Zone 79, Master Map - extras.springer.comextras.springer.com/2007/978-0-387-46893-8/MC Files/Zone 79...

Zone 79, Master MapNormal View

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ξ

ρ

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Cocoon Nebula

North American Nebula

M39

CygnusLacerta

Zone Master, Normal View, 10 deg FOV

Zone 79, Map 1Normal Image

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Bur 365STF 2732

Argelander 41

h1587

NGC 7008h1606

Espin 2704

Bur 680

STF 2757

Espin 2705

Espin 98

Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.

Zone 79, Map 1Mirror Image

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Holden 41

Bur 365STF 2732

Argelander 41

h1587

NGC 7008h1606

Espin 2704

Bur 680

STF 2757

Espin 2705



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STF 2741

Bur 68

OS 425

NGC 7026NGC 7026Bur 158

NGC 7031

Espin 818

Argelander 42

OSS 215Bur 159IC 1369

h1631

h1635

Espin 1004

Bur 839Espin 820

Holden 44

NGC 7067

h1645



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STF 2741

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OS 425

NGC 7026NGC 7026

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NGC 7031

Espin 818

Argelander 42

OSS 215 Bur 159IC 1369

h1631

h1635

Espin 1004

Bur 839Espin 820



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Bark 1

Hipparcos 2979

IC 5076h1597

Espin 675

NGC 6991

NGC 6996

59 Cyg

Bur 1138

Hipparcos 3001

NGC 7026NGC 7026Bur 158

Roe 45

Argelander 42

OSS 215

Smart 128

Bur 159

Basel 12

NGC 7039

IC 1369

Bur 160

NGC 7048

h1629

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IC 5076h1597

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NGC 6996

59 Cyg

Bur 1138

Hipparcos 3001

NGC 7026NGC 7026

Bur 158

Roe 45

Argelander 42

OSS 215

Smart 128

Bur 159

Basel 12

NGC 7039

IC 1369

Bur 160

NGC 7048

h1629

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h1635



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South 786STF 2789

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STF 2803

NGC 7086

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Espin 35



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South 786STF 2789

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h1644

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NGC 7086

NGC 7092

Hipparcos 3070

h1669

h1671

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PK 93 +2.1

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Espin 825

h1681

Bur 374

Hussey 693

Argelander 43

Pi 2 Cyg



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NGC 7092

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M39

Espin 97

h1635

NGC 7062

NGC 7067

Espin 1102

h1644

NGC 7071

NGC 7082

Espin 100A. G. 272

Popovic 136Espin 1339IC 5117

Espin 1172

Rho Cyg

h1681

h1676

Espin 1275



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NGC 7048

h1629

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NGC 7067

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h1644

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Espin 100A. G. 272

Popovic 136Espin 1339

IC 5117

Espin 1172

Rho Cyg

h1681

h1676

Espin 1275



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NGC 7127

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h3062

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OS 456

NGC 7175

STF 2852

h1718Cygnus

Lacerta



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Bur 370

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h3062

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NGC 7175

STF 2852

h1718Cygnus

Lacerta



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NGC 7092

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h1669

h1671

Espin 34

PK 93 +2.1

Espin 102

Holden 47

Espin 825

h1681

Bur 374

Hussey 693

Argelander 43

Pi 2 Cyg

STF 2832Ball 56

Espin 1109

Espin 530



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NGC 7092

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h1669

h1671

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PK 93 +2.1

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Espin 825

h1681

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Hussey 693

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Pi 2 Cyg

STF 2832 Ball 56



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Cocoon Nebula h1676

Espin 1275

IC 5146

STF 2846

Espin 683

Walker 6

h1714

A 780

Espin 529

Bur 694

Popovic 145NGC 7209

h1723

Espin 2715

Cygnus



21h 42m 21h 48m 21h 54m 22h 00m 22h 06m

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Cocoon Nebulah1676

Espin 1275

IC 5146

STF 2846

Espin 683

Walker 6

h1714

A 780

Espin 529

Bur 694

Popovic 145NGC 7209

h1723

Cygnus


Zone 79

Index

2 Reference Stars, 64 Double Stars, 4 Planetary Nebulae, 14 Open Clusters

Flamsteed 59 Cyg.................................................. 11 A

A. G. 272 ............................................. 39 Argelander 42 ........................................ 8 Argelander 43 ...................................... 52 B

Ball 56.................................................. 52 Basel 12 ............................................... 16 Bur 1138 .............................................. 12 Bur 158 ................................................ 15 Bur 159 ................................................ 16 Bur 160 ................................................ 13 Bur 369 ................................................ 24 Bur 370 ................................................ 25 Bur 374 ................................................ 53 Bur 68 .................................................... 7 Bur 680 .................................................. 4 Bur 839 ................................................ 28 E

Espin 100 ............................................. 41 Espin 1004 ........................................... 31 Espin 1006 ........................................... 26 Espin 1011 ........................................... 47 Espin 102 ............................................. 30 Espin 1102 ........................................... 31 Espin 1172 ........................................... 40

Espin 1275 ........................................... 41 Espin 139 ............................................. 25 Espin 2704 ............................................. 3 Espin 2705 ............................................. 4 Espin 2708 ........................................... 22 Espin 2710 ........................................... 33 Espin 34 ............................................... 32 Espin 35 ............................................... 45 Espin 818 ............................................... 7 Espin 820 ............................................. 29 Espin 823 ............................................. 35 Espin 825 ............................................. 34 Espin 98 ............................................... 21 H

h1606 ..................................................... 3 h1629 ................................................... 14 h1631 ................................................... 23 h1635 ................................................... 14 h1644 ................................................... 32 h1645 ................................................... 29 h1669 ................................................... 33 h1671 ................................................... 27 h1676 ................................................... 40 h1681 ................................................... 28 h3062 ................................................... 46 Hipparcos 3001 .................................... 12 Hipparcos 3070 .................................... 27 Hipparcos 3098 .................................... 46

- 1 -

Zone 79

Holden 44 ............................................ 35 Holden 47 ............................................ 34 Holden 50 ............................................ 47 Hussey 693 .......................................... 53 I

IC 1369 ................................................ 19 IC 5146 ................................................ 55 N

NGC 7008.............................................. 6 NGC 7026............................................ 19 NGC 7031............................................ 10 NGC 7039............................................ 17 NGC 7048............................................ 17 NGC 7062............................................ 43 NGC 7067............................................ 38 NGC 7071............................................ 44 NGC 7082............................................ 42 NGC 7086............................................ 36 NGC 7092............................................ 37 NGC 7127............................................ 50 NGC 7128............................................ 49

NGC 7175 ............................................ 50 O

OS 425 ................................................... 9 OS 456 ................................................. 48 OSS 215 ............................................... 13 P

Pi 2 Cyg ............................................... 51 PK 93 +2.1 ........................................... 54 R

Rho Cyg ............................................... 39 S

Smart 128............................................. 15 South 786 ............................................. 20 STF 2757................................................ 5 STF 2789.............................................. 21 STF 2800.............................................. 30 STF 2803.............................................. 23 STF 2832.............................................. 51 STF 2846.............................................. 55

- 2 -

Zone 79

Zone 79, Map 1

Double Stars

Easy Espin 2704 Rating: 3 E HD 200803; SAO 33097 Position: 2104+5358 Magnitude Separation PA Year Spectra Colors A 8.52 — — — A2 W B 8.86 54.7 - 96 - 1997 A0 W Notes:

1902: 55.7 @ 97. 8 measurements. The stars share common proper motion even though Hipparcos gives different

distances (850 and 5,440 light years). Observations:

C8 at 104x. h1606 Rating: 4 E Bur 1498 (C) Position: 2101+5432 Magnitude Separation PA Year Spectra Colors A 8.52 — — — K7 O B 11.08 18.5 + 184 - 1993 W Notes:

1901: 18.4 @ 186. 7 measurements. Observations:

C11 at 115x. The C star of the WDS is actually the planetary nebula NGC 7008.

- 3 -

Zone 79

Espin 2705 Rating: 4 E ADS 14642; HD 235441; SAO 33133 Position: 2106+5308 Magnitude Separation PA Year Spectra Colors A 9.48 — — — A7 W B 10.00 8.7 - 15 -! 1992 O Notes:

1910: 9.2 @ 262. 3 measurements. Quadrant reversal in 1910? Observations:

C11 at 115x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 9.47 inches. Separation: AB = 2.97 miles.

Distance (LY): 219 Total luminosity (Suns): 0.98 Bur 680 Rating: 5 E ADS 14626; HD 201113; SAO 33125 Position: 2105+5340 Magnitude Separation PA Year Spectra Colors A 8.23 — — — A0 W B 9.44 0.5 = 290 +! 1992 No C 11.15 21.5 - 33 - 1985 B Notes:

AB 1877: 0.5 @ 131. 37 measurements. AC 1885: 23.4 @ 34. 9 measurements.

Observations:

C8 at 104x.

- 4 -

Zone 79

Scale model (in which the Sun is the size of a baseball): Diameter: A = 6.21 inches. Separation: AB = 4,963 feet; AC = 40.5 miles.

Distance (LY): 1,210 Total luminosity (Suns): 48

Moderate STF 2757 Rating: 3 M ADS 14615; HD 200943; SAO 33110 Position: 2105+5224 Magnitude Separation PA Year Spectra Colors A 7.59 — — — B9.5 V W B 9.16 1.9 = 265 - 1995 W Notes:


C11 at 339x. Scale Model (in which the Sun is a baseball): Component Diameter, in Distance, mi A 9.6 na B 2.46 Scale model (in which the Sun is the size of a baseball): Diameter: A = 9.60 inches. Separation: AB = 2.46 miles.

Distance (LY): 830 Total luminosity (Suns): 61

- 5 -

Zone 79

Deep Sky Objects

Moderate NGC 7008 Rating: 3 M Other Names: PK 93+5.2, H I 192 Astronomical League Program: Herschel 400 Club Position: 2101+5433 Type : Pn Class: 3 Magnitude : 12.0 Dimensions: 86" x 69" Observations:

C8 at 65x. A bright star lies on the line of sight. Use high power for the best view, but don't expect to see many details. It seems that the ends (N and S) are a bit brighter. An 11m star lies just S and the double h1606 (9.3m-10.2m; 18" @ 180) also lies south.

C11 at 115x with O-III filter. I could not detect it on a slightly hazy night without the O-III. It is large and bright with the filter, and appears to have two lobes. On another night, with somewhat better seeing and transparency, it was very easy and large. Model (where the Sun is a baseball): Its diameter would be 349 miles. Distance (LY): 2,600

NGC 7008Planetary nebula

Observed with C11 on 9/16/03Magnification: 140x + O-II

Luminosity (suns): 8

- 6 -

Zone 79

Zone 79, Map 2

Double Stars

Easy

Bur 68 Rating: 2 E ADS 14520; HD 200101 Position: 2100+5013 Magnitude Separation PA Year Spectra Colors A 8.60 — — — A5 W B 9.01 1.9 = 150 - 1991 W Notes:


C11 at 339x. This star is the middle star of a dogleg of stars. Scale model (in which the Sun is the size of a baseball): Diameter: A = 8.43 inches. Separation: AB = 2.04 miles.

Distance (LY): 690 Total luminosity (Suns): 23 Espin 818 Rating: 4 E ADS 14673; HD 201416; SAO 50479 Position: 2108+4851 Magnitude Separation PA Year Spectra Colors A 7.74 — — — G5 III Y B 12.12 58.3 - 64 + 1984 W

- 7 -

Zone 79

Notes: 1900: 61.0 @ 62. 5 measurements.

Observations:

C8 at 104x. The position angle is 230. Scale model (in which the Sun is the size of a baseball): Diameter: A = 39.0 inches. Separation: AB = 60.0 miles.

Distance (LY): 660 Total luminosity (Suns): 30.45 Argelander 42 Rating: 4 E SAO 50494 Position: 2109+4815 Magnitude Separation PA Year Spectra Colors A 8.58 — — — K2 O B 9.44 22.2 - 59 + 1974 G0 W Notes:

1899: 24.1 @ 57. 11 measurements. The stars have different proper motions. Observations:

C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 27.8 inches; B = 18.4 inches. Separation: AB = 6.27 miles.

Distance (LY): 181 Total luminosity (Suns): 1.3

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Zone 79

Difficult OS 425 Rating: 4 D Bur 1210; ADS 14531; HD 200177; SAO 50340 Position: 2100+4840 Magnitude Separation PA Year Spectra Colors A 7.30 — — — B9p W B 13.56 1.4 - 104 - 1924 ? C 10.77 14.9 + 27 - 1924 O D 10.80 1924 O CD 4.1 - 133 - Notes:

AB 1890: 2.3 @ 120. 7 measurements. AC 1847: 12.2 @ 28. 11 measurements. Hipparcos/Tycho data show different

distances for these stars; they may be optical. CD 1890: 4.3 @ 134. 6 measurements.

Observations:

C8 at 206x. Star B was very difficult. An 11m star is 30" @ 15. Scale model (in which the Sun is the size of a baseball): Diameter: A = 4.80 inches. Separation: AB = 1.00 mile; AC = 10.5 miles; CD = 2.90 miles.


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Zone 79

Deep Sky Objects

Easy NGC 7031 Rating: 4 E Other Names: Collinder 430, H VIII 74 Astronomical League Program: Herschel II Club Position: 2107+5050 Type : Oc Class: III 2m Magnitude : 9.1 Dimensions: 5' Cluster population: 50 Notes:

It is 5 light years in diameter and 137 million years old. Its earliest stars are B5 types, and at least 62 stars are known to be members. The brightest star is 11.3m.

It lies 28,000 light years from the galactic center and 100 light years above the galactic plane. Observations:

C8 at 83x. Faint and grainy; at 200x, seven stars were resolved. It forms a loose arrowhead, pointing E.

C11 at 115x. Very small and poor group; five stars in an oblong shape. 12m to 14m in magnitude. Model (where the Sun is a baseball):

Its diameter would be 1,540 miles. The stars would be 210 miles apart.

Distance (LY): 2,930 Luminosity (suns): 154

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Zone 79

Zone 79, Map 3

Double Stars

Easy 59 Cyg Rating: 3 E V832 Cyg; STF 2743; ADS 14526; HD 200120; SAO 50335 Position: 2100+4731 Magnitude Separation PA Year Spectra Colors A 4.59 — — — B1 ne Y B 9.43 20.7 + 353 + 1998 A8 III B C 11.62 26.6 - 140 - 1998 ? D 11.20 70.3 +!! 59 -!! 1998 ? Notes:

AB 1831: 20.2 @ 352. 20 measurements. The stars share a small common proper motion. Star A is a spectroscopic binary with evidence of mass loss. It is also an interferometric binary, and an irregular variable (perhaps related to the shell variability).

AC 1842: 26.7 @ 142. 11 measurements. AD 1913: 38.3 @ 220. 4 measurements. It is a member of the Cyg OB7 Association, and is a shell star (but the shell seems to

vary from year to year). Observations:

C8 at 65x. Very rich field. Scale model (in which the Sun is the size of a baseball): Diameter: A = 0.79 inches; B = 10.14 inches. Separation: AB = 36.5 miles; AC = 46.9 miles; AD = 124 miles.

Distance (LY): 1,130 Total luminosity (Suns): 1,322

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Zone 79

Bur 1138 Rating: 4 E Kuiper 104ADS 14585; HD 200595 Position: 2103+4551 Magnitude Separation PA Year Spectra Colors A 6.50 — — — B8 V W B 7.40 0.1 - 170 + 1985 No C 7.69 153.9 - 326 + 1991 K2 Y Notes:

AB 1888: 0.3 @ 6. 54 measurements. Called a spectroscopic binary in the Bright Star Catalog. This may be due to motion in the close visual pair.

AC 1894: 167.8 @ 313. 3 measurements. C displays a very large difference in proper motion. May be optical because Hipparcos gives different distances (1,350 and 63 light years).

CD (13.30m) 1934: 2.8 @ 104. 1962: 3.3+ @ 100-. 7 measurements. CE (12.90m) 1908: 17.1 @ 68. 1962: 5.6-! @ 250+!!. 6 measurements. Optical.

Observations:

C8 at 104x. Bright and rich field. Hipparcos 3001 Rating: 4 E Position: 2104+4631 Magnitude Separation PA Year Spectra Colors A 9.34 — — — B8 bW B 10.57 18.3 + 93 - 1991 pO Notes:


C11 at 115x.

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Zone 79

OSS 215 Rating: 4 E ADS 14720; HD 201836; SAO 50536 Position: 2110+4741 Magnitude Separation PA Year Spectra Colors A 6.46 — — — B6 IV W B 7.35 134 189 1956 Y Notes:

Hipparcos/Tycho data show different distances for these stars (1,500 and 6,500 light years); they may be optical. Observations:

C8 at 104x. Rich field. Bur 160 Rating: 4 E ADS 14745; HD 202068; SAO 50561 Position: 2112+4542 Magnitude Separation PA Year Spectra Colors A 7.83 — — — B8 V W B 11.78 57.4 + 155 + 1916 bW Notes:


C8 at 104x. It lies on the E side of the open cluster NGC 7039. Scale model (in which the Sun is the size of a baseball): Diameter: A = 10.2 inches. Separation: AB = 96.7 miles.


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Zone 79

h1629 Rating: 4 E Position: 2115+4637 Magnitude Separation PA Year Spectra Colors A 9.74 — — — B8 W B 10.13 12.5 - 71 - 1991 O Notes:


C8 at 104x. Very rich field. h1635 Rating: 5 E Position: 2118+4747 Magnitude Separation PA Year Spectra Colors A 10.23 — — — W B 12.49 15.5 - 0 = 1912 W Notes:

1909: 15.8 @ 360. 2 measurements. There are two more very faint comes.

Observations:

C8 at 104x. Very faint and lonely.

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Zone 79

Moderate Smart 128 Rating: 4 M HD 201700; SAO 50517 Position: 2110+4624 Magnitude Separation PA Year Spectra Colors A 8.40 — — — B3 IV W B 13.21 12.7 170 1910 ? Notes:

1 measurement. Observations:

C11 at 115x. A rarity— a Smart pair bright enough to be in the Henry Draper catalog! Bur 158 Rating: 5 M ADS 14627; HD 201076; SAO 50439 Position: 2106+4748 Magnitude Separation PA Year Spectra Colors A 7.43 — — — A0 V W B 13.48 11.1 + 310 - 1943 ? Notes:




- 15 -

Zone 79

Difficult Bur 159 Rating: 4 D Kuiper 105; Leavenworth; AC = OSS 215; ADS 14720; HD 201836; SAO 50536 Position: 2111+4742 Magnitude Separation PA Year Spectra Colors A 6.46 — — — B5 IV W B 9.14 1.3 = 313 - 1991 A1 V ? C 7.35 135.7 + 189 - 1999 Y Notes:

AB 1876: 1.3 @ 318. 21 measurements. AC 1875: 134.1 @ 190. 12 measurements. There are three other very faint comes.

Observations:

C8 at 206x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 14.2 inches; B = 8.70 inches. Separation: AB = 3.04 miles; AC = 317 miles.

Distance (LY): 1,500 Total luminosity (Suns): 646 Deep Sky Objects

Easy Basel 12 Rating: 5 E Position: 2111+4614 Type : OC Magnitude : 9.0 Dimensions: 7' Observations:

C11 at 98x. Small, loose group in a very rich field. Mostly 13m stars with one 7.5m member. I counted 11 stars besides the bright one.

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Zone 79

Moderate

NGC 7039 Rating: 4 M Other Names: Collinder 431 Position: 2111+4539 Type : Oc Class: IV 2m Magnitude : 7.6 Dimensions: 25' Cluster population: 50 Notes:

It is 17 light years in diameter and 66 million years old. This cluster contains 185 known members, and lies 27,700 light years from the galactic center and 80 light years below its plane. It contains at least 3 Ap stars and 6 Am stars.

It is about 1 billion years old; the brightest cluster member is 11.16m. Observations:

C8 at 83x. Very bright and open. Two stars dominate— a 6.2m star on the W side, and a 6.8m star on the NE side. The area between them is rich and faint.

C11 at 115x. It is an oblong group, about 5 min x 20 min, with a 6m Y star near the center. All others are very faint. About 60 stars, and very grainy look. Model (where the Sun is a baseball):

Its diameter would be 5,380 miles. Its member stars would be 734 miles apart

Distance (LY): 3,100 Luminosity (suns): 685 NGC 7048 Rating: 4 M Other Names: PK 88-1.1 Position: 2114+4616 Type : Pn Class: 3b Magnitude : 11.0 Dimensions: 60" x 50" Notes: It was discovered by Edouard Stephan (of Stephan’s Quintet) in 1878.

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Zone 79

Observations: C8 at 65x. There seems to be a foreground star (8m) just S of it. It is an easy object,

and looks best under medium powers. C11 at 115x + O-III. It shows as a large oval 1 min E of a 9m star. A 12m star is

involved on the S end. Model (where the Sun is a baseball):

Its diameter would be 365 miles.


NGC 7048Planetary nebula

Observed with C11 on 9/16/03; s8, t7Magnification: 140x + O-II

- 18 -

Zone 79

IC 1369 Rating: 5 M Other Names: Collinder 432 Position: 2112+4744 Type : Oc Class: I 1m Magnitude : 6.8 Dimensions: 4' Cluster population: 40 Notes:

It is 6 light years in diameter and 1.3 billion years old. Observations:

C8 at 206x. It is a nebulous knot that only resolved into four stars at 200x. At this power, a dark void appears in the center.

C11 at 56x (Okie-Tex Star Party, 2005) . A wonderful ball of stardust just east of OSS 215. Round. 20 stars or so of 13m.... Two 11m stars lie on the S edge. Model (where the Sun is a baseball):

Its diameter would be 1,930 miles and its stars would be 282 mi apart

Distance (LY): 6,790 Luminosity (suns): 6,870

Difficult NGC 7026 Rating: 3 D Other Names: PK 89+0.1 Position: 2106+4751 Type : Pn Class: 3a Magnitude : 12.0 Dimensions: 28" x 6" Observations:

C8 at 65x. It was a faint, fuzzy star. It runs NE-SW. It is blue-green in color, and a 9m star lies 30" away.

C11 at 115x. It looks like a fuzzy star 1 min N of a 10m star. With the O-III filter, it is a little better shown, but still yields few details. Very bright center when filtered, though.

- 19 -

Zone 79

C11 at 98x with O-III filter. Oval with a bright, stellar center some 30" away from a 9.6m star. Once I knew where it was (with the O-III), it was easy to see without the O-III. Very rich field. Model (where the Sun is a baseball):

Its diameter would be 245 miles.


Zone 79, Map 4

Double Stars

Easy

South 786 Rating: 2 E HD 203320; SAO 33323 Position: 2120+5303 Magnitude Separation PA Year Spectra Colors A 6.94 — — — K2 O! B 9.16 47.0 - 300 - 1998 B! Notes:


C8 at 104x. Nice colors! A 6.5m pair (7" separation at pa 100) is 4 min ESE. Scale model (in which the Sun is the size of a baseball): Diameter: A = 25.0 inches. Separation: AB = 41.8 miles.


- 20 -

Zone 79

STF 2789 Rating: 2 E ADS 14878; HD 203380; SAO 33334 Position: 2120+5258 Magnitude Separation PA Year Spectra Colors A 7.71 — — — G5 V W B 7.87 6.4 + 114 - 1998 W C 11.80 126.6 172 1913 ? Notes:

AB 1832: 5.9 @ 116. 80 measurements. Hipparcos/Tycho data show different distances for these stars; they may be optical. However, the stars show similar proper motion.

AC 1 measurement. Observations:

C8 at 83x. Webb saw them as W and Y. Moderate field. Scale model (in which the Sun is the size of a baseball): Diameter: A = 3.00 inches. Separation: AB = 7.99 miles; AC = 158 miles.

Distance (LY): 800 Total luminosity (Suns): 91 Espin 98 Rating: 3 E ADS 14865; HD 203283; SAO 33315 Position: 2119+5219 Magnitude Separation PA Year Spectra Colors A 7.32 — — — A0 V Y B 10.10 26.1 + 310 - 1987 B! C 10.13 29.8 - 87 = 1991 ? Notes:

AB 1897: 26 @ 311. 10 measurements. AC 1897: 30.3 @ 87. 11 measurements. Burnham found that C was double with a 14.2m companion at 7.3 @ 262.

- 21 -

Zone 79

Observations:

C8 at 83x. An O star is 40" @ 60. Scale model (in which the Sun is the size of a baseball): Diameter: A = 9.00 inches. Separation: AB = 41.1 miles; AC = 46.9 miles.

Distance (LY): 1,010 Total luminosity (Suns): 117 Espin 2708 Rating: 3 E HD 203764; SAO 33363 Position: 2122+5218 Magnitude Separation PA Year Spectra Colors A 8.69 — — — A0 W B 8.52 29.9 + 40 = 1991 A3 W Notes:

1878: 29 @ 40. 11 measurements. The stars have different proper motions. However, Hipparcos shows them to be

approximately the same distance from earth (1,020 and 1,140 light years). Observations:

C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 6.38 inches; B = 7.63 inches. Separation: AB = 47.6 miles.


- 22 -

Zone 79

STF 2803 Rating: 3 E Guillaume 35 (C); ADS 15035; HD 204905; SAO 33468 Position: 2130+5256 Magnitude Separation PA Year Spectra Colors A 7.25 — — — A0 IV Y B 9.48 26.0 + 285 - 1999 F8 L C 11.00 84.9 + 18 + 1985 No Notes:

AB 1832: 22.2 @ 290. 22 measurements. Hipparcos/Tycho data show different distances for these stars; they may be optical. The stars have a small difference in proper motion.

AC 1898: 82.3 @ 18. 11 measurements. Observations:

C8 at 83x. Very rich field. Scale model (in which the Sun is the size of a baseball): Diameter: A = 11.7 inches; B = 16.3 inches. Separation: AB = 23.9 miles; AC = 78.1 miles.

Distance (LY): 590 Total luminosity (Suns): 34 h1631 Rating: 5 E HD 202616; SAO 33260 Position: 2115+5117 Magnitude Separation PA Year Spectra Colors A 6.99 — — — K0 Y B 11.44 49.3 + 17 = 1925 dB Notes:

1902: 49.2 @ 17. 4 measurements.

- 23 -

Zone 79

Observations: C8 at 104x.

Scale model (in which the Sun is the size of a baseball): Diameter: A = 22.7 inches. Separation: AB = 43.9 miles.

Distance (LY): 570 Total luminosity (Suns): 41 Bur 369 Rating: 5 E ADS 14989; HD 204401; SAO 33431 Position: 2127+5245 Magnitude Separation PA Year Spectra Colors A 7.60 — — — B9 V W B 13.57 17.2 + 30 - 1917 ? C 12.49 52.1 + 63 = 1917 ? Notes:


Observations:

C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 9.60 inches. Separation: AB = 18.3 miles; AC = 55.2 miles.


- 24 -

Zone 79

Moderate Bur 370 Rating: 4 M A1968; ADS 15075; HD 205236 Position: 2132+5245 Magnitude Separation PA Year Spectra Colors A 8.77 — — — A0 W B 9.44 3.4 - 324 - 1992 W Notes:

AB 1876: 3.5 @ 327. 19 measurements. B has two very close 14.5m companions.

Observations:

C8 at 280x. Extremely rich field! Scale model (in which the Sun is the size of a baseball): Diameter: A = 6.41 inches. Separation: AB = 1.10 miles.

Distance (LY): 191 Total luminosity (Suns): 1.2 Espin 139 Rating: 5 M ADS 14903 Position: 2121+5323 Magnitude Separation PA Year Spectra Colors A 10.07 — — — W B 11.60 5.1 - 355 + 1928 ? Notes:


C11 at 115x. This pair is the N vertex of a flat triangle.

- 25 -

Zone 79

Espin 1006 Rating: 5 M ADS 14948; HD 204037; SAO 33387 Position: 2124+5227 Magnitude Separation PA Year Spectra Colors A 8.11 — — — A0p W B 11.89 7.9 - 48 - 1991 ? Notes:




- 26 -

Zone 79

Zone 79, Map 5

Double Stars

Easy Hipparcos 3070 Rating: 3 E HD 235542 Position: 2134+5045 Magnitude Separation PA Year Spectra Colors A 8.70 — — — B8 W B 8.76 5.4 = 348 + 1991 W Notes:


C11 at 115x. Nice! This pair is the W vertex of a small 9m triangle. Scale model (in which the Sun is the size of a baseball): Diameter: A = 4.45 inches. Separation: AB = 72.5 miles.

Distance (LY): 8,600 Total luminosity (Suns): 3,730 h1671 Rating: 3 E ADS 15149; HD 205951; SAO 33582 Position: 2137+5050 Magnitude Separation PA Year Spectra Colors A 9.50 — — — K0 O B 10.02 9.7 = 326 - 1990 W

- 27 -

Zone 79

Notes: 1902: 9.7 @ 327. 5 measurements.

Observations:

C8 at 104x. Extremely rich field is a nice backdrop. Scale model (in which the Sun is the size of a baseball): Diameter: A = 26.5 inches. Separation: AB = 2.27 miles.

Distance (LY): 150 Total luminosity (Suns): 0.4 h1681 Rating: 3 E ADS 15207 Position: 2140+4825 Magnitude Separation PA Year Spectra Colors A 9.38 — — — W B 10.09 7.1 + 289 -? 1967 O Notes:


C8 at 104x. Very rich field. Quadrant reversal?

Distance (LY): 184 Total luminosity (Suns): 0.7 Bur 839 Rating: 4 E ADS 14885; HD 203416; SAO 50731 Position: 2120+4921 Magnitude Separation PA Year Spectra Colors A 8.11 — — — M6 III O B 11.80 15.3 + 205 + 1996 ? C 10.06 27.2 + 200 + 1996 W

- 28 -

Zone 79

Notes: AB 1881: 15.2 @ 202. 6 measurements. AC 1881: 21.5 @ 197. 10 measurements.

Observations:

C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 76.5 inches. Separation: AB = 35.3 miles; AC = 62.8 miles.

Distance (LY): 1,480 Total luminosity (Suns): 128 Espin 820 Rating: 4 E ADS 14895 Position: 2121+4923 Magnitude Separation PA Year Spectra Colors A 9.22 — — — F8 W B 11.11 35.2 + 60 = 1991 F8 B Notes:

1900: 33.5 @ 60. 7 measurements. May be optical because Hipparcos gives different distances (398 and 63 light years).

B has a 12.7m companion at 3.2 @ 291 (1909). Observations:

C8 at 104x. A nice double star is 8 min SW. A 7m W star is 10 min WNW. h1645 Rating: 4 E ADS 14961; HD 204118 Position: 2125+5015 Magnitude Separation PA Year Spectra Colors A 8.84 — — — G0 W B 10.72 8.2 + 38 - 1937 W?

- 29 -

Zone 79

Notes: 1909: 7.7 @ 39. 3 measurements. This system may be optical as Hipparcos shows different distances (291 and 73 light

years). Observations:

C11 at 115x. STF 2800 Rating: 4 E ADS 15030; SAO 50919 Position: 2129+4952 Magnitude Separation PA Year Spectra Colors A 9.09 — — — A5 W B 10.12 9.1 = 254 - 1991 O Notes:



Distance (LY): 1,800 Total luminosity (Suns): 81 Espin 102 Rating: 4 E ADS 15158; HD 206041; SAO 51123 Position: 2138+4829 Magnitude Separation PA Year Spectra Colors A 7.18 — — — B8 W B 10.59 11.5 - 36 - 1991 W Notes:

AB 1894: 11.9 @ 37. 8 measurements.

- 30 -

Zone 79

Observations:

C8 at 104x. Two 11m stars complete a nice faint triangle with this pair. Scale model (in which the Sun is the size of a baseball): Diameter: A = 4.04 inches. Separation: AB = 43.1 miles.

Distance (LY): 2,400 Total luminosity (Suns): 660 Espin 1102 Rating: 5 E ADS 14966 Position: 2125+4819 Magnitude Separation PA Year Spectra Colors A 10.53 — — — W B 12.30 46.7 195 1911 W Notes:

1 measurement. There are two other very faint comes.

Observations:

C8 at 104x. Rich field.

Moderate Espin 1004 Rating: 4 M ADS 14857; HD 235485; SAO 33310 Position: 2119+5039 Magnitude Separation PA Year Spectra Colors A 9.11 — — — K2 O B 12.20 7.1 219 1910 W? Notes:

1 measurement.

- 31 -

Zone 79


Espin 34 Rating: 4 M ADS 15145; HD 205918 Position: 2137+5032 Magnitude Separation PA Year Spectra Colors A 8.36 — — — A0 W B 9.20 2.8 + 132 - 1956 O? C 9.36 39.2 - 70 = 1991 Y Notes:


Observations:

C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 6.26 inches. Separation: AB = 2,376 feet; AC = 6.36 miles.

Distance (LY): 104 Total luminosity (Suns): 0.693 h1644 Rating: 5 M SAO 50808 Position: 2125+4801 Magnitude Separation PA Year Spectra Colors A 9.35 — — — A0 W B 11.11 24.5 + 119 + 1912 W C 12.30 36.0 42 1912 ? Notes:

AB 1909: 24.2 @ 118. 2 measurements. AC 1 measurement.

- 32 -

Zone 79


Scale model (in which the Sun is the size of a baseball): Diameter: A = 6.62 inches. Separation: AB = 37.9 miles; AC = 55.6 miles.

Distance (LY): 990 Total luminosity (Suns): 18 Espin 2710 Rating: 5 M V1934 Cyg; ADS 14962; HD 204131; SAO 50817 Position: 2125+4919 Magnitude Separation PA Year Spectra Colors A 6.57 — — — B9p W B 12.60 20.3 + 164 + 1924 ? Notes:

1907: 19.2 @ 162. 2 measurements. The primary is variable. Observations:


Distance (LY): 570 Total luminosity (Suns): 60.2 h1669 Rating: 5 M ADS 15135; HD 205795; SAO 33567 Position: 2136+5030 Magnitude Separation PA Year Spectra Colors A 7.16 — — — A2 V: W B 11.64 15.6 + 240 + 1902 ?

- 33 -

Zone 79

Notes: 1900: 14.9 @ 238. 2 measurements. Hipparcos/Tycho mission data show different distances for these stars (680 and 28

light years); they may be optical. Observations:

C8 at 104x. Extremely rich field! Holden 47 Rating: 5 M ADS 15168 Position: 2139+4958 Magnitude Separation PA Year Spectra Colors A 8.00 — — — Y B 13.89 6.7 + 225 - 1908 W Notes:


C11 at 115x.


Difficult

Espin 825 Rating: 3 D ADS 15201; HD 206312; SAO 51163 Position: 2140+4908 Magnitude Separation PA Year Spectra Colors A 7.14 — — — K2 III O B 11.70 9.6 253 1909 ? C 9.53 57.3 + 285 - 1991 B Notes:

AB 1 measurement. AC 1894: 55.9 @ 286. 9 measurements.

- 34 -

Zone 79

Observations:

C8 at 83x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 49.5 inches. Separation: AB = 18.1 miles; AC = 108 miles.

Distance (LY): 1,210 Total luminosity (Suns): 220 Holden 44 Rating: 4 D ADS 14941; HD 203918; SAO 33380 Position: 2124+5031 Magnitude Separation PA Year Spectra Colors A 8.09 — — — F8 W B 10.96 2.3 - 261 - 1991 Y Notes:



Distance (LY): 297 Total luminosity (Suns): 4.24 Espin 823 Rating: 5 D ADS 14987; HD 204374; SAO 50854 Position: 2126+4917 Magnitude Separation PA Year Spectra Colors A 7.97 — — — A0 W B 12.50 9.3 278 1909 W

- 35 -

Zone 79

Notes: 1 measurement.

Observations:

C8 at 104x. Very, very rich field to the W. Scale model (in which the Sun is the size of a baseball): Diameter: A = 6.11 inches. Separation: AB = 12.2 miles.

Distance (LY): 840 Total luminosity (Suns): 41 Deep Sky Objects

Easy

NGC 7086 Rating: 2 E Other Names: H VI 32 Astronomical League Program: Herschel 400 Club Position: 2131+5135 Type : Oc Class: II 2m Magnitude : 9.4 Dimensions: 9' Cluster population: 50 Notes:

It is 85 million years old. The earliest star left is A5, and 80 stars are known to be members. The brightest star is 10.2m.

It lies 28,000 light years from the galactic center and just above its plane. Observations:

C8 at 104x. Rich and nebulous ("oatmeal" to Steve Coe) at low powers. Note the SE quadrant especially— it is very rich.

C11 at 115x. Faint but rich and round group. I counted 24 stars. Model (where the Sun is a baseball):

Its diameter would be 3,290 miles and its stars would be 437 miles apart


- 36 -

Zone 79

NGC 7092 Other Names: MeAstronomical Leag Position: 2132+4 Type : Oc Dimensions: 31' Notes:

It was known this catalog on Oct

It is 8 light yeaThe brightest star

It lies 27,700 li

NGC 7086Open cluster (II 2 m; 50 stars)Observed with C8 on 7/29/95

Magnification: 104x

Rating: 4 E lotte 236; Collinder 438, M39 e Program: Messier Club, Urban Deep Sky Club

826

Class: III 2m Magnitude : 5.2 Cluster population: 28

o Aristotle (325 BC). Le Gentil noted it in 1750; Messier added it to ober 24, 1764. rs in diameter and 270 million years old. Its earliest stars are A0 types. is 6.8m. ght years from the galactic center and just below its plane.

- 37 -

Zone 79

Observations: 10x. This group looks best in the spotter. Three 8m stars lie on the N edge. C11 at 115x. Very large and bright, very open. Mostly W stars.

Model (where the Sun is a baseball):

Its diameter would be 2,320 miles. Its stars would be 382 miles apart

Distance (LY): 1,060 Luminosity (suns): 731 NGC 7067 Rating: 4 M Other Names: H VII 50 Astronomical League Program: Herschel II Club Position: 2124+4801 Type : Oc Class: II 1p Magnitude : 9.7 Dimensions: 3' Cluster population: 20 Notes:

It is 10 light years in diameter and 13 million years old. The earliest star type is B0, and 47 stars are known to be members. The brightest star is 11.2m.

It lies 30,500 light years from the galactic center and 350 light years below its plane. Observations:

C8 at 104x. A flat, grainy triangle. C11 at 193x. Very small and poor group. Four stars counted plus some grainy

background. Model (where the Sun is a baseball):

Its diameter would be 3,090 miles with stars 570 miles apart


- 38 -

Zone 79

Zone 79, Map 6

Reference Star Rho Cyg (73 Cyg; HD 205435; SAO 51035) Position: 2134+4535 Mag : 3.98 Spectrum : G8 III Color : Y Assumed distance: 124 light years Assumed luminosity (suns): 31 Notes: This star is a member of the Ursa Major moving stream and an infra-red source.

Double Stars

Easy A. G. 272 Rating: 3 E ADS 15062 Position: 2132+4508 Magnitude Separation PA Year Spectra Colors A 9.84 — — — W B 10.02 4.1 = 183 = 1999 Y Notes:


C11 at 115x.


- 39 -

Zone 79

Espin 1172 Rating: 4 E ADS 15104 Position: 2134+4725 Magnitude Separation PA Year Spectra Colors A 10.98 — — — B8 III W B 10.40 6.5 - 105 - 1988 No C 11.60 16.4 + 207 - 1987 W? Notes:

AB 1912: 6.6 @ 106. 3 measurements. AC 1912: 16.2 @ 209. 2 measurements. There are 9 more very faint comes.

Observations:

C8 at 104x. It sits at the N end of a circlet of 11m stars, like a diamond ring. Rich field.

h1676 Rating: 5 E HD 206268; SAO 51158 Position: 2140+4712 Magnitude Separation PA Year Spectra Colors A 7.64 — — — K0 Y B 10.59 28.9 - 135 = 1991 dB Notes:

AB 1902: 29.6 @ 135. 9 measurements. The Tycho-2 Catalogue indicates a single star entry. Magnitude of A is from Tycho Catalog; magnitude of B is from the Guide Star

Catalog, but Franco Romero previously calibrated GSC mag to standard photometry. Observations:

C8 at 104x.

- 40 -

Zone 79

Scale model (in which the Sun is the size of a baseball): Diameter: A = 23.7 inches. Separation: AB = 12.3 miles.

Distance (LY): 272 Total luminosity (Suns): 5.6 Espin 1275 Rating: 5 E ADS 15247; SAO 51208 Position: 2142+4616 Magnitude Separation PA Year Spectra Colors A 8.47 — — — K0 W B 11.02 66.5 4 1913 ? Notes:

1 measurement. B has two 13.0m comes.

Observations:

C8 at 104x. Faint but rich field. Scale model (in which the Sun is the size of a baseball): Diameter: A = 25.0 inches. Separation: AB = 32.0 miles.


Moderate

Espin 100 Rating: 4 M ADS 15022 Position: 2129+4512 Magnitude Separation PA Year Spectra Colors A 9.78 — — — W B 10.50 4.3 + 157 = 1997 W C 12.20 29.9 339 1912 W?

- 41 -

Zone 79

Notes: AB 1901: 3.8 @ 157. 11 measurements. AC 1 measurement.

Observations:

C11 at 115x. This trio is the second star from the E end of a four-star chain. Deep Sky Objects

Easy

NGC 7082 Rating: 5 E Other Names: H VII 52 Astronomical League Program: Herschel II Club Position: 2129+4705 Type : Oc Class: IV 2p Magnitude : 7.2 Dimensions: 25' Cluster population: 8 Notes:

It is 171 million years old. This cluster lies 28,000 light years from the galactic center and 220 light years below

the galactic plane. The brightest star is 9.9m.

Observations:

C8 at 65x. Poor, not much denser than the field. C11 at 115x. Large and bright with a large range in magnitudes. Two bright W stars

dominate it and I counted 58 stars. Using a 13-inch Newtonian, Steve Coe draws atten-tion to a "dark lane [that] branches off from the north side." Model (where the Sun is a baseball):

Its diameter would be 10.770 miles and its stars 2,740 miles apart


- 42 -

Zone 79

NGC 7062 Rating: 3 M Other Names: Collinder 434, H VII 51 Astronomical League Program: Herschel 400 Club Position: 2123+4623 Type : Oc Class: II 2m Magnitude : 10.0 Dimensions: 6' Cluster population: 30 Notes:

It is 292 million years old. Its earliest stellar type is A1, and 85 stars are known to be members. The brightest star is 10.1m.

It lies 28,000 light years from the galactic center and 260 light years below the galactic plane.

Observations:

NGC 7062Open cluster (II 2 m; 30 stars)Observed with C11 on 9/15/03

Magnification: 140x

C8 at 206x. Nebulous at low power, better at high powers. It is compact and has a NW-SE axis. It is framed by a large obtuse triangle of 10m stars. It does not stand out well in the field.

C11 at 115x. It is a small, scintillating group of 10m and fainter stars with a rich and grainy look. At 193x, very faint stars are framed inside a 10m-11m diamond. Model (where the Sun is a baseball):

Its diameter would be 3,480 miles. The stars would be 560 miles apart Distance (LY): 4,820 Luminosity (suns): 182

- 43 -

Zone 79

NGC 7071 Rating: 3 M Position: 2126+4749 Type : Oc Magnitude : 12.0 Dimensions: 4' Notes:

It may be the same object as NGC 7067. Observations:

C8 at 65x. It forms a nebulous and narrow isosceles triangle.

NGC 7071Open cluster

Observed with C11 on 9/15/03Magnification: 140x

- 44 -

Zone 79

Zone 79, Map 7

Double Stars

Easy Espin 35 Rating: 4 E RU Cyg; ADS 15220; HD 206483; SAO 33654 Position: 2141+5419 Magnitude Separation PA Year Spectra Colors A 8.52 — — — M8e rO B 12.40 10.5 - 220 - 1996 ? C 11.08 21.3 + 29 + 1996 W Notes:

AB 1899: 11.1 @ 223. 4 measurements. AC 1899: 18.6 @ 28. 4 measurements. A is a semi-regular variable.

Observations:

C11 at 115x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 106 inches. Separation: AB = 13.3 miles; AC = 26.9 miles.


- 45 -

Zone 79

Hipparcos 3098 Rating: 4 E HD 207131; SAO 33723 Position: 2145+5431 Magnitude Separation PA Year Spectra Colors A 8.88 — — — G W B 11.56 19.8 + 61 - 1991 ? Notes:


C11 at 115x. This system is the N vertex of a narrow 10m diamond asterism. Scale model (in which the Sun is the size of a baseball): Diameter: A = 20.4 inches. Separation: AB = 21.6 miles.

Distance (LY): 700 Total luminosity (Suns): 12 h3062 Rating: 5 E HD 207729; SAO 33786 Position: 2149+5349 Magnitude Separation PA Year Spectra Colors A 8.33 — — — K0 Y B 11.05 21.3 125 1904 ? Notes:

1 measurement. Hipparcos/Tycho mission data show different distances for these stars (435 and 66

light years); they may be optical. Observations:

C8 at 104x. Note a small arc of three 9m stars, 2 min long, 6 min SE.

- 46 -

Zone 79

Moderate Espin 1011 Rating: 4 M ADS 15299; HD 235605; SAO 33721 Position: 2145+5254 Magnitude Separation PA Year Spectra Colors A 8.90 — — — G0 W B 11.30 7.5 219 1910 W? Notes:

1 measurement. Observations:

C8 at 104x. Very rich field. Scale model (in which the Sun is the size of a baseball): Diameter: A = 17.8 inches. Separation: AB = 20.1 miles.


Difficult Holden 50 Rating: 4 D ADS 15395; HD 207975 Position: 2151+5418 Magnitude Separation PA Year Spectra Colors A 9.02 — — — A5 W B 11.04 1.7 = 173 = 1991 W C 13.60 7.8 + 341 + 1925 ? Notes:


Observations:

C11 at 634x.

- 47 -

Zone 79

OS 456 Rating: 4 D ADS 15460; HD 208546 Position: 2155+5231 Magnitude Separation PA Year Spectra Colors A 7.76 — — — F2 Y B 9.04 1.6 + 37 + 1998 Y C 10.96 27.9 - 290 + 1991 W D 10.64 25.1 - 186 = 1991 ? E 12.23 54.8 19 No Notes:

AB 1847: 1.3 @ 28. 54 measurements. AC 1881: 36.1 @ 283. 7 measurements. AD 1881: 25.2 @ 186. 7 measurements. AE 1987: 54.8 @ 19. 1 measurement. AB-F (12.49m) 1987: 57.8 @ 104. 1 measurement. AB-G (9.38m) 1987: 111.7 @ 107. 1 measurement. AB-H (13.72m) 1987: 59.7 @ 184. 1 measurement. AB-I (13.57m) 1987: 101.4 @ 256. 1 measurement. AB-J (13.67m) 1987: 80.5 @ 46. 1 measurement. AB-K (14.30m) 1987: 74. 2 @ 116. 1 measurement. AB-L (13.90m) 1987: 76.1 @ 119. 1 measurement.

Observations:

C8 at 280x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 11.5 inches. Separation: AB = 2.07 miles; AC = 36.1 miles; AD = 32.5 miles; AE = 70.9 miles.


- 48 -

Zone 79

Deep Sky Objects

Moderate NGC 7128 Rating: 3 M Other Names: Collinder 440, H VII 40 Astronomical League Program: Herschel 400 Club Position: 2144+5343 Type : Oc Class: I 3m Magnitude : 9.7 Dimensions: 3.1' Cluster population: 35 Notes:

It is 18 million years old. The earliest star types are B2, and 71 members are known. The brightest star is 11.5m.

It lies 29,600 light years

from the galactic center and just above its plane.

NGC 7128Open cluster (I 3 m; 35 stars)Observed with C11 on 9/15/03

Magnification: 140x

Observations:

C8 at 206x. Nebulous, with orange SAO 33681 (7.8m) at the WNW end. Note the pentagon pattern.

C11 at 193x. Small and oval shaped, it is a poor object. I counted 11 stars. Model (where the Sun is a baseball):

Its diameter would be 2,470 miles and its stars 374 miles apart. Distance (LY): 7,520 Luminosity (suns): 580

- 49 -

Zone 79

NGC 7127 Rating: 5 M Position: 2144+5437 Type : Oc Class: IV 1p Magnitude : 10.0 Dimensions: 2.8' Cluster population: 12 Notes:

This cluster lies 28,600 light years from the galactic center and 80 light years above the galactic plane. Observations:

C8 at 65x. Sparse and poor, its best view is under medium powers. A 9m star dominates the center. Model (where the Sun is a baseball):

Its diameter would be 1,130 miles, with its stars 246 miles apart.

Distance (LY): 4,300 Luminosity (suns): 140 NGC 7175 Rating: 5 M Position: 2158+5442 Type : Oc Magnitude : 11.0 Dimensions: 8' Cluster population: 11 Notes:

Probably an asterism. Observations:

C8 at 65x. It is triangular in shape. Rich field.

- 50 -

Zone 79

Zone 79, Map 8

Reference Star Pi 2 Cyg (81 Cyg; HD 207330; SAO 51293) Position: 2147+4918 Mag : 4.23 Spectrum : B3 III Color : bW Assumed distance: 1,160 light years Assumed luminosity (suns): 2,260 Notes: This star is a spectroscopic binary (72.0162 day period) and a member of the Cyg OB7 Association.

Double Stars

Easy STF 2832 Rating: 3 E ADS 15355; HD 207661; SAO 33781 Position: 2149+5030 Magnitude Separation PA Year Spectra Colors A 7.74 — — — A0 IV yW B 8.31 13.5 + 213 - 1994 A0 pO C 9.40 45.9 319 1912 ? Notes:

AB 1832: 13.1 @ 214. 20 measurements. The stars show a similar, but small, proper motion.

AC 1 measurement. Observations:

C8 at 83x. It sits inside a triangle of 10m stars. Pretty! Webb saw them as W and yW.

- 51 -

Zone 79

Scale model (in which the Sun is the size of a baseball): Diameter: A = 11.7 inches; B = 6.24 inches. Separation: AB = 13.5 miles; AC = 45.8 miles.

Distance (LY): 640 Total luminosity (Suns): 51 Argelander 43 Rating: 4 E HD 207020; SAO 51250 Position: 2145+4934 Magnitude Separation PA Year Spectra Colors A 8.64 — — — A0 W B 9.08 28.7 + 19 + 1991 A2 W Notes:

1894: 27.2 @ 16. 9 measurements. The stars have different proper motions and Hipparcos gives different distances (1,000 and 2,030 light years).

B has a 14.2m companion at 6.7 @ 88 (1904). Observations:

C8 at 104x. Ball 56 Rating: 5 E Position: 2155+5030 Magnitude Separation PA Year Spectra Colors A 9.23 — — — R R! B 11.83 84 = 257 - 1991 W? Notes:

1876: 84 @ 258. 4 measurements. Observations:

C11 at 115x. Good, rich color in the primary.

- 52 -

Zone 79

Moderate Bur 374 Rating: 4 M ADS 15263; HD 206844; SAO 33687 Position: 2143+5100 Magnitude Separation PA Year Spectra Colors A 8.22 — — — G5+A2 Y B 9.75 1.8 = 137 - 1991 yO Notes:


C11 at 339x. Very rich field!

Distance (LY): 5,820 Total luminosity (Suns): 1,700

Difficult Hussey 693 Rating: 4 D ADS 15274; HD 235599; SAO 33695 Position: 2144+5034 Magnitude Separation PA Year Spectra Colors A 9.23 — — — F8 W B 9.96 1.1 = 232 + 1995 W Notes:


C11 at 634x. Nice chevron asterism lies 15 min SE.

- 53 -

Zone 79

Deep Sky Objects

Difficult PK 93+2.1 Rating: 4 D Other Names: M1-79 Position: 2137+4856 Type : Pn Class: 4 Magnitude : 13.2 Dimensions: 38'' x 27'' Notes:

The central star is 14.4m. Observations:

C8 at 104x. It is very faint and was only detected with averted vision and tube movement.

- 54 -

Zone 79

Zone 79, Map 9

Double Stars

Moderate STF 2846 Rating: 5 M ADS 15442; HD 208395; SAO 51429 Position: 2155+4547 Magnitude Separation PA Year Spectra Colors A 8.28 — — — A0 W B 10.20 3.4 + 267 + 1962 W C 11.00 33.1 +! 156 + 1991 dB Notes:


Observations:

C8 at 104x. Deep Sky Objects

Difficult

IC 5146 Rating: 5 D Other Names: Cocoon Nebula; Collinder 470 Astronomical League Program: Caldwell Club Position: 2153+4716 Type : Oc Class: IV 2pn Magnitude : 8.3 Dimensions: 12' x 10' Cluster population: 20

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Zone 79

Notes: It is 230 million years old. The brightest star is 9.6m. It is 11.3 light years in diameter.

Observations:

C8 at 65x. The cluster that lights it is very faint, as is the nebula. It is smooth and very difficult. Model (where the Sun is a baseball):

Its diameter would be 3,650 mi, with its stars 670 mi apart.


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Zone 79

Zone 79 Mini-Catalog Double Stars Designation Position Rating Map Component Mag Separation PA

Espin 825 2140+4908 3D 5

A B C

7.1411.70

9.53

— 9.6

57.3 +

— 253

57.3 +

OS 425 2100+4840 4D 2

A B C D

CD

7.3013.5610.7710.80

— 1.4 -

14.9 +

4.1 -

— 104 - 14.9 +

133 -

Bur 159 2111+4742 4D 3

A B C

6.469.147.35

— 1.3 =

135.7 +

— 313 -

135.7 +

Holden 44 2124+5031 4D 5 A B

8.0910.96

— 2.3 -

— 261 -

Hussey 693 2144+5034 4D 8 A B

9.239.96

— 1.1 =

— 232 +

Holden 50 2151+5418 4D 7

A B C

9.0211.0413.60

— 1.7 = 7.8 +

— 173 = 7.8 +

OS 456 2155+5231 4D 7

A B C D E

7.769.04

10.9610.6412.23

— 1.6 + 27.9 - 25.1 - 54.8

— 37 +

27.9 - 25.1 -

19

Espin 823 2126+4917 5D 5 A B

7.9712.50

— 9.3

— 278

Bur 68 2100+5013 2E 2 A B

8.609.01

— 1.9 =

— 150 -

STF 2789 2120+5258 2E 4

A B C

7.717.87

11.80

— 6.4 + 126.6

— 114 - 126.6

South 786 2120+5303 2E 4 A B

6.949.16

— 47.0 -

— 300 -

59 Cyg 2100+4731 3E 3

A B C D

4.599.43

11.6211.20

— 20.7 + 26.6 -

70.3 +!!

— 353 + 26.6 -

70.3 +!!

Espin 2704 2104+5358 3E 1 A B

8.528.86

— 54.7 -

— 96 -

Espin 98 2119+5219 3E 4

A B C

7.3210.1010.13

— 26.1 + 29.8 -

— 310 - 29.8 -

Espin 2708 2122+5218 3E 4 A B

8.698.52

— 29.9 +

— 40 =

STF 2803 2130+5256 3E 4

A B C

7.259.48

11.00

— 26.0 + 84.9 +

— 285 - 84.9 +

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Zone 79

Designation Position Rating Map Component Mag Separation PA

A. G. 272 2132+4508 3E 6 A B

9.8410.02

— 4.1 =

— 183 =

Hipparcos 3070 2134+5045 3E 5

A B

8.708.76

— 5.4 =

— 348 +

h1671 2137+5050 3E 5 A B

9.5010.02

— 9.7 =

— 326 -

h1681 2140+4825 3E 5 A B

9.3810.09

— 7.1 +

— 289 -?

STF 2832 2149+5030 3E 8

A B C

7.748.319.40

— 13.5 + 45.9

— 213 - 45.9

h1606 2101+5432 4E 1 A B

8.5211.08

— 18.5 +

— 184 -

Bur 1138 2103+4551 4E 3

A B C

6.507.407.69

— 0.1 -

153.9 -

— 170 +

153.9 - Hipparcos 3001 2104+4631 4E 3

A B

9.3410.57

— 18.3 +

— 93 -

Espin 2705 2106+5308 4E 1 A B

9.4810.00

— 8.7 -

— 15 -!

Espin 818 2108+4851 4E 2 A B

7.7412.12

— 58.3 -

— 64 +

Argelander 42 2109+4815 4E 2 A B

8.589.44

— 22.2 -

— 59 +

OSS 215 2110+4741 4E 3 A B

6.467.35

— 134

— 189

Bur 160 2112+4542 4E 3 A B

7.8311.78

— 57.4 +

— 155 +

h1629 2115+4637 4E 3 A B

9.7410.13

— 12.5 -

— 71 -

Bur 839 2120+4921 4E 5

A B C

8.1111.8010.06

— 15.3 + 27.2 +

— 205 + 27.2 +

Espin 820 2121+4923 4E 5 A B

9.2211.11

— 35.2 +

— 60 =

h1645 2125+5015 4E 5 A B

8.8410.72

— 8.2 +

— 38 -

STF 2800 2129+4952 4E 5 A B

9.0910.12

— 9.1 =

— 254 -

Espin 1172 2134+4725 4E 6

A B C

10.9810.4011.60

— 6.5 -

16.4 +

— 105 - 16.4 +

Espin 102 2138+4829 4E 5 A B

7.1810.59

— 11.5 -

— 36 -

Espin 35 2141+5419 4E 7

A B C

8.5212.4011.08

— 10.5 - 21.3 +

— 220 - 21.3 +

Argelander 43 2145+4934 4E 8 A B

8.649.08

— 28.7 +

— 19 +

Hipparcos 3098 2145+5431 4E 7

A B

8.8811.56

— 19.8 +

— 61 -

Bur 680 2105+5340 5E 1

A B C

8.239.44

11.15

— 0.5 = 21.5 -

— 290 +! 21.5 -

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Zone 79

Designation Position Rating Map Component Mag Separation PA

h1631 2115+5117 5E 4 A B

6.9911.44

— 49.3 +

— 17 =

h1635 2118+4747 5E 3 A B

10.2312.49

— 15.5 -

— 0 =

Espin 1102 2125+4819 5E 5 A B

10.5312.30

— 46.7

— 195

Bur 369 2127+5245 5E 4

A B C

7.6013.5712.49

— 17.2 + 52.1 +

— 30 -

52.1 +

h1676 2140+4712 5E 6 A B

7.6410.59

— 28.9 -

— 135 =

Espin 1275 2142+4616 5E 6 A B

8.4711.02

— 66.5

— 4

h3062 2149+5349 5E 7 A B

8.3311.05

— 21.3

— 125

Ball 56 2155+5030 5E 8 A B

9.2311.83

— 84 =

— 257 -

STF 2757 2105+5224 3M 1 A B

7.599.16

— 1.9 =

— 265 -

Smart 128 2110+4624 4M 3 A B

8.4013.21

— 12.7

— 170

Espin 1004 2119+5039 4M 5 A B

9.1112.20

— 7.1

— 219

Espin 100 2129+4512 4M 6

A B C

9.7810.5012.20

— 4.3 + 29.9

— 157 = 29.9

Bur 370 2132+5245 4M 4 A B

8.779.44

— 3.4 -

— 324 -

Espin 34 2137+5032 4M 5

A B C

8.369.209.36

— 2.8 + 39.2 -

— 132 - 39.2 -

Bur 374 2143+5100 4M 8 A B

8.229.75

— 1.8 =

— 137 -

Espin 1011 2145+5254 4M 7 A B

8.9011.30

— 7.5

— 219

Bur 158 2106+4748 5M 3 A B

7.4313.48

— 11.1 +

— 310 -

Espin 139 2121+5323 5M 4 A B

10.0711.60

— 5.1 -

— 355 +

Espin 1006 2124+5227 5M 4 A B

8.1111.89

— 7.9 -

— 48 -

h1644 2125+4801 5M 5

A B C

9.3511.1112.30

— 24.5 + 36.0

— 119 + 36.0

Espin 2710 2125+4919 5M 5 A B

6.5712.60

— 20.3 +

— 164 +

h1669 2136+5030 5M 5 A B

7.1611.64

— 15.6 +

— 240 +

Holden 47 2139+4958 5M 5 A B

8.0013.89

— 6.7 +

— 225 -

STF 2846 2155+4547 5M 9

A B C

8.2810.2011.00

— 3.4 +

33.1 +!

— 267 + 33.1 +!

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Zone 79

Deep Sky Objects

Specifications

Object Position Rating Map

Type

Mag Surface

Br Population NGC 7086 2131+5135 2E 5 Oc (II 2m) 9.4 50 NGC 7031 2107+5050 4E 2 Oc (III 2m) 9.1 50 NGC 7092 2132+4826 4E 5 Oc (III 2m) 5.2 28 Basel 12 2111+4614 5E 3 OC 9.0 NGC 7082 2129+4705 5E 6 Oc (IV 2p) 7.2 8 NGC 7008 2101+5433 3M 1 Pn (3) 12.0 NGC 7062 2123+4623 3M 6 Oc (II 2m) 10.0 30 NGC 7071 2126+4749 3M 6 Oc 12.0 NGC 7128 2144+5343 3M 7 Oc (I 3m) 9.7 35 NGC 7039 2111+4539 4M 3 Oc (IV 2m) 7.6 50 NGC 7048 2114+4616 4M 3 Pn (3b) 11.0 NGC 7067 2124+4801 4M 5 Oc (II 1p) 9.7 20 IC 1369 2112+4744 5M 3 Oc (I 1m) 6.8 40 NGC 7127 2144+5437 5M 7 Oc (IV 1p) 10.0 12 NGC 7175 2158+5442 5M 7 Oc 11.0 11 NGC 7026 2106+4751 3D 3 Pn (3a) 12.0 PK 93 +2.1 2137+4856 4D 8 Pn (4) 13.2 IC 5146 2153+4716 5D 9 Oc (IV 2pn) 8.3 20

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