Alpha Telescopii

E465454

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