Collinder catalogue
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The Collinder catalogue is a catalogue of 471 open clusters compiled by Swedish astronomer Per Collinder. It was published in 1931 as an appendix to Collinder's paper On structural properties of open
Collinder 399, a prominent asterism in the constellation Vulpecula.
Open cluster
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An open cluster is a type of star cluster made of tens to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. More than 1,100 open clusters have be
Collinder catalogue
…The Collinder catalogue is a catalogue of 471 open clusters compiled by Swedish astronomer Per Collinder. It was published in 1931 as an appendix to Collinder's paper On structural properties of open galactic…
The Pleiades is among the nearest open clusters to Earth
Mosaic of 30 open clusters discovered from VISTA's data. The open clusters were hidden by the dust in the Milky Way. Credit ESO.
The star cluster NGC 3590
NGC 265, an open star cluster in the Small Magellanic Cloud