Zone 19, Master Map
+75°00'
Zone Master, Norm al View, 10 deg FOV
NGC 2977
STF 1378
STF 1437
STF 1393 rej
19-1Draco
h2495
STF 1408
NGC 2646
Camelopardalis
NGC 2614
+73°00'
+74°00'
Kuiper 47
STF 1253
STF 1280
+70°00'
STF 1415
+71°00'
NGC 2985
27 UMa
NGC 3066
+72°00'
STF 1362
Osvalds 3
NGC 3031
M81 Bode's Nebula
STF 1400
STF 1386 rej
Engelmann 41
+69°00'
M82
+68°00'
NGC 2787
19-2
NGC 2976
ρ
STF 1349
σ2
STF 1330 rej
+66°00'
STF 1350
Sigma 2 UMa
σ1
+67°00'
NGC 3034
+65°00'
Milburn 347
STF 1407
OS 522
NGC 2820
10h 00m
09h 48m
09h 36m
09h 24m
09h 12m
09h 00m
Zone 19, Map 1
Normal Image
+77°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1335 rej
STF 1373
+76°00'
NGC 2748
+75°00'
h3319
Kuiper 47
STF 1393 rej
STF 1408
Draco
h2495
Camelopardalis
+72°00'
STF 1362
+73°00'
+74°00'
NGC 2977
STF 1378
+70°00'
+71°00'
NGC 2985
27 UMa
NGC 3066
Osvalds 3
M82
NGC 3034
10h 12m
10h 00m
09h 48m
09h 36m
NGC 2787
09h 24m
09h 12m
Zone 19, Map 1
Mirror Image
+77°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1335 rej
h3319
Kuiper 47
+75°00'
+76°00'
STF 1373
NGC 2748
NGC 2977
+74°00'
STF 1378
NGC 2985
NGC 3066
+70°00'
+71°00'
27 UMa
+72°00'
STF 1408
STF 1362
+73°00'
STF 1393 rej
Draco
h2495
Camelopardalis
Osvalds 3
M82
NGC 3034
09h 12m
NGC 2787
09h 24m
09h 36m
09h 48m
10h 00m
10h 12m
Zone 19, Map 2
Normal Image
+72°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+71°00'
NGC 2985
NGC 3066 27 UMa
+70°00'
STF 1415
Osvalds 3
M82
+69°00'
NGC 3034
NGC 2787
+68°00'
NGC 3031 Bode's Nebula
STF 1400 M81
STF 1386 rej
Engelmann 41
NGC 2976
STF 1349
σ2
STF 1330 rej
Sigma 2 UMa
σ1
+67°00'
ρ
+66°00'
STF 1350
+65°00'
Milburn 347
+64°00'
OS 522
NGC 2820
τ
Tau UMa
23 Uma
10h 00m
09h 48m
09h 36m
09h 24m
09h 12m
Zone 19, Map 2
Mirror Image
STF 1253
27 UMa
NGC 2985
NGC 3066
+72°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+70°00'
+71°00'
STF 1280
Osvalds 3
NGC 2787
M82
+68°00'
NGC 3031 Bode's Nebula
M81
STF 1386 rej
STF 1400
+69°00'
NGC 3034
NGC 2976
ρ
σ2
+67°00'
STF 1349
Sigma 2 UMa
STF 1330 rej
σ1
+65°00'
Milburn 347
+66°00'
STF 1350
+64°00'
OS 522
NGC 2820
τ
Tau UMa
Hussey 123
23 Uma
09h 12m
09h 24m
09h 36m
09h 48m
10h 00m
Zone 19
Index
1 Reference Star; 9 Double Stars; 6 Galaxies
2
O
27 UMa ...................................................... 2
Osvalds 3 ................................................... 7
H
S
h2495 .......................................................... 2
Sigma 2 UMa ............................................ 8
STF 1330 rej.............................................. 5
STF 1349 ................................................... 6
STF 1350 ................................................... 6
STF 1362 ................................................... 3
STF 1378 ................................................... 3
STF 1386 rej.............................................. 8
N
NGC 2787................................................ 11
NGC 2976................................................ 12
NGC 2977.................................................. 4
NGC 2985.................................................. 4
NGC 3031................................................ 11
NGC 3034.................................................. 9
-1-
Zone 19
Zone 19, Map 1
Reference Star
27 UMa
Other name(s): HD 83506; SAO 6936
Rating: na
Position: 0943+7215
A
Magnitude
5.15
Separation PA
—
—
Year
—
Spectra
K0 III
Colors
Y
Notes:
This star is an infra-red emitter.
Scale Model (in which the Sun is a baseball):
This star would be 46 inches (117 cm) in diameter.
Distance (LY): 442
Total luminosity (Suns): 129
Double Stars
Easy
h2495
Rating: 5 E
Position: 0931+7326
A
B
Magnitude
10.13
10.53
Separation PA
—
—
38.0 318 -
Year
—
1991
Notes:
1895: 40.0 @ 322. 8 measurements.
Hipparcos gives discordant distances: 198 and 87 light years.
-2-
Spectra
G0
Colors
W
W
Zone 19
Observations:
C11 at 115x.
STF 1362
Other name(s): ADS 7446; HD 82685; SAO 6915
Rating: 2 E
Position: 0938+7305
A
B
Magnitude
6.39
6.58
Separation PA
—
—
4.9 126 -
Year
—
1998
Spectra
F2 V
F1 V
Colors
W
W
Notes:
1833: 5.0 @ 137. 76 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.10 inches; B = 10.0 inches.
Separation: AB = 1.73 miles.
Distance (LY): 227
Total luminosity (Suns): 16.5
STF 1378
Other name(s): ADS 7522
Rating: 4 E
Position: 0951+7436
A
B
Magnitude
9.50
10.71
Separation PA
—
—
5.7 +
359 -
Notes:
1832: 5.0 @ 2. 6 measurements.
-3-
Year
—
1991
Spectra
G
Colors
Y
O
Zone 19
Observations:
C11 at 115x.
Deep Sky Objects
Moderate
NGC 2977
Other Names: H I 282
Rating: 5 M
Position: 0944+7452
Type : Gal
Surface brightness: 12.2
Class: Sb:
Dimensions: 1.6' x 0.6'
Magnitude : 12.5
PA: 145
Observations:
C8 at 104x. It lies 20 min N of a 7m star.
Radial velocity (km/sec): +3,044
Difficult
NGC 2985
Other Names: UGC 5253, H I 78
Astronomical League Program: Herschel 400
Rating: 5 D
Position: 0950+7217
Type : Gal
Surface brightness: 13.0
Class: (R')SA(rs)ab I
Dimensions: 4' x 3'
Notes:
This is a Seyfert galaxy.
-4-
Magnitude : 11.3
PA: 0
Zone 19
Observations:
C8 at 65x. It has very low surface brightness and a starlike nucleus. The axis runs NS. An 11m star lies 2.5 min E and the bright 27 UMa lies 30 min W. A 12m star is 7 min
SE.
Radial velocity (km/sec): +1,424
Zone 19, Map 2
Double Stars
Easy
STF 1330 rej
Other name(s): HD 80260; SAO 14856
Rating: 4 E
Position: 0922+6711
A
B
Magnitude
9.37
11.52
Separation PA
—
—
25.2 +
303 =
Year
—
1991
Spectra
G
Colors
Y
W
Notes:
1893: 25.0 @ 303. 8 measurements.
Hipparcos/Tycho data show different distances for these stars; they may be optical.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.0 inches.
Separation: AB = 12.0 miles.
Distance (LY): 305
Total luminosity (Suns): 1.26
-5-
Zone 19
STF 1349
Other name(s): ADS 7399; HD 81787; SAO 14903
Rating: 3 E
Position: 0931+6733
A
B
Magnitude
7.53
9.15
Separation PA
—
—
19.2 =
166 +
Year
—
1991
Spectra
A2 V
A2
Colors
W
B
Notes:
1831: 19.2 @ 165. 23 measurements.
Hipparcos/Tycho data show different distances for these stars; they may be optical.
However, the stars show similar proper motion.
Observations:
C8 at 65x. Franks saw them as Y and bW.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.40 inches; B = 7.55 inches.
Separation: AB = 40.4 miles.
Distance (LY): 1,350
Total luminosity (Suns): 130
STF 1350
Other name(s): ADS 7425; HD 82285; SAO 14923
Rating: 3 E
Position: 0934+6648
A
B
C
Magnitude
8.21
8.26
9.00
Separation
—
10.3 131.2 +
PA
—
69 +?
215 +
Year
—
1991
1926
Spectra
F5 V
F5 V
G
Colors
W
W
B
Notes:
AB 1831: 10.4 @ 246. 53 measurements. Quadrant reversal?
Hipparcos/Tycho data show different distances for these stars; they may be optical.
However, the stars exhibit common proper motion.
AC 1863: 130.4 @ 214. 5 measurements.
-6-
Zone 19
Observations:
C8 at 65x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches; B = 13.2 inches; C = 20.6 inches.
Separation: AB = 11.9 miles; AC = 152 miles.
Distance (LY): 740
Total luminosity (Suns): 77
Osvalds 3
Other name(s): Odenkirchen 1?
Rating: 5 E
Position: 0943+7004
A
B
Magnitude
10.58
11.24
Separation PA
—
—
86.1 77 =
Year
—
1991
Spectra
M3
M4
Colors
rO?
O?
Notes:
1936: 89.0 @ 77. 6 measurements.
This pair seems to be identical to Odenkirchen 1, located at 0943+7002, with a 10.48
M2 primary and 11.2 companion 89" away at 77.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 56.1 inches; B = 63.8 inches.
Separation: AB = 5.10 miles.
Distance (LY): 38
Total luminosity (Suns): 0.01
-7-
Zone 19
STF 1386 rej
Other name(s): ADS 7566; SAO 15020
Rating: 3 E
Position: 0955+6854
Magnitude
9.41
9.43
9.84
9.93
A
B
C
D
CD
AB/CD
Separation PA
—
—
2.0 =
112 -
Year
—
1998
Spectra
F5
G
8.9 =
144.4
273 +
355
Colors
W
No
W
No
1991
1868
Notes:
AB 1832: 2.0 @ 116. 44 measurements. The stars have different proper motions.
AB-CD 1 measurement.
CD 1832: 8.9 @ 270. 16 measurements.
Observations:
C8 at 206x. It lies on the S edge of the galaxy M81 (NGC 3031). The B star has a
10m companion at 4" in pa 60. What depth perception! M81 lies just N and behind this
star and is perhaps a million times farther away.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 14.1 inches; C = 21.5 inches.
Separation: AB = 1.51 miles; CD = 6.72 miles; AB-CD = 109 miles.
Distance (LY): 486
Total luminosity (Suns): 9
Difficult
Sigma 2 UMa
Rating: 5 D
Other name(s): 13 UMa; STF 1306; ADS 7203; HD 78154; SAO 14788
Position: 0910+6708
A
B
C
Magnitude
4.80
8.73
10.22
Separation
—
3.9 199.4 -
PA
—
355 +!
148 =
-8-
Year
—
1997
1991
Spectra
F7 IV
K2 V
Colors
Y
Y
W
Zone 19
Notes:
AB 1819: 6.3 @ 267. Over 100 measurements. This pair has an orbital period of
600 years up to possibly 1100 years (e.g., Baize, 1948, says 1,067.10 years). Retrograde
motion, semi-major axis of 6.39".
AC 1879: 206.3 @ 148. 5 measurements.
Observations:
C8 at 697x Some observers see both as W. Webb saw the primary as G.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.20 inches; B = 28.0 inches.
Separation: AB = 2,112 feet; AC = 20.8 miles.
Distance (LY): 67
Total luminosity (Suns): 4.49
Deep Sky Objects
Easy
NGC 3034
Other Names: 3C 231, M 82 , H IV 79
Astronomical League Program: Herschel 400, Messier Certificate
Rating: 2 E
Position: 0956+6941
Type : Gal
Surface brightness: 12.8
Class: I0
Dimensions: 8' x 3'
Magnitude : 9.3
PA: 65
Notes:
It was discovered by J. Bode on December 31, 1774; Mechain rediscovered it in 1779,
and Messier added it to his list on February 9, 1781. William Herschel observed it (and
cataloged it) on September 30, 1802.
It is a known radio source and is undergoing extreme starburst activity (including over
100 brand new globular clusters, discovered by the Hubble Space Telescope). The star
formation rate near its center may be as high as 10 suns per year. (The radio noise
eminates from hot gas streamers flying outward at high velocity.) It is brighter in the
infrared than in the visible spectrum! Apparently, M82 collided with M81 about 100
million years ago.
-9-
Zone 19
Spectrographic studies show that gas is being ejected from it at about 600 miles per
second.
It is 40,000 light years in diameter.
Observations:
C8 at 83x. An interesting view, it is grainy, with an E-W axis. At high powers, dust
lanes are visible. One star lies just to the SW.
Model (where the Sun is a baseball):
Its diameter would be 9 million miles
Distance (LY): 12,000,000
Radial velocity (km/sec): +400
Luminosity (suns): 2,200,000,000
NGC 3031 (M81) and 3034 (M82)
Galaxies (SA(r)ab I-II and I 0)
Observed with C8 on 2/1/92; s7, t6
Magnification: 31x
- 10 -
Zone 19
Moderate
NGC 3031
Other Names: UGC 5318, M 81
Astronomical League Program: Messier Certificate
Rating: 2 M
Position: 0956+6904
Type : Gal
Surface brightness: 13.0
Class: SA(s)ab I-II
Dimensions: 18' x 10'
Magnitude : 7.9
PA: 157
Notes:
It was discovered by J. Bode on December 31, 1774; Messier added it to his list on
February 9, 1781.
It is known to be a radio source and is 70,000 light years in diameter. It is also a
Seyfert galaxy. It produced supernova 1993J.
It is the principal galaxy in the M81 Group, a group which includes NGC 2976, NGC
3077, NGC 2366, NGC 2403, and NGC 4236.
It probably has 210 or so globular clusters.
Observations:
C8 at 83x. It has a very bright nucleus and long, faint arms. The axis runs NW to SE,
and there seem to be dust lanes visible. Two very faint stars lie to the SE.
Model (where the Sun is a baseball):
It would be 20 million miles in diameter.
Distance (LY): 12,000,000
Radial velocity (km/sec): +77
Luminosity (suns): 7,800,000,000
NGC 2787
Other Names: UGC 4914, H I 216
Astronomical League Program: Herschel 400
Rating: 3 M
Position: 0919+6912
Type : Gal
Surface brightness: 12.9
Class: SB(r)0+
Dimensions: 2' x 1'
- 11 -
Magnitude : 12.0
PA: 117
Zone 19
Notes:
This is a Seyfert galaxy.
Steve Coe (of the Saguaro Astronomy Club in Phoenix, Arizona) points out that in
the NGC description, an 'r' appears, signifying it is somewhat resolved. He writes, "I see
this object looking much like a globular cluster; hence the illusion of partial resolvability
at 165x." (Steve was using a 13" Newtonian.)
Observations:
C8 at 65x. It has an oval shape (E-W) with a bright starlike nucleus. There is a 12m
star about 5 min S.
Distance (LY): 33,000,000
Radial velocity (km/sec): +768
Luminosity (suns): 1,400,000,000
Difficult
NGC 2976
Other Names: UGC 5221, H I 285
Astronomical League Program: Herschel 400
Rating: 5 D
Position: 0947+6755
Type : Gal
Surface brightness: 12.9
Class: SAc pec IV
Dimensions: 3' x 1'
Magnitude : 10.9
PA: 143
Notes:
It was discovered on November 8, 1801 by William Herschel.
It is 9,900 light years in diameter.
It is a member of the M81 Group.
It also exhibits chaotic internal structure.
Observations:
C8 at 83x. Large but not very bright. It has a NW-SE axis, and at high powers looks
a little mottled. An extremely faint star lies on the E edge. The nucleus is quite tiny but a
little brighter.
Model (where the Sun is a baseball):
Its diameter would be 3.4 million miles.
Distance (LY): 12,000,000
Radial velocity (km/sec): +171
Luminosity (suns): 500,000,000
- 12 -
Zone 19
Zone 19 Mini-Catalog
Double Stars
Star
Designation
Position
Rating
Map
STF 1362
0938+7305
2E
1
STF 1349
0931+6733
3E
2
STF 1350
0934+6648
3E
2
STF 1386 rej
0955+6854
3E
2
STF 1330 rej
0922+6711
4E
2
STF 1378
0951+7436
4E
1
h2495
0931+7326
5E
1
Osvalds 3
0943+7004
5E
2
Sigma 2 UMa
0910+6708
5D
2
Component
A
B
A
B
A
B
C
A
B
C
D
CD
A
B
A
B
A
B
A
B
A
B
C
Specifications
Mag
Sep from A
6.39
—
6.58
4.9 7.53
—
9.15
19.2 =
8.21
—
8.26
10.3 9.00
131.2 +
9.41
—
9.43
2.0 =
9.84
9.93
8.9 =
9.37
—
11.52
25.2 +
9.50
—
10.71
5.7 +
10.13
—
10.53
38.0 10.58
—
11.24
86.1 4.80
—
8.73
3.9 10.22
199.4 -
PA from A
—
126 —
166 +
—
69 +?
131.2 +
—
112 -
273 +
—
303 =
—
359 —
318 —
77 =
—
355 +!
199.4 -
Deep Sky Objects
Object
NGC 3034
Position
0956+6941
Rating
2E
Map
2
NGC 3031
NGC 2787
NGC 2977
0956+6904
0919+6912
0944+7452
2M
3M
5M
2
2
1
NGC 2976
0947+6755
5D
2
NGC 2985
0950+7217
5D
1
Type
Gal (I0)
Gal (SA(s)ab III)
Gal (SB(r)0+)
Gal (Sb:)
Gal (SAc pec
IV)
Gal
((R')SA(rs)ab I)
- 13 -
Specifications
Mag
Surface Br
9.3
12.8
7.9
12.0
12.5
13.0
12.9
12.2
10.9
12.9
11.3
13.0
Population