HIP 89931
E459127
HIP 89931 is the Hipparcos catalog designation for Kaus Australis, the brightest star in the constellation Sagittarius.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Hipparcos catalog star
ⓘ
astronomical object ⓘ star ⓘ |
| absoluteMagnitudeV | −1.4 ⓘ |
| alsoKnownAs |
Epsilon Sagittarii
NERFINISHED
ⓘ
Kaus Australis NERFINISHED ⓘ |
| angularSeparationFromCompanion | about 2.4 arcseconds ⓘ |
| apparentMagnitudeV | 1.79 ⓘ |
| bayerDesignation | Epsilon Sagittarii NERFINISHED ⓘ |
| belongsToConstellationAsterism | Teapot of Sagittarius NERFINISHED ⓘ |
| catalogDesignation | HIP 89931 NERFINISHED ⓘ |
| colorIndexBMinusV | −0.02 ⓘ |
| companionApparentMagnitude | about 7.4 ⓘ |
| constellation | Sagittarius NERFINISHED ⓘ |
| declination | −34° 23′ 04″ ⓘ |
| distanceFromEarth |
about 145 light-years
ⓘ
about 44.5 parsecs ⓘ |
| effectiveTemperature | about 9600 K ⓘ |
| equatorialCoordinateEpoch | J2000.0 ⓘ |
| evolutionaryStage | giant star ⓘ |
| flamsteedDesignation | 20 Sagittarii NERFINISHED ⓘ |
| galacticLatitude | −10.7° ⓘ |
| galacticLongitude | 6.0° ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasCompanion | Epsilon Sagittarii B NERFINISHED ⓘ |
| HDDesignation | HD 165135 NERFINISHED ⓘ |
| hemisphereVisibility | southern sky ⓘ |
| HRDesignation | HR 6746 NERFINISHED ⓘ |
| isBrightestStarIn | Sagittarius NERFINISHED ⓘ |
| listedInCatalog |
Henry Draper Catalogue
NERFINISHED
ⓘ
Hipparcos NERFINISHED ⓘ |
| luminosity | about 350 times solar luminosity ⓘ |
| mass | about 3.5 solar masses ⓘ |
| metallicityFeH | approximately solar ⓘ |
| multiplicity | binary star system ⓘ |
| nameEtymology | from Arabic meaning "southern bow" ⓘ |
| parallax | 22.4 mas ⓘ |
| properMotionDec | −184 mas/yr ⓘ |
| properMotionRA | +44 mas/yr ⓘ |
| radialVelocity | −19 km/s ⓘ |
| radius | about 6 solar radii ⓘ |
| rightAscension | 18h 24m 10.3s ⓘ |
| rotationalVelocity | 236 km/s ⓘ |
| SIMBADIdentifier | HIP 89931 NERFINISHED ⓘ |
| spectralType | B9.5 III ⓘ |
| traditionalName | Kaus Australis NERFINISHED ⓘ |
| visibleToNakedEye | true ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.