Alpha Doradus
E481655
Alpha Doradus is a bright blue-white binary star system in the southern constellation Dorado, notable as its most luminous member.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Alpha Doradus B | 0 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
binary star system
ⓘ
stellar system ⓘ |
| absoluteMagnitudeV | about −1.9 ⓘ |
| apparentMagnitudeV | 3.27 ⓘ |
| bayerDesignation | Alpha Doradus NERFINISHED ⓘ |
| brightestStarInConstellation | Dorado NERFINISHED ⓘ |
| color | blue-white ⓘ |
| component |
Alpha Doradus A
NERFINISHED
ⓘ
Alpha Doradus B NERFINISHED ⓘ |
| constellation | Dorado NERFINISHED ⓘ |
| declination | −55° ⓘ |
| distanceFromEarth_ly | about 169 ⓘ |
| distanceFromEarth_pc | about 52 ⓘ |
| effectiveTemperature_K | about 11000 (primary) ⓘ |
| evolutionaryStage | giant star (primary) ⓘ |
| flamsteedDesignation | 7 Doradus NERFINISHED ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasCatalogEntry |
Bright Star Catalogue
NERFINISHED
ⓘ
Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| hasOrbitalMotion | yes ⓘ |
| hasVariability | yes ⓘ |
| hdNumber | HD 29305 NERFINISHED ⓘ |
| hemisphere | southern celestial hemisphere ⓘ |
| hipparcosNumber | HIP 21393 NERFINISHED ⓘ |
| hrNumber | HR 1544 NERFINISHED ⓘ |
| locatedIn |
Milky Way
ⓘ
southern sky ⓘ |
| luminosityMultipleOfSun | about 1000 (system) ⓘ |
| massMultipleOfSun |
about 2 (secondary)
ⓘ
about 4 (primary) ⓘ |
| metallicity_FeH | near solar ⓘ |
| notableFor |
blue-white color
ⓘ
brightest star in Dorado ⓘ ellipsoidal variability ⓘ |
| orbitalPeriod_days | about 12 ⓘ |
| parallax_mas | about 19.2 ⓘ |
| properMotionDec_masPerYr | about −6 ⓘ |
| properMotionRA_masPerYr | about +22 ⓘ |
| radialVelocity_kmPerSec | about +28 ⓘ |
| rightAscension | 04h 33m ⓘ |
| rotationalVelocity_kmPerSec | about 150 (primary) ⓘ |
| simbadId | alf Dor NERFINISHED ⓘ |
| spectralType |
A-type star
ⓘ
B9III ⓘ |
| variableStarType | ellipsoidal variable ⓘ |
| visibleToNakedEye | yes ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Dorado