Gliese 581 star system

E269494

planetary system

The Gliese 581 star system is a nearby red dwarf system in the constellation Libra that gained prominence for its potentially habitable exoplanets and as a target for interstellar messages from Earth.

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All labels observed (5)

Label	Occurrences
Gliese 581	5
GJ 581	1
Gliese 581 planetary system	1
Gliese 581 star system canonical	1
Gliese 581 system	1

Statements (49)

Predicate	Object
instanceOf	planetary system ⓘ
apparentMagnitude	10.56 ⓘ
catalogIdentifier	Gliese 581 star system self-linksurface differs ⓘ surface form: GJ 581 Gliese 581 star system self-linksurface differs ⓘ surface form: Gliese 581 HO Librae ⓘ
declination	−07° 43′ 20″ ⓘ
discoveryMethodOfPlanets	radial velocity ⓘ
distanceFromEarth	approximately 20.3 light-years ⓘ approximately 6.2 parsecs ⓘ
hasCandidateExoplanet	Gliese 581f ⓘ Gliese 581g ⓘ Gliese 581h ⓘ
hasControversialPlanetClaims	Gliese 581f ⓘ Gliese 581g ⓘ Gliese 581h ⓘ
hasEffectiveTemperature	approximately 3500 K ⓘ
hasExoplanet	Gliese 581b ⓘ Gliese 581c ⓘ Gliese 581d ⓘ Gliese 581e ⓘ
hasHabitableZonePlanetsStatus	disputed habitability of some planets ⓘ
hasHostStarVariabilityType	flare star (low activity) ⓘ
hasLuminosityRelativeToSun	approximately 0.013 solar luminosities ⓘ
hasMassRelativeToSun	approximately 0.31 solar masses ⓘ
hasNumberOfConfirmedPlanets	at least four ⓘ
hasPlanetaryOrbitalDetectionTechnique	Doppler spectroscopy ⓘ
hasPlanetarySystemStatus	well-studied exoplanet system ⓘ
hasPrimaryStar	Gliese 581 star system self-linksurface differs ⓘ surface form: Gliese 581
hasProperMotion	high proper motion star ⓘ
hasRadialVelocity	approximately −9 km/s ⓘ
hasRadiusRelativeToSun	approximately 0.29 solar radii ⓘ
hasResearchInterest	exoplanet habitability ⓘ radial velocity signal analysis ⓘ stellar activity impact on planets ⓘ
hasStellarClass	M3V ⓘ
hasStellarType	red dwarf system ⓘ
locatedInConstellation	Libra ⓘ
messageTransmissionYear	1999 ⓘ 2003 ⓘ 2008 ⓘ
metallicity	sub-solar ⓘ
notableFor	early super-Earth exoplanet discoveries ⓘ potentially habitable exoplanets ⓘ target of interstellar messages from Earth ⓘ
partOf	Milky Way ⓘ
rightAscension	15h 19m 26.8s ⓘ
spectralType	M3V ⓘ
wasTargetOfMessage	A Message From Earth ⓘ Cosmic Call ⓘ surface form: Cosmic Call 2