HD 108248
E533148
HD 108248 is the Henry Draper Catalogue designation for Alpha Crucis, the brightest star in the Southern Cross constellation.
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
B-type star system
ⓘ
multiple star system ⓘ star system ⓘ |
| age_Myr | about 10 ⓘ |
| alsoKnownAs |
Acrux
NERFINISHED
ⓘ
Alpha Crucis NERFINISHED ⓘ α Crucis NERFINISHED ⓘ |
| apparentMagnitudeV | 1.25 ⓘ |
| appearsOnFlagOf |
Australia
NERFINISHED
ⓘ
Brazil (as part of Crux) ⓘ New Zealand NERFINISHED ⓘ Papua New Guinea NERFINISHED ⓘ |
| belongsToStellarPopulation | young disk population ⓘ |
| catalogName | Henry Draper Catalogue NERFINISHED ⓘ |
| colorIndexBminusV | -0.24 ⓘ |
| constellation | Crux NERFINISHED ⓘ |
| declination | −63° 05′ 56″ ⓘ |
| distanceFromEarth_ly | about 320 ⓘ |
| distanceFromEarth_pc | about 98 ⓘ |
| effectiveTemperature_K | about 28,000 (primary component) ⓘ |
| equatorialHemisphere | southern celestial hemisphere ⓘ |
| galacticLatitude_deg | -0.60 ⓘ |
| galacticLongitude_deg | 300.13 ⓘ |
| hasCloseSpectroscopicPair | true ⓘ |
| hasComponent |
Alpha Crucis A
NERFINISHED
ⓘ
Alpha Crucis B NERFINISHED ⓘ Alpha Crucis C NERFINISHED ⓘ |
| hasStrongStellarWinds | true ⓘ |
| isBinary | true ⓘ |
| isBrightestStarIn | Crux NERFINISHED ⓘ |
| isFirstMagnitudeStar | true ⓘ |
| isNakedEyeVisible | true ⓘ |
| isNavigationStar | true ⓘ |
| isOnFlagOfCountry | true ⓘ |
| isPartOfAsterism | Southern Cross NERFINISHED ⓘ |
| isXRaySource | true ⓘ |
| luminositySolar | about 25,000 (primary component) ⓘ |
| massSolar |
about 15 (secondary close component)
ⓘ
about 18 (primary component) ⓘ |
| orbitalPeriod_days | about 76 (inner pair) ⓘ |
| parallax_mas | 10.13 ⓘ |
| parallaxError_mas | 0.15 ⓘ |
| properMotionDec_masPerYr | -14.82 ⓘ |
| properMotionRA_masPerYr | -35.83 ⓘ |
| radialVelocity_kmPerSec | +16 ⓘ |
| radiusSolar | about 7.8 (primary component) ⓘ |
| rightAscension | 12h 26m 35.9s ⓘ |
| spectralType | B0.5 IV + B1 V ⓘ |
| usedForSouthernHemisphereNavigation | true ⓘ |
| visualCompanionMagnitude | 4.8 ⓘ |
| visualCompanionSeparation_arcsec | about 4 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.