Share this entry

Share this page

open cluster

Syllabification: o·pen clus·ter

Definition of open cluster in English:

noun

Astronomy
A relatively loose grouping of stars.
Example sentences
  • For instance, you can activate constellation lines, labels, define the types of objects you would like to see (galaxies, open clusters, double stars, etc.) or the minimum display brightness for these objects.
  • They're located about 15° west-northwest of the bright red star Aldebaran, which in turn is at the end of one of the arms of a V-shaped asterism, the Hyades open cluster, which points southwest.
  • Notice that this map, in particular, nicely illustrates that most of the stars in Ursa Major comprise a nearly-dispersed open cluster - a ‘constellation’ in the truest sense.

Definition of open cluster in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day tenebrous
Pronunciation: ˈtenəbrəs
adjective
dark; shadowy or obscure