What is an Open Cluster?

Open clusters are young, loosely gravitationally bound collections of stars. Some are supernova remnants.  Some, like the Stargate cluster below, are chance alignments of stars at different distances.

Double Cluster in Perseus

Double Cluster in Perseus

C9.25 SCT

NGC7789 Caroline's Rose

NGC7789  Caroline's Rose

TEC140ED Refractor

The Stargate Cluster

C9.25/Hyperstar


Jewel Box in Crux

Meade 10" ACF (Namibia)

Southern Hemisphere Milky Way

Sony A7iii (Namibia)

NGC 2169 "37" Cluster

NGC 2169 "37" Cluster

TEC 140ED APO

Coathanger Cluster

Coathanger Cluster

Esprit 100ED APO

Pleiades M45

Pleiades M45

TEC 140ED APO

NGC 2301

TEC 160FL APO

M44 The Beehive

TEC 160FL APO

Pakan's 3 Asterism

C9.25/Hyperstar

M67

TEC 160FL APO

Double Cluster in Perseus

TEC 160FL APO

Stargate Cluster and Sombrero Galaxy

C9.25/Hyperstar