Alpha Telescopii

E465454
astronomical object blue-white star giant star star

Alpha Telescopii is a blue-white giant star that serves as the primary luminary of the southern constellation Telescopium.

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Statements (47)

Predicate Object
instanceOf astronomical object ⓘ
blue-white star ⓘ
giant star ⓘ
star ⓘ
absoluteMagnitudeV ~−1.5 ⓘ
age_Myr ~80 ⓘ
apparentMagnitudeV 3.51 ⓘ
bayerDesignation α Telescopii NERFINISHED ⓘ
belongsToMilkyWay true ⓘ
colorIndexBMinusV −0.19 ⓘ
constellation Telescopium NERFINISHED ⓘ
declination −45° 57′ 45″ ⓘ
discoverability best seen in winter and spring from southern latitudes ⓘ
distanceFromEarth_ly ~278 ⓘ
distanceFromEarth_pc ~85 ⓘ
dominantSpectralLines helium lines ⓘ
effectiveTemperature_K ~17000 ⓘ
epoch J2000 ⓘ
equatorialCoordinateSystem ICRS NERFINISHED ⓘ
evolutionaryStage subgiant to giant phase ⓘ
flamsteedDesignation 30 Telescopii NERFINISHED ⓘ
galacticLatitude_deg ~−16 ⓘ
galacticLongitude_deg ~345 ⓘ
galacticPopulation thin disk ⓘ
hasCompanions no known stellar companions ⓘ
hasExoplanets no confirmed exoplanets ⓘ
hdIdentifier HD 169467 NERFINISHED ⓘ
hemisphere southern celestial hemisphere ⓘ
hipparcosIdentifier HIP 90496 NERFINISHED ⓘ
hrIdentifier HR 6902 NERFINISHED ⓘ
hydrogenCoreStatus exhausted core hydrogen ⓘ
isPrimaryStarOf Telescopium NERFINISHED ⓘ
isVisibleToNakedEye true ⓘ
luminosity_solar ~800 ⓘ
mass_solar ~5 ⓘ
metallicity_FeH slightly sub-solar ⓘ
parallax_mas ~11.7 ⓘ
parallaxError_mas ~0.2 ⓘ
properMotionDec_masPerYr −25 ⓘ
properMotionRA_masPerYr −7 ⓘ
radialVelocity_kmPerSec −2 ⓘ
radius_solar ~4.5 ⓘ
rightAscension 18h 27m 49s ⓘ
rotationalVelocity_kmPerSec ~18 ⓘ
simbadIdentifier alf Tel NERFINISHED ⓘ
spectralClass B3IV ⓘ
variableStarStatus non-variable ⓘ

Referenced by (2)

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

Telescopium → brightStar → Alpha Telescopii ⓘ
Telescopium → brightestStar → Alpha Telescopii ⓘ