Aldebaran (foreground star, not a member)

E26559

K-type giant star giant star orange giant star star

Aldebaran is a bright orange giant star in the constellation Taurus, easily visible to the naked eye and often seen in front of the Hyades star cluster.

Aliases (1)

Aldebaran ×48

Statements (48)

Predicate	Object
instanceOf	K-type giant star → giant star → orange giant star → star →
absoluteMagnitudeV	−0.63 →
age	about 6.4 billion years →
apparentMagnitude	0.85 →
bayerDesignation	Alpha Tauri →
colorIndexB−V	1.54 →
constellation	Taurus →
declination	+16° 30′ 33″ →
distanceFromEarth	about 20 parsecs → about 65 light-years →
effectiveTemperature	about 3900 K →
equatorialCoordinateSystem	J2000.0 →
evolutionaryStage	post-main-sequence star → red giant branch →
flamsteedDesignation	87 Tauri →
followedObject	Pleiades star cluster →
galacticLatitude	−20.06° →
galacticLongitude	180.97° →
hasExoplanetCandidate	Aldebaran b →
hasTraditionalName	Aldebaran →
hdNumber	HD 29139 →
hipparcosNumber	HIP 21421 →
hrNumber	HR 1457 →
isAmong	brightest stars in the night sky →
isBrightestStarIn	Taurus →
isForegroundTo	Hyades star cluster →
isMemberOf	Galactic thin disk → Milky Way →
isNotPhysicalMemberOf	Hyades star cluster →
isPrimaryStarOf	Aldebaran planetary system →
luminosity	about 400 times solar luminosity →
mass	about 1.2 solar masses →
metallicity[Fe/H]	about −0.15 →
nameMeaning	the follower →
nameOriginLanguage	Arabic →
parallax	48.94 mas →
properMotionDec	−188.94 mas/yr →
properMotionRA	+62.78 mas/yr →
radialVelocity	about +54 km/s →
radius	about 44 solar radii →
rightAscension	04h 35m 55.2s →
saoNumber	SAO 94027 →
spectralType	K5III →
variableType	slow irregular variable →
visibleToNakedEye	true →

Referenced by (1)

Subject (surface form when different)	Predicate
Hyades →	notableStar