Rasalhague

E479080

Rasalhague is the brightest star in the constellation Ophiuchus, representing the head of the serpent-bearer in the night sky.

All labels observed (2)

Label Occurrences
Rasalhague canonical 4
Rasalhague B 1

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf astronomicalObject ⓘ
star ⓘ
hasAlternativeName Alpha Ophiuchi ⓘ
hasApparentMagnitude 2.07 ⓘ
hasApparentMagnitudeV 2.07 ⓘ
hasBayerDesignation α Ophiuchi ⓘ
linked to: Alpha Ophiuchi
hasColor white ⓘ
hasCompanion Rasalhague B ⓘ
linked to: Rasalhague
hasCompanionSpectralType K-type main-sequence star ⓘ
hasConstellationAbbreviation Oph ⓘ
hasDeclination +12° 33′ 36″ ⓘ
hasDistanceFromEarth_ly approximately 48.6 ⓘ
hasDistanceFromEarth_pc approximately 14.9 ⓘ
hasEffectiveTemperature_K about 8000 ⓘ
hasEquinox J2000.0 ⓘ
hasFlamsteedDesignation 55 Ophiuchi ⓘ
linked to: Alpha Ophiuchi
hasGalacticLatitude_deg about +22.4 ⓘ
hasGalacticLongitude_deg about 35.9 ⓘ
hasHDDesignation HD 159561 ⓘ
hasHIPDesignation HIP 86032 ⓘ
hasHRDesignation HR 6556 ⓘ
hasIAUConstellation Ophiuchus ⓘ
hasLuminosity_solarLuminosity about 25 ⓘ
hasMass_solarMass about 2.4 ⓘ
hasOblateness significant ⓘ
hasParallax_mas about 67.1 ⓘ
hasRadius_solarRadius about 2.9 ⓘ
hasRightAscension 17h 34m 56.0s ⓘ
hasRotationalVelocity_kmPerSec about 240 ⓘ
hasSpectralType A5III ⓘ
A5IV ⓘ
hasTraditionalNameOrigin Arabic ⓘ
hasVariableType none known significant ⓘ
isBrightestStarIn Ophiuchus ⓘ
isIAUApprovedName true ⓘ
isInBinarySystem true ⓘ
isInConstellation Ophiuchus ⓘ
isNorthernStar true ⓘ
isPartOf Ophiuchus constellation ⓘ
linked to: Ophiuchus
isPartOfAsterism figure of Ophiuchus ⓘ
isRapidRotator true ⓘ
isVisibleFrom Northern Hemisphere ⓘ
Southern Hemisphere ⓘ
nameDerivedFrom Arabic phrase "raʾs al-ḥawwā" ⓘ
nameMeaning head of the serpent-charmer ⓘ
represents head of the serpent-bearer ⓘ

How these facts were elicited

Referenced by (5)

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

Ophiuchus → containsBrightStar → Rasalhague ⓘ
Ophiuchus → containsBrightStar → Rasalhague ⓘ
subject linked to: Oph
Rasalhague → hasCompanion → Rasalhague B ⓘ
linked to: Rasalhague
Alpha Ophiuchi → hasIAUName → Rasalhague ⓘ