DEEP SKY OBSERVING
by Mark Wagner
July 2007 third quarter to new moon observing list. Primary targets are generally easy. Secondary targets range from more difficult (in bold) to very difficult 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 the east at astronomical dark. | ||||||
Primary Target |
Secondary Target
|
Type
|
Size
|
Mag.
|
R.A.
|
Dec.
|
|
N6824 |
OC |
1.9' x 1.5' |
13 |
19 43 40 |
56 06 34 |
|
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NGC
6826 |
|
PN |
38.0" |
9.8 |
19 44 48 |
50 31 31 |
|
|
Blinking
Planetary. Nice double, dim galaxies nearby. |
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|
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|
Abell
50 |
PN |
36" x 30" |
15 |
18 59 20 |
48 27 53 |
|
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|
Abell
61 |
PN |
3.2' |
14.4 |
19 19 10 |
46 14 51 |
|
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|
NGC
6866 |
OC |
10.0' |
7.6 |
23 03 55 |
44 09 36 |
|
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|
NGC
6910 |
OC |
7.0' |
7.4 |
20 23 06 |
40 47 00 |
|
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|
Abell
69 |
PN |
25" |
20.1 |
20 19 58 |
38 23 59 |
|
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N6888 |
|
BN |
18.0' x 8.0' |
|
20 12 01 |
38 23 00 |
|
|
Crescent
Nebula - dark sky and OIII filter |
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|
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N6857 |
|
BN |
38.0" |
11.4 |
20 01 47 |
33 31 32 |
|
|
Small
emission nebula may be mistaken for PN |
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|
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|
N6894 |
PN |
60.0" |
14.4 |
20 16 24 |
30 33 51 |
|
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M56 |
|
GC |
8.8' |
8.4 |
19 16 35 |
30 11 05 |
|
|
Poorly
concentrated for Messier globular |
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|
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M57 |
|
PN |
1.8'x1.4' |
9.7 |
18 53 35 |
33 01 44 |
|
|
Ring
Nebula - filters will "brighten" object. |
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|
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|
NGC
6882 |
OC |
18.0' |
8.1 |
20 12 00 |
26 29 00 |
|
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|
Abell
57 |
PN |
37.0" |
17.5 |
19 17 05 |
25 37 33 |
|
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|
N6800 |
OC |
5.0' |
|
19 26 59 |
25 05 03 |
|
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|
NGC
6823 |
OC |
12.0' |
7.1 |
19 43 12 |
23 18 00 |
|
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|
NGC
6830 |
OC |
12.0' |
7.9 |
19 51 00 |
23 03 50 |
|
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M27 |
|
PN |
6.7' |
7.6 |
19 59 36 |
22 43 13 |
|
|
Easily
visibible without filters, filters enhance structure |
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|
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|
Abell
68 |
PN |
38" |
16.6 |
20 00 10 |
21 42 54 |
|
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NGC
6905 |
|
PN |
72.0" x 37.0" |
11.9 |
20 22 23 |
20 06 16 |
|
|
Blue
Flash. Bright bluish unevenly illuminated
disk. |
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|
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M71 |
|
GC |
7.2' |
8.4 |
19 53 46 |
18 46 42 |
|
|
Bright,
rich, loose globular can be mistaken for OC |
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|
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|
Abell
63 |
PN |
40" x 27" |
17.1 |
19 42 10 |
17 05 11 |
|
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|
NGC
6802 |
OC |
5.0' |
8.8 |
19 30 35 |
20 15 47 |
|
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|
N6793 |
OC |
6.0' |
|
19 23 14 |
22 08 28 |
|
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|
Abell
54 |
PN |
63.0" |
17.1 |
19 08 39 |
22 58 59 |
|
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|
Abell
59 |
PN |
86.0" |
17.2 |
19 18 40 |
19 34 26 |
|
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|
Abell
52 |
PN |
37.0" |
16.5 |
19 04 32 |
17 57 08 |
|
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|
Abell
62 |
PN |
2.6' |
14.8 |
19 33 18 |
10 37 04 |
|
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|
N6804 |
PN |
35.0" |
12.2 |
19 31 35 |
09 13 31 |
|
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NGC
6781 |
|
PN |
1.8' |
11.8 |
19 18 28 |
06 32 15 |
|
|
Bright,
circular, annular - enhanced by UHC filter. |
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|
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|
Abell
53 |
PN |
31.0" |
16.9 |
19 06 46 |
06 23 50 |
|
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|
NGC
6756 |
OC |
4.0' |
10.6 |
19 08 43 |
04 42 19 |
|
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NGC
6755 |
|
OC |
14.0' |
7.5 |
19 07 48 |
04 14 00 |
|
|
This
cluster stands out well from the Milky Way. |
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|
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|
Abell
56 |
PN |
3.3' x 2.7' |
15.5 |
19 13 06 |
02 52 49 |
|
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|
Abell
58 |
PN |
40.0" |
18.8 |
19 18 20 |
01 46 53 |
|
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|
Abell
67 |
PN |
67" |
16 |
19 58 27 |
03 03 00 |
|
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|
Abell
55 |
PN |
50.0" |
15.4 |
19 10 25 |
-02 20 25 |
|
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|
N6772 |
PN |
84.0" |
14.2 |
19 14 36 |
-02 42 27 |
|
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M11 |
|
OC |
13.0' |
5.3 |
18 51 06 |
-06 16 00 |
|
|
Beautiful
rich cluster - many stars of even magnitude. |
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|
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|
NGC
6712 |
GC |
9.8' |
13.3 |
18 53 04 |
-08 42 22 |
|
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M26 |
|
OC |
14.0' |
8 |
18 45 12 |
-09 23 00 |
|
|
Compact,
distinct cluster. |
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|
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|
N6814 |
OC |
3.0' x 2.7' |
13.3 |
19 42 40 |
-10 19 25 |
|
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|
Abell
60 |
PN |
76" x 65" |
15.7 |
19 19 17 |
-12 14 42 |
|
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NGC
6818 |
|
PN |
48.0" |
9.9 |
19 43 57 |
-14 09 10 |
|
|
Little
Gem - blue, OIII kills color, enhances annulatiry. |
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|
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|
Abell
51 |
PN |
62.0" |
15.4 |
19 01 01 |
-18 12 14 |
|
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M25 |
|
OC |
32.0' |
4.6 |
18 31 45 |
-19 07 00 |
|
|
Two
E/W streams divided by starless lane. |
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|
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M22 |
|
GC |
32' |
5.2 |
18 36 24 |
-23 54 12 |
|
|
Gorgeous
large loose globular. Rich MW star
field. |
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|
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|
N6717 |
GC |
3.9' |
8.4 |
18 55 05 |
-22 42 06 |
|
|
|
Palomar
9 |
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|
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|
Abell
66 |
PN |
4.5' |
14.9 |
19 57 31 |
-21 36 37 |
|
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|
Abell
65 |
PN |
2.3' |
15.2 |
19 46 34 |
-23 08 14 |
|
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|
N6907 |
OC |
3.3' x 2.9' |
11.9 |
20 25 06 |
-24 48 30 |
|
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|
HCG
86 |
GXCL |
|
13.7 |
19 52 00 |
-30 48 00 |
|
|
A component
not shown in Megastar! Four galaxies. |
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|
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M55 |
|
GC |
19.0' |
6.3 |
19 39 59 |
-30 57 44 |
|
|
Fine,
bright, well resolved globular. |
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|
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M54 |
|
GC |
12.0' |
7.7 |
18 55 03 |
-30 28 42 |
|
|
Bright,
but unresolved! |
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|
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M70 |
|
GC |
8.0' |
7.8 |
18 43 12 |
-32 17 31 |
|
|
Small
globular for Messier, core is poorly concentrated. |
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|
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M69 |
|
GC |
9.8' |
7.7 |
18 31 23 |
-32 20 53 |
|
|
Well
concentrated, its core is nearly a stellar point. |
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|
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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.
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