SG-Open Cluster Category

• Messier 6

  

  NGC 6405
  Butterfly Cluster

• Messier 7

  

  NGC 6475
  Ptolemy's Cluster

• Messier 8

  

  Lagoon Nebula

• Messier 11

  

  NGC 6705
  Wild Duck Cluster

• Messier 16

  

  Eagle Nebula
  NGC 6611 & IC 4703

• Messier 16

  

  Eagle Nebula
  NGC 6611 & IC 4703

• Messier 18

  

  NGC 6613

• Messier 21

  

  NGC 6531

• Messier 23

  

  NGC 6494

• Messier 25

  

  IC 4725

• Messier 26

  

  NGC 6694

• Messier 29

  

  NGC 6913

• Messier 34

  

  NGC 1039

• Messier 35
  and NGC 2158

  

  NGC 2168
  and NGC 2158

• Messier 36

  

  NGC 1960

• Messier 37

  

  NGC 2099
  37.5X

• Messier 37

  

  NGC 2099
  120X

• Messier 38
  and NGC 1907

  

  NGC 1912 and
  NGC 1907 (37.5X)

• Messier 38
  and NGC 1907

  

  NGC 1912 and
  NGC 1907 (120X)

• Messier 39

  

  NGC 7092

• Messier 41

  

  NGC 2287

• Messier 44

  

  NGC 2632
  Beehive Cluster

• Messier 45

  

  Pleiades

• Messier 45

  [Labeled Sketch]

  

  Pleiades
  Naked Eye

• Messier 46
  and NGC 2438

  

  NGC 2437
  and NGC 2438

• Messier 47
  and NGC 2423

  

  NGC 2422
  and NGC 2423

• Messier 48

  

  NGC 2548

• Messier 50

  

  NGC 2323

• Messier 52

  

  NGC 7654
  37.5X

• Messier 52

  

  NGC 7654
  120X

• Messier 67

  

  NGC 2682

• Messier 93

  

  NGC 2447

• Messier 103

  

  NGC 581
  37.5X

• Messier 103

  

  NGC 581
  75X

• NGC 654

  

   

• NGC 663

  

   

• NGC 869
  and NGC 884

  

  Double Cluster
  in Perseus

• NGC 1502 and
  Struve 485

  

   

• NGC 1647

  

   

• NGC 2169
  (37 Cluster)

  

  Contains
  Struve 848

• Struve 848

  

  Within
  NGC 2169

• NGC 2244
  and Sh 2-275

  

  Rosette Nebula

• NGC 3372,
  Eta Carinae,
  and NGC 3293

  

   

• NGC 457
  and NGC 436

  

   

• NGC 6231,
  NGC 6242, CR 316

  

  False Comet

• NGC 6520 and
  Barnard 86

  

  Inkspot Nebula

• NGC 6866

  

  Frigate Bird Cluster

• NGC 6910

  

  Rocking Horse
  Cluster

• NGC 7062