SAO 112740

E545067

SAO 112740 is the Smithsonian Astrophysical Observatory catalog designation for Bellatrix, a prominent blue giant star in the constellation Orion.

All labels observed (1)

Label Occurrences
SAO 112740 canonical 5

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf star
formsPartOf figure of Orion (left shoulder)
hasAge_Myr ~25
hasAlternativeName Bellatrix
Gamma Orionis
hasApparentMagnitudeV 1.64
hasBayerDesignation Gamma Orionis
hasBDDesignation +06 919
hasCatalogDesignation SAO 112740
hasColor blue
hasDeclination +06° 20′ 58.931″
hasDistanceFromEarth_ly ~250
hasDistanceFromEarth_pc ~77
hasEffectiveTemperature_K ~22000
hasEquinox J2000
hasFlamsteedDesignation 24 Orionis
hasGalacticPopulation Orion OB1 association (probable former member)
hasHDDesignation HD 35468
hasHIPDesignation HIP 25336
hasHRDesignation HR 1790
hasLuminosity_solarLuminosity ~920
hasLuminosityClass III
hasMass_solarMass ~8.6
hasMetallicity_FeH approximately solar
hasNameOrigin Latinized from Arabic "al-najīd" (the conqueror/warrior)
hasParallax_mas 12.92
hasProperMotionDec_masPerYr −12.46
hasProperMotionRA_masPerYr −8.75
hasRadialVelocity_kmPerSec ~+18
hasRadius_solarRadius ~5.8
hasRankByBrightnessInOrion third brightest star in Orion
hasRightAscension 05h 25m 07.8633s
hasRotationalVelocity_kmPerSec ~220
hasSpectralClass B
hasSpectralType B2III
hasStellarClassification blue giant star
hasSurfaceGravity_logg ~3.6
hasVariableStatus suspected variable star
isCulturalAsterismMemberOf Orion’s Belt and shoulders pattern
linked to: Orion constellation
isIncludedInCatalog Bright Star Catalogue
Henry Draper Catalogue
Hipparcos Catalogue
isInConstellation Orion
isLocatedInHemisphere celestial equator region
isOneOfBrightestStarsIn Orion
isPartOfCatalog Smithsonian Astrophysical Observatory Star Catalog
isSpectralStandardFor B2III
isVisibleTo naked eye

How these facts were elicited

Referenced by (5)

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

Bellatrix hasCatalogEntry SAO 112740
HD 36486 hasSAODesignation SAO 112740
HIP 25336 hasSAOIdentifier SAO 112740
HD 35468 hasSAODesignation SAO 112740
SAO 112740 hasCatalogDesignation SAO 112740