star Sterope I

E145298

Star Sterope I is a relatively faint star in the Pleiades star cluster in the constellation Taurus, associated with the mythological figure Sterope.

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All labels observed (3)

Label Occurrences
star Asterope I 1
star Sterope I canonical 1
star Sterope II 1

Statements (47)

Predicate Object
instanceOf astronomical object
star
associatedWith Greek mythology
Sterope
belongsToOpenCluster Pleiades
hasAge about 100 million years
hasAlternativeName 21 Tauri
Asterope
surface form: Asterope I

BD+23 455
HD 23850
HIP 17954
HR 1178
hasApparentMagnitudeV about 5.76
hasCatalogDesignation Bright Star Catalogue
surface form: Bright Star Catalogue HR 1178

Flamsteed designation 21 Tauri
Henry Draper Catalogue
surface form: Henry Draper Catalogue HD 23850

Hipparcos Catalogue HIP 17954
hasColorIndexBMinusV about −0.06
hasConstellationAbbreviation Tau
hasCulturalSignificanceIn Greek astronomy
hasDeclination +24° (approx)
hasDistanceFromEarth about 135 parsecs
about 440 light-years
hasEffectiveTemperature about 12000 K
hasEquinox J2000.0
hasGalacticPopulation thin disk
hasLuminosity about 100 times solar luminosity
hasMass about 3 solar masses
hasParallax about 7.4 mas
hasProperMotionInDec about −45 mas/yr
hasProperMotionInRA about +20 mas/yr
hasRadialVelocity about +6 km/s
hasRadius about 3 solar radii
hasRightAscension 03h 45m (approx)
hasSpectralType B8V
isBrighterThan Sterope
surface form: Sterope II
isComponentOf double star Sterope
isHotterThan Sun
isInNorthernCelestialHemisphere yes
isMoreLuminousThan Sun
isMoreMassiveThan Sun
isPartOfAsterism Pleiades
isRelativelyFaintMemberOf Pleiades
isVisibleToNakedEye yes
locatedInConstellation Taurus
memberOf Pleiades
surface form: Pleiades star cluster
orbitsInMilkyWay yes

Referenced by (3)

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

Sterope celestialAssociation star Sterope I
Sterope celestialAssociation star Sterope I
this entity surface form: star Sterope II
Asterope associatedWith star Sterope I
this entity surface form: star Asterope I