Open clusters
663 CATALOGUEDStars born together and still travelling together — loose open groups, or ancient globes of hundreds of thousands.
BY CONSTELLATION · 70 REGIONS
DORADO · 194MENSA · 68SAGITTARIUS · 49CYGNUS · 43SCORPIUS · 42TUCANA · 40PUPPIS · 37MONOCEROS · 35CASSIOPEIA · 33CENTAURUS · 27OPHIUCHUS · 26VELA · 24AURIGA · 19PERSEUS · 19AQUILA · 17CARINA · 17CEPHEUS · 15CANIS MAJOR · 14VULPECULA · 14GEMINI · 13SCUTUM · 13NORMA · 12ORION · 11TAURUS · 11ARA · 10CRUX · 9HYDRUS · 8LUPUS · 8LACERTA · 7SERPENS · 7ANDROMEDA · 5COMA BERENICES · 5TRIANGULUM · 5CAMELOPARDALIS · 4CANCER · 4CIRCINUS · 4COLUMBA · 4HERCULES · 4MUSCA · 4PEGASUS · 4AQUARIUS · 3DELPHINUS · 3HYDRA · 3LEPUS · 3LYRA · 3PYXIS · 3SAGITTA · 3APUS · 2CANIS MINOR · 2CAPRICORNUS · 2HOROLOGIUM · 2LYNX · 2PICTOR · 2BOÖTES · 1CANES VENATICI · 1CHAMAELEON · 1CORONA AUSTRALIS · 1DRACO · 1ERIDANUS · 1FORNAX · 1LIBRA · 1PAVO · 1RETICULUM · 1SCULPTOR · 1TELESCOPIUM · 1TRIANGULUM AUSTRALE · 1URSA MAJOR · 1URSA MINOR · 1VIRGO · 1VOLANS · 1
NGC 2232
Open cluster
—
1053 ly
3.90 V
Monoceros
NGC 2234
Open cluster
—
—
—
Gemini
NGC 2236
Open cluster
—
8610 ly
8.50 V
Monoceros
NGC 2240
Open cluster
—
—
—
Auriga
NGC 2241
Open cluster
—
—
13.25 V
Dorado
NGC 2243
Open cluster
—
13 594 ly
9.40 V
Canis Major
NGC 225
Open cluster
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2232 ly
7.00 V
Cassiopeia
NGC 2250
Open cluster
—
—
8.90 V
Monoceros
NGC 2251
Open cluster
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4745 ly
7.30 V
Monoceros
NGC 2252
Open cluster
—
—
7.70 V
Monoceros
NGC 2254
Open cluster
—
8303 ly
9.10 V
Monoceros
NGC 2259
Open cluster
—
9193 ly
10.80 V
Monoceros
NGC 2260
Open cluster
—
—
—
Monoceros
NGC 2262
Open cluster
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12 947 ly
11.30 B
Monoceros
NGC 2265
Open cluster
—
—
—
Gemini
NGC 2266
Open cluster
—
10 808 ly
9.50 V
Gemini
NGC 2269
Open cluster
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6986 ly
10.00 V
Monoceros
NGC 2270
Open cluster
—
—
—
Monoceros
NGC 2281
Open cluster
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1694 ly
5.40 V
Auriga
NGC 2286
Open cluster
—
7487 ly
7.50 V
Monoceros
NGC 2299
Open cluster
—
3934 ly
8.90 V
Monoceros
NGC 2304
Open cluster
—
13 182 ly
10.00 V
Gemini
NGC 2306
Open cluster
—
—
—
Monoceros
NGC 2309
Open cluster
—
7733 ly
10.50 V
Monoceros
NGC 231
Open cluster
—
—
12.87 V
Tucana
NGC 2311
Open cluster
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6642 ly
9.60 V
Monoceros
NGC 2312
Open cluster
—
—
—
Monoceros
NGC 2318
Open cluster
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4380 ly
—
Canis Major
NGC 2319
Open cluster
—
—
11.85 V
Monoceros
NGC 2324
Open cluster
—
14 813 ly
8.40 V
Monoceros
NGC 2331
Open cluster
—
—
8.50 V
Gemini
NGC 2335
Open cluster
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5316 ly
7.20 V
Monoceros
NGC 2338
Open cluster
—
—
—
Monoceros
NGC 2343
Open cluster
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3517 ly
6.70 V
Monoceros
NGC 2345
Open cluster
—
8653 ly
7.70 V
Canis Major
NGC 2348
Open cluster
—
—
—
Volans
NGC 2349
Open cluster
—
—
—
Monoceros
NGC 2351
Open cluster
—
—
—
Monoceros
NGC 2352
Open cluster
—
—
—
Canis Major
NGC 2353
Open cluster
—
3860 ly
7.10 V
Monoceros
NGC 2354
Open cluster
—
4170 ly
6.50 V
Canis Major
NGC 2355
Open cluster
—
6203 ly
9.70 V
Gemini
NGC 2358
Open cluster
—
2991 ly
—
Canis Major
NGC 2362
Open cluster
—
4229 ly
4.10 V
Canis Major
NGC 2364
Open cluster
—
—
—
Monoceros
NGC 2367
Open cluster
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7692 ly
7.90 V
Canis Major
NGC 2368
Open cluster
—
—
11.80 V
Monoceros
NGC 2374
Open cluster
—
4133 ly
8.00 V
Canis Major
NGC 2383
Open cluster
—
10 403 ly
8.40 V
Canis Major
NGC 2384
Open cluster
—
—
7.40 V
Canis Major
NGC 2394
Open cluster
—
—
—
Canis Minor
NGC 2395
Open cluster
—
—
8.00 V
Gemini
NGC 2396
Open cluster
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4781 ly
7.40 V
Puppis
NGC 2401
Open cluster
—
14 026 ly
12.60 V
Puppis
NGC 2408
Open cluster
—
—
—
Camelopardalis
NGC 2409
Open cluster
—
—
7.30 V
Puppis
NGC 241
Open cluster
—
—
—
Tucana
NGC 2413
Open cluster
—
—
—
Puppis
NGC 2414
Open cluster
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17 121 ly
7.90 V
Puppis
NGC 242
Open cluster
—
—
12.10 B
Tucana
NGC 2420
Open cluster
—
8326 ly
8.30 V
Gemini
NGC 2421
Open cluster
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8764 ly
8.30 V
Puppis
NGC 2423
Open cluster
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3036 ly
6.70 V
Puppis
NGC 2425
Open cluster
—
11 417 ly
—
Puppis
NGC 2428
Open cluster
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4435 ly
—
Puppis
NGC 2430
Open cluster
—
—
—
Puppis
NGC 2432
Open cluster
—
6250 ly
10.20 V
Puppis
NGC 2439
Open cluster
—
12 493 ly
6.90 V
Puppis
NGC 2448
Open cluster
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3596 ly
—
Puppis
NGC 2451
Open cluster
—
—
9.50 V
Puppis
NGC 2453
Open cluster
—
13 921 ly
8.30 V
Puppis
NGC 2455
Open cluster
—
10 087 ly
10.20 V
Puppis
NGC 2459
Open cluster
—
—
—
Canis Minor
NGC 2477
Open cluster
—
4700 ly
5.80 V
Puppis
NGC 2479
Open cluster
—
4982 ly
9.60 V
Puppis
NGC 2482
Open cluster
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4353 ly
7.30 V
Puppis
NGC 2483
Open cluster
—
—
7.60 V
Puppis
NGC 2489
Open cluster
—
6597 ly
7.90 V
Puppis
NGC 2506
Open cluster
—
10 158 ly
7.60 V
Monoceros
NGC 2509
Open cluster
—
8314 ly
9.30 V
Puppis
NGC 2516
Open cluster
—
1334 ly
3.80 V
Carina
NGC 2520
Open cluster
—
2084 ly
6.50 V
Puppis
NGC 2533
Open cluster
—
9122 ly
7.60 V
Puppis
NGC 2539
Open cluster
—
4166 ly
6.50 V
Puppis
NGC 2546
Open cluster
—
3068 ly
6.30 V
Puppis
NGC 2547
Open cluster
—
1263 ly
4.70 V
Vela
NGC 256
Open cluster
—
—
12.50 V
Tucana
NGC 2567
Open cluster
—
5710 ly
7.40 V
Puppis
NGC 2568
Open cluster
—
—
—
Puppis
NGC 2571
Open cluster
—
4287 ly
7.00 V
Puppis
NGC 2580
Open cluster
—
14 596 ly
9.70 V
Puppis
NGC 2587
Open cluster
—
10 078 ly
9.20 V
Puppis
NGC 2588
Open cluster
—
14 307 ly
11.80 V
Puppis
NGC 2609
Open cluster
—
—
—
Carina
NGC 2627
Open cluster
—
5925 ly
8.40 V
Pyxis
NGC 2635
Open cluster
—
19 138 ly
11.20 V
Pyxis
NGC 2645
Open cluster
—
5912 ly
7.32 V
Vela
NGC 265
Open cluster
—
—
12.17 V
Tucana
NGC 2658
Open cluster
—
14 452 ly
9.20 V
Pyxis
NGC 2659
Open cluster
—
6783 ly
8.60 V
Vela