Kappa Orionis
E572550
Kappa Orionis, traditionally known as Saiph, is a bright blue supergiant star marking one of the knees of the constellation Orion.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| κ Orionis | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
star
ⓘ
supergiant star ⓘ |
| absoluteMagnitudeV | −6.0 ⓘ |
| age | on the order of a few million years ⓘ |
| apparentMagnitudeV | 2.06 ⓘ |
| bayerDesignation | κ Orionis NERFINISHED ⓘ |
| belongsTo | Milky Way galaxy NERFINISHED ⓘ |
| catalogDesignation |
BD−09 1235
NERFINISHED
ⓘ
GC 7284 NERFINISHED ⓘ SAO 132542 NERFINISHED ⓘ |
| colorIndexB−V | −0.21 ⓘ |
| colorIndexU−B | −0.97 ⓘ |
| componentOf | Orion constellation asterism NERFINISHED ⓘ |
| constellation | Orion NERFINISHED ⓘ |
| declination | −09° 40′ 11″ ⓘ |
| distanceFromEarth |
about 200 parsecs
ⓘ
about 650 light-years ⓘ |
| dominantFusionProcess | helium and heavier element fusion in core or shell ⓘ |
| effectiveTemperature | about 26,500 K ⓘ |
| equatorialCoordinateSystem | ICRS NERFINISHED ⓘ |
| evolutionaryStage | post-main-sequence ⓘ |
| flamsteedDesignation | 53 Orionis NERFINISHED ⓘ |
| futureEvolution | core-collapse supernova candidate ⓘ |
| galacticLatitude | −25.3° ⓘ |
| galacticLongitude | 214.5° ⓘ |
| hasStellarWind | strong ⓘ |
| hdNumber | HD 38771 NERFINISHED ⓘ |
| hemisphereVisibility | both northern and southern hemispheres ⓘ |
| hipparcosNumber | HIP 27366 NERFINISHED ⓘ |
| hrNumber | HR 2004 ⓘ |
| locatedIn | Orion Arm of the Milky Way NERFINISHED ⓘ |
| luminosity | about 57,000 times the Sun ⓘ |
| luminosityClass | Ia ⓘ |
| marks | right knee of Orion ⓘ |
| mass | about 15 times the Sun ⓘ |
| metallicity | slightly sub-solar ⓘ |
| opticalColor | blue-white ⓘ |
| parallax | 4.38 mas ⓘ |
| properMotionDec | +1.99 mas/yr ⓘ |
| properMotionRA | +1.55 mas/yr ⓘ |
| radialVelocity | +21 km/s ⓘ |
| radius | about 22 times the Sun ⓘ |
| rightAscension | 05h 47m 45.4s ⓘ |
| spectralType | B0.5Ia ⓘ |
| surfaceGravity | low compared to main-sequence B stars ⓘ |
| traditionalName | Saiph NERFINISHED ⓘ |
| variableStarStatus | suspected variable ⓘ |
| visibleToNakedEye | true ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.