DEEP SKY OBSERVING
by Mark Wagner

August 2007 third quarter to new moon observing list. Primary targets are generally easy and in bold large font.. Secondary targets range from more difficult (bold) to very difficult (regular font) and are near the primary targets as you star hop. The list begins in the north and moves southward. Objects are within roughly a two hour section of right ascension that is at a comfortable elevation in the east at astronomical dark.

Object

Const.

Type

Size

Mag

R.A.

Dec.

N7023

Cep.

BN

14.0'

 

21 01 36

68 10 00

 

With an Ultrablock filter, this appeared as a star with a glowing circle around it.

NGC 7142

Cep.

OC

4.3'

9.3

21 45 12

66 46 23

 

A faint grouping of 50+ starts approx 15'x15'

N7129

Cep.

OC/BN

8.0'

11.5

21 42 00

66 05 00

 

A faint grouping of 50+ starts approx 15'x15'

N7139

Cep.

PN

77.0"

13.3

21 46 08

63 47 31

 

A small cluster of stars with a diffuse glow around 3 of them

Abell 75

Cep.

PN

56"

17

21 26 23

62 53 33

 

Using an OIII filter, slightly elongated, moderately large

NGC 6939

Cep.

OC

7.0'

7.8

20 31 31

60 39 14

 

Nice target and in same wide field view as NGC 6946

NGC 6946

Cep.

GX

11.6'x9.8'

9.6

20 34 52

60 09 15

 

Nice large galaxy same low power field of view as NGC 6939

Abell 73

Cep.

PN

73.0"

17.4

20 56 26

57 26 00

 

Did not find an observation of this object.

Abell 77

Cep.

PN

76"x49"

16.4

21 32 10

55 52 42

 

Did not find an observation of this object.

NGC 7008

Cyg

PN

86"

13.3

21 00 33

54 32 32

 

Excellent showpiece, with a surface brightness of 11.8

NGC 7128

Cyg

OC

3.1'

9.7

21 44 00

53 43 00

 

Small cluster, not obvious.

NGC 7086

Cyg

OC

9.0'

8.4

21 30 30

51 35 00

 

Stands out well against the Milky Way.

N7031

Cyg

OC

15.0'

9.1

21 06 52

50 51 00

 

About two dozen stars mag 11-15 in a 6' diameter.

M39

Cyg

OC

31.0'

4.6

21 32 12

48 27 00

 

70x is a great magnification for this bright but sparse large open cluster. About 20 bright stars comprise the group.

N7067

Cyg

OC

3.0'

9.7

21 24 12

48 01 00

 

Tiny open cluster only a few degrees from M39.

N6991

Cyg

OC

25.0'

 

20 54 54

47 25 00

 

Just a hazy area with many dim stars

Abell 71

Cyg

PN

2.6'

15.2

20 32 23

47 20 56

 

Very faint "haze" barely discernable from the background sky

N7082

Cyg

OC

24.0'

7.2

21 29 24

47 05 00

 

Fairly bright, large, 15' diameter, scattered, no distinct borders, in very rich field.

NGC 7062

Cyg

OC

6.0'

8.3

21 23 28

46 23 03

 

About 30 stars mag 10 and fainter in a 5' diameter at 220x.

N6997

Cyg

OC

8.0'

10

20 56 30

44 39 00

 

About 50 stars in a 10' diameter.  Located in the eastern U.S. portion of the North American Nebula.

NGC 7000

Cyg

BN

120.0'

 

20 58 00

44 20 00

 

100x and OIII filter appears very bright, extremely large

NGC 6866

Cyg

OC

10.0'

7.6

20 03 55

44 09 36

 

About 100 stars in a 20'x10' region are visible at 100x.  Appears rich and very appealing.

NGC 7044

Cyg

OC

5.0'

12

21 13 09

42 29 44

 

Large, sparse cluster with no central concentration.

NGC 6910

Cyg

OC

7.0'

7.4

20 23 06

40 47 00

 

Two sets of stars perpendicular to each other, with a fifth bright member between them.

M29

Cyg

OC

6.0'

6.6

20 24 00

38 30 06

 

two equal length chains of three stars each, arced away from each other.

Abell 69

Cyg

PN

25"

20.9

20 19 58

38 23 59

 

Um, mag 21?  I don't think so!

N6888

Cyg

BN

18'x8'

 

20 12 01

38 23 00

 

appears as a huge, irregular cosmic egg sitting in a very rich Cygnus star field.  Use OIII filter.

N6857

Cyg

BN

38.0"

11.4

20 00 46

33 31 32

 

very bright, moderately large, about 1' diameter, irregular.

Abell 78

Cyg

PN

2.0'x1.7'

16

21 35 29

31 41 44

 

Fairly large glow with an OIII filter.

N6992

Cyg

SNR

80'x26'

 

20 57 00

31 30 00

 

Part of the Veil Nebula.  Use an OIII filter!

N6960

Cyg

SNR

60.0'x9.0'

 

20 45 54

30 43 00

 

More Veil Nebula, beautiful with OIIi or other narrowband filter.

N6894

Cyg

PN

60.0"

14.4

20 16 24

30 33 51

 

Small, brighter on western edge, extensions sw and ne.

NGC 6834

Cyg

OC

5.0'

7.8

19 52 12

29 25 00

 

Small, compact open cluster, dim haze. There are bright stars in the center of this cluster.

NGC 6940

Vul

OC

31.0'

6.3

20 34 36

28 19 00

 

Extreamly large, bright cluster. Numerous stars inside.

NGC 6882

Vul

OC

18.0'

8.1

20 12 00

26 29 00

 

Likely duplicate identification is NGC 6885.  about 80 stars mag 6-13 in 15' triangular group, bright.

Abell 74

Vul

PN

13.8'

12.2

21 16 52

24 08 52

 

mag 15 galaxy (CGCG 471-2) which shines through the dim disc of the planetary.

NGC 6830

Vul

OC

12.0'

7.9

19 51 00

23 03 50

 

a bright little tight OC just NW of M27

M27

Vul

PN

6.7'

7.6

19 59 36

22 43 13

 

Great planetary, try different filters to bring out nebulosity.

Abell 68

Vul

PN

38"

16.6

20 00 10

21 42 54

 

No observations found.

NGC 6905

Del

PN

72"x37"

11.9

20 22 23

20 06 16

 

Very nice small planetary if seeing will allow high magnification.

M71

Sge

GC

7.2'

8.4

19 53 46

18 46 42

 

Nice small globular, almost open in nature.  Panning between M71 and H-20 is a study in contrasting clusters.

NGC 7006

Del

GC

3.6'

10.6

21 01 29

16 11 15

 

Pretty as well as compact.  Over 100K light years distant.

N7042

Peg

GX

2.0'x1.7'

12.8

21 13 45

13 34 31

 

fairly faint, moderately large, round, bright core.

Abell 72

Del

PN

2.0'x1.8'

14.6

20 50 02

13 33 29

 

easily picked up at 64x and OIII filter as a fairly faint, moderately large, round glow.

M15

Peg

GC

18.0'

6.3

21 29 58

12 10 01

 

Great, highly condensed..  Steady skies?  Try Pease 1!

NGC 6934

Del

GC

7.1'

13.8

20 34 11

07 24 15

 

partially resolved into a couple of dozen stars,  particularly on the south side.

Abell 67

Aql

PN

67"

16

19 58 27

03 03 00

 

an O-III shows this Pn to be a moderately faint ring. Central hole is easy.

M2

Aqr

GC

16.0'

6.6

21 33 27

-00 49 12

 

Kind of a forgotten big globular.  At mag 6.6 a good naked-eye test.

HCG 89

Aqr

GXCL

0.9'x0.5'

15.4

21 20 01

-03 55 19

 

Four components, all under mag 17.  Brightest is mag 15.4.

HCG 88

Aqr

GXCL

2.0'x1.7'

14.1

20 52 35

-05 42 38

 

Nice chain of four "bright" galaxies (as Hicksons go!)

Abell 70

Aql

PN

42.0'

14.3

20 31 33

-07 05 18

 

Looks like a faint "Ring Nebula" - has a galaxy shining through ring.

NGC 7009

Aqr

PN

70.0'

8.3

21 04 10

-11 21 49

 

Saturn Nebula.  Nice color, pump up the power high as possible.

M72

Aqr

GC

6.6'

9.2

20 53 27

-12 32 13

 

at 380x, the halo is very irregular and the globular has a very  uneven surface brightness

M73

Aqr

Astrism

2.8'

8.9

20 58 55

-12 38 03

 

A group of 3 stars mistaken to have nebulosity.

HCG 87

Cap

GXCL

1.5'x0.3'

15.3

20 48 14

-19 50 57

 

3 of 4 galaxies visible - ranging 15.4 to 16.1.

Abell 66

Sgr

PN

4.5'

14.9

19 57 31

-21 36 37

 

Required averted vision to see a very large, round glow nearly 3' diameter.  Use OIII

M75

Sgr

GC

6.8'

8.6

20 06 04

-21 55 17

 

bright, moderately large, 3' diameter, round, very bright striking core 30" diameter, very mottled.

M30

Cap

GC

12.0'

6.9

21 40 22

-23 10 45

 

Very irregular appearance with strings of stars emanating from an irregular bright, partially resolved core.

N6907

Cap

GX

3.3'x2.9'

11.9

20 25 06

-24 48 30

 

Big and round, fairly diffuse, some concentration toward the core.

AGC 3744

Cap

GXCL

21 07 12

14.5

21 07 12

-25 28 00

 

7016, 7017 and 7018 within 3'. Much more challenging was 16th magnitude MCG -4-49-16 to the NE of NGC 7018.

 

Note: Source catalogs are Messier, Arp, Abell Planetary, Abell Galaxy Cluster (AGC), Hickson Compact Galaxy (HCG), Herschel 400-I, Herschel 400-II. Herschell 400-I are identified as NGCXXXX, Herschel 400-II as NXXXX.