Jump to content

  •  

* * * * -

Collinder Catalog of Open Star Clusters


Discuss this article in our forums

THE COLLINDER CATALOG OF OPEN STAR CLUSTERS

An Observer's Checklist


Edited by Thomas Watson





The Updated and Observer Friendly Rendition of
Collinder's Catalog of Open Star Clusters


In 2004 a puzzle presented by a star chart notation sent me off on what, for many months, seemed like the proverbial wild goose chase. Persistence and a good deal of luck, however, eventually led me to the solution to the puzzle, and to the creation of this observer's checklist.

Like many of you, I have a fondness for the Coat Hanger, a curious and well-named asterism. I first became aware of its existence while using a copy of Dickinson's Nightwatch as I reacquainted myself with the night sky. Not long afterward I picked up a copy of the 19th edition of the Norton's Star Atlas and Reference Handbook and found, where the Coat Hanger should be, the designation "Cr 399." What, I wondered, did the letters "Cr"stand for? In this age of instant access to all manner of information, I soon learned that the notation referred to a catalog of open star clusters created by a Swedish astronomy graduate student -“ Per Arne Collinder -“ for his 1931 doctoral dissertation. ("On Structural Properties of Open Clusters and Their Spatial Distribution.-) Web searches and conventional digging around in the library brought limited results. I came across a reference to the fact that Collinder had gone on to become, not an astronomer, but something of an authority on navigation. I also found that many studies of stars and star clusters (to this day) cite Collinder's dissertation as a reference. He may have become a mystery to amateur astronomers, but his work was obviously of use to someone. Nothing else about this admittedly minor character in the history of astronomy was forthcoming. No copies of Collinder's dissertation existed in the local university library, so I was unable to see the catalog, much less read the man's findings with regards to this class of deep sky objects. I'd come to a dead end, my curiosity far from satisfied.

I really hate when that happens.

Astronomy writer Nancy Thomas, in the winter 2005 issue of Amateur Astronomy magazine, published an essay on Collinder that rekindled my interest in his catalog. Like me, she had been sent on her quest, years ago, by the "Cr 399"notation for the Coat Hanger. However, she had done substantially better in her efforts to learn about Collinder, coming up with a photocopy of his catalog (reproduced by the US Naval Observatory directly from his dissertation) and an obituary that, when translated, provided a nutshell account of the man's life. (See "Per Collinder and His Catalog,"by Nancy Thomas; Amateur Astronomy #48, Winter 2005.) At the end of her essay, Ms. Thomas expressed the hope that amateur astronomers would take up the challenge of using Collinder's catalog as an observing list. This seemed a vain hope, without a copy of the catalog. I wrote Nancy a letter to congratulate her on her findings, express appreciation for publishing her results, and to say that I would be interested in taking up the challenge if I could trouble her for a copy of the catalog. This, she was most happy to do, and in a couple of weeks a photocopy of it arrived in my mailbox.

To say I was pleased by this turn of events would be an understatement. I studied the catalog and soon came to the realization that, in its original form, the catalog was of little use to the amateur observer. It contained out-dated coordinates, incorrect NGC and IC numbers (often through no fault of the author), and data that was just plain obscure from the perspective of the average backyard observer. The idea occurred to convert this document into a more streamlined form that might appeal to those who have an interest in both astronomy and history, and so I set to work updating the catalog in a spreadsheet. This turned into a larger task than I expected, especially when I set about finding correct NGC numbers for the objects. To accomplish this, and to provide modern coordinate information, I came to rely heavily on the Historically Corrected New General Catalogue Ver. 1.02 (available on line) and the book Star Clusters by Brent A. Archinal and Steven J. Hynes (Willmann-Bell). No observer of deep sky objects should remain unacquainted with these references.

As I was working my way through the process of making the conversion, a chance came my way, in the summer of 2006, to see Collinder's dissertation in its entirety. A spur of the moment search with Google Scholar, followed up by a call to the folks at the University of Arizona interlibrary loan program, put a copy of the seventy-five year old tome in my hands for a few weeks. It was an interesting read, written as it was in a more personable and human style than we see used in professional science journals and dissertations these days. Of greatest interest was the collection of notes that followed the catalog, in which Collinder discusses the individual objects he decided to include in his research. Holding that old dissertation in my hands, after trying for so long to find out anything at all about its author, was a very satisfying experience. The search had come full circle.

Although the majority of the open clusters used by Collinder for his research were objects discovered by other observers over the ages, a significant number of these objects were recognized for what they are for the first time by Collinder, himself. It is for this reason, of course, that the "Cr"designation that sent me on my quest remains on star charts today. The catalog as a whole is a catalog in its own right in that it is a compilation of data on a specific class of objects (open clusters) assembled to facilitate a study of the characteristics of those objects. But whatever use Collinder -“ and those who came after him -“ made of this catalog, we now have the option, thanks in large part to the detective work of Nancy Thomas, of using this large collection of objects as resource for our enjoyment of the night sky. I hope this version of it does indeed prove to be user friendly enough to guide you to many worthwhile encounters with the open star clusters of the Milky Way galaxy.


Using the Updated Collinder Catalog


As you observe these objects through the eyepiece it might be interesting to keep in mind that Collinder apparently never saw the majority of the clusters he listed directly with his own eyes. Much, if not most, of his work was done using photographic plates taken from a variety of observatories. Because he used this approach, and his selection process was not biased toward the Northern Hemisphere, a significant number of the clusters in his catalog are objects out of reach of northern observers. That seems fair enough, when you consider that a comparable number are invisible to observers in the south. The checklist has been left in the original order according to each object's Cr number, just as Collinder published it, with no attempt made to sort according to the prospective observer's latitude.

Most of the clusters in the Collinder Catalog are objects suited to telescopes of various sizes. Some require high magnification, others a low power wide field eyepiece. Some are best viewed with binoculars, or even with the naked eye. If nothing else, Collinder's catalog clearly illustrates that open star clusters represent a highly diverse set of deep sky objects.


The following is an explanation of the column headings of the checklist derived from Collinder's catalog.

Cr # The catalog number assigned by Collinder to each object included in his study.

NGC/Other Cat Provides connections to the more general resources from which Collinder derived his list of open clusters. Not all of these designations were included in Collinder's original catalog. They are added here to allow for easier cross referencing with modern resources. In a few cases Collinder got an NGC/IC number wrong, and where the erroneous number might be found in other references, this has been noted. Also, some of his designations, while correct in their time, are seldom used these days. A few of these, such as that for the Coat Hanger asterism (4-5 Vul)) have been retained as curiosities.

Con The constellation in which the object is found.

RA and DEC The celestial coordinates of the objects according to the Historically Corrected New General Catalogue (HCNGC) v1.02. The coordinates listed in Collinder's dissertation are from the early 1900s and are not reproduced in this checklist. (See original catalog.)

M (v/p) Estimates of the apparent magnitudes of these clusters, either visual (v) or photographic (p) taken from such sources as NSOG, the SEDS website, and Archinal & Hynes, and The Historically Corrected New General Catalogue (HCNGC) v.1.02. The magnitudes recorded by Collinder often do not agree with modern sources. (See original catalog.)

# Stars Estimates of the number of stars contained within star clusters, determined by the examination of photographic plates. Most of these counts are by Collinder. Where he did not provide a number one was substituted from other (usually more recent) sources, as indicated by a number in parenthesis. This segregation was done in order to help maintain some sense of what Collinder measured in his work, while still providing useful information to modern observers. Although these numbers can be useful for giving the observer some sense for the cluster's nature, always bear in mind that the number of stars seen will be strongly influenced by aperture and conditions.

AnS' Modern estimates of angular size taken from sources such as The Historically Corrected New General Catalogue (HCNGC) v.1.02 and The Night Sky Observer's Guide (NSOG) by Kepple and Sanner.

Class A classification system used to describe clusters by comparing them to typical and well known clusters as examples. Classifications of this sort from both Collinder and Lundmark (his doctoral advisor) are included in the original catalog, but only Collinder's assessment (which in the overwhelming majority of cases is the same as Lundmark's) are used for this list. This system of descriptive classification is included partly for the historical insight it provides into how these objects were seen by the researcher involved, but because they would seem to offer an aid to the identification of objects when they are found.

Notes ( n) Useful information that it is hoped provides some clarification of discrepancies between Collinder's sources and those currently in use.









Catalog and Checklist

Col #

NGC/Other Cat.

Con

RA

DEC

m ( v/p)

# Stars

AnS'

Class

n

1

103

Cas

00h 25m 17.4s

+61º 19' 19"

9.8v

(30)

5

Plei


2

129

Cas

00h 29m 54.1s

+60º 12' 35"

6.5v

20

21

Plei


3

133

Cas

00h 31m 16.9s

+63º 21' 10"

9.4v

20

7

Plei


4

136

Cas

00h 31m 30.7s

+61º 30' 34"

11.3p

(20)

1.2

Praes


5

146

Cas

00h 33m 03.9s

+63º 18' 33"

9.1v

20

6

Plei


6

188

Cep

00h 47m 29.7s

+85º 14' 29"

8.1v

(120)

13

Praes


7

225

Cas

00h 43m 32.3s

+61º 47' 25"

7.0v

18

12

Plei


8

IC1590

Cas

00h 52m 59.3s

+56º 37' 19"

7.4p

nl

25x30

Neb

1

9

366

Cas

01h 06m 25.9s

+62º 13' 44"

12p

(30)

3

Plei


10

381

Cas

01h 08m 14.9s

+61º 35' 00"

9.3v

38

6

Praes


11

436

Cas

01h 15m 57.7s

+58º 49' 02"

8.8v

25

5

Praes


12

457

Cas

01h 19m 32.6s

+58º 17' 27"

6.4v

40

13

Praes


13

559

Cas

01h 29m 29.1s

+63º 18' 30"

9.5v

35

4.4

Praes


14

581 (M103)

Cas

01h 33m 21.8s

+60º 39' 29"

7.4v

25

6

Praes


15

Tr.1

Cas

01h 35m 42.0s

+61º 17' 00"

8.1v

(20)

7.4

Praes


16

609

Cas

01h 36m 23.7s

+64º 32' 12"

11.0v

(100+)

3

Praes


17

637

Cas

01h 43m 03.1s

+64º 02' 12"

8.2v

11

3.5

Plei


18

654

Cas

01h 43m 59.4s

+61º 52' 58"

6.5v

30

5

Praes


19

659

Cas

01h 44m 23.0s

+60º 40' 09"

7.9v

15

5

Praes


20

663

Cas

01h 46m 16.0s

+61º 13' 06"

7.1v

60

16

Praes


21


Tri

01h 50m 12.0s

+27º 05' 00"

7.3v

15

7

Plei

2

22

744

Per

01h 58m 29.9s

+55º 28' 29"

7.9v

12

11

Plei


23

752

And

01h 57m 47.9s

+37º 51' 00"

5.7v

50

50

Plei


24

869

Per

02h 19m 03.8s

+57º 08' 06"

5.3v

250

29

Praes

3

25

884

Per

02h 22m 32.1s

+57º 08' 39"

6.1v

200

29

Praes

3

26

Mel 15 (IC1805)

Cas

02h 32m 42.0s

+61º 27' 00"

7.9v

25

22

Plei

4

27

956

And

02h 32m 30.9s

+44º 35' 37"

8.9p

20

7

Plei


28

957

Per

02h 33m 19.0s

+57º 34' 11"

7.6v

18

11

Plei


29

Tr.2

Per

02h 37m 18.0s

+55º 59' 00"

5.9v

18

20

Plei


30

1027

Cas

02h 42m 35.1s

+61º 35' 40"

6.7v

40

20

Neb


31

1039 (M34)

Per

02h 42m 07.4s

+42º 44' 46"

5.2v

60

35

Praes


32

IC1848

Cas

02h 51m 12.0s

+60º 26' 00"

6.5v

20

12

Plei

5

33

IC1848

Cas

02h 59m 18.0s

+60º 24' 00"

5.9p

100

39

Plei

5

34

IC1848

Cas

03h 00m 54.0s

+60º 25' 00"

6.8p

60

25

Plei

5

35

1193

Per

03h 05m 55.7s

+44º 22' 59"

12.6v

(40)

1.5

Plei


36

Tr.3

Cas

03h 11m 48.0s

+63° 15' 00"

7p

30

23

Plei


37

1220

Per

03h 11m 40.7s

+53º 20' 54"

11.8v

(15)

2

Plei


38

1245

Per

03h 14m 41.5s

+47º 14' 20"

8.4v

65

10

Praes


39

Mel 20 (PMC)

Per

03h 22m 00.0s

+49º 00' 00"

1.2v

60

185

Plei

6

40

1342

Per

03h 31m 40.1s

+37º 22' 28"

6.7v

30

14

Plei


41

IC348

Per

03h 44m 30.0s

+32º 17' 00"

7.3v

10

7

Neb

7

42

M45

Tau

03h 47m 00.0s

+24º 07' 00"

1.2v

100

110

Neb


43

1444

Per

03h 49m 22.9s

+52º 39' 44"

6.6v

7

4

μNorm


44

1496

Per

04h 04m 31.9s

+52º 39' 41"

9.6v

(10)

6

Plei


45

1502

Cam

04h 07m 49.3s

+62º 19' 54"

6.9v

15

7

μNorm


46

1513

Per

04h 09m 54.7s

+49º 31' 02"

8.4v

40

9

Praes


47

1528

Per

04h 15m 18.9s

+51º 12' 41"

6.4v

50

23

Praes


48

IC361

Cam

04h 19m 00.0s

+58º 18' 00"

11.7v

(60)

6

Praes


49

1545

Per

04h 20m 56.3s

+50º 15' 19"

6.2v

18

18

Plei


50

Mel 25 (TMC)

Tau

04h 27m 00.0s

+16º 00' 00"

0.5v

36

330

Plei

8

51

1582

Per

04h 32m 00.0s

+43º 50' 53"

7.0v

60

37

Plei


52

1605

Per

04h 34m 54.3s

+45º 16' 11"

10.7v

(40+)

5

Praes


53

1624

Per

04h 40m 36.5s

+50º 27' 42"

11.8v

(12)

5x5

Plei


54

1647

Tau

04h 45m 55.6s

+19º 06' 42"

6.4v

60

45

Praes


55

1662

Ori

04h 48m 28.9s

+10º 55' 49"

6.4v

14

20

Plei


56

1664

Aur

04h 51m 08.4s

+43º 40' 28"

7.6v

30

18

Praes


57

1746

Tau

05h 03m 50.2s

+23º 46' 04"

6.1v

70

42

Praes


58

1778

Aur

05h 08m 05.7s

+37º 01' 22"

7.7v

15

6

Plei


59

1807

Tau

05h 10m 41.1s

+16º 31' 52"

7.0v

18

17

Plei


60

1817

Tau

05h 12m 26.3s

+16º 41' 03"

7.7v

85

16

Praes


61

1857

Aur

05h 20m 05.5s

+39º 20' 37"

7.0v

40

5

Plei


62

nl

Aur

05h 22m 30.0s

+41º 00' 00"

4.2v

15

28

Plei


63

1893

Aur

05h 22m 45.1s

+33º 25' 13"

7.5v

30

11

Plei

9

64

1883

Aur

05h 25m 54.2s

+46º 29' 25"

12.0v

12

2.5

Plei


65

nl

Tau

05h 25m 05.0s

+15º 41' 59"

3.0v

30

220

Plei


66

1907

Aur

05h 28m 04.5s

+35º 19' 32"

8.2v

8

6

Praes


67

1912 (M38)

Aur

05h 28m 42.5s

+35º 51' 18"

6.4v

120

21

Praes


68

1931

Aur

05h 31m 25.8s

+34º 14' 42"

10.1v

(20)

4x4

Neb


69

Orion Cluster

Ori

05h 35m 28.8s

+09º 56' 28"

2.8v

25

70

Neb

10

70

Orion Belt

Ori

05h 35m 36.0s

-01º 05' 00"

0.6v

125

140

Neb

11

71

1960 (M36)

Aur

05h 36m 17.7s

+34º 08' 27

6.0v

60

12

Praes


72

1980

Ori

05h 35m 25.9s

-05º 54' 35"

2.5v

12

14x14

Neb


73

1981

Ori

05h 35m 09.6s

-04º 25' 30"

4.2v

13

25

Plei


74


Ori

05h 48m 30.0s

+07º 24' 00"

14.4p

12±

5

nl


75

2099 (M37)

Aur

05h 52m 18.3s

+32º 33' 11"

5.6v

250

23

Praes


76

2112

Ori

05h 53m 45.2s

+00º 24' 39"

9.1v

45

11

Praes


77

2129

Gem

06h 01m 06.5s

+23º 19' 20"

6.7v

20

6

Plei


78

2126

Aur

06h 02m 33.0s

+49º 51' 57"

10.2v

18

6

Plei


79

2141

Ori

06h 02m 55.1s

+10º 26' 47"

9.4v

(100)

10

Praes


80

Tr.4

Gem

06h 05m 00.0s

+24º 00' 00"

8.4p

15

6

Plei


81

2158

Gem

06h 07m 25.6s

+24º 05' 46"

8.6v

(100+)

5

Praes

12

82

2168 (M35)

Gem

06h 08m 55.9s

+24º 21' 28"

5.1v

175

28

Praes


83

2169

Ori

06h 08m 24.3s

+13º 57' 53"

5.9v

8

6

Plei


84

2175

Ori

06h 09m 39.6s

+20º 29' 15"

6.8v

16

40x30

μ Norm

13

85

2186

Ori

06h 12m 07.1s

+05º 27' 31"

8.7v

10

4

Praes


86

2192

Aur

06h 15m 17.4s

+39º 51' 19"

10.9v

(45)

5

Plei


87

2194

Ori

06h 13m 45.9s

+12º 48' 24"

8.5v

35

10

Praes


88

2204

Cma

06h 15m 32.2s

-18º 39' 57"

8.6v

65

12

Praes


89

9-12 Gem

Gem

06h 18m 00.0s

+23º 38' 00"

5.7

20

60

Plei


90

2215

Mon

06h 20m 49.2s

-07º 17' 02"

8.4v

22

11

Plei


91


Mon

06h 21m 42.0s

+02º 22' 00"

6.4p

20

17

Plei


92


Mon

06h 22m 54.0s

+05º 07' 00"

8.6v

30

11

Neb


93

2232

Mon

06h 27m 15.0s

-04º 50' 51"

4.2v

18

29

Plei


94

2236

Mon

06h 29m 39.7s

+06º 49' 50"

8.5v

18

6

Plei


95


Mon

06h 30m 30.0s

+09º 56' 00"

nl

10

27

Neb


96


Mon

06h 30m 18.0s

+02º 52' 00"

7.3v

12

7

Plei


97


Mon

06h 31m 18.0s

+05º 55' 00"

5.4p

9

21

Plei


98

2243

Cma

06h 29m 34.5s

-31º 16' 53"

9.4v

(100)

5

Praes


99

2244

Mon

06h 31m 55.6s

+04º 56' 35"

4.8v

18

24

Plei


100

2250

Mon

06h 33m 49.9s

-05º 05' 04"

8.9p

(10)

7

Plei


101

2251

Mon

06h 34m 38.5s

+08º 21' 59"

7.3v

20

10

Plei


102

2252

Mon

06h 34m 42.9s

+05º 21' 59"

7.7v

10±

20

Plei


103

2254

Mon

06h 35m 49.7s

+07º 40' 24"

9.1v

20

4

Plei


104


Mon

06h 36m 30.0s

+04º 49' 00"

9.6p

15

21

Chain


105

Tr.5

Mon

06h 37m 36.0s

+09º 26' 00"

10.9p

20

8

Plei


106


Mon

06h 37m 06.0s

+05º 57' 00"

4.6p

23

45

Plei


107


Mon

06h 37m 42.0s

+04º 44' 00"

5.1p

30

35

Plei


108

2259

Mon

06h 38m 21.4s

+10º 53' 01"

10.8v

(25)

4.5

Plei


109

2262

Mon

06h 39m 38.1s

+01º 08' 37"

11.3v

(35)

3.5

Plei

14

110


Mon

06h 38m 24.0s

+02º 01' 00"

10.5p

60

12

Praes


111


Mon

06h 38m 42.0s

+06º 54' 00"

7.0p

8

3.2

μNorm


112

2264

Mon

06h 40m 58.3s

+09º 53' 44"

4.1v

45

20

μ Norm


113

2266

Gem

06h 43m 19.2s

+26º 58' 10"

9.5v

50±

6

Praes


114

2269

Mon

06h 43m 17.1s

+04º 37' 28"

10.0v


4

Plei


115


Mon

06h 46m 30.0s

+01º 46' 00"

9.2p

25

7

Plei


116

2281

Aur

06h 48m 17.8s

+41º 04' 44"

5.4v

23

14

Plei


117

2286

Mon

06h 47m 40.1s

-03º 08' 52"

7.5v

50

14

Plei


118

2287 (M41)

Cma

06h 46m 00.0s

-20º 46' 00"

4.5v

160

38

Praes


119

2301

Mon

06h 51m 45.3s

+00º 27' 33"

6.0v

60

12

Plei


120

2304

Gem

06h 55m 11.9s

+17º 59' 19"

10.0v

30±

5

Praes


121


Cma

06h 54m 12.0s

-24º 38' 00"

2.6v

20

50

Plei


122

2309

Mon

06h 56m 03.6s

-07º 10' 28"

10.5v

14±

3

Plei


123

2311

Mon

06h 57m 47.5s

-04º 36' 41"

9.6v

20

6

Plei


124

2323 (M50)

Mon

07h 02m 42.3s

-08º 23' 26"

5.9v

45

16

Plei


125

2324

Mon

07h 04m 07.9s

+01º 02' 41"

8.4v

50

7

Praes


126

2331

Gem

07h 06m 59.8s

+27º 15' 42"

8.5v

20

18

Plei


127

2335

Mon

07h 06m 49.5s

-10º 01' 43"

7.2v

40

12

Plei


128

2343

Mon

07h 08m 06.8s

-10º 37' 01"

6.7v

12

6

Plei


129

2345

Cma

07h 08m 18.8s

-13º 11' 38"

7.7v

45

12

Praes


130

2353

Mon

07h 14m 30.3s

-10º 15' 57"

7.1v

60

20

μNorm


131

2354

Cma

07h 14m 15.3s

-25º 41' 33"

6.5v

30

20

Praes


132


Cma

07h 14m 24.0s

-31º 10' 00"

3.6v

18

95

Plei


133

2355

Gem

07h 16m 59.3s

+13º 44' 59"

9.7v

30

9

Praes


134

2360

Cma

07h 17m 43.1s

-15º 38' 29"

7.2v

50

12

Praes


135


Pup

07h 17m 18.0s

-36º 50' 00"

2.1v

16

50

Neb?


136

2362

Cma

07h 18m 41.5s

-24º 57' 15"

3.8v

20

8

μNorm


137

2367

Cma

07h 20m 04.5s

-21º 53' 03"

7.9v

(30)

3.5

Plei


138

2368

Mon

07h 21m 06.3s

-10º 22' 18"

11.8v

(15)

5

Praes


139

2374

Cma

07h 23m 56.1s

-13º 15' 48"

8.0v

40

19

Plei


140


Cma

07h 23m 54.0s

-32º 12' 00"

3.5v

15

42

Plei


141

2383

Cma

07h 24m 39.9s

-20º 56' 51"

8.4v

25±

5

Praes


142

2384a

Cma

07h 25m 11.8s

-21º 01' 24"

7.4v

(15)

2.5

μNorm


143

2384b

Cma

07h 25m 11.8s

-21º 01' 24"

nl

nl

nl

μNorm


144

2395

Gem

07h 27m 12.9s

+13º 36' 29"

8.0v

22

12

Plei


145

Tr.6

Cma

07h 26m 06.0s

-24º 18' 00"

10.0p

20

6

Plei


146

Tr.7

Pup

07h 27m 18.0s

-24º 02' 00"

7.9v

12±

5

Plei


147

Mel.66

Pup

07h 26m 23.0s

-47º 40' 00"

7.8p

(200)

10

Praes


148

2396

Pup

07h 28m 02.9s

-11º 43' 11"

7.4v

40

10

Plei


149

2401

Pup

07h 29m 24.4s

-13º 57' 58"

12.6v

(20)

2

Praes


150

2414

Pup

07h 33m 12.8s

-15º 27' 14"

7.9v

(35)

4

Plei


151

2421

Pup

07h 36m 11.8s

-20º 36' 44"

8.3v

28

10

Praes


152

2422 (M47)

Pup

07h 36m 35.0s

-14º 28' 57"

4.4v

50

29

Plei


153

2423

Pup

07h 37m 06.7s

-13º 52' 17"

6.7v

40

19

Praes


154

2420

Gem

07h 38m 23.9s

+21º 34' 27"

8.3v

(100+)

10

Plei


155

Mel.71

Pup

07h 37m 30.0s

-12º 04' 00"

7.1v

60

9

Praes


156

Mel.72

Mon

07h 38m 24.0s

-10º 41' 00"

10.1p

24

9

Praes

15

157

2432

Pup

07h 40m 53.8s

-19º 05' 09"

10.2v

(50+)

7

Praes


158

2439

Pup

07h 40m 45.4s

-31º 41' 33"

6.9v

26

10

Plei


159

2437 (M46)

Pup

07h 41m 46.8s

-14º 48' 36"

6.1v

125

27

Praes


160

2447 (M93)

Pup

07h 44m 29.2s

-23º 51' 11"

6.2v

80

22

Praes


161

2451

Pup

07h 45m 15.0s

-37º 58' 03"

2.8v

35

45

Plei


162

2453

Pup

07h 47m 34.1s

-27º 11' 41"

8.3v

10

5

Plei


163

2455

Pup

07h 48m 58.6s

-21º 17' 53"

10.2v

20

7

Plei


164

2467

Pup

07h 52m 29.5s

-26º 25' 48"

7.1v

20

15

Neb


165

2477

Pup

07h 52m 09.8s

-38º 32' 00"

5.8v

300

27

Glob


166

2482

Pup

07h 55m 10.3s

-24º 15' 17"

7.3v

28

12

Plei


167

Tr.8

Pup

07h 55m 04.0s

-17º 42' 35"

9.6p

30

7

Praes


168

Tr.9

Pup

07h 55m 18.0s

-25º 56' 00"

8.7v

14

5

Plei


169

2489

Pup

07h 56m 15.9s

-30º 03' 51"

7.9v

60

8

Praes


170

2506

Mon

08h 00m 01.7s

-10º 46' 11"

7.6v

80

8

Praes


171

2509

Pup

08h 00m 47.8s

-19º 03' 02"

9.3v

30

8

Plei


172

2516

Car

07h 58m 07.1s

-60º 45' 12"

3.8v

70

29

Praes


173


Vel

08h 02m 49.0s

-46º 23' 00"

0.6v

70

370

Plei


174

2527

Pup

08h 04m 58.2s

-28º 08' 48"

6.5v

40

22

Plei


175

2533

Pup

08h 07m 04.1s

-29º 53' 02"

7.6v

30±

3.5

Praes


176

2539

Pup

08h 10m 37.9s

-12º 49' 09"

6.5v

65

21

Praes


177

2547

Vel

08h 10m 10.5s

-49º 13' 32"

4.7v

40

20

Plei


178

2546

Pup

08h 12m 15.6s

-37º 35' 39"

6.3v

40

40

Plei


179

2548 (M48)

Hya

08h 13m 43.1s

-05º 45' 02"

5.8v

90

54

Praes


180

2567

Pup

08h 18m 29.1s

-30º 38' 44"

7.4v

40

10

Plei


181

2571

Pup

08h 18m 56.3s

-29º 44' 57"

7.0v

20

13

Plei


182

2579

Pup

08h 20m 53.0s

-36º 13' 02"

7.5v

14

10

Plei

16

183

2580

Pup

08h 21m 27.9s

-30º 17' 36"

9.7v

25

7

Praes


184

2587

Pup

08h 23m 24.1s

-29º 30' 31"

9.2v

18

9

Plei


185


Pup

08h 22m 30.0s

-36º 10' 00"

7.8v

15

8

Plei


186

2588

Pup

08h 23m 09.5s

-32º 58' 31"

11.8v

(20+)

2

Praes


187


Pup

08h 24m 12.0s

-29º 09' 00"

9.6p

(20)

7

Plei


188

2627

Pyx

08h 37m 14.9s

-29º 57' 01"

8.4v

30

11

Praes


189

2632 (M44)

Cnc

08h 40m 22.2s

+19º 40' 19"

3.1v

60

95

Praes


190

2635

Pyx

08h 38m 26.0s

-34º 46' 18"

11.2v

(15)

3

Praes


191

IC2391

Vel

08h 40m 21.0s

-53º 05' 21"

2.0v

15

60

Plei

17

192

IC2395

Vel

08h 42m 31.0s

-48º 06' 30"

4.0v

19

7

Plei


193

2660

Vel

08h 42m 38.0s

-47º 12' 02"

8.8v

(70)

4

Glob


194

2659

Vel

08h 42m 33.0s

-45º 00' 02"

8.6v

35

2.7

Praes


195

2658

Pyx

08h 43m 27.3s

-32º 39' 22"

9.2v

40

12

Praes


196


Pyx

08h 45m 00.0s

-31º 38' 00"

10.5p

(12)

5

Praes


197


Vel

08h 44m 51.0s

-41º 14' 00"

6.7p

14

40

Plei


198


Pyx

08h 45m 18.0s

-31º 46' 00"

11.2

nl

5

Praes


199

2669

Vel

08h 46m 19.0s

-52º 56' 06"

6.1v

25

12

Praes

18

200

2670

Vel

08h 45m 29.5s

-48º 47' 30"

7.8v

25

9

Plei


201

2671

Vel

08h 46m 11.9s

-41º 52' 38"

11.6v

(40)

4

Praes


202

Harv.3

Vel

08h 46m 30.0s

-52º 54' 00"

6.1p

22

12

Plei

18

203

Tr.10

Vel

08h 47m 54.0s

-42º 27' 00"

5.0v

18

29

Plei


204

2682 (M67)

Cnc

08h 51m 20.1s

+11º 48' 43"

6.9v

90

29

Praes


205

Markarian 18

Vel

09h 00m 32.0s

-48º 59' 06"

7.8v

8

5

μNorm


206

2818

Pyx

09h 16m 01.5s

-36º 37' 37"

8.2v

25

9

Praes

19

207

2849

Vel

09h 19m 22.9s

-40º 31' 13"

12.5v

(40)

2.3

Praes


208

IC2488

Vel

09h 27m 45.0s

-57º 40' 08"

7.4

70

18

Plei


209

2910

Vel

09h 30m 29.0s

-52º 54' 50"

7.2v

15

5

Plei


210

2925

Vel

09h 33m 10.9s

-53º 23' 45"

8.3v

30

12

Plei


211

2972

Vel

09h 40m 11.5s

-50º 19' 15"

9.9v

(25)

4

Praes


212

3033

Vel

09h 48m 39.1s

-56º 24' 42"

8.8v

(50)

5

Plei


213


Vel

09h 54m 35.0s

-50º 55' 11"

9.2p

21

17

Plei


214

3105

Vel

10h 00m 39.5s

-54º 47' 15"

9.7v

(20)

2

Praes


215

3114

Car

10h 02m 42.7s

-60º 06' 32"

4.2v

100

35

Plei


216

Tr.11

Car

10h 04m 58.6s

-61º 36' 54"

8.1p

15

5

Plei


217

Tr.12

Car

10h 06m 29.0s

-60º 18' 00"

8.8p

12

4

Plei


218

3228

Vel

10h 21m 22.2s

-51º 43' 57"

6.0v

22

5

Plei


219

Tr.13

Car

10h 23m 49.6s

-60º 08' 14 "

11.3

(40)

5

Plei


220

(incorrectly) 3247

Car

10h 25m 52.0s

-57º 55' 35"

7.6p

18

6

Plei

20

221

3255

Car

10h 26m 31.3s

-60º 40' 42"

11.0v

(30)

2

Glob

21

222

IC2581

Car

10h 27m 36.0s

-57º 40' 13"

4.0v

14

7

μNorm


223


Car

10h 30m 24.0s

-60º 05' 00"

9.4

30

9

Plei


224

3293

Car

10h 35m 53.8s

-58º 14' 10"

4.7v

(93)

5

Praes


225

3324

Car

10h 37m 18.7s

-58º 39' 36"

6.7

(44)

5

(Neb)


226

3330

Vel

10h 38m 47.5s

-54º 06' 56"

7.4v

20

6

Plei


227

Mel.101

Car

10h 42m 12.0s

-65º 06' 00"

8.0v

70

16

Praes


228


Car

10h 42m 04.0s

-59º 55' 00"

4.4v

50

14

Neb


229

IC2602

Car

10h 43m 23.0s

-64º 26' 13"

1.0v

24

100

Neb


230

Tr.14

Car

10h 43m 56.0s

-59º 33' 00"

5.5v

(44)

5

Neb


231

Tr.15

Car

10h 44m 43.0s

-59º 22' 00"

7.0v

15

15

Neb


232


Car

10h 44m 59.0s

-59º 33' 00"

6.8v

15

4

Plei


233

eta Car cluster (Tr 16)

Car

10h 45m 16.2s

-59º 43' 17"

5.0v

40

10

Neb

22

234

Tr 16

Car

10h 45m 21.0s

-59º 45' 00"

5.0v

(18)

3

Plei

22

235

Tr.17

Car

10h 56m 24.0s

-59º 12' 00"

8.4

25

5

Plei


236


Car

10h 57m 17.0s

-61º 06' 36"

7.7v

30

10

Plei


237

3496

Car

10h 59m 33.8s

-60º 20' 12"

8.2v

45

9

Praes


238

3532

Car

11h 05m 47.5s

-58º 46' 13"

3.0v

135

55x50

Praes


239

3572

Car

11h 10m 19.2s

-60º 14' 54"

6.6v

nl

6

Plei

23

240


Car

11h 10m 19.2s

-60º 14' 54"

n/a

20

n/a

Plei

23

241

Tr.18

Car

11h 11m 28.0s

-60º 40' 00"

6.9v

10

6

Plei


242

3590

Car

11h 12m 59.0s

-60º 47' 20"

8.2v

15

4

Plei


243

Tr.19

Car

11h 15m 07.0s

-57º 33' 00"

9.6v

(40)

10

Praes

24

244

3603

Car

11h 15m 06.6s

-61º 15' 40"

9.1v

(44)

2.5

Praes


245

IC2714

Car

11h 18m 08.0s

-62º 44' 21"

8.0v

120

15

Praes


246

Mel.105

Car

11h 19m 42.0s

-63º 29' 00"

8.5v

40±

5

Praes


247

3680

Cen

11h 25m 37.1s

-43º 15' 00"

7.6v

25

12

Praes


248

3766

Cen

11h 36m 14.4s

-61º 36' 36"

5.3v

137

12

Praes


249


Cen

11h 36m 52.0s

-63º 04' 24"

4.0v

25

65

Neb


250

3960

Cen

11h 50m 33.2s

-55º 40' 35"

8.3v

60

6

Praes


251

4052

Cru

12h 02m 05.2s

-63º 13' 24"

8.8v

60

10

Plei


252

4103

Cru

12h 06m 39.5s

-61º 15' 00"

7.4v

20±

6

Plei


253

4230

Cen

12h 17m 09.3s

-55º 17' 10"

9.4v

(15)

7x5

Plei


254

4337

Cru

12h 24m 03.3s

-58º 07' 25"

8.9v

20

3.5

Plei

25

255

4349

Cru

12h 24m 06.0s

-61º 52' 13"

7.4v

70

15

Praes


256

Mel.111

Com

12h 25m 00.0s

+26º 00' 00"

1.8v

30

275

Plei


257


Cru

12h 24m 45.9s

-60º 53' 12"

nl

12

5

Plei

26

258

Harv.5

Cru

12h 27m 10.0s

-60º 46' 00"

7.1v

(25)

5

Plei

26

259

4439

Cru

12h 28m 26.3s

-60º 06' 11"

8.4v

(20)

4

Plei


260

4463

Mus

12h 29m 55.2s

-64º 47' 23"

7.2v

18±

5

Plei


261

Harv.6

Mus

12h 37m 57.0s

-68º 22' 00"

10.7v

(100)

9

Praes


262

Tr.20

Cru

12h 39m 34.0s

-60º 37' 00"

10.1v

nl

7

Praes


263

4609

Cru

12h 42m 19.9s

-62º 59' 38"

6.9v

12

5

Plei


264

4755

Cru

12h 53m 37.1s

-60º 21' 22"

4.2v

(218)

10

Plei

27

265

4815

Mus

12h 57m 58.3s

-64º 57' 42"

8.6v

(100)

3

Praes

28

266

4852

Cen

13h 00m 14.5s

-59º 36' 58"

8.9v

20

11

Plei


267

5053

Com

13h 16m 27.0s

+17º 41' 52"

9.0v

nl

11

Praes

29

268

(Harvard 8)

Mus

13h 18m 13.0s

-67º 05' 00"

9.5v

30

5

Plei


269


Mus

13h 23m 31.0s

-66º 10' 48"

9.2p

nl

15

Plei

30

270

5138

Cen

13h 27m 15.2s

-59º 02' 27"

7.6v

15

7

Plei


271


Cen

13h 29m 54.0s

-64º 12' 00"

8.7v

16

5

Plei


272


Cen

13h 30m 26.0s

-61º 19' 00"

7.7v

15

10

Plei


273

5168

Cen

13h 31m 07.3s

-60º 56' 21"

9.1v

(50)

4

Praes


274

Tr.21

Cen

13h 32m 14.0s

-62º 48' 00"

7.7v

(20)

5

Praes


275


Cen

13h 34m 39.0s

-60º 12' 00"

10.2v

(20)

11

Plei


276

5281

Cen

13h 46m 35.1s

-62º 54' 59"

5.9v

(40)

8

Plei


277


Cir

13h 48m 00.0s

-66º 04' 00"

9.2v

(30)

15

Praes


278

5288

Cir

13h 48m 44.9s

-64º 41' 07"

11.8v

nl

4

Plei


279

5316

Cen

13h 53m 57.2s

-61º 52' 09"

6.0v

22

13

Plei


280

5460

Cen

14h 07m 27.7s

-48º 20' 33"

5.6v

50

35

Praes


281

5606

Cen

14h 27m 47.2s

-59º 37' 56"

7.7v

(15)

3

Plei


282

5617

Cen

14h 29m 44.0s

-60º 42' 39"

6.3v

60

10

Praes


283

Tr.22

Cen

14h 31m 02.0s

-61º 10' 00"

7.9v

15

10

Plei

31

284

5662

Cen

14h 35m 37.5s

-56º 37' 05"

5.5v

35

30

Plei


285

Ursa Major

Uma

12h 03m 00.0s

+58º 00' 00"

nl

nl

nl

nl


286

5715

Cir

14h 43m 29.7s

-57º 34' 37"

9.8v

20

5

Praes


287

5749

Lup

14h 48m 53.9s

-54º 29' 51"

8.8v

16

7

Plei


288

5764

Lup

14h 53m 32.2s

-52º 40' 14"

12.6v

12

3

nl


289

5822

Lup

15h 04m 21.2s

-54º 23' 47"

6.5v

100

39

Plei


290

5823

Cir

15h 05m 30.6s

-55º 36' 13"

7.9v

30

12

Plei


291

5925

Nor

15h 27m 26.7s

-54º 31' 43"

8.4v

45

20

Plei


292


Nor

15h 49m 51.0s

-57º 37' 11"

7.9v

(50)

15

Plei


293

5999

Nor

15h 52m 08.6s

-56º 28' 22"

9.0v

40

3

Praes


294

6005

Nor

15h 55m 48.7s

-57º 26' 14"

10.7v

14

3

Praes

32

295

Tr.23

Nor

16h 00m 48.0s

-53º 32' 00"

11.2v

25

9

Plei


296

6025

TrA

16h 03m 17.0s

-60º 25' 54"

5.1v

25

12

Plei


297

6031

Nor

16h 07m 35.0s

-54º 00' 54"

8.5v

(121)

2

Plei


298

6067

Nor

16h 13m 11.0s

-54º 13' 06"

5.6v

115

12

Praes


299

Harv.10

Nor

16h 19m 54.0s

-54º 58' 00"

6.9p

24

25

Plei


300

6087

Nor

16h 18m 50.5s

-57º 56' 04"

5.4v

30

12

Plei


301

6124

Sco

16h 25m 20.0s

-40º 39' 13"

5.8v

60

40

Praes


302

Antares Cl.

Sco

16h 26m 00.0s

-26º 13' 00"

1.0v

20±

505

Neb


303

6134

Nor

16h 27m 46.5s

-49º 09' 04"

7.2v

45

6

Praes


304

6152

Nor

16h 32m 45.5s

-52º 38' 38"

8.1v

35

29

Praes


305

6167

Nor

16h 34m 34.9s

-49º 46' 19"

6.7v

40

7

Plei


306

6169

Nor

16h 34m 04.6s

-44º 02' 44"

6.6v

(40)

12

μNorm


307


Nor

16h 35m 20.0s

-51º 00' 00"

9.2v

22

5

Plei


308

6178

Sco

16h 35m 47.2s

-45º 38' 37"

7.2v

7

4

Plei


309

6192

Sco

16h 40m 23.8s

-43º 22' 00"

8.5v

25

7

Praes


310

6193

Ara

16h 41m 20.2s

-48º 45' 45"

5.2v

25

14

Plei


311

6200

Ara

16h 44m 07.3s

-47º 27' 45"

7.4v

40

12

Plei


312

6204

Ara

16h 46m 09.5s

-47º 01' 01"

8.2v

20

5

Praes


313

6208

Ara

16h 49m 28.1s

-53º 43' 42"

7.2v

40

15

Praes


314

6222

Sco

16h 49m 23.5s

-44º 43' 53"

10.1v

22

4

Praes

33

315

6231

Sco

16h 54m 10.9s

-41º 49' 27"

2.6v

(93)

14

Plei


316


Sco

16h 55m 30.0s

-40º 50' 00"

6.6v

60

105

Plei

34

317

6242

Sco

16h 55m 33.4s

-39º 27' 39"

6.4v

50

9

Praes


318

Tr.24

Sco

16h 57m 00.0s

-40º 40' 00"

8.6p

15

60

Plei


319

6249

Sco

16h 57m 41.5s

-44º 48' 43"

8.2v

18

6

Plei


320

6250

Ara

16h 57m 56.0s

-45º 56' 12"

5.9v

10

7

Plei


321

6253

Ara

16h 59m 05.1s

-52º 42' 32"

10.2v

25

5

Praes


322

6259

Sco

17h 00m 45.3s

-44º 39' 18"

8.0v

60

10

Praes


323

6268

Sco

17h 02m 10.3s

-39º 43' 42"

9.5v

22

6

Plei


324

6281

Sco

17h 04m 41.2s

-37º 59' 07"

5.4v

25

8

Plei


325

6318

Sco

17h 16m 11.5s

-39º 25' 30"

11.8v

20±

5

Praes


326

6322

Sco

17h 18m 25.7s

-42º 56' 02"

6.0v

12±

10

Plei


327

IC4651

Ara

17h 25m 14.0s

-49º 57' 35"

6.9v

65

10

Praes


328

6352

Her

17h 19m 11.3s

+36º 03' 38"

7.8v

nl

7.1

Glob

35

329

Tr.25

Sco

17h 24m 48.0s

-30º 00' 00"

11.7p

18±

4

Plei


330

6355

Oph

17h 23m 58.5s

-26º 21' 13"

8.6v

nl

5

Glob

36

331

Tr.26

Oph

17h 28m 30.0s

-29º 29' 00"

9.5p

20

17

Plei


332


Sco

17h 30m 48.0s

-37º 05' 00"

8.9v

25

2

Plei


333


Sco

17h 31m 18.0s

-34º 05' 00"

9.8p

8

5

Plei


334

6374 (6383)

Sco

17h 34m 42.4s

-32º 34' 53"

5.5

10

2.5

Plei

37

335

6383

Sco

17h 34m 42.4s

-32º 34' 53"

5.5v

10

2.5

μNorm

37

336

Tr.27

Sco

17h 36m 12.0s

-33º 29' 00"

6.7v

15

6

Plei


337

Tr.28

Sco

17h 36m 48.0s

-32º 29' 00"

7.7v

22

12.5

Praes


338


Sco

17h 38m 06.0s

-37º 43' 12"

8.0v

20

20

Plei


339

6396

Sco

17h 37m 38.0s

-35º 01' 33"

8.5v

8

nl

Plei

38

340

6404

Sco

17h 39m 37.3s

-33º 14' 48"

10.6v

12

5

Plei


341

6405 (M6)

Sco

17h 40m 20.7s

-32º 15' 15"

4.2v

55

33

Plei


342

6400

Sco

17h 40m 12.7s

-36º 56' 52"

8.8v

25

12

Plei


343

Tr.29

Sco

17h 41m 36.0s

-40º 06' 00"

7.5p

22

9

Plei


344

6416

Sco

17h 44m 19.9s

-32º 21' 40"

5.7v

35

30

Plei


345


Sco

17h 44m 35.0s

-33º 52' 00"

10.9v

12

4.8

Plei


346

6426

Oph

17h 44m 54.6s

+03º 10' 13"

10.9v

nl

4.2

Praes

39

347


Oph

17h 46m 18.0s

-29º 20' 00"

8.8v

14

10

Plei


348

6425

Sco

17h 47m 01.6s

-31º 31' 46"

7.2v

25

15

Plei


349

IC4665

Oph

17h 46m 18.0s

+05º 43' 00"

4.2v

28

40

Plei


350


Oph

17h 48m 07.0s

+01º 21' 00"

6.1v

25

40

Plei


351


Sgr

17h 49m 04.0s

-28º 45' 00"

9.3v

22

8

Plei


352

6451

Sco

17h 50m 40.6s

-30º 12' 42"

8.2v

40

7

Praes


353

6469

Sgr

17h 53m 12.1s

-22º 16' 30"

8.2v

35

8

Plei


354

6475 (M7)

Sco

17h 53m 51.1s

-34º 47' 34"

3.3v

60

80

Plei


355

Tr.30

Sco

17h 56m 30.0s

-35º 19' 00"

8.8p

50

10

Plei


356

6494 (M23)

Sgr

17h 57m 04.7s

-18º 59' 07"

5.5v

85

30

Praes


357

Tr.31

Sgr

17h 59m 49.0s

-28º 10' 00"

9.8v

42

5

Plei


358

6507

Sgr

17h 59m 50.7s

-17º 27' 01"

9.6v

16

6

Plei


359

Melotte 186

Oph

18h 01m 06.0s

+02º 54' 00"

3.0v

15

240

Plei


360

6514

Sgr

18h 02m 20.9s

-23º 01' 38"

6.3v

40

30

Neb


361

6520

Sgr

18h 03m 25.1s

-27º 53' 28"

7.6v

20

6

Plei


362

6530

Sgr

18h 04m 31.0s

-24º 21' 29"

4.6v

20

14

Neb


363

6531 (M21)

Sgr

18h 04m 13.4s

-22º 29' 24"

5.9v

25±

13

Plei


364

6540

Sgr

18h 06m 08.5s

-27º 45' 55"

14.6v

nl

1.5

Praes


365

6546

Sgr

18h 07m 22.5s

-23º 17' 46"

8.0v

20

15

Praes


366

6544

Sgr

18h 07m 20.5s

-24º 59' 51"

7.5v

nl

8.9

Glob

41

367


Sgr

18h 09m 43.0s

-23º 39' 35"

6.4

10

40

Neb


368

6558

Sgr

18h 10m 18.3s

-31º 45' 49"

8.6v

nl

3.7

Praes

42

369

6568

Sgr

18h 12m 45.1s

-21º 34' 59"

8.6v

29

12

Plei


370

6583

Sgr

18h 15m 49.9s

-22º 08' 09"

10.0v

30±

5

Praes


371

6595

Sgr

18h 17m 16.0s

-19º 44' 30"

7.0v

12

4x3

Neb

43

372

Tr.32

SerCD

18h 17m 10.4s

-13° 20' 40"

12.2p

20

6

Praes


373

6604

SerCD

18h 18m 02.9s

-12º 14' 35"

6.5v

10±

4

μNorm


374

6603

Sgr

18h 18m 26.9s

-18º 24' 22"

11.1v

(100)

5

Praes

44

375

6611 (M16)

SerCD

18h 18m 48.1s

-13º 48' 26"

6.0v

30

21

Neb


376

6613 (M18)

Sgr

18h 19m 58.4s

-17º 06' 07"

6.9v

14

10

Plei


377

6618

Sgr

18h 21m 09.0s

-16º 10' 36"

6.0v

27

27

Neb

45

378

Tr.33

Sgr

18h 24m 42.0s

-19º 43' 00"

7.8v

10

6

Plei


379

6631

Sct

18h 27m 11.3s

-12º 01' 52"

11.7v

20±

7

Praes


380

6633

Oph

18h 27m 15.2s

+06º 30' 30"

4.6v

30

20

Plei


381

6642

Sgr

18h 31m 54.3s

-23º 28' 35"

8.9v

nl

5.8

Glob

46

382

IC4725 (M25)

Sgr

18h 31m 36.0s

-19º 15' 00"

4.6v

60

32

Praes


383

6645

Sgr

18h 32m 37.9s

-16º 53' 02"

8.5v

100

15

Praes


384

6649

Sct

18h 33m 27.9s

-10º 24' 10"

8.9v

15

5

Praes


385

6664

Sct

18h 36m 33.3s

-08º 13' 15"

7.8v

28

16

Praes


386

IC4756

Ser

18h 39m 00.0s

+05º 27' 00"

4.6v

120

52

Praes


387

Tr.34

Sct

18h 39m 48.0s

-08º 29' 00"

8.6v

20

7

Plei

47

388

Tr.35

Sct

18h 42m 54.0s

-04º 08' 00"

9.2v

25

9

Plei


389

6694 (M26)

Sct

18h 45m 18.6s

-09º 23' 01"

8.0v

18

14

Praes


390

6704

Sct

18h 50m 45.7s

-05º 12' 20"

9.2v

20

6

Plei


391

6705 (M11)

Sct

18h 55m 21.9s

-53º 49' 11"

5.8v

100±

13

Glob

48

392

6709

Aql

18h 51m 18.9s

+10º 19' 07"

6.7v

40

13

Praes


393

6716

Sgr

18h 54m 34.3s

-19º 54' 04"

7.5v

15

6

Plei


394


Sgr

18h 52m 28.0s

-20º 59' 28"

6.3v

22

22

Praes


395

6717

Sgr

18h 55m 05.9s

-22º 42' 06"

8.4v

nl

3.9

Glob

49

396

6738

Aql

19h 01m 21.5s

+11º 36' 56"

8.3v

20

15

Plei


397

6755

Aql

19h 07m 49.0s

+04º 15' 59"

7.5v

25

14

Plei


398

6756

Aql

19h 08m 42.5s

+04º 42' 21"

10.6v

(40)

4

Praes


399

4-5 Vul.

Vul

19h 25m 24.0s

+20º 11' 00"

3.6v

15

60

Plei

50

400

6802

Vul

19h 30m 35.0s

+20º 15' 39"

8.8v

201

5

Plei


401


Aql

19h 38m 24.0s

-00º 20' 00"

7p


1

μNorm


402

6811

Cyg

19h 37m 17.9s

+46º 23' 20"

6.8v

40

12

Praes


403

6819

Cyg

19h 41m 18.0s

+40º 11' 12"

7.3v

929

5

Plei


404

6820

Vul

19h 42m 27.9s

+23º 05' 17"

14.9p

6

0.8

Neb

51

405

6823

Vul

19h 43m 09.8s

+23º 18' 00"

7.1v

13

12

Plei


406

6830

Vul

19h 50m 59.5s

+23º 06' 00"

7.9v

15

12

Plei


407

6834

Cyg

19h 52m 12.5s

+29º 24' 29"

7.8v

40

5

Praes


408

Harv.20

Sge

19h 53m 06.0s

+18º 20' 00"

7.7v

20

9

Plei


409

6838

Sge

19h 53m 46.1s

+18º 46' 42"

8.4v

150±

7.2

Glob

52

410

6846

Cyg

19h 56m 28.0s

+32º 20' 59"

14.2v

(40)

0.5

Plei


411

Mel.227

Oct

20h 17m 19.0s

-79º 02' 00"

5.3v

20

70

Plei


412

6866

Cyg

20h 03m 55.1s

+44º 09' 33"

7.6v

20

6

Plei


413

6871

Cyg

20h 05m 59.3s

+35º 46' 38"

5.2v

45

30

Plei


414

IC1311

Cyg

20h 10m 48.0s

+41º 11' 00"

13.1p

(60)

9

Glob

53

415

6883

Cyg

20h 11m 19.7s

+35º 49' 56"

8.0v

18

35

Plei


416

6882

Vul

20h 11m 55.8s

+26º 29' 20"

8.1v

20

20

Plei

54

417

6885

Vul

20h 11m 55.8s

+26º 29' 20"

8.1v

40

20

Plei

54

418

IC4996

Cyg

20h 16m 30.0s

+20º 16' 30"

7.3v

12

5

Plei


419


Cyg

20h 18m 06.0s

+40º 43' 00"

5.4p

16

4.5

μNorm


420

6910

Cyg

20h 23m 12.0s

+40º 46' 43"

7.4v

16

7

Plei


421


Cyg

20h 23m 18.0s

+41º 42' 00"

10.1p

20

5

Praes


422

6913 (M29)

Cyg

20h 23m 57.7s

+38º 30' 28"

6.6v

15

6

Plei


423

6939

Cep

20h 31m 30.1s

+60º 39' 44"

7.8v

40

7

Praes


424

6940

Vul

20h 34m 26.6s

+28º 16' 58"

6.3v

90

31

Praes


425

6996

Cyg

20h 56m 29.9s

+45º 28' 23"

10.0v

20

5

Neb

55

426

6994 (M73)

Aqr

20h 58m 55.9s

-12º 38' 08"

8.9v

(4)

2.8

Glob

56

427


Cep

20h 59m 30.0s

+68º 10' 00"

13.8v

6

4

Plei


428


Cyg

21h 03m 12.0s

+44º 35' 00"

8.7p

40

13

Neb


429

7023

Cep

21h 01m 35.5s

+68º 10' 11"

nl

nl

18

Neb

57

430

7031

Cyg

21h 07m 12.5s

+50º 52' 32"

9.1v

15

5

Plei


431

7039

Cyg

21h 10m 47.7s

+45º 37' 19"

7.6v

35

25

Plei


432

IC1369

Cyg

21h 12m 06.0s

+47º 44' 00"

8.8v

10

8

Plei


433

7044

Cyg

21h 13m 09.3s

+42º 29' 46"

12.0v

40

3.5

Praes


434

7062

Cyg

21h 23m 27.4s

+46º 22' 43"

8.3v

10

6

Praes


435

7063

Cyg

21h 24m 21.7s

+36º 29' 15"

7.0v

10

7

Plei


436

7067

Cyg

21h 24m 23.1s

+48º 00' 34"

9.7v

(47)

3

Praes


437

7086

Cyg

21h 30m 27.5s

+51º 36' 08"

8.4v

20

9

Praes


438

7092 (M39)

Cyg

21h 31m 48.3s

+48º 26' 55"

4.6v

22

31

Plei


439

IC1396

Cep

21h 39m 06.0s

+57º 30' 00"

3.5v

35

50

Plei


440

7128

Cyg

21h 43m 57.7s

+53º 42' 55"

9.7v

10

3.1

Plei


441

7129

Cep

21h 42m 58.9s

+66º 06' 47"

11.5p

7

7

Plei


442

7142

Cep

21h 45m 09.4s

+65º 46' 28"

9.3v

12

4.3

Plei


443

7160

Cep

21h 53m 40.2s

+62º 36' 12"

6.1v

16

7

Plei


444

7209

Lac

22h 05m 07.8s

+46º 29' 01"

7.7v

30

25

Praes


445

IC1434

Lac

22h 10m 30.0s

+52º 50' 00"

9.0p

30

7

Praes


446

7226

Cep

22h 10m 26.9s

+55º 23' 55"

9.6v

(83)

2

Praes


447

7235

Cep

22h 12m 24.9s

+57º 16' 17"

7.7v

12

4

Plei


448

7243

Lac

22h 15m 08.5s

+49º 53' 51"

6.4v

40

21

Plei


449

7245

Lac

22h 15m 11.5s

+54º 20' 33"

9.2v

(169)

5

Plei


450

7261

Cep

22h 20m 11.3s

+58º 07' 19"

8.4v

18

5

Plei


451

7296

Lac

22h 28m 02.8s

+52º 17' 21"

9.7v

10

3

Plei


452

7380

Cep

22h 47m 20.9s

+58º 07' 57"

7.2v

20

12

Plei


453

7419

Cep

22h 54m 20.0s

+60º 48' 56"

13.0v

(40)

6

Praes


454

7510

Cep

23h 11m 03.7s

+60º 34' 15"

7.9v

10±

7

Plei


455

7654 (M52)

Cas

23h 24m 50.4s

+61º 36' 24"

6.9v

35

16

Praes


456

7686

And

23h 30m 07.3s

+49º 08' 03"

5.6v

20

14

Plei

58

457

7762

Cep

23h 50m 01.7s

+68º 02' 17"

10.0p

(40)

15

Praes


458

Harv.21

Cas

23h 54m 06.0s

+61º 46' 00"

9.0p

10±

6

Plei

59

459

7788

Cas

23h 56m 45.5s

+61º 24' 00"

9.4v

15

4

Plei


460

7789

Cas

23h 57m 24.0s

+56º 42' 30"

6.7v

100

25

Praes


461

7790

Cas

23h 58m 24.2s

+61º 12' 30"

8.5v

18

5

Plei


462

189

Cas

00h 39m 35.7s

+61º 05' 40"

8.8v

(90)

5

Plei


463 (20a)


Cas

01h 48m 24.0s

+71º 57' 00"

nl

nl

nl

Plei


464 (60a)


Cam

05h 22m 00.0s

+73º 00' 00"

4.2p

nl

120

Plei


465 (127a)


Mon

07h 07m 12.0s

-10º 37' 00"

10.1p

nl

9

Praes


466 (127b)


Mon

07h 07m 18.0s

-10º 49' 00"

11.1p

(25)

4

Praes


467 (156a)

(Mel 72 per A/H)

Mon

07h 38m 29.0s

-10º 33' 00"

10.1v

(40)

5

Praes

15

468 (364a)


Sgr

18h 06m 36.0s

-27º 28' 00"

11v

8

0.9

Plei


469 (370a)


Sgr

18h 16m 15.0s

-18º 16' 00"

9.1v

(51)

2.6

Plei


470 (442a)

IC5146

Cyg

21h 53m 24.0s

+47º 16' 00"

7.2v

(110)

9

Neb


471 (444a)


Cep

22h 07m 06.0s

+72º 00' 00"

nl

nl

130

Plei












Notes for Specific Objects

Nearly all the notes below were gleaned from the book Star Clusters by Brent A. Archinal and Steven J. Hynes. Specific references to portions of the book are provided where they seemed especially useful.



1. Cr 8: Collinder lists as the NGC designation for this cluster the number 281. However, NGC 281 is itself not a cluster, but a reflection nebula. The cluster Collinder studied here is properly designated IC 1590.

2. Cr 21: Asterism.

3. Cr 24 & Cr 25: The Double Cluster

4. Cr 26: More likely to be found on charts as IC 1805.

5. Cr 32/33/34: Essentially all parts of one complex, IC 1848 per A/H pg 134.

6. Cr. 39: Perseus Moving Cluster/Group (Mel 20).

7. Cr. 41: Often depicted elsewhere as a bright nebula without mention of the loose cluster involved.

8. Cr 50: TMC = Taurus Moving Cluster.

9. Cr. 63: Associated with nebula IC 410.

10. Cr. 69: a.k.a. Lambda Orionis cluster.

11. Cr. 70: Orion belt cluster.

12. Cr. 81: Sometimes erroneously listed as a globular cluster.

13. Cr. 84: The NGC number listed by Collinder is properly assigned to the nebulosity surrounding Cr.84, NOT to the cluster itself (which may not actually be a cluster).

14. Cr. 109 Some references give an erroneous location of 06h 38.4m +01° 11' due to an original error by Collinder.

15. Cr 156: According to A/H Collinder 156=Mel 72=Cr 467.

16. Cr 182: It is possible that this is not an actual star cluster.

17. Cr 191: The center of a super cluster (A/H p. 137); good binocular object.

18. Cr. 199 and 202: something of a messy situation, with Cr 202 (Harvard 3) being included as a separate cluster by various authors, but with very different coordinates, even though Harv. 3 is actually "inside"of NGC 2669 (Cr 199); Cr 202 is apparently a central condensation of the larger cluster. (See A/H p. 168)

19. Cr. 206: an open cluster that actually includes a planetary nebula; A/H argue that the planetary nebula should be given the NGC designation used by Collinder, with the cluster being identified as Cr 206.

20. Cr. 220: In assembling his catalog Collinder incorrectly identified this cluster as NGC 3247, when it was in fact a "new"cluster. Sold himself short. The NGC number is left in the spreadsheet because some references have apparently perpetuated this error.

21. Cr. 221: May not be a true star cluster.

22. Cr. 233 and 234: Both Collinder entries refer to the eta Carinae star cluster, with 234 applied by Collinder to the southern portion. The entire object is properly known as Trumpler 16.

23. Cr. 239 & 240: Another cluster in a cluster; 239 = NGC 3572, while 240 should be only a Cr. #.

24. Cr. 243 (Tr.19): Described by Skiff as "not obvious in 0.35 degree field."

25. Cr. 254: Probably not a true cluster.

26. Cr 257 & 258: Apparently labeled incorrectly some places as Harv. 5 or Hogg 74. (A/H p. 132 for details.)

27. Cr. 264: J. Herschel's "Jewel Box."

28. Cr. 265: Probably not a true cluster.

29. Cr. 267: This is actually a globular cluster. (A/H p.237)

30. Cr. 269: Probably not a true cluster.

31. Cr. 283: Probably not a true cluster.

32. Cr. 294: Probably not a true cluster.

33. Cr. 314: According to A/H Collinder was apparently incorrect in identifying this cluster with NGC 6222. No NSOG reference to this cluster under either designation. However, older atlases such as Norton's 19th edition show NGC 6222 is the specified position, as does the newer HB Astroatlas. The HCNGC lists NGC 6222 and Cr. 314 as synonymous.

34. Cr. 316: Appears to be superposed on Tr. 24, and may be part of the same cluster.

35. Cr. 328: Collinder and his mentor apparently thought this might be a globular cluster. Later studies have verified that this is indeed the case.

36. Cr. 330: Another globular cluster caught up in Collinder's survey.

37. Cr. 334 & 335: Duplicate listings; NGC 6374 is not a separate open cluster.

38. Cr. 339: Collinder provides NGC 6393 for this object, which turns out to be a galaxy in Draco. The coordinates in Collinder's catalog actually point to an object in Scorpius, and a check of the Historically Corrected New General Catalogue (HCNGC) Ver 1.02 shows NGC 6396 as the correct alias for Cr. 339. Data from the HCNGC has been used in the updated list.

39. Cr. 346: Another misidentified globular cluster.

40. Cr. 364: Another misidentified globular cluster.

41. Cr. 366: This really is, as Collinder and Lundmark believed, a globular cluster.

42. Cr. 368: Another globular cluster, which was not considered certain in Collinder's time.

43. Cr. 371: The NGC number applied by Collinder is actually a reference to the nebula around the cluster. He discovered the cluster himself, but apparently did not know he was first to make the distinction.

44. Cr. 374: This cluster is embedded within M24.

45. Cr. 377: Cluster associated with M17.

46. Cr. 381: Yet another cluster considered a globular when Collinder assembled his catalog. It's globular status has since been verified.

47. Cr. 387: May not be a real cluster.

48. Cr. 391: Collinder apparently considered M11 a globular cluster.

49. Cr. 395: A strange "object"that appears to be globular cluster NGC 6717 (Palomar 9) very near IC 4802, an OC along the same line of sight.

50. Cr. 399: The -˜Coat Hanger' asterism, which is not a true star cluster.

51. Cr. 404: May be an asterism associated with nebula NGC 6820.

52. Cr. 409: Globular cluster M71.

53. Cr. 414: Was considered a possible globular cluster when Collinder made the catalog.

54. Cr. 416 & 417: Possibly only a part of NGC 6885.

55. Cr. 425: Probably an asterism in a nebulous region.

56. Cr. 426: It is thought that Collinder's description of M73 is actually for M72, a globular cluster, and not the object he intended for Cr. 426.

57. Cr. 429: Possible cluster associated with NGC 7023; the NGC number does not actually refer to his cluster.

58. Cr. 456: May not be a true cluster.

59. Cr.458: Another grouping that may not be a real cluster.

60. Cr. 471: Associated with the nebula identified by IC 5146; this number does not apply directly to the cluster.




0 Comments



Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics