Eta Serpentis
E459140
Eta Serpentis is a bright K-type giant star located in the tail region of the constellation Serpens.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
K-type star
ⓘ
giant star ⓘ star ⓘ |
| absoluteMagnitudeV | about 2.3 ⓘ |
| age_gyr | about 2.5 ⓘ |
| apparentMagnitudeV | 3.26 ⓘ |
| bayerDesignation | η Serpentis ⓘ |
| belongsToConstellationHalf | Serpens Cauda NERFINISHED ⓘ |
| catalog |
Bright Star Catalogue
NERFINISHED
ⓘ
Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| colorIndexBminusV | about +1.0 ⓘ |
| constellation | Serpens NERFINISHED ⓘ |
| declination | −02° (approx) ⓘ |
| distanceFromEarth_ly | about 60 ⓘ |
| distanceFromEarth_pc | about 18.5 ⓘ |
| effectiveTemperature_K | about 4900 ⓘ |
| energyGeneration | helium fusion in core ⓘ |
| equatorialCoordinateSystem | ICRS NERFINISHED ⓘ |
| evolutionaryStage |
core helium-burning star
ⓘ
red clump giant ⓘ |
| flamsteedDesignation | η Serpentis NERFINISHED ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasColor | orange ⓘ |
| hasExoplanet | false ⓘ |
| hdNumber | HD 165135 NERFINISHED ⓘ |
| hemisphere | celestial equator region ⓘ |
| hipparcosNumber | HIP 88567 NERFINISHED ⓘ |
| hrNumber | HR 6748 NERFINISHED ⓘ |
| locatedIn | tail region of the constellation Serpens ⓘ |
| luminosity_solar | about 10 ⓘ |
| mass_solar | about 1.6 ⓘ |
| metallicity_FeH | near solar ⓘ |
| multiplicity | single star ⓘ |
| parallax_mas | about 54 ⓘ |
| properMotionDec_masPerYr | about −88 ⓘ |
| properMotionRA_masPerYr | about +232 ⓘ |
| radialVelocity_kmPerSec | about −10 ⓘ |
| radius_solar | about 4.5 ⓘ |
| rightAscension | 18h 05m (approx) ⓘ |
| rotation | slow ⓘ |
| simbadIdentifier | eta+Ser NERFINISHED ⓘ |
| spectralClass | K0III ⓘ |
| surfaceGravity_logg | lower than Sun ⓘ |
| variableStar | false ⓘ |
| visibleFrom | most inhabited regions of Earth ⓘ |
| visibleToNakedEye | true ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.