21 Tauri
E528143
21 Tauri, also known as Sterope I, is a relatively faint star in the Pleiades open star cluster in the constellation Taurus.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Pleiades member
ⓘ
main-sequence star ⓘ star ⓘ |
| age_Myr | about 100 ⓘ |
| alsoKnownAs |
Asterope I
NERFINISHED
ⓘ
Sterope I NERFINISHED ⓘ |
| angularSeparationFromSteropeII_arcmin | about 2.5 ⓘ |
| apparentMagnitudeRange | 5.7–5.8 ⓘ |
| apparentMagnitudeV | 5.76 ⓘ |
| associatedWith | reflection nebula ⓘ |
| bayerDesignation | 20 Tauri NERFINISHED ⓘ |
| belongsTo | Gould Belt region NERFINISHED ⓘ |
| belongsToAsterism | Pleiades Seven Sisters NERFINISHED ⓘ |
| bestSeenInMonth | November ⓘ |
| catalogIdentifier |
HD 23324
NERFINISHED
ⓘ
HIP 17499 NERFINISHED ⓘ HR 1140 NERFINISHED ⓘ SAO 76199 NERFINISHED ⓘ |
| colorIndexBminusV | about -0.08 ⓘ |
| constellation | Taurus NERFINISHED ⓘ |
| declination | +24° 33′ 17″ ⓘ |
| distanceFromEarth_ly | about 440 ⓘ |
| distanceFromEarth_pc | about 135 ⓘ |
| effectiveTemperature_K | about 12000 ⓘ |
| epoch | J2000 ⓘ |
| flamsteedDesignation | 21 Tauri NERFINISHED ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasCompanion | Sterope II NERFINISHED ⓘ |
| hasEquatorialCoordinatesSystem | ICRS NERFINISHED ⓘ |
| locatedIn |
Milky Way
ⓘ
Orion Arm NERFINISHED ⓘ |
| luminosity_solar | about 100 ⓘ |
| mass_solar | about 3 ⓘ |
| memberOf |
Messier 45
NERFINISHED
ⓘ
Pleiades NERFINISHED ⓘ |
| metallicity_FeH | near solar ⓘ |
| observedIn | optical wavelengths ⓘ |
| parallax_mas | about 7.4 ⓘ |
| properMotionDec_masPerYear | -45 ⓘ |
| properMotionRA_masPerYear | +20 ⓘ |
| radius_solar | about 3 ⓘ |
| rightAscension | 03h 45m 54s ⓘ |
| spectralType | B8V ⓘ |
| variable | no ⓘ |
| visibleFrom |
Northern Hemisphere
NERFINISHED
ⓘ
Southern Hemisphere NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Sterope I