
C
D
Magnitude
8.81
9.14
9.66
10.21
Separation
—
52.6 +
75.9 +
48.6 -
PA
—
334 +
47 +
Year
—
1991
1991
261 +
Spectra
K2
Colors
Y!
yW
W
1991
Notes:
AB 1893: 52.3 @ 333. 7 measurements.
AC 1893: 75.4 @ 46. 7 measurements.
AD 1918: 51 @ 259. 2 measurements.
Hipparcos gives discordant distances: 730 light years to A, 574 to B, 980 to C, and
1,860 to D.
Observations:
C11 at 115x. This system forms a gorgeous diamond solitare!
A 1556
ADS 3833; HD 277774; SAO 40179
Rating: 3 E
Position: 0516+4105
A
B
Magnitude
9.66
10.43
Separation PA
—
—
2.9 +
234 =
Notes:
1907: 2.6 @ 234. 10 measurements.
-3-
Year
—
1999
Spectra
A0
Colors
W
W?
Zone 87
Observations:
C11 at 115x.
Soulie 66
HD 34492; SAO 40238
Rating: 3 E
Position: 0520+4113
A
B
Magnitude
8.03
10.02
Separation PA
—
—
19.0 273 -
Year
—
1991
Spectra
Am
Colors
W
W?
Notes:
1896: 19.7 @ 275. 3 measurements.
Observations:
C11 at 115x. It is part of a small tirangle. A 6m star lies about 5 min S.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.58 inches.
Separation: AB = 285 miles.
Distance (LY): 9,600
Total luminosity (Suns): 5,400
Espin 576
ADS 3975; HD 35101; SAO 40311
Rating: 3 E
Position: 0524+4237
A
B
Magnitude
8.07
8.64
Separation PA
—
—
42.8 +
236 =
Notes:
1893: 42.4 @ 236. 6 measurements.
Observations:
C8 at 104x. Moderately rich field.
-4-
Year
—
1985
Spectra
A2
A0
Colors
W
Q
Zone 87
Espin 1376
ADS 4009
Rating: 3 E
Position: 0526+4440
A
B
Magnitude
9.73
10.60
Separation PA
—
—
4.0 =
250 +
Year
—
1915
Spectra
Colors
Y
W
Notes:
1894: 4.0 @ 249. 2 measurements.
Observations:
C11 at 115x.
Distance (LY): 473
Total luminosity (Suns): 3.25
Espin 14
A 1551; ADS 3580; HD 31678; SAO 39922
Rating: 4 E
Position: 0500+4319
A
B
Magnitude
8.86
9.96
Separation PA
—
—
33.1 =
156 =
Year
—
1991
Notes:
1893: 33.1 @ 156. 12 measurements.
Observations:
C8 at 104x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.00 inches.
Separation: AB = 19.2 miles.
Distance (LY): 371
Total luminosity (Suns): 4.04
-5-
Spectra
A0 V
Colors
W
W
Zone 87
Epsilon Aur
Rating: 4 E
7 Aur; Maaz, "the he-goat"; Bur 554; ADS 3605; HD 31964; SAO 39955
Position: 0502+4349
A
B
C
Magnitude
3.03
11.26
12.00
Separation
—
42.9 =
45.0 -
PA
—
276 +
317 =
Year
—
1989
1925
Spectra
F0 Iaev
Colors
Y
?
?
Notes:
AB 1878: 42.6 @ 275. 7 measurements.
AC 1879: 46.4 @ 317. 5 measurements.
The variability of the light was discovered by the German amateur astronomer J. H.
Fritsch in 1821.
Star A is a supergiant eclipsing binary and 180 times the diameter of the Sun! It is
also an infra-red source and a shell star.
The invisible partner defies imagination— it is 2,800 times the Sun's diameter
(making it larger than Saturn's orbit!) but only 1 billionth of the Sun's density, less dense
than a good laboratory vacuum. The orbit takes 27.06 years.
The most popular theory at present on the nature of the companion is that it is actually
a disk of debris surrounding a small and invisible star— perhaps the early stages of the
development of a new solar system? This disk is thought to be 10 AU across and 1 AU
thick, and has a measured temperature of 500o K.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 45 feet.
Separation: AB = 137 miles; AC = 144 miles.
Distance (LY): 2,050
Total luminosity (Suns): 21,512
-6-
Zone 87
Smart 52
Rating: 4 E
Position: 0520+4054
A
B
Magnitude
10.95
12.00
Separation PA
—
—
9.4 127 -
Year
—
1983
Spectra
Colors
W
W
Notes:
1911: 10.1 @ 128. 2 measurements.
Observations:
C11 at 115x.
Distance (LY): 99
Total luminosity (Suns): 0.042
Espin 1377
ADS 4037
Rating: 4 E
Position: 0528+4441
A
B
Magnitude
10.06
10.70
Separation PA
—
—
4.4 =
188 -
Year
—
1915
Notes:
1894: 4.4 @ 189. 2 measurements.
Observations:
C11 at 115x.
Distance (LY): 242
Total luminosity (Suns): 0.674
-7-
Spectra
Colors
O!
W
Zone 87
Espin 1528
ADS 4057
Rating: 4 E
Position: 0529+4417
A
B
Magnitude
10.48
10.70
Separation PA
—
—
5.6
45
Year
—
1916
Spectra
Colors
W
O
Notes:
The Tycho-2 catalogue indicates a photo-center solution of a known or suspected
double, or one component of a double where the companion has been rejected.
AB 1916: 5.6 @ 45. 1 measurement.
Observations:
C11 at 115x. It is at the hook end of a "fishhook" of six 10m stars.
Distance (LY): 800
Total luminosity (Suns): 5.84
SI 3
Kuiper 20 H V 88
Rating: 5 E
Position: 0519+4008
A
B
C
D
E
Magnitude
4.69
13.40
12.10
8.60
Separation
—
29.1
41.7 +
146.6 +!!
192.5 +!!
PA
—
274
268 +!!
3 -!
211 +!!
Year
—
1900
1934
1921
1921
Spectra
G1 V
Colors
W
No
?
W
No
Notes:
AB 1 measurement.
AC 1879: 40.5 @ 198. 5 measurements. The stars have different proper motions.
(A is, in fact, a high proper motion star.)
AD 1836: 103.5 @ 29. 18 measurements.
AE 1911: 168.8 @ 60. 2 measurements.
Observations:
C8 at 104x.
-8-
Zone 87
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.0 inches.
Separation: AB = 3.50 miles; AC = 5.01 miles; AD = 17.6 miles; AE = 23.1
miles.
Distance (LY): 77
Total luminosity (Suns): 0.05
A. G. 314
HD 278026; SAO 40271
Rating: 5 E
Position: 0522+4203
A
B
Magnitude
8.07
9.36
Separation PA
—
—
106 +??!! 84 +
Year
—
1991
Spectra
K0
Colors
yO
bW
Notes:
1907: 5.9 @ 83. 2 measurements. The separations look discordant. I checked the
DSS2 site and found the 1991 measure to be accurate (106 @ 84). The 1907 measure
comes closest to a infra-red source, IRAS 05183+4200, which in 2002 measured 10.8 @
74 (again, on the digitized sky survey using the Aladin utility at the CDS website).
Observations:
C11 at 115x.
Moderate
Bur 751
ADS 3727; HD 33077; SAO 4065
Rating: 5 M
Position: 0510+4240
A
B
C
Magnitude
8.11
10.20
11.40
Separation
—
4.1 +
12.5 -!!
PA
—
246 175 -!!
Notes:
AB 1891: 3.1 @ 258. 11 measurements.
-9-
Year
—
1975
Spectra
G5
Colors
Y
W
W
Zone 87
AC 1899: 24.4 @ 204. 3 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.5 inches.
Separation: AB = 2,482 feet; AC = 1.46 miles.
Distance (LY): 75
Total luminosity (Suns): 0.28
Lambda Aur
Rating: 5 M
15 Aur; SII 3; Doberck 4 (E); Kuiper 20 (BC); OS 23; ADS 3886; HD 34411; SAO
40233
Position: 0519+4006
A
B
C
D
Magnitude
4.71
13.40
10.77
8.60
Separation
—
29.1
41.7 +
146.6 +!!
PA
—
274
268 +!!
3 -!
Year
—
1900
1934
1921
Spectra
G1 V
Notes:
AB 1 measurement.
AC 1879: 40.5 @ 198. 5 measurements.
AD 1836: 103.5 @ 29. 18 measurements.
There are several other very faint comes.
Observations:
C11 at 115x. B was very difficult.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.3 inches.
Separation: AB = 1.90 miles; AC = 2.70 miles; AD = 9.40 miles.
Distance (LY): 41
Total luminosity (Suns): 1.79
- 10 -
Colors
Y!
?
W?
W
Zone 87
Deep Sky Objects
Collinder 62
Rating: 4 E
Position: 0523+4100
Type: Oc
Dimensions: 28'
Class: IV 3p
Magnitude: 4.2
Observations:
C8 at 104x. It contains 19 stars brighter than 10m in a sparse arrangement.
Zone 87, Map 2
Double Stars
Easy
STF 646
ADS 3739; SAO 57717
Rating: 2 E
Position: 0511+3917
A
B
Magnitude
8.30
9.46
Separation PA
—
—
15.8 =
75 +
Year
—
1991
Spectra
G5 IV?
G5 V?
Colors
Y
bW
Notes:
1831: 15.8 @ 73. 21 measurements. Hipparcos/Tycho data show different distances
for these stars; they may be optical. However, the stars show similar proper motion.
Observations:
C8 at 104x. Moderate field to the S.
- 11 -
Zone 87
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.0 inches; B = 17.0 inches.
Separation: AB = 9.84 miles.
Distance (LY): 399
Total luminosity (Suns): 8
STF 699
ADS 4004; HD 35313; SAO 58006
Rating: 2 E
Position: 0526+3803
A
B
Magnitude
7.40
7.93
Separation PA
—
—
8.5 344 +
Year
—
1994
Spectra
A1 V
Colors
W
Y
Notes:
1830: 8.8 @ 343. 30 measurements. The stars show a similar, but small, proper
motion.
Observations:
C8 at 83x.
A. G. 83
ADS 3592; SAO 57565
Rating: 4 E
Position: 0501+3913
A
B
Magnitude
9.73
10.30
Separation PA
—
—
9.8 =
132 =
Notes:
1896: 9.8 @ 132. 7 measurements.
Observations:
C11 at 115x.
- 12 -
Year
—
1928
Spectra
F0
Colors
W
bW
Zone 87
STF 621
ADS 3601; HD 277429; SAO 57576
Rating: 4 E
Position: 0502+3915
A
B
Magnitude
8.60
9.40
Separation PA
—
—
10.0 +
132 +
Year
—
1961
Spectra
K0 V?
Colors
O
W
Notes:
1831: 9.8 @ 131. 12 measurements.
Observations:
C8 at 104x. A nice 8m right triangle is 5 min NE, and a 5m Y star is 7 min NNW.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 37.0 inches.
Separation: AB = 2.51 miles.
Distance (LY): 161
Total luminosity (Suns): 1.1
Doolittle 32
HD 33688; SAO 57762
Rating: 4 E
Position: 0514+3542
A
B
Magnitude
8.32
12.03
Separation PA
—
—
25.2 +
162 =
Year
—
1991
Spectra
A
Notes:
AB 1908: 25 @ 162. 2 measurements.
Observations:
C8 at 104x. Two 8m stars are 5 min W and a 50" double is 5 min N.
Rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.72 inches.
Separation: AB = 64.5 miles.
Distance (LY): 1,640
Total luminosity (Suns): 119
- 13 -
Colors
W
B
Zone 87
h3271
ADS 3852
Rating: 4 E
Position: 0517+3747
A
B
Magnitude
9.38
9.84
Separation PA
—
—
11.7 +
351 +
Year
—
1991
Spectra
A0
Colors
W
pO?
Notes:
1895: 11.0 @ 348. 12 measurements.
Observations:
C11 at 115x. Faint and scattered field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.63 inches.
Separation: AB = 4.83 miles.
Distance (LY): 265
Total luminosity (Suns): 1.61
Scheiner 223
Rating: 4 E
Position: 0523+3642
A
B
Magnitude
10.02
10.95
Separation PA
—
—
22.6 107 =
Year
—
1991
Notes:
1895: 23.8 @ 107. 6 measurements.
Observations:
C8 at 104x; moderately rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 9.10 inches.
Separation: AB = 2.46 miles.
Distance (LY): 70
Total luminosity (Suns): 0.06
- 14 -
Spectra
A5
Colors
W
W
Zone 87
STF 705
ADS 4024; HD 281137; SAO 58024
Rating: 4 E
Position: 0527+3524
A
B
Magnitude
10.25
10.78
Separation PA
—
—
18.1 12 =
Year
—
1982
Spectra
F8
Colors
W
W
Notes:
1829: 18.3 @ 12. 12 measurements.
Observations:
C11 at 115x. It is fried by a 6m Y star 3 min NE.
Bur 1318
ADS 4065
Rating: 4 E
Position: 0529+3848
A
B
C
Magnitude
7.10
11.90
9.99
Separation
—
2.2 12.5 +
PA
—
247 18 +
Year
—
1936
1958
Notes:
AB 1903: 2.3 @ 249. 4 measurements.
AC 1903: 12.4 @ 17. 7 measurements.
The stars share common proper motion.
Observations:
C8 at 104x. It is just 2 min W of a line of five 9m stars.
- 15 -
Spectra
A5
Colors
W
No
W
Zone 87
h692
HD 32905; SAO 57664
Rating: 5 E
Position: 0508+3609
A
B
Magnitude
9.32
10.70
Separation PA
—
—
10.1 +
174 =
Year
—
1931
Spectra
F0
Colors
W
W
Notes:
1895: 10.0 @ 174. 4 measurements.
Observations:
C8 at 104x. A 9.1m star (SAO 57669) is 4 min ENE.
Scheiner 76
Rating: 5 E
Position: 0508+3706
A
B
Magnitude
10.86
11.34
Separation PA
—
—
26.0 +
228 +
Year
—
1932
Spectra
Colors
W
W
Notes:
1895: 25.4 @ 224. 4 measurements.
Observations:
C8 at 104x. It is totally overwhelmed by an extremely rich field. The small open
cluster NGC 1778 lies just 5 min S.
h3265
HD 280462; SAO 57661
Rating: 5 E
Position: 0508+3703
A
B
C
Magnitude
10.21
10.14
12.43
Separation
—
15.0 15.3 +
PA
—
138 =
22 =
- 16 -
Year
—
1987
1987
Spectra
B8 IIa
Colors
W
W
?
Zone 87
Notes:
AB 1895: 15.4 @ 138. 15 measurements.
AC 1895: 15.1 @ 22. 2 measurements.
George Abt found 8 more very faint comes.
Observations:
C11 at 115x.
Very nice and faint field (the open cluster NGC 1778). This pair is about in the
middle of the cluster.
STF 658
ADS 3846; HD 34093; SAO 57821
Rating: 5 E
Position: 0517+3903
A
B
C
D
Magnitude
8.79
10.34
12.50
12.50
Separation
—
5.8 +
23.5
25.0
PA
—
189 +
43
333
Year
—
1991
1925
1925
Spectra
A2 V?
Notes:
AB 1832: 5.5 @ 188. 11 measurements.
AC and AD, 1 measurement.
Observations:
C8 at 104x. Extremely rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.96 inches.
Separation: AB = 9.05 miles; AC = 36.7 miles; AD = 39.0 miles.
Distance (LY): 1,000
Total luminosity (Suns): 50
- 17 -
Colors
W
O
No
No
Zone 87
Scheiner 186
HD 280941
Rating: 5 E
Position: 0520+3526
A
B
Magnitude
10.86
11.49
Separation PA
—
—
21.1 246 +
Year
—
1991
Spectra
Colors
W
W
Notes:
1895: 21.3 @ 244. 5 measurements.
Observations:
C8 at 104x. It is overpowered by a moderately rich and fairly bright field.
Distance (LY): 99
Total luminosity (Suns): 0.05
Smart 54
Rating: 5 E
Position: 0521+3939
A
B
Magnitude
9.84
10.56
Separation PA
—
—
16.0 268 +
Year
—
1983
Notes:
1907: 16.1 @ 267. 2 measurements.
Observations:
C11 at 115x. Swamped by a very rich and bright field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.74 inches.
Separation: AB = 30.2 miles.
Distance (LY): 1,210
Total luminosity (Suns): 20
- 18 -
Spectra
B8
Colors
W
?
Zone 87
Scheiner 249
Rating: 5 E
Position: 0526+3523
A
B
Magnitude
10.08
11.65
Separation PA
—
—
30.0
11
Year
—
1895
Spectra
Colors
W
W
Notes:
1 measurement.
Observations:
C8 at 104x. Moderately rich field.
Distance (LY): 142
Total luminosity (Suns): 0.13
Scheiner 296
Rating: 5 E
Position: 0529+3547
A
B
Magnitude
11.11
10.77
Separation PA
—
—
25.4 317 +
Year
—
1949
Spectra
Colors
W
W
Notes:
1895: 25.6 @ 316. 3 measurements.
The stars show similar proper motions.
Observations:
C8 at 104x. It lies on the NE edge of the OC M38.
Scheiner 308
Rating: 5 E
Position: 0530+3542
A
B
Magnitude
10.39
12.33
Separation PA
—
—
14.3
101
- 19 -
Year
—
1895
Spectra
Colors
W
?
Zone 87
Notes:
1 measurement.
Observations:
C8 at 104x. B was very difficult to pick up. It lies 3 min E of an open cluster.
Moderate
Weisse 8
ADS 3897
Rating: 3 M
Position: 0520+3613
A
B
Magnitude
9.69
10.02
Separation PA
—
—
2.9 +
332 +
Year
—
1991
Spectra
G5
Colors
W
W
Notes:
1901: 2.8 @ 330. 11 measurements.
There is a 14.0m star at 9.7 @ 223 (1911).
Observations:
C8 at 280x. Moderately rich field.
A. G. 94
ADS 3988
Rating: 3 M
Position: 0525+3945
A
B
Magnitude
9.36
9.96
Separation PA
—
—
2.7 110 +
Notes:
1902: 3.0 @ 106. 11 measurements.
Observations:
C8 at 280x. Moderately rich field.
- 20 -
Year
—
1999
Spectra
K2
Colors
Y
W
Zone 87
5 Aur
OS 92; ADS 3589; HD 31761; SAO 57559
Rating: 4 M
Position: 0500+3924
A
B
Magnitude
5.95
9.35
Separation PA
—
—
4.1 +
282 +
Year
—
1998
Spectra
F3 V
Colors
Y
B
Notes:
1843: 2.7 @ 227. 71 measurements.
The CHARA orbiting observatory found a companion to A at 0.1 @ 77.
Observations:
C8 at 206x. Webb: Y.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.00 inches.
Separation: AB = 1.11 miles.
Distance (LY): 173
Total luminosity (Suns): 9.7
A. G. 86
ADS 3643
Rating: 4 M
Position: 0504+3546
A
B
Magnitude
9.30
9.61
Separation PA
—
—
2.7 +
17 -
Year
—
1999
Spectra
G5
Colors
W
W
Notes:
1902: 2.6 @ 18. 10 measurements.
Observations:
C8 at 280x. Some field stars form a boomerang pattern with this pair at the angle of
the boomerang.
- 21 -
Zone 87
Espin 331
ADS 3669; HD 280496; SAO 57625
Rating: 4 M
Position: 0506+3540
A
B
Magnitude
9.14
11.60
Separation PA
—
—
8.1 329 +
Year
—
1994
Spectra
K0
Colors
O
?
Notes:
1906: 8.1 @ 322. 3 measurements.
Observations:
C11 at 115x. Very bright and rich field.
Scheiner 139
HD 34094; SAO 57823
Rating: 4 M
Position: 0517+3705
A
B
Magnitude
9.26
12.26
Separation PA
—
—
26.9
169
Year
—
1895
Notes:
1 measurement.
Observations:
C8 at 104x. Rich but faint field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.59 inches.
Separation: AB = 11.8 miles.
Distance (LY): 281
Total luminosity (Suns): 1.3
- 22 -
Spectra
A0
Colors
W
?
Zone 87
h3266
ADS 3705
Rating: 5 M
Position: 0508+3658
A
B
Magnitude
10.13
11.10
Separation PA
—
—
8.5 63 +
Year
—
1931
Spectra
G0
Colors
W
W
Notes:
1895: 8.5 @ 62. 4 measurements.
Observations:
C11 at 115x. Very rich and faint field (the open cluster NGC 1778). This pair lies on
the S edge of the cluster.
Scheiner 89
Rating: 5 M
Position: 0511+3711
A
B
Magnitude
10.93
12.03
Separation PA
—
—
26.5 +
257 +?
Year
—
1991
Spectra
Colors
W
W
Notes:
1895: 26.1 @ 75. 4 measurements. Quadrant reversal?
Observations:
C8 at 104x. It is totally overpowered by a bright and rich field with a 6m stinger 8
min WNW.
Distance (LY): 27
Total luminosity (Suns): 0.003
- 23 -
Zone 87
Sigma Aur
21 Aur; Bur 888; ADS 3984; HD 35186; SAO 57981
Rating: 5 M
Position: 0525+3723
A
B
C
D
CD
Magnitude
5.01
11.00
13.20
15.20
Separation
—
8.7 +
27.4 +
6.8 +
PA
—
167 331 =
Year
—
1922
1914
1914
Spectra
K4 III
Colors
dY!!
?
?
No
342 -
Notes:
AB 1880: 7.9 @ 171. 7 measurements.
AC 1898: 27.2 @ 331. 2 measurements.
CD 1898: 4.4 @ 348. 2 measurements.
The primary is an infra-red source.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 28.0 inches.
Separation: AB = 6.92 miles; AC = 21.8 miles.
Distance (LY): 510
Total luminosity (Suns): 211.11
Scheiner 309
ADS 4084; SAO 58120
Rating: 5 M
Position: 0530+3525
A
B
Magnitude
8.86
11.22
Separation PA
—
—
7.5
227
Notes:
1 measurement.
- 24 -
Year
—
1932
Spectra
Colors
W
rO
Zone 87
Observations:
C8 at 104x. Rich field.
Difficult
STF 644
ADS 3734; HD 33203; SAO 57704
Rating: 5 D
Position: 0510+3718
A
B
C
Magnitude
6.80
7.03
10.40
Separation
—
1.6 =
73.4 +
PA
—
221 +
193 +!!
Year
—
1999
1996
Spectra
B2 II
K3
Colors
W
W
?
Notes:
AB 1828: 1.6 @ 219. Over 100 measurements. Star A is a spectroscopic binary and
an infra-red source. Hipparcos/Tycho data show different distances for these stars; they
may be optical.
AC 1895: 70.5 @ 16. 6 measurements. Quadrant reversal?
Observations:
C8 at 280x. Webb: D, bR; "remarkable and constant colors." Dembowski saw them
as G, R.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 1.18 inches; B = 33.1 inches.
Separation: AB = 5.12 miles; AC = 235 miles.
Distance (LY): 2,050
Total luminosity (Suns): 1,823
h3272
ADS 3898; HD 34545; SAO 57903
Rating: 5 D
Position: 0520+3921
A
B
C
D
Magnitude
7.36
13.10
12.52
10.87
Separation
—
17.9 28.8 32.8 -
PA
—
343 +
295 =
46 +
- 25 -
Year
—
1987
1987
1987
Spectra
K5 III
Colors
Y
?
?
?
Zone 87
Notes:
1879: 19.6 @ 342. 5 measurements.
AC 1879: 29.4 @ 295. 4 measurements.
AD 1879: 33.5 @ 43. 6 measurements.
George Abt claims 12 more extremely faint comes.
Observations:
C8 at 104x. It lies in a moderately rich and bright field, the open cluster NGC 1857.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.75 feet.
Separation: AB = 41.9 miles; AC = 67.4 miles; AD = 76.8 miles.
Distance (LY): 1,500
Total luminosity (Suns): 215
Deep Sky Objects
Easy
NGC 1907
Rating: 2 E
Other Names: Melotte 35; Collinder 66; Raab 25, H VII 39
Astronomical League Program: Herschel 400 Club; Binocular Deep Sky Club
Position: 0528+3519
Type: Oc/Gn
Dimensions: 5'
Class: II 1mn
Cluster population: 40
Magnitude: 8.2
Notes:
It is 440 million years old; the youngest stars are B3 types. The brightest star is 11m
(60 times brighter than the Sun).
This cluster lies 32,000 light years from the galactic center and 20 light years above
the galactic plane.
Observations:
C8 at 206x. Exquisite view! It is nebulous at low power, resolved at high power.
Very compact. Webb described it as a "very large cluster of minute stars arranged in
curves." With a 13-inch Newtonian, Steve Coe describes a "dark lane down the middle."
- 26 -
Zone 87
C11 at 115x. Extremely rich and faint group, very tight. I counted about 30 stars in a
grainy field. Rich field.
Model (where the Sun is a baseball):
Its diameter would be 2,100 miles and its stars would be 311 miles apart.
Distance (LY): 5,070
Luminosity (suns): 1,060
NGC 1907
Open cluster (II 1 mn)
Observed with C8 on 2/1/92
Magnification: 80x
NGC 1912
Rating: 2 E
Other Names: Melotte 36; Collinder 67; Raab 26, M38
Astronomical Leage Program: Messier Club; Urban Deep Sky Club
Position: 0529+3550
Type: Oc
Dimensions: 21'
Class: II 2r
Cluster population: 100
- 27 -
Magnitude: 6.4
Zone 87
Notes:
It was discovered by Le Gentil in 1749. Messier added it to his catalog on September
25, 1764. He said "this one is square and contains no nebulosity if one is careful to
examine it with a good telescope."
It is 25 light years in diameter and 290 million years old. The youngest stars are B4
and B5 types but the brightest star is a G0 giant 900 times brighter than the Sun.
It is part of the Auriga OB1 association.
This cluster lies 32,000 light years from the galactic center and 50 light years above
the galactic plane.
Observations:
C8 at 65x. Awesome! It has a sparse center. The eyepiece view suggests an inverted
Greek "pi". Note the bright star (8m) just above the center. Webb described it as a
"noble cluster arranged as oblique cross; pair of larger stars in each arm; brighter star in
centre…. Glorious neighbourhood." Very rich field.
Model (where the Sun is a baseball):
Its diameter would be 8,260 miles. Its stars would be 900 miles apart
Distance (LY): 3,480
Luminosity (suns): 2,600
NGC 1912 (M38)
Open cluster (100 stars; II 2 r)
Observed with C-8 on 1/30/92
Magnification: 80x
- 28 -
Zone 87
Moderate
NGC 1857
Other Names: Melotte 32; Collinder 61, H VII 33
Astronomical League Program: Herschel 400 Club
Rating: 3 M
Position: 0520+3921
Type: Oc
Dimensions: 5'
Class: I 3m
Cluster population: 45
Magnitude: 8.2
Notes:
This cluster lies 34,000 light years from the galactic center and 130 light years above
the galactic plane.
The brightest star is 11m.
Observations:
C8 at 83x. Averted vision is helpful. Note the 7m O star at the center, and the many
B and W stars. The foreground stars to the N are a loose open cluster called Czernik 20.
Webb calls it a "splendid region."
Model (where the Sun is a baseball):
Its diameter would be 2,810 miles, with its stars 410 miles apart.
Distance (LY): 6,000
Luminosity (suns): 1,500
NGC 1778
Other Names: Collinder 58, H VIII 61
Astronomical League Program: Herschel II Club
Rating: 4 M
Position: 0508+3703
Type: Oc
Dimensions: 6' x 3'
Class: III 2p
Cluster population: 25
Magnitude: 7.7
Notes:
It is 143 million years old and its earliest stars are of spectral class B6. The brightest
star is 10.1m (140 times brighter than the Sun).
It lies 32,000 light years from the galactic center and 165 light years south of its
central plane.
- 29 -
Zone 87
Observations:
C8 at 104x. Small, oblong, and rich! It is dominated by four 9m stars; also, note the
pair of 10m stars 12" apart (pa about 340) at the N end.
Model (where the Sun is a baseball):
Its diameter would be 2,500 miles, with its stars 400 miles apart.
Distance (LY): 480
Luminosity (suns): 1,500
PK 169-0.1
Rating: 4 M
Position: 0518+3736
Type: Pn
Dimensions: 32''
Class: 2
Magnitude: 12.0
Observations:
C8 at 83x. It resembled a star that would not focus. I had a better view of it at 200x
with a filter. There were no sharp edges detected. The central star is 16.2m.
Rich field.
- 30 -
Zone 87
Zone 87, Map 3
Double Stars
Easy
A 1720
ADS 4082; HD 278210; SAO 40377
Rating: 3 E
Position: 0530+4145
A
B
Magnitude
9.55
10.47
Separation PA
—
—
2.1 +
275 +
Year
—
1991
Spectra
A0
Colors
W
yW
Notes:
1907: 1.9 @ 259. 13 measurements.
Observations:
C11 at 339x. Duplicity was suspected at 115x.
Weisse 10
SAO 40546
Rating: 3 E
Position: 0543+4053
A
B
Magnitude
9.61
9.68
Separation PA
—
—
22.4 +
198 -?
Year
—
1991
Spectra
A
Notes:
1901: 21.1 @ 19. 10 measurements. Quadrant reversal?
Observations:
C11 at 115x. There is a nice meandering "wall" of stars 10 min W.
- 31 -
Colors
W
W
Zone 87
A 1565
ADS 4283
Rating: 3 E
Position: 0543+4322
A
B
Magnitude
9.05
10.40
Separation PA
—
—
4.3 +
196 +
Year
—
1987
Spectra
K0 III
Colors
yO
bW
Notes:
1907: 4.0 @ 190. 5 measurements.
Observations:
C11 at 115x. It forms the obtuse angle of a very flat triangle.
STF 775
HD 37977; SAO 40573
Rating: 3 E
Position: 0544+4024
A
B
Magnitude
8.28
10.03
Separation PA
—
—
22.5 =
68 +
Year
—
1991
Notes:
1830: 22.5 @ 67. 9 measurements.
Observations:
C8 at 104x. Faint but rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.0 inches.
Separation: AB = 6.00 miles.
Distance (LY): 171
Total luminosity (Suns): 1.3
- 32 -
Spectra
G0 IV?
Colors
yW
O
Zone 87
Argelander 61
SAO 40676
Rating: 3 E
Position: 0553+4127
A
B
Magnitude
9.58
10.50
Separation PA
—
—
22.9 116 =
Year
—
1987
Spectra
B8
Colors
W
W
Notes:
1896: 23.3 @ 116. 5 measurements. May be optical because Hipparcos gives
different distances (429 and 603 light years).
Observations:
C8 at 104x. With a 9.8 star to the S, it forms a nice acute triangle.
Argelander 62
Rating: 3 E
Position: 0554+4249
A
B
Magnitude
11.24
11.30
Separation PA
—
—
7.2 +
79 -
Year
—
1958
Notes:
1860: 6.9 @ 82. 3 measurements.
The Tycho-2 Catalog indicates a single star entry.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 28.8 inches.
Separation: AB = 1,109 feet.
Distance (LY): 19
Total luminosity (Suns): 0.002
- 33 -
Spectra
K0
Colors
Y
W
Zone 87
STF 715
ADS 4083; HD 35951; SAO 40378
Rating: 4 E
Position: 0530+4117
A
B
C
Magnitude
8.53
9.34
11.00
Separation
—
0.8 19.5
PA
—
201 51
Year
—
1995
1904
Spectra
A0 IV?
Colors
W
No
?
Notes:
AB 1831: 1.0 @ 206. 24 measurements.
AC 1 measurement.
Observations:
C8 at 206x. I measured an AC pa of 320 with a Celestron MicroGuide.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.84 inches.
Separation: AB = 1.90 miles; AC = 46.3 miles.
Distance (LY): 1,520
Total luminosity (Suns): 107
STF 768 rej
ADS 4288; HD 37841; SAO 40560
Rating: 4 E
Position: 0543+4107
A
B
Magnitude
7.47
10.31
Separation PA
—
—
19.0 +
214 -
Notes:
1896: 18.5 @ 222. L 6 measurements.
Observations:
C8 at 83x.
- 34 -
Year
—
1991
Spectra
B8
Colors
W
?
Zone 87
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.13 inches.
Separation: AB = 18.7 miles.
Distance (LY): 630
Total luminosity (Suns): 33
Espin 1728
ADS 4482
Rating: 4 E
Position: 0555+4103
A
B
Magnitude
10.74
10.80
Separation PA
—
—
5.4
264
Year
—
1918
Spectra
Colors
W
W
Notes:
1 measurement.
The Tycho-2 Catalogue indicates a single star entry.
Observations:
C11 at 115x.
Distance (LY): 55
Total luminosity (Suns): 0.023
Espin 1531
Barton 91; ADS 4508
Rating: 4 E
Position: 0556+4353
A
B
C
Magnitude
10.54
10.60
11.60
Separation
—
4.2 =
41.0
PA
—
305 +
293
Notes:
AB 1916: 4.2 @ 302. 5 measurements.
AC 1 measurement.
- 35 -
Year
—
1945
1916
Spectra
Colors
W
O
W
Zone 87
Observations:
C11 at 115x.
Espin 63
ADS 4173; HD 36720; SAO 40463
Rating: 5 E
Position: 0536+4118
A
B
Magnitude
8.61
11.80
Separation PA
—
—
7.8 +
175 +
Year
—
1917
Spectra
A0
Colors
W
O
Notes:
AB 1894: 6.8 @ 173. 6 measurements.
Observations:
C8 at 104x. Very rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.35 inches.
Separation: AB = 32.9 miles.
Distance (LY): 2,700
Total luminosity (Suns): 211
Beta Aur
Rating: 5 E
34 Aur; Menkalinan, "shoulder of the rein holder"; ADS 4556; HD 40183; SAO
40750; H VI 88
Position: 0559+4457
A
B
Magnitude
2.10
10.60
Separation PA
—
—
184.8 +
40 +
Year
—
1924
Spectra
A0 IV
Colors
W
W
Notes:
1841: 183.5 @ 38. 6 measurements.
Star A is an eclipsing binary (period of 3d 23h 2m 30s), a fact discovered by A.
Maury in 1890. It is an Algol-type system. This star is an infra-red source and is 3 times
larger than the Sun. The primary has 2.33 solar masses and the spectroscopic companion
2.25. The orbit is nearly circular.
- 36 -
Zone 87
The star belongs to the Ursa Major moving stream.
From James Kaler's Star Notes:
Menkalinan (Men-KAL-in-an) is an Arabic name meaning "the shoulder of the reinholder." As Polaris locates the north pole and Mintaka in Orion's Belt the celestial
equator, Menkalinan locates the "solstitial colure," the great circle in the sky that passes
through both celestial poles and the summer and winter solstices. Menkalinan is a mere
half-minute of arc (an angle less than the eye can see) off the colure. Immediately south
lies Theta Aurigae, which is even closer, a quarter of a minute away.
Menkalinan is a class A star with a temperature of 9,200 Kelvin, not very much
different from Vega or Sirius and somewhat brighter than a normal "A star" should be.
Careful observation reveals that every 3.96 days, the "star" undergoes a partial eclipse of
about a tenth of a magnitude, showing that it actually consists of two almost identical
stars in a tight orbit, each about 48 times more luminous than the Sun separated only
about one-fifth the distance between the Sun and Mercury. They may both be "subgiants"
that have begun to change and brighten as a result of exhaustion of their core hydrogen
fuel. They are so close that they distort each other through mutual tides, neither of them
round. A faint red dwarf far below naked-eye vision appears to orbit the pair at least 330
Earth-Sun distances away, from which the bright pair would be just barely separable by
eye.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.7 inches.
Separation: AB = 23.7 miles.
Distance (LY): 82
Total luminosity (Suns): 95
Moderate
A 1570
ADS 4531
Rating: 2 M
Position: 0558+4239
A
B
Magnitude
9.99
10.43
Separation PA
—
—
1.8 +
29 -
- 37 -
Year
—
1991
Spectra
B8
Colors
W
W
Zone 87
Notes:
1907: 1.6 @ 30. 7 measurements.
Observations:
C11 at 339x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.2 inches.
Separation: AB = 12.7 miles.
Distance (LY): 4,530
Total luminosity (Suns): 520
STF 802
ADS 4456; HD 39154; SAO 40669
Rating: 4 M
Position: 0552+4009
A
B
C
Magnitude
8.38
9.16
10.60
Separation
—
2.6 191.6 -
PA
—
105 57 =
Year
—
1991
1909
Spectra
G0 IV?
Notes:
AB 1828: 3.2 @ 109. 20 measurements.
AC 1880: 191.8 @ 57. 2 measurements. Different proper motions.
Observations:
C8 at 206x. Some observers report both as W.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.1 inches.
Separation: AB = 1.31 miles; AC = 97.9 miles.
Distance (LY): 324
Total luminosity (Suns): 6
- 38 -
Colors
W
pO
No
Zone 87
Hipparcos 786
SAO 40648
Rating: 5 M
Position: 0551+4018
A
B
Magnitude
9.47
11.91
Separation PA
—
—
11.9
317
Year
—
1991
Spectra
F8 IV
Colors
W
rO
Notes:
1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.0 inches.
Separation: AB = 17.8 miles.
Distance (LY): 960
Total luminosity (Suns): 13
STF 803 rej
Rating: 5 M
Position: 0553+4008
A
B
Magnitude
9.92
12.60
Separation PA
—
—
11.1
35
Year
—
1904
Spectra
Colors
W
?
Notes:
1 measurement.
Observations:
C11 at 115x. This pair is the top-center star of a "T". STF 802 is the NW star of the
"T".
Distance (LY): 54
Total luminosity (Suns): 0.0347
- 39 -
Zone 87
Difficult
STF 727
ADS 4137; HD 36422; SAO 40429
Rating: 4 D
Position: 0534+4447
A
B
Magnitude
8.16
9.29
Separation PA
—
—
2.2 =
59 +
Year
—
1990
Spectra
F5 III?
Colors
W
W
Notes:
1830: 2.2 @ 57. 18 measurements.
Observations:
C8 at 280x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.7 inches.
Separation: AB = 7.04 miles.
Distance (LY): 2,050
Total luminosity (Suns): 350
STF 736
ADS 4204; HD 36929; SAO 40485
Rating: 4 D
Position: 0537+4150
A
B
Magnitude
7.09
8.39
Separation PA
—
—
2.5 +
358 +
Year
—
1995
Notes:
1830: 2.0 @ 342. 43 measurements.
Observations:
C8 at 280x. Webb: W, B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.9 inches.
Separation: AB = 3,010 feet.
Distance (LY): 146
Total luminosity (Suns): 3
- 40 -
Spectra
F8 V?
Colors
B
R
Zone 87
Zone 87, Map 4
Double Stars
Easy
STF 791
ADS 4420; SAO 58483
Rating: 2 E
Position: 0550+3935
A
B
C
Magnitude
8.60
9.20
9.80
Separation
—
5.0 +
60.9 +
PA
—
91 +
214 +
Year
—
1991
1928
Spectra
A0 V?
Colors
W
O
B
Notes:
AB 1830: 4.9 @ 90 13 measurements.
AC 1880: 60.6 @ 213. 3 measurements.
Observations:
C8 at 104x. Moderate field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.86 inches.
Separation: AB = 8.43 miles; AC = 103 miles.
Distance (LY): 1,080
Total luminosity (Suns): 64
OSS 63
HD 36041; SAO 58129
Rating: 3 E
Position: 0531+3950
A
B
Magnitude
6.38
7.62
Separation PA
—
—
75.6 +
276 +
- 41 -
Year
—
1997
Spectra
G9 III
K0
Colors
O
Y
Zone 87
Notes:
1874: 75.1 @ 274. 17 measurements.
The stars show similar proper motion and distances (461 and 493 light years).
Observations:
C8 at 104x. Very, very rich field.
A. G. 95
SAO 58190
Rating: 3 E
Position: 0534+3549
A
B
Magnitude
9.35
10.19
Separation PA
—
—
24.3 17 +
Year
—
1991
Spectra
B1:V:pe
Colors
W
W
Notes:
1895: 24.8 @ 16. 7 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 13.8 inches.
Separation: AB = 12.9 miles.
Distance (LY): 340
Total luminosity (Suns): 2.40
Nu Aur
32 Aur; ADS 4440; HD 39003; SAO 58502; H V 90
Rating: 3 E
Position: 0551+3909
A
B
Magnitude
3.97
9.30
Separation PA
—
—
54.6 206 -
- 42 -
Year
—
1911
Spectra
K0 III
G9
Colors
dY?
?
Zone 87
Notes:
1877: 55.0 @ 207. 4 measurements.
The primary is an infra-red source.
Observations:
C8 at 104x. The color of star A is difficult.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.0 feet; B = 4.60 inches.
Separation: AB = 18.3 miles.
Distance (LY): 215
Total luminosity (Suns): 92.7
A. G. 101
ADS 4457; SAO 58522
Rating: 3 E
Position: 0552+3618
A
B
Magnitude
9.39
10.27
Separation PA
—
—
19.6 +! 0 -!
Year
—
1987
Spectra
Colors
W
O
Notes:
1895: 10.0 @ 54. 10 measurements.
Observations:
C11 at 115x.
Distance (LY): 163
Total luminosity (Suns): 0.53
Weisse 11
HD 39433; SAO 58551
Rating: 3 E
Position: 0554+3835
A
B
Magnitude
8.99
9.22
Separation PA
—
—
25.1 +
345 +?
- 43 -
Year
—
1991
Spectra
A0
Colors
W
W
Zone 87
Notes:
1904: 24.8 @ 164. 10 measurements. Quadrant reversal? The stars show similar
proper motions.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.49 inches.
Separation: AB = 6.22 miles.
Distance (LY): 159
Total luminosity (Suns): 1
Ali 516
Rating: 4 E
Position: 0531+3723
A
B
Magnitude
10.27
10.72
Separation PA
—
—
13.7
234
Year
—
1930
Spectra
Colors
yO
W
Notes:
1 measurement.
Hipparcos gives discordant distances: 108 light years and 40 light years.
Observations:
C11 at 115x. It lies on the west edge of the open cluster NGC 1342.
Scheiner 323
ADS 4143; HD 36483; SAO 58181
Rating: 4 E
Position: 0534+3627
A
B
Magnitude
8.21
11.00
Separation PA
—
—
8.8
265
Notes:
1 measurement.
Observations:
C8 at 83x. Faint but rich field.
- 44 -
Year
—
1895
Spectra
O9.5 III
Colors
bW
?
Zone 87
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.0 inches.
Separation: AB = 54.9 miles.
Distance (LY): 4,000
Total luminosity (Suns): 750
Scheiner 363
SAO 58282
Rating: 4 E
Position: 0539+3609
A
B
Magnitude
9.76
12.17
Separation PA
—
—
29.6 +
245 +
Year
—
1991
Spectra
F2
Colors
W
?
Notes:
1895: 28.4 @ 242. 2 measurements.
Observations:
C8 at 104x. Nice arc of bright stars to the SSW.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.9 inches.
Separation: AB = 13.9 miles.
Distance (LY): 300
Total luminosity (Suns): 1.09
Espin 2217
ADS 4274
Rating: 4 E
Position: 0542+3831
A
B
Magnitude
9.84
10.02
Separation PA
—
—
3.8 +
130 +
Notes:
1926: 3.7 @ 125. 6 measurements.
- 45 -
Year
—
1991
Spectra
Colors
W
W
Zone 87
Observations:
C11 at 115x.
Distance (LY): 87
Total luminosity (Suns): 0.128
Ball 16
HD 38230; SAO 58412
Rating: 4 E
Position: 0546+3717
A
B
Magnitude
7.36
11.72
Separation PA
—
—
104 +!
104 -
Year
—
1955
Spectra
K0 V
Colors
O!
W?
Notes:
1880: 48.3 @ 114. 3 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 2.40 inches.
Separation: AB = 10.9 miles.
Distance (LY): 67
Total luminosity (Suns): 0.41
Scheiner 394
Rating: 4 E
Position: 0551+3506
A
B
Magnitude
10.15
10.78
Separation PA
—
—
14.3 =
326 +?
Year
—
1991
Notes:
1895: 14.3 @ 145. 6 measurements. Quadrant reversal?
Observations:
C11 at 115x. Nice field.
- 46 -
Spectra
Colors
W
Y?
Zone 87
Scheiner 345
Rating: 5 E
Position: 0535+3651
A
B
Magnitude
10.93
11.80
Separation PA
—
—
28.1 350 -?
Year
—
1991
Spectra
Colors
W
W
Notes:
1895: 29.3 @ 171. 7 measurements. Quadrant reversal?
Observations:
C8 at 104x.
Distance (LY): 60
Total luminosity (Suns): 0.03
Scheiner 349
Rating: 5 E
Position: 0536+3614
A
B
Magnitude
9.73
12.31
Separation PA
—
—
14.0 +
52 -
Year
—
1932
Notes:
1895: 13.8 @ 53. 6 measurements.
Observations:
C8 at 104x. Moderately rich field.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.75 inches.
Separation: AB = 10.5 miles.
Distance (LY): 480
Total luminosity (Suns): 2.22
- 47 -
Spectra
A0
Colors
W
?
Zone 87
Scheiner 383
SAO 58408
Rating: 5 E
Position: 0546+3726
A
B
Magnitude
8.81
12.49
Separation PA
—
—
25.6 243 =
Year
—
1991
Spectra
Colors
W
bW
Notes:
1895: 25.9 @ 243. 5 measurements.
Observations:
C11 at 115x. Very, very rich field.
Distance (LY): 570
Total luminosity (Suns): 7.9
Scheiner 397
HD 39094; SAO 58517
Rating: 5 E
Position: 0552+3750
A
B
Magnitude
7.89
11.34
Separation PA
—
—
24.9
150
Year
—
1895
Spectra
G5
Colors
W
bW
Notes:
1 measurement.
Hipparcos/Tycho data show different distances for these stars (216 and 10 light
years); they may be optical.
Observations:
C8 at 104x.
- 48 -
Zone 87
Difficult
STF 799
ADS 4452; HD 39114; SAO 58520
Rating: 4 D
Position: 0552+3834
A
B
Magnitude
7.31
7.93
Separation PA
—
—
0.7 164 -!
Year
—
1994
Spectra
B8
Colors
W
W
Notes:
1829: 1.1 @ 193. 67 measurements.
Observations:
C11 at 634x. I got a snowman on a night of marginal seeing.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.08 inches.
Separation: AB = 3,802 feet.
Distance (LY): 660
Total luminosity (Suns): 81
Tau Aur
Bu 192; 29 Aur; ADS 4398; HD 38656; SAO 58465; H IV 21
Rating: 5 D
Position: 0549+3911
A
B
C
Magnitude
4.52
11.50
11.50
Separation
—
39.7 +
50.2 +
PA
—
353 +
37 +
Year
—
1916
1928
Spectra
G8 III
Colors
W
?
?
Notes:
AB 1877: 38.9 @ 350. 6 measurements. The star belongs to the Ursa Major moving
stream and an infra-red source.
AC 1877: 47.9 @ 33. 9 measurements.
Observations:
C8 at 83x. Webb: "Ellison, good test object."
- 49 -
Zone 87
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 11.8 inches.
Separation: AB = 13.2 miles; AC = 16.7 miles.
Distance (LY): 213
Total luminosity (Suns): 57.2
Deep Sky Objects
Easy
Stock 10
Rating: 4 E
Position: 0539+3756
Type: Oc
Dimensions: 25'
Class: IV 3 p
Cluster population: 15
Magnitude:
Notes:
This cluster is 263 million years old.
Observations:
C11 at 115x. Very large, loose and scattered group of bright stars. I counted 23 stars
in my 26 minute field.
Distance: 1,240 light years.
- 50 -
Zone 87
Zone 87 Mini-Catalog
Double Star
Designation
Position
Rating
Map
STF 727
0534+4447
4D
3
STF 736
0537+4150
4D
3
STF 799
0552+3834
4D
4
STF 644
0510+3718
5D
2
h3272
0520+3921
5D
2
Tau Aur
0549+3911
5D
4
STF 646
0511+3917
2E
2
STF 699
0526+3803
2E
2
Espin 2615
0528+4021
2E
1
STF 791
0550+3935
2E
4
A 1556
0516+4105
3E
1
Soulie 66
0520+4113
3E
1
Espin 576
0524+4237
3E
1
Espin 1376
0526+4440
3E
1
A 1720
0530+4145
3E
3
OSS 63
0531+3950
3E
4
A. G. 95
0534+3549
3E
4
Weisse 10
0543+4053
3E
3
A 1565
0543+4322
3E
3
STF 775
0544+4024
3E
3
Component
A
B
A
B
A
B
A
B
C
A
B
C
D
A
B
C
A
B
A
B
A
B
C
D
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
- 51 -
Mag
8.16
9.29
7.09
8.39
7.31
7.93
6.80
7.03
10.40
7.36
13.10
12.52
10.87
4.52
11.50
11.50
8.30
9.46
7.40
7.93
8.81
9.14
9.66
10.21
8.60
9.20
9.80
9.66
10.43
8.03
10.02
8.07
8.64
9.73
10.60
9.55
10.47
6.38
7.62
9.35
10.19
9.61
9.68
9.05
10.40
8.28
10.03
Separation
—
2.2 =
—
2.5 +
—
0.7 —
1.6 =
73.4 +
—
17.9 28.8 32.8 —
39.7 +
50.2 +
—
15.8 =
—
8.5 —
52.6 +
75.9 +
48.6 —
5.0 +
60.9 +
—
2.9 +
—
19.0 —
42.8 +
—
4.0 =
—
2.1 +
—
75.6 +
—
24.3 —
22.4 +
—
4.3 +
—
22.5 =
PA
—
59 +
—
358 +
—
164 -!
—
221 +
73.4 +
—
343 +
28.8 32.8 —
353 +
50.2 +
—
75 +
—
344 +
—
334 +
75.9 +
48.6 —
91 +
60.9 +
—
234 =
—
273 —
236 =
—
250 +
—
275 +
—
276 +
—
17 +
—
198 -?
—
196 +
—
68 +
Zone 87
Designation
Position
Rating
Map
Nu Aur
0551+3909
3E
4
A. G. 101
0552+3618
3E
4
Argelander 61
0553+4127
3E
3
Weisse 11
0554+3835
3E
4
Argelander 62
0554+4249
3E
3
Espin 14
0500+4319
4E
1
A. G. 83
0501+3913
4E
2
STF 621
0502+3915
4E
2
Epsilon Aur
0502+4349
4E
1
Doolittle 32
0514+3542
4E
2
h3271
0517+3747
4E
2
Smart 52
0520+4054
4E
1
Scheiner 223
0523+3642
4E
2
STF 705
0527+3524
4E
2
Espin 1377
0528+4441
4E
1
Espin 1528
0529+4417
4E
1
Bur 1318
0529+3848
4E
2
STF 715
0530+4117
4E
3
Ali 516
0531+3723
4E
4
Scheiner 323
0534+3627
4E
4
Scheiner 363
0539+3609
4E
4
Espin 2217
0542+3831
4E
4
STF 768 rej
0543+4107
4E
3
Ball 16
0546+3717
4E
4
Scheiner 394
0551+3506
4E
4
Component
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
A
B
A
B
A
B
C
A
B
C
A
B
A
B
A
B
A
B
A
B
A
B
A
B
- 52 -
Mag
3.97
9.30
9.39
10.27
9.58
10.50
8.99
9.22
11.24
11.30
8.86
9.96
9.73
10.30
8.60
9.40
3.03
11.26
12.00
8.32
12.03
9.38
9.84
10.95
12.00
10.02
10.95
10.25
10.78
10.06
10.70
10.48
10.70
7.10
11.90
9.99
8.53
9.34
11.00
10.27
10.72
8.21
11.00
9.76
12.17
9.84
10.02
7.47
10.31
7.36
11.72
10.15
10.78
Separation
—
54.6 —
19.6 +!
—
22.9 —
25.1 +
—
7.2 +
—
33.1 =
—
9.8 =
—
10.0 +
—
42.9 =
45.0 —
25.2 +
—
11.7 +
—
9.4 —
22.6 —
18.1 —
4.4 =
—
5.6
—
2.2 12.5 +
—
0.8 19.5
—
13.7
—
8.8
—
29.6 +
—
3.8 +
—
19.0 +
—
104 +!
—
14.3 =
PA
—
206 —
0 -!
—
116 =
—
345 +?
—
79 —
156 =
—
132 =
—
132 +
—
276 +
45.0 —
162 =
—
351 +
—
127 —
107 =
—
12 =
—
188 —
45
—
247 12.5 +
—
201 19.5
—
234
—
265
—
245 +
—
130 +
—
214 —
104 —
326 +?
Zone 87
Designation
Position
Rating
Map
Espin 1728
0555+4103
4E
3
Espin 1531
0556+4353
4E
3
Scheiner 76
0508+3706
5E
2
h692
0508+3609
5E
2
h3265
0508+3703
5E
2
STF 658
0517+3903
5E
2
SI 3
0519+4008
5E
1
Scheiner 186
0520+3526
5E
2
Smart 54
0521+3939
5E
2
A. G. 314
0522+4203
5E
1
Scheiner 249
0526+3523
5E
2
Scheiner 296
0529+3547
5E
2
Scheiner 308
0530+3542
5E
2
Scheiner 345
0535+3651
5E
4
Scheiner 349
0536+3614
5E
4
Espin 63
0536+4118
5E
3
Scheiner 383
0546+3726
5E
4
Scheiner 397
0552+3750
5E
4
Beta Aur
0559+4457
5E
3
A 1570
0558+4239
2M
3
Weisse 8
0520+3613
3M
2
A. G. 94
0525+3945
3M
2
5 Aur
0500+3924
4M
2
Component
A
B
A
B
C
A
B
A
B
A
B
C
A
B
C
D
A
B
C
D
E
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
- 53 -
Mag
10.74
10.80
10.54
10.60
11.60
10.86
11.34
9.32
10.70
10.21
10.14
12.43
8.79
10.34
12.50
12.50
4.69
13.40
12.10
8.60
??
10.86
11.49
9.84
10.56
8.07
9.36
10.08
11.65
11.11
10.77
10.39
12.33
10.93
11.80
9.73
12.31
8.61
11.80
8.81
12.49
7.89
11.34
2.10
10.60
9.99
10.43
9.69
10.02
9.36
9.96
5.95
9.35
Separation
—
5.4
—
4.2 =
41.0
—
26.0 +
—
10.1 +
—
15.0 15.3 +
—
5.8 +
23.5
25.0
—
29.1
41.7 +
146.6 +!!
192.5 +!!
—
21.1 —
16.0 —
106 +??!!
—
30.0
—
25.4 —
14.3
—
28.1 —
14.0 +
—
7.8 +
—
25.6 —
24.9
—
184.8 +
—
1.8 +
—
2.9 +
—
2.7 —
4.1 +
PA
—
264
—
305 +
41.0
—
228 +
—
174 =
—
138 =
15.3 +
—
189 +
23.5
25.0
—
274
41.7 +
146.6 +!!
211 +!!
—
246 +
—
268 +
—
84 +
—
11
—
317 +
—
101
—
350 -?
—
52 —
175 +
—
243 =
—
150
—
40 +
—
29 —
332 +
—
110 +
—
282 +
Zone 87
Designation
Position
Rating
Map
A. G. 86
0504+3546
4M
2
Espin 331
0506+3540
4M
2
Scheiner 139
0517+3705
4M
2
STF 802
0552+4009
4M
3
h3266
0508+3658
5M
2
Bur 751
0510+4240
5M
1
Scheiner 89
0511+3711
5M
2
Lambda Aur
0519+4006
5M
1
Sigma Aur
0525+3723
5M
2
Scheiner 309
0530+3525
5M
2
Hipparcos 786
0551+4018
5M
3
STF 803 rej
0553+4008
5M
3
Component
A
B
A
B
A
B
A
B
C
A
B
A
B
C
A
B
A
B
C
D
A
B
C
D
CD
A
B
A
B
A
B
Mag
9.30
9.61
9.14
11.60
9.26
12.26
8.38
9.16
10.60
10.13
11.10
8.11
10.20
11.40
10.93
12.03
4.71
13.40
10.77
8.60
5.01
11.00
13.20
15.20
Separation
—
2.7 +
—
8.1 —
26.9
—
2.6 191.6 —
8.5 —
4.1 +
12.5 -!!
—
26.5 +
—
29.1
41.7 +
146.6 +!!
—
8.7 +
27.4 +
PA
—
17 —
329 +
—
169
—
105 191.6 —
63 +
—
246 12.5 -!!
—
257 +?
—
274
41.7 +
146.6 +!!
—
167 27.4 +
6.8 +
—
7.5
—
11.9
—
11.1
342 —
227
—
317
—
35
8.86
11.22
9.47
11.91
9.92
12.60
Deep Space
Object
NGC 1907
NGC 1912
Collinder 62
Stock 10
NGC 1857
NGC 1778
PK 169-0.1
Position
0528+3519
0529+3550
0523+4100
0539+3756
0520+3921
0508+3703
0518+3736
Rating
2E
2E
4E
4E
3M
4M
4M
Map
2
2
1
4
2
2
2
Type
Oc/Gn (II 1mn)
Oc (II 2r)
Oc (IV 3p)
Oc (IV 3 p)
Oc (I 3m)
Oc (III 2p)
Pn (2)
- 54 -
Specifications
Surface
Mag
Br
8.2
6.4
4.2
8.2
7.7
12.0
Population
40
100
15
45
25