HIP 26311
E545063
HIP 26311 is the Hipparcos catalog designation for Alnilam, the bright blue supergiant star forming the central point of Orion’s Belt.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Hipparcos catalog star
ⓘ
star ⓘ |
| absoluteMagnitudeV | about −6.4 ⓘ |
| age_Myr | about 5.7 ⓘ |
| alsoKnownAs |
Alnilam
NERFINISHED
ⓘ
Epsilon Orionis NERFINISHED ⓘ |
| apparentMagnitudeV | 1.69 ⓘ |
| belongsToAssociation | Orion OB1 association NERFINISHED ⓘ |
| belongsToSubgroup | Orion OB1b subgroup NERFINISHED ⓘ |
| catalogIdentifier | HIP 26311 NERFINISHED ⓘ |
| color | blue ⓘ |
| constellation | Orion NERFINISHED ⓘ |
| declination_J2000 | −01° 12′ 07″ ⓘ |
| distanceFromEarth_ly | about 2000 ⓘ |
| distanceFromEarth_pc | about 600 ⓘ |
| effectiveTemperature_K | about 27500 ⓘ |
| evolutionaryStage | blue supergiant ⓘ |
| futureEvolution | likely core-collapse supernova ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasBayerDesignation | ε Orionis NERFINISHED ⓘ |
| hasBDDesignation | +−01° 969 ⓘ |
| hasFlamsteedDesignation | 46 Orionis ⓘ |
| hasHDDesignation | HD 37128 NERFINISHED ⓘ |
| hasHRDesignation | HR 1852 NERFINISHED ⓘ |
| hasProperMotion | yes ⓘ |
| hasSAODesignation | SAO 132444 NERFINISHED ⓘ |
| hasVariability | yes ⓘ |
| hemisphereVisibility | both hemispheres ⓘ |
| isBrightStar | yes ⓘ |
| isNakedEyeVisible | yes ⓘ |
| isPartOf | Orion's Belt NERFINISHED ⓘ |
| isPrimaryComponentOf | Orion's Belt asterism NERFINISHED ⓘ |
| luminosity_solar | about 375000 ⓘ |
| luminosityClass | Ia ⓘ |
| mass_solar | about 30 ⓘ |
| metallicity_FeH | approximately solar ⓘ |
| parallax_mas | about 1.8 ⓘ |
| positionInAsterism | central star of Orion's Belt ⓘ |
| properMotionDec_masPerYr | about 0.6 ⓘ |
| properMotionRA_masPerYr | about 1.1 ⓘ |
| radialVelocity_kmPerSec | about 27 ⓘ |
| radius_solar | about 32 ⓘ |
| rankByBrightnessInOrion | among the brightest stars in Orion ⓘ |
| rightAscension_J2000 | 05h 36m 12.8s ⓘ |
| spectralClass | B0 ⓘ |
| spectralType | B0Ia ⓘ |
| variableType | Alpha Cygni variable ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.