Messier 45

URI: https://gptkb.org/entity/Messier_45
GPTKB entity
Statements (52)
Predicate Object
gptkbp:instanceOf gptkb:open_cluster
gptkbp:age about 100 million years
gptkbp:alsoKnownAs gptkb:Seven_Sisters
gptkb:astronomy
gptkbp:angularSize about 110 arcminutes
gptkbp:apparentMagnitude 1.6
gptkbp:bestViewedIn November
gptkbp:brightestStar gptkb:Aldebaran
gptkbp:cataloguedIn gptkb:NGC_1432
gptkb:Caldwell_41
gptkb:Charles_Messier
gptkb:Messier_Catalogue
gptkbp:catalogueNumber gptkb:M45
gptkbp:clusterType loose open cluster
gptkbp:contains gptkb:Titan
gptkb:Electra
gptkb:Taygeta
gptkb:Asterope
gptkb:Alcyone
gptkb:Celaeno
gptkb:Merope
gptkb:Pleione
marina
gptkbp:culturalSignificance important in Greek mythology
important in Japanese culture (Subaru)
important in Maori culture (Matariki)
important in Native American cultures
gptkbp:declination +24° 07′ 00″
gptkbp:discoveredBy known since antiquity
gptkbp:distanceFromEarth about 444 light years
gptkbp:firstPhotographedBy gptkb:Paul_Henry_and_Prosper_Henry
gptkbp:hasBrownDwarfs yes
gptkbp:hasExoplanet no confirmed exoplanets
gptkbp:hasNebulosity yes
gptkbp:hasViewOf both hemispheres
gptkbp:hasWhiteDwarfs yes
https://www.w3.org/2000/01/rdf-schema#label Messier 45
gptkbp:locatedIn constellation Taurus
gptkbp:nestType gptkb:planetary_nebula
gptkbp:notableFor reflection nebulae
blue reflection nebulae
brightest open cluster in the sky
gptkbp:observedBy gptkb:Galileo_Galilei
gptkbp:partOf gptkb:Local_Bubble
gptkbp:properMotionRA yes
gptkbp:rating over 1,000
gptkbp:rightAscension 03h 47m 24s
gptkbp:spectralType mostly B-type stars
gptkbp:variableStar yes
gptkbp:visibleToNakedEye yes
gptkbp:bfsParent gptkb:astronomy
gptkbp:bfsLayer 4