Double Cluster

E100905

Milky Way star cluster deep-sky object open star cluster pair

The Double Cluster is a striking pair of young, massive open star clusters in the constellation Perseus, often observed together as a rich, densely packed stellar grouping in the Milky Way.

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All labels observed (2)

Label	Occurrences
Double Cluster canonical	3
Double Cluster in Perseus	2

Statements (47)

Predicate	Object
instanceOf	Milky Way star cluster ⓘ deep-sky object ⓘ open star cluster pair ⓘ
age	~12.8 million years ⓘ ~14 million years ⓘ
angularSize	~60 arcminutes ⓘ
apparentMagnitudeV	3.7 ⓘ
appearsAs	nebulous patch to naked eye ⓘ
bestSeenIn	autumn ⓘ winter ⓘ
catalogDesignation	Caldwell 14 ⓘ Melotte 13 and Melotte 14 ⓘ Perseus constellation ⓘ surface form: h Persei and χ Persei
containsStarType	B-type stars ⓘ O-type stars ⓘ red supergiants ⓘ
declination	+57° 08′ ⓘ
distanceFromEarth	~2,300 parsecs ⓘ ~7,500 light-years ⓘ
hasApproximateStarCount	several hundred stars per cluster ⓘ
hasCommonName	Double Cluster self-linksurface differs ⓘ surface form: Double Cluster in Perseus
hasComponent	NGC 869 ⓘ NGC 884 ⓘ
hasDiscoveryStatus	known since antiquity ⓘ
hasGalacticLatitude	+4.3 degrees (approximate) ⓘ
hasGalacticLongitude	134.6 degrees (approximate) ⓘ
hasIntegratedSpectralType	B-type dominated ⓘ
hasSpectralDominance	blue-white ⓘ
isMassiveCluster	true ⓘ
isNear	Cassiopeia ⓘ surface form: constellation Cassiopeia
isPartOf	Perseus constellation ⓘ surface form: Perseus constellation region
isPopularTargetFor	amateur astronomers ⓘ astrophotographers ⓘ
isRichCluster	true ⓘ
isUsedForStudyOf	massive star formation ⓘ open cluster dynamics ⓘ stellar evolution ⓘ
isVisibleFrom	Northern Hemisphere ⓘ
isYoungCluster	true ⓘ
liesInDirectionOf	Perseus OB2 association ⓘ surface form: Perseus OB association
locatedIn	Perseus Arm ⓘ
locatedInConstellation	Perseus ⓘ
locatedInGalaxy	Milky Way ⓘ
observedWith	binoculars ⓘ small telescopes ⓘ
rightAscension	02h 19m ⓘ
visibleToNakedEye	true ⓘ

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Orion Arm → contains → Double Cluster ⓘ

Double Cluster → hasCommonName → Double Cluster self-linksurface differs ⓘ

this entity surface form: Double Cluster in Perseus

Perseus constellation → contains → Double Cluster ⓘ

Perseus constellation → notableFor → Double Cluster ⓘ

Northern Celestial Hemisphere → contains → Double Cluster ⓘ

this entity surface form: Double Cluster in Perseus