|
gptkbp:instanceOf
|
gptkb:star
ultra-cool dwarf star
|
|
gptkbp:age
|
7.6 ± 2.2 billion years
|
|
gptkbp:apparentMagnitude
|
18.8
|
|
gptkbp:catalogue
|
gptkb:EPIC
gptkb:WISE
gptkb:2MASS
LP
|
|
gptkbp:constellation
|
Aquarius
|
|
gptkbp:declination
|
-05° 02′ 29.04″
|
|
gptkbp:diameter
|
0.121 solar radii
|
|
gptkbp:discoveredBy
|
gptkb:The_TRAPPIST_team
|
|
gptkbp:discoveredIn
|
1999
|
|
gptkbp:distanceFromEarth
|
gptkb:TRAPPIST-1_system
39.6 light-years
|
|
gptkbp:hasExoplanet
|
gptkb:TRAPPIST-1b
gptkb:TRAPPIST-1c
gptkb:TRAPPIST-1d
gptkb:TRAPPIST-1e
gptkb:TRAPPIST-1f
gptkb:TRAPPIST-1g
gptkb:TRAPPIST-1h
|
|
gptkbp:hostedBy
|
gptkb:Milky_Way
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
TRAPPIST-1
|
|
gptkbp:luminosity
|
0.000525 solar luminosities
|
|
gptkbp:mass
|
0.089 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = 0.04
|
|
gptkbp:notableFor
|
hosting seven Earth-sized exoplanets
potential habitability of its planets
target of James Webb Space Telescope observations
|
|
gptkbp:otherName
|
gptkb:2MASS_J23062928-0502285
gptkb:EPIC_246199087
gptkb:K2-112
gptkb:LP_849-31
gptkb:WISE_J230629.05-050227.9
|
|
gptkbp:parallax
|
80.4511 mas
|
|
gptkbp:properMotionRA
|
-467.045 mas/yr
922.494 mas/yr
|
|
gptkbp:radialVelocity
|
-55.0 km/s
|
|
gptkbp:rating
|
7
|
|
gptkbp:rightAscension
|
23h 06m 29.283s
|
|
gptkbp:rotationPeriod
|
3.3 days
|
|
gptkbp:spectralType
|
M8V
|
|
gptkbp:stellarPopulation
|
thin disk
|
|
gptkbp:surfaceGravity
|
5.22 (log g)
|
|
gptkbp:temperature
|
2559 K
|
|
gptkbp:variableStar
|
yes
|
|
gptkbp:variableType
|
gptkb:star
|
|
gptkbp:bfsParent
|
gptkb:TRAPPIST-1_planetary_system
|
|
gptkbp:bfsLayer
|
5
|