Alpha Tucanae
E492364
Alpha Tucanae is the brightest star in the southern constellation Tucana, visible to the naked eye and used as a reference point in that region of the sky.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Alpha Tucanae B | 0 |
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
star
ⓘ
stellar companion ⓘ |
| absoluteMagnitudeV | about −0.3 ⓘ |
| age_Gyr | about 1.2 ⓘ |
| apparentMagnitudeV | 2.86 ⓘ |
| BayerDesignation |
Alpha Tucanae
NERFINISHED
ⓘ
α Tucanae NERFINISHED ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| binaryType | visual binary ⓘ |
| brightnessRankInTucana | brightest star in Tucana ⓘ |
| celestialLatitude | approximately −64 degrees ⓘ |
| celestialLongitude | approximately 23 degrees ⓘ |
| colorIndexBminusV | +1.35 ⓘ |
| constellation | Tucana NERFINISHED ⓘ |
| declination | −60° 15′ ⓘ |
| distanceFromEarth_ly | about 199 light-years ⓘ |
| distanceFromEarth_pc | about 61 parsecs ⓘ |
| effectiveTemperature_K | about 4300 ⓘ |
| evolutionaryStage | red giant branch ⓘ |
| FlamsteedDesignation | none ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasColor | orange ⓘ |
| hasCompanion | Alpha Tucanae B NERFINISHED ⓘ |
| isLocatedIn | southern celestial hemisphere ⓘ |
| isPartOf | constellation Tucana ⓘ |
| isUsedIn | celestial navigation in southern skies ⓘ |
| isVisibleTo | naked eye ⓘ |
| luminosity_solar | about 400 ⓘ |
| mass_solar | about 2.5 ⓘ |
| metallicity_FeH | near solar ⓘ |
| notableFor |
being the brightest star in Tucana
ⓘ
its prominent orange hue ⓘ |
| parallax_mas | about 16.4 ⓘ |
| properMotionDec_masPerYr | −12 ⓘ |
| properMotionRA_masPerYr | +88 ⓘ |
| radialVelocity_kmPerSec | about +13 ⓘ |
| radius_solar | about 37 ⓘ |
| rightAscension | 22h 18m ⓘ |
| SIMBADIdentifier | alf Tuc NERFINISHED ⓘ |
| spectralClass | K-type giant ⓘ |
| spectralType |
F-type main-sequence star
ⓘ
K3III ⓘ |
| usedAs | reference point in constellation Tucana ⓘ |
| visibility | best seen from southern latitudes ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Tucana
subject surface form:
Tucana