Astrophysics (Index)About

TRAPPIST-1

(2MASS J23062928-0502285)
(red dwarf with exoplanets within the habitable zone)

TRAPPIST-1 (2MASS J23062928-0502285) is a nearby red dwarf with seven known orbiting extra-solar planets, ranging from about 1/3 Earth mass to just above Earth mass, with possibly as many as six of them within the star's presumed habitable zone, which has encouraged much interest. They were discovered by a TRAPPIST telescope, which explains its designation. Stellar characteristics:

planetMEREorbital radiusorbital periodTeq
TRAPPIST-1b1.371.120.01154 AU1.5 days398 K
TRAPPIST-1c1.311.100.01580 AU2.4 days340 K
TRAPPIST-1d0.390.770.02227 AU4 days286 K
TRAPPIST-1e0.690.920.02925 AU6 days250 K
TRAPPIST-1f1.041.050.03849 AU9 days218 K
TRAPPIST-1g1.321.130.04683 AU12 days197 K
TRAPPIST-1h0.330.780.06189 AU19 days171 K

(star,exoplanets,red dwarf)
Further reading:
https://en.wikipedia.org/wiki/TRAPPIST-1
https://simbad.u-strasbg.fr/simbad/sim-id?Ident=TRAPPIST-1
http://www.spitzer.caltech.edu/images/6294-ssc2017-01h-The-TRAPPIST-1-Habitable-Zone
http://www.openexoplanetcatalogue.com/planet/TRAPPIST-1%20e/
RedshiftParsecs
/Distance
Lightyears
/Lookback Years
  
~012.5pc40.7lyTRAPPIST-1
Coordinates:TRAPPIST-1
J230629.368-050229.04

Referenced by pages:
M dwarf
M-type star (M)
red dwarf
solar system
TRAPPIST
ultracool dwarf

Index