BD+23 455
E528147
BD+23 455, also known as Sterope I, is a star in the Pleiades open star cluster in the constellation Taurus.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
main-sequence star
ⓘ
star ⓘ |
| age | about 100 million years ⓘ |
| alsoKnownAs |
21 Tauri
NERFINISHED
ⓘ
Asterope I NERFINISHED ⓘ HD 23480 NERFINISHED ⓘ HIP 17608 NERFINISHED ⓘ HR 1156 NERFINISHED ⓘ Sterope I NERFINISHED ⓘ |
| apparentMagnitudeV | 5.76 ⓘ |
| associatedWith | reflection nebula around Pleiades ⓘ |
| belongsTo | Milky Way galaxy NERFINISHED ⓘ |
| belongsToAsterism | Pleiades (Seven Sisters) NERFINISHED ⓘ |
| catalog |
Bonner Durchmusterung
NERFINISHED
ⓘ
Bright Star Catalogue NERFINISHED ⓘ Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| clusterType | open cluster ⓘ |
| colorIndexB−V | −0.06 ⓘ |
| constellation | Taurus NERFINISHED ⓘ |
| declination | +23° 57′ 29″ ⓘ |
| distanceFromEarth |
approximately 135 parsecs
ⓘ
approximately 440 light-years ⓘ |
| effectiveTemperature | about 12000 K ⓘ |
| equatorialCoordinateSystem | ICRS NERFINISHED ⓘ |
| evolutionaryStage | hydrogen-burning main sequence ⓘ |
| galacticPopulation | thin disk ⓘ |
| hemisphereVisibility | northern hemisphere ⓘ |
| locatedIn | Pleiades moving group NERFINISHED ⓘ |
| luminosity | about 70 times solar luminosity ⓘ |
| mass | about 3 solar masses ⓘ |
| memberOf | Pleiades star cluster NERFINISHED ⓘ |
| metallicity | near solar ⓘ |
| mythologicalAssociation | Pleiades sisters in Greek mythology ⓘ |
| observedIn |
optical wavelengths
ⓘ
ultraviolet wavelengths ⓘ |
| parallax | 7.4 mas ⓘ |
| properMotionDec | −45 mas/yr ⓘ |
| properMotionRA | +20 mas/yr ⓘ |
| radialVelocity | about +6 km/s ⓘ |
| radius | about 3 solar radii ⓘ |
| rightAscension | 03h 45m 54s ⓘ |
| rotation | rapid rotator ⓘ |
| spectralClass | B-type ⓘ |
| spectralType | B8V ⓘ |
| variableStarStatus | not known to be strongly variable ⓘ |
| visibleToNakedEye | yes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Sterope I