HD 29139

E140929

HD 29139 is the bright orange giant star Aldebaran, the prominent "eye" of the constellation Taurus and one of the brightest stars in the night sky.

All labels observed (1)

Label Occurrences
HD 29139 canonical 7

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf K-type giant star
giant star
red giant star
star
hasAbsoluteMagnitudeV -0.63
hasAge about 6.4 billion years
hasApparentMagnitudeRangeV 0.75–0.95
hasApparentMagnitudeV 0.85
hasBayerDesignation Alpha Tauri
hasBDDesignation +16 629
hasColorIndexBminusV 1.54
hasConstellation Taurus
hasCulturalRole represents the eye of the Bull in Taurus
hasDeclination +16° 30′ 33″
hasDistanceFromEarth about 20 parsecs
about 65 light-years
hasEffectiveTemperature about 3900 K
hasEpoch J2000.0
hasExoplanetCandidate Aldebaran planetary system
surface form: Aldebaran b (disputed)
hasFlamsteedDesignation 87 Tauri
hasGalacticLatitude -20.52°
hasGalacticLongitude 180.97°
hasGalacticPopulation thin disk star
hasHenryDraperDesignation HD 29139 self-link
hasHipparcosDesignation HIP 21421
hasHRDesignation HR 1457
hasLuminosity about 400 times solar luminosity
hasMass about 1.1 solar masses
hasMetallicity[Fe/H] about -0.34
hasName Aldebaran
hasParallax 48.94 mas
hasProperMotionDec -188.94 mas/yr
hasProperMotionRA +62.78 mas/yr
hasRadialVelocity +54.2 km/s
hasRadius about 44 solar radii
hasRankByBrightness about 14th brightest star
hasRightAscension 04h 35m 55.2s
hasRotationalVelocity about 5 km/s
hasSAODesignation SAO 94027
hasSpectralType K5 III
hasSurfaceGravityLogg about 1.5
hasTraditionalNameOrigin Arabic al-dabarān (the follower)
hasVariabilityType LB (suspected)
isAsterismPartOf Hyades region (line-of-sight)
isEvolutionaryStage helium-burning red giant branch or clump giant
isMemberOf Aldebaran planetary system
surface form: Aldebaran system
isOneOf brightest stars in the night sky
isVariableStar suspected slow irregular variable

How these facts were elicited

Referenced by (7)

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

Aldebaran (foreground star, not a member) hdNumber HD 29139
subject surface form: Aldebaran
Alpha Tauri hdDesignation HD 29139
HR 1457 catalogDesignation HD 29139
HD 29139 hasHenryDraperDesignation HD 29139 self-link