o Persei
E459031
o Persei is a bright B-type giant star in the constellation Perseus and a notable member of the Perseus OB2 stellar association.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Persei | 1 |
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
B-type giant star
ⓘ
spectroscopic binary ⓘ star ⓘ |
| absoluteMagnitudeV | about -4.5 ⓘ |
| age | ~10 million years ⓘ |
| apparentMagnitudeV | 3.83 ⓘ |
| BayerDesignation | o Persei NERFINISHED ⓘ |
| BDNumber | +31 0552 ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| binaryCompanionType | early-type star ⓘ |
| binaryOrbitalEccentricity | low ⓘ |
| binaryOrbitalPeriod | ~4.4 days ⓘ |
| colorIndexBminusV | about -0.20 ⓘ |
| constellation | Perseus NERFINISHED ⓘ |
| coreFusion | helium-burning core ⓘ |
| declination | +32° 17′ 18″ ⓘ |
| distanceFromEarth |
~230 parsecs
ⓘ
~760 light-years ⓘ |
| effectiveTemperature | ~24,000 K ⓘ |
| equatorialCoordinateSystem | ICRS NERFINISHED ⓘ |
| evolutionaryStage | post-main-sequence ⓘ |
| FlamsteedDesignation | 38 Persei ⓘ |
| galacticLatitude | -17° ⓘ |
| galacticLongitude | 160° ⓘ |
| galacticPopulation | young disk ⓘ |
| hasStellarWind | yes ⓘ |
| HDNumber | HD 23180 NERFINISHED ⓘ |
| HIPNumber | HIP 17608 NERFINISHED ⓘ |
| HRNumber | HR 1156 NERFINISHED ⓘ |
| locatedIn | Perseus OB2 association NERFINISHED ⓘ |
| luminosity | ~20,000 times solar ⓘ |
| mass | ~11 solar masses ⓘ |
| memberOf | Perseus OB2 association NERFINISHED ⓘ |
| parallax | 4.30 mas ⓘ |
| properMotionDec | -25 mas/yr ⓘ |
| properMotionRA | +22 mas/yr ⓘ |
| radialVelocity | +7 km/s ⓘ |
| radius | ~10 solar radii ⓘ |
| rightAscension | 03h 41m 24s ⓘ |
| SIMBADIdentifier | omi Per NERFINISHED ⓘ |
| spectralClass | B1III ⓘ |
| variableType | ellipsoidal variable ⓘ |
| visibility | naked-eye star ⓘ |
| visibleIn | northern hemisphere ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Persei