Alpha Coronae Australis
E451672
Alpha Coronae Australis is the brightest star in the southern constellation Corona Australis, visible to the naked eye in the night sky.
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
star ⓘ |
| absoluteMagnitudeV | +0.77 ⓘ |
| age | about 300 million years ⓘ |
| apparentMagnitudeB | 2.88 ⓘ |
| apparentMagnitudeV | 2.82 ⓘ |
| bayerDesignation | α Coronae Australis NERFINISHED ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| celestialHemisphere | southern celestial hemisphere ⓘ |
| colorIndexBminusV | +0.06 ⓘ |
| constellation | Corona Australis NERFINISHED ⓘ |
| declination | −37° 03′ 43″ ⓘ |
| distanceFromEarth |
about 102 light-years
ⓘ
about 31 parsecs ⓘ |
| effectiveTemperature | about 9000 K ⓘ |
| equatorialCoordinateSystem | ICRS NERFINISHED ⓘ |
| flamsteedDesignation | 9 Coronae Australis NERFINISHED ⓘ |
| galacticLatitude | −13.63° ⓘ |
| galacticLongitude | 0.74° ⓘ |
| hasExoplanetsDetected | false ⓘ |
| hasPhotometricBand | V band ⓘ |
| hdDesignation | HD 165135 NERFINISHED ⓘ |
| hipparcosDesignation | HIP 88635 NERFINISHED ⓘ |
| hrDesignation | HR 6953 NERFINISHED ⓘ |
| isBrightestStarIn | Corona Australis NERFINISHED ⓘ |
| isSingleStar | true ⓘ |
| luminosity | about 25 times solar luminosity ⓘ |
| mass | about 2.3 solar masses ⓘ |
| parallax | 32.04 mas ⓘ |
| properMotionDec | −192 mas/yr ⓘ |
| properMotionRA | +88 mas/yr ⓘ |
| radialVelocity | −10 km/s ⓘ |
| radius | about 2.3 solar radii ⓘ |
| rightAscension | 18h 43m 02s ⓘ |
| rotationalVelocity | about 150 km/s ⓘ |
| simbadIdentifier | alf CrA NERFINISHED ⓘ |
| spectralClass | A2V ⓘ |
| stellarClassification | A-type main-sequence star ⓘ |
| visibility | visible to the naked eye ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.