Star clusters

Star clusters

Facts and images about the gravitationally-bound collections of stars known as star clusters, including globular clusters and open clusters.

M44 - Behive Cluster ("Praesepe") in Cancer by Bill McSorley, Leeds, UK. Equipment: SW 150P Newtonian, HEQ5Pro Mount, QHY8L cooled ccd.

Beehive Cluster

Facts about and images of M44, also known as the Beehive Cluster.

Located in the constellation of Pegasus, 35,000 lightyears away, M15 is one of the oldest-known globular clusters – dating back 12 billion years. Hubble captured the swarming hot blue and cooler golden stars that become more concentrated towards M15’s bright core. Credit: ESA, Hubble, NASA

Observing guide | Globular clusters

Globular clusters are some of the most beautiful objects to observe through a telescope. Discover the science of globulars and the best to see in the night sky.

M13, The Great Hercules Cluster Patrick Cosgrove, Honeoye Falls, New York, May 2022 Equipment: ZWO ASI2600MM-Pro camera, Astro-Physics 130mm EDT apo scope, IOptron CEM60 mount

Gallery | Hercules Globular Cluster

M13, the Hercules Globular Cluster, is perhaps the most famous of all globulars.

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Globular cluster Omega Centauri is thought to contain about ten million stars. These ancient objects may not be as old as once thought. Credit: ESO

Gallery | Omega Centauri globular cluster

Facts about the Omega Centauri globular cluster, one of the oldest objects in the Universe.

The Pleiades Stephen Tolley, Liskeard, Cornwall, 19 January 2020 Equipment: Nikon D600 DSLR, Tamron 150-600mm lens, Celestron AVX mount

Gallery | The Pleiades

A guide to M45, also known as the Pleiades, and images of the famous open star cluster.

Messier 7 by Luis Fernando Parmegiani, São Paulo, Brazil. Equipment: GSO RC8", NEQ6 Skywatcher, QHY9M, RGB filters

Gallery | Open star clusters

A guide to open star clusters and images captured by astrophotographers.

M35 and NGC 2158 by Jaspal Chadha, London, UK. Equipment: Skywatcher Espirt 100ED, QSI 690 CCD, Ioptron CEM60 Mount, LRGB.

Gallery | Messier 35 and NGC 2158

A guide to M35 and NGC 2158, two open star clusters that are much further away from each other than they might appear.

M39 by William McSorley, Leeds, UK. Equipment: SW 150P Reflector, EQ5 GoTo Mount, QHY8L cooled CCD, SW ST80, Philips SPC900 webcam.

Gallery | Messier 39

Facts about and images of M39, the open star cluster in Cygnus.

M37 Open Cluster by Ron Brecher, Guelph, Ontario, Canada. Equipment: SBIG STL-11000M, Baader RGB filters, 10" f/6.8 ASA astrograph, Paramount MX, STL-11000's internal guider, FocusMax.

Gallery | Messier 37

Facts about and images of the open cluster M37 in Auriga.

M34 by Jaspal Chadha, London, UK. Equipment: TAK 130, iOptron CEM60 Mount, QSI 690 CCD

Gallery | Messier 34

A guide to open star cluster M34 and images of the deep-sky target.

NGC457 - The ET Cluster in Cassiopeia by Bill McSorley, Leeds, UK. Equipment: SW 150P Newtonian, EQ5 GoTo Mount, QHY8L cooled ccd.

Gallery | Owl Cluster

A guide to NGC 457, also known as the Owl Cluster, and images of the target captured by amateur astrophotographers.

M3 in Canes Venatici. Credit: Manfred Wasshuber / CCDGuide.com

Gallery | Messier 3

Facts about and images of Messier 3, one of the most famous globular clusters in the night sky.

Double Cluster by Jaspal, London, UK. Equipment: Takahashi FSQ85, Ioptron 45 pro, QHY9s CCD, Chroma Filters.

Gallery | Perseus Double Cluster

Images of the Perseus Double Cluster and advice on how to observe it.

NGC 7789 Caroline's Rose by Mark Griffith, Swindon, Wiltshire, UK. Equipment: Teleskop service 12" Richey-Chretien telescope, Skywatcher EQ8 mount, Atik 383L+ camera, Astronomik LRGB filters, Hutech IDAS light pollution filter, Astro physics 0.67 reducer.

Gallery | Caroline's Rose Cluster

Facts about NGC 7789, also known as Caroline's Rose.

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