Gliese 581e
E935691
Gliese 581e is a low-mass exoplanet orbiting the red dwarf star Gliese 581, notable as one of the smallest exoplanets discovered around a main-sequence star at the time of its detection.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
exoplanet
ⓘ
extrasolar planet ⓘ |
| belongsToExoplanetCategory |
radial-velocity-detected exoplanets
ⓘ
short-period exoplanets ⓘ |
| catalogDesignation |
GJ 581 e
NERFINISHED
ⓘ
Gl 581 e NERFINISHED ⓘ |
| discoveredBy |
HARPS team
NERFINISHED
ⓘ
Michel Mayor NERFINISHED ⓘ Xavier Bonfils NERFINISHED ⓘ |
| discoveryAnnouncementDate | 2009-04-21 ⓘ |
| discoveryFacility | European Southern Observatory NERFINISHED ⓘ |
| discoveryInstrument | HARPS spectrograph NERFINISHED ⓘ |
| discoveryMethod | radial velocity ⓘ |
| discoverySite | La Silla Observatory NERFINISHED ⓘ |
| discoveryYear | 2009 ⓘ |
| distanceFromEarth |
about 20.3 light-years
ⓘ
about 6.2 parsecs ⓘ |
| equilibriumTemperature | high ⓘ |
| habitabilityStatus | considered non-habitable with current models ⓘ |
| hasOrbitalResonanceCandidate | Gliese 581b NERFINISHED ⓘ |
| hostStar | Gliese 581 NERFINISHED ⓘ |
| hostStarCatalogName |
GJ 581
NERFINISHED
ⓘ
Gliese 581 NERFINISHED ⓘ |
| hostStarEffectiveTemperature | about 3200 K ⓘ |
| hostStarLuminosity | about 0.013 solar luminosities ⓘ |
| hostStarMass | about 0.31 solar masses ⓘ |
| hostStarMetallicity | sub-solar ⓘ |
| hostStarSpectralType | M3V ⓘ |
| locatedIn | Gliese 581 planetary system NERFINISHED ⓘ |
| locatedInConstellation | Libra NERFINISHED ⓘ |
| massCategory | super-Earth ⓘ |
| minimumMass | 1.7 Earth masses ⓘ |
| notableFor |
being one of the lowest-mass exoplanets known at discovery
ⓘ
being one of the smallest exoplanets discovered around a main-sequence star at the time ⓘ |
| orbitalEccentricity | low eccentricity ⓘ |
| orbitalInclination | unknown ⓘ |
| orbitalPeriod | 3.15 days ⓘ |
| orbitalZone | interior to habitable zone ⓘ |
| orbits | Gliese 581 NERFINISHED ⓘ |
| partOf | Milky Way NERFINISHED ⓘ |
| planetStatus | confirmed planet ⓘ |
| planetType | likely rocky ⓘ |
| radius | not directly measured ⓘ |
| semiMajorAxis | 0.03 AU ⓘ |
| starTypeOfHost | red dwarf ⓘ |
| surfaceConditions | expected to be too hot for liquid water ⓘ |
| systemMultiplicity | multi-planet system ⓘ |
| tidalLockingStatus | likely tidally locked ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.