Star clusters
935 CATALOGUEDStars born together and still travelling together — loose open groups, or ancient globes of hundreds of thousands.
PRIMER — 60 SECONDS
Open versus globular
Open clusters are young, sparse, and in the galactic disk; they disperse within a few hundred million years. Globulars are dense, spherical, and nearly as old as the galaxy.
Why they matter
Every star in a cluster is the same age and distance, which makes clusters the calibration bench for almost everything known about stellar evolution.
[
THE FAMOUS ONES
] 5 ENTRIESNAME
CLASS
MASS
DISTANCE
MAG
CONSTELLATION
Pleiades★
Open cluster
—
444.0 ly
1.20 V
Taurus
h Persei Cluster★
Open cluster
—
7620 ly
3.70 V
Perseus
47 Tuc Cluster★
Globular cluster
—
15 000 ly
4.09 V
Tucana
Omega Centauri★
Globular cluster
—
17 700 ly
5.33 V
Centaurus
Hercules Globular Cluster★
Globular cluster
—
22 200 ly
5.80 V
Hercules
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 6633
Open cluster
—
1277 ly
4.60 V
Ophiuchus
NGC 6638
Globular cluster
—
26 745 ly
9.68 V
Sagittarius
NGC 6639
Open cluster
—
—
—
Scutum
NGC 6642
Globular cluster
—
24 788 ly
10.24 V
Sagittarius
NGC 6645
Open cluster
—
5706 ly
8.50 V
Sagittarius
NGC 6647
Open cluster
—
—
8.00 V
Sagittarius
NGC 6649
Open cluster
—
6578 ly
8.90 V
Scutum
NGC 6652
Globular cluster
—
30 659 ly
9.75 V
Sagittarius
NGC 6659
Open cluster
—
—
—
Hercules
NGC 6664
Open cluster
—
6562 ly
7.80 V
Scutum
NGC 6682
Open cluster
—
—
—
Scutum
NGC 6683
Open cluster
—
—
9.40 V
Scutum
NGC 6698
Open cluster
—
—
—
Sagittarius
NGC 6704
Open cluster
—
7039 ly
9.20 V
Scutum
NGC 6709
Open cluster
—
3472 ly
6.70 V
Aquila
NGC 6712
Globular cluster
—
21 852 ly
8.69 V
Scutum
NGC 6714
Stellar association
—
—
—
Draco
NGC 6716
Open cluster
—
2274 ly
7.50 V
Sagittarius
NGC 6717
Globular cluster
—
23 157 ly
10.35 V
Sagittarius
NGC 6723
Globular cluster
—
28 049 ly
—
Sagittarius
NGC 6724
Open cluster
—
—
—
Aquila
NGC 6728
Open cluster
—
5776 ly
—
Scutum
NGC 6735
Open cluster
—
7332 ly
—
Aquila
NGC 6737
Open cluster
—
—
—
Sagittarius
NGC 6738
Stellar association
—
—
8.30 V
Aquila
NGC 6743
Open cluster
—
—
8.20 B
Lyra
NGC 6749
Globular cluster
—
25 114 ly
12.40 V
Aquila
NGC 6752
Globular cluster
—
12 720 ly
6.28 V
Pavo
NGC 6755
Open cluster
—
8060 ly
7.50 V
Aquila
NGC 6756
Open cluster
—
10 504 ly
10.60 V
Aquila
NGC 6760
Globular cluster
—
23 809 ly
9.78 V
Aquila
NGC 6773
Open cluster
—
—
—
Aquila
NGC 6774
Open cluster
—
—
—
Sagittarius
NGC 6775
Open cluster
—
—
—
Aquila
NGC 6791
Open cluster
—
14 777 ly
9.50 V
Lyra
NGC 6793
Open cluster
—
1920 ly
—
Vulpecula
NGC 6795
Open cluster
—
—
—
Aquila
NGC 6800
Open cluster
—
3321 ly
—
Vulpecula
NGC 6802
Open cluster
—
9647 ly
8.80 V
Vulpecula
NGC 6811
Open cluster
—
3628 ly
6.80 V
Cygnus
NGC 6815
Stellar association
—
—
—
Vulpecula
NGC 6827
Open cluster
—
24 771 ly
—
Vulpecula
NGC 6828
Open cluster
—
—
—
Aquila
NGC 6830
Open cluster
—
7199 ly
7.90 V
Vulpecula
NGC 6832
Open cluster
—
—
—
Cygnus
NGC 6834
Open cluster
—
10 850 ly
7.80 V
Cygnus
NGC 6837
Open cluster
—
—
—
Aquila
NGC 6840
Open cluster
—
—
—
Aquila
NGC 6843
Open cluster
—
—
—
Aquila
NGC 6846
Open cluster
—
27 725 ly
14.20 V
Cygnus
NGC 6856
Open cluster
—
—
—
Cygnus
NGC 6858
Open cluster
—
—
—
Aquila
NGC 6866
Open cluster
—
4561 ly
7.60 V
Cygnus
NGC 6871
Open cluster
—
6005 ly
5.20 V
Cygnus
NGC 6873
Open cluster
—
—
—
Sagitta
NGC 6874
Stellar association
—
—
—
Cygnus
NGC 6882
Open cluster
—
—
14.10 V
Vulpecula
NGC 6883
Open cluster
—
—
8.00 V
Cygnus
NGC 6895
Open cluster
—
—
—
Cygnus
NGC 6904
Open cluster
—
—
—
Vulpecula
NGC 6910
Open cluster
—
5680 ly
7.40 V
Cygnus
NGC 6934
Globular cluster
—
49 576 ly
9.75 V
Delphinus
NGC 6938
Open cluster
—
—
—
Vulpecula
NGC 6939
Open cluster
—
6094 ly
7.80 V
Cepheus
NGC 6940
Open cluster
—
3342 ly
6.30 V
Vulpecula
NGC 6950
Open cluster
—
—
—
Delphinus
NGC 6989
Open cluster
—
—
—
Cygnus
NGC 6991
Open cluster
—
1818 ly
—
Cygnus
NGC 6996
Stellar association
—
—
—
Cygnus
NGC 7006
Globular cluster
—
132 746 ly
10.46 V
Delphinus
NGC 7011
Open cluster
—
—
—
Cygnus
NGC 7024
Open cluster
—
3856 ly
—
Cygnus
NGC 7031
Open cluster
—
4451 ly
9.10 V
Cygnus
NGC 7036
Open cluster
—
—
—
Pegasus
NGC 7037
Open cluster
—
—
—
Cygnus
NGC 7039
Open cluster
—
2467 ly
7.60 V
Cygnus
NGC 7044
Open cluster
—
10 814 ly
12.00 V
Cygnus
NGC 7050
Open cluster
—
—
—
Cygnus
NGC 7055
Open cluster
—
—
—
Cepheus
NGC 7058
Open cluster
—
1182 ly
—
Cygnus
NGC 7062
Open cluster
—
7642 ly
8.30 V
Cygnus
NGC 7063
Open cluster
—
2166 ly
7.00 V
Cygnus
NGC 7067
Open cluster
—
17 940 ly
9.70 V
Cygnus
NGC 7071
Stellar association
—
—
—
Cygnus
NGC 7082
Open cluster
—
4303 ly
7.20 V
Cygnus
NGC 7084
Open cluster
—
—
—
Pegasus
NGC 7086
Open cluster
—
5272 ly
8.40 V
Cygnus
NGC 7093
Open cluster
—
—
—
Cygnus
NGC 7127
Open cluster
—
—
—
Cygnus
NGC 7128
Open cluster
—
11 260 ly
9.70 V
Cygnus
NGC 7142
Open cluster
—
7751 ly
9.30 V
Cepheus
NGC 7160
Open cluster
—
3022 ly
6.10 V
Cepheus
NGC 7175
Open cluster
—
—
—
Cygnus
NGC 7193
Open cluster
—
—
—
Pegasus
NGC 7209
Open cluster
—
3841 ly
7.70 V
Lacerta
NGC 7226
Open cluster
—
15 265 ly
9.60 V
Cepheus
NGC 7234
Open cluster
—
11 308 ly
7.70 V
Cepheus
NGC 7243
Open cluster
—
2848 ly
6.40 V
Lacerta
NGC 7245
Open cluster
—
10 786 ly
9.20 V
Lacerta
NGC 7261
Open cluster
—
10 639 ly
8.40 V
Cepheus