The Messier Open Cluster Objects
In Messier Number Order
For More Information and to View Images, Click on the Messier #
Messier#
Common Name
Object Type
Constellation*
M6
Butterfly Cluster
Open Cluster
Scorpius
M7
Open Cluster
Scorpius
M11
Wild Duck Cluster
Open Cluster
Scutum
M16
Ghost, Eagle, or Star Queen Nebula
Emission Nebula & Open Cluster
Serpens
M17
Omega, Horseshoe, or Swan Nebula
Emission Nebula & Open Cluster
Sagittarius
M18
Black Swan
Open Cluster
Sagittarius
M20
Trifid Nebula
Emission Nebula, Reflection Nebula, & Open Cluster
Sagittarius
M21
Open Cluster
Sagittarius
M23
Open Cluster
Sagittarius
M24
Small Sagittarius
Star Cloud
Star Cloud
Sagittarius
M25
Open Cluster
Sagittarius
M26
Open Cluster
Scutum
M29
Open Cluster
Cygnus
M34
Open Cluster
Perseus
M35
Open Cluster
Gemini
M36
Open Cluster
Auriga
M37
Open Cluster
Auriga
M38
Open Cluster
Auriga
M39
Open Cluster
Cygnus
M41
Little Beehive Cluster
Open Cluster
Canis Major
M44
Beehive
Open Cluster
Cancer
M45
Pleiades or Seven Sisters Cluster
Open Cluster
Taurus
M46
Open Cluster
Puppis
M47
Open Cluster
Puppis
M48
Open Cluster
Hydra
M50
Open Cluster
Monoceros
M52
Scorpion Cluster
Open Cluster
Cassiopeia
M67
Open Cluster
Cancer
M73
Open Cluster
Aquarius
M93
Open Cluster
Puppis
M103
Open Cluster
Cassiopeia
* Sky cartography made using
Home Planet
software.
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