TRAPPIST-1 exoplanet system

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:concert_hall
gptkbp:announced	22 February 2017
gptkbp:apparentMagnitude	18.8
gptkbp:containsPlanet	gptkb:TRAPPIST-1b gptkb:TRAPPIST-1c gptkb:TRAPPIST-1d gptkb:TRAPPIST-1e gptkb:TRAPPIST-1f gptkb:TRAPPIST-1g gptkb:TRAPPIST-1h
gptkbp:discoveredBy	Michaël Gillon et al.
gptkbp:discoveredIn	2016
gptkbp:discoveryMethod	transit method
gptkbp:distanceFromEarth	about 39.6 light-years
gptkbp:hasTelescope	gptkb:Spitzer_Space_Telescope gptkb:VLT_(Very_Large_Telescope) gptkb:TRAPPIST_telescope
gptkbp:hostedBy	gptkb:TRAPPIST-1 ultracool dwarf
gptkbp:hostStarAge	7.6 ± 2.2 billion years
gptkbp:hostStarMass	about 0.089 solar masses
gptkbp:hostStarRadius	about 0.12 solar radii
gptkbp:hostStarTemperature	about 2550 K
gptkbp:locatedIn	gptkb:constellation_Aquarius
gptkbp:metallicityOfHostStar	low
gptkbp:NASAExoplanetArchiveID	gptkb:TRAPPIST-1
gptkbp:notableFor	largest number of Earth-sized planets in habitable zone
gptkbp:orbitalPeriodRange	1.5 to 18.8 days
gptkbp:planetsAre	rocky Earth-sized tidally locked close to host star
gptkbp:planetsInHabitableZone	gptkb:TRAPPIST-1e gptkb:TRAPPIST-1f gptkb:TRAPPIST-1g
gptkbp:potentiallyHabitable	high scientific interest
gptkbp:rating	7
gptkbp:spectralType	M8V
gptkbp:bfsParent	gptkb:ESO_(European_Southern_Observatory)
gptkbp:bfsLayer	8
https://www.w3.org/2000/01/rdf-schema#label	TRAPPIST-1 exoplanet system